Abstract: A method of phasing u-joints of a steering shaft assembly in a three shaft, two u-joint arrangement involves inputting steering shaft assembly coordinates to a first spreadsheet, generating a computer-aided design image of the steering shaft assembly based on the steering shaft assembly coordinates, performing kinematics calculations of the steering shaft assembly using the computer-aided design image, exporting kinematics calculation results to a second spreadsheet, graphing relative steering shaft assembly speeds relative to a rotational position of the steering shaft assembly in accordance with the kinematics data, analyzing graphs of the steering shaft assembly speeds for phasing compliance, and analyzing graphs of the steering shaft assembly speeds for relative speed compliance. Finally, phasing the yokes on either end of the intermediate shaft of the steering shaft assembly in accordance with the speed of the steering shaft and the speed of the gearbox input shaft is accomplished.

Abstract: A method of controlling hydraulic pressure to a torque converter is provided. The method includes: determining a slip error from a target slip value and a measured slip; integrating said slip error; determining a state space feedback control matrix for said measured slip; determining a state space feedback control matrix for said integrated slip error; and controlling pressure based on said state space feedback control matrix for said measured slip and said state space feedback control matrix for said integrated slip error.

Abstract: Determination values are obtained by calculating values for each partial model of a complete model base at each unit time, and by integrating absolute values of change amounts of the values and absolute value of change amount of a product of at least two values, according to the engine acceleration pattern. A set of the determination values including a specific determination value of a specific partial model having the most influence on a specific value calculated using the model base is selected, wherein the specific determination value is the largest among the determination values of all the partial models. A higher priority is assigned to a partial model with a higher determination value. The model base is determined by omitting a partial model from the complete model base in order of ascending priority until a desired processing load of calculating the specific value is obtained.

Abstract: A method and apparatus for predicting the shape of a contact region of a finite element model deformed against a contact surface. The contact surface may be a rigid body or another finite element model. The shape of a contact region is dictated by the node/element distribution in response to a simulated load. This procedure uses curve fitting to predict the boundary of a contact region for a specified load condition based upon an analysis of contact region shapes generated by finite element analysis for each load within a range of simulated loads. In this manner, the discrete nature of the contact region boundary associated with finite element analysis results at a single load is overcome using information derived from previous load simulations. The approach improves the accuracy and resolution of simulated contact shape boundaries without a corresponding increase in processing resources.

Abstract: A method for estimating the cylinder interior pressure of an internal combustion engine from a cylinder pressure model having at least the input variables load, speed of rotation, and crank angle (Ppressure model), which forms the cylinder interior pressure (Pgas) to be determined, corrected by a pressure correction value (?Pgas). The pressure correction value (?Pgas) is determined from an observation of the alternating moments at the crankshaft. The modeled value of the cylinder interior pressure from the pressure model is obtained as a pre-control value, and corrected with a correction value formed from the measured value of the non-uniformity of rotation.

Abstract: A design of a tire can be facilitated. An optimization apparatus 30 inputs known design parameters of the shape, structure, and pattern of a tire, and performances thereof by an experimental data input unit 40 and learns, as a conversion system of a neural network, a correlation between design parameters of the shape, structure, and pattern of the tire, and performances thereof. Ranges which constrain performances of the tire and design parameters of the shape, structure, and pattern of the tire, which are to be optimized, are inputted in an optimization item input unit 42, and the performances of the tire are predicted in an optimization calculation unit 34 from the design parameters of the shape, structure, and pattern of the tire by using the optimization item and models of the calculation unit 32, and an objective function is optimized until the objective function which is the performances of the tire is converged.

Abstract: A method of loading material into a dump body of a truck using a loading bucket whose volumetric capacity is approximately ? or more than that of the dump body is provided. The dump body having side walls that are spaced relatively wider than conventional dump bodies. The loading bucket having a gate at a lower end thereof that when free swings open and causes the material contained in the loading bucket to drop into the dump body. The method including the steps of filling the loading bucket with an amount of earthen material and centering the loading bucket over the dump body. The bucket is then lowered to a position that: (1) substantially minimizes the clearance between the floor of the dump body and the swinging gate in its freed position; (2) allows the swinging gate to clear the side walls of the dump body as it swings through an arc after it is freed, and (3) allows the material to be discharged substantially in the center of the dump body.

Abstract: A method for forecasting performance for and characterizing the properties of a multilayer low permeability gas reservoir. The method includes a coupled well/reservoir predictive model that accounts for pressure drop between layers, allowing accurate, rigorous, and rapid forecasting of reservoir performance. The method provides estimates of individual layer properties such as in-situ permeability, skin factor, fracture half-length, fracture conductivity, drainage area, etc. by simultaneously history matching production data and production log data using the coupled well/reservoir predictive model.

Abstract: A system is provided for full-vehicle analytical road-loads prediction, which reduces the time and cost of modeling tires and tire-road interface, using road load simulations rather than actual measurements. The system includes a method to perform tire tests in a virtual environment, a road-load tire model for simulations in multibody environments; a tire model for FE simulations; and a comprehensive graphical user interface to support the user in all the steps of the analytical process.

Abstract: Detection of the overstepping of design loads of an aircraft tailplane may include determining current bending and twisting moments applied to the aircraft. The determined bending and twisting moments are compared with a safety envelope to determine the risk of developing permanent deformations on the tailplane. A determination is made as to whether a structural inspection of the tailplane should be performed based on the comparison result.

Abstract: Aircraft leading edge device systems and methods for sizing such systems are disclosed. In one embodiment, a spanwise lift coefficient distribution for an airfoil corresponding to at least one design condition and at least one aircraft angle of attack is identified, and a leading edge device chord length is sized to at least approximately achieve the selected spanwise lift coefficient distribution. In another embodiment, a spanwise distribution of aircraft angles of attack corresponding to local maximum lift coefficients for an airfoil operated at a design condition is identified, and a leading edge device chord length at each of a plurality of spanwise locations is sized to achieve the distribution of aircraft angles of attack corresponding to local maximum lift coefficients. In yet another embodiment, a leading edge device chord length is tapered in two, at least approximately opposite, spanwise directions.

Abstract: A system or method for controlling the delivery of fuel into the transient flow of an exhaust system to control emissions. A mathematical model representative of the exhaust system can be used to determine, based on operating conditions of the exhaust system, a rate of fuel delivery suitable for achieving a desired result. The desired result can be to increase the temperature of a diesel particulate filter to a temperature suitable for regeneration without exceeding a temperature that may damage the diesel particulate filter.

Abstract: A computer-implemented-ergonomic system for designing manufacturing workstations is provided. The system includes a data store for storing a plurality of workstation templates. Each workstation template includes parameters for a particular type of manufacturing workstation. Additionally, the system provides a data store for storing vehicle data indicative of a vehicle to be manufactured in the workstation. In another aspect of the present invention, the system includes a configuration subsystem adaptive to receive vehicle data and at least one workstation template and operative to configure the workstation template for the vehicle. Additionally, the system provides a data store for storing ergonomic design rules that govern a design of a manufacturing workstation. The system further includes an evaluation subsystem adaptive to receive the ergonomic design rules in data communication with the configuration subsystem.

Abstract: A method for designing a PAB door for an invisible airbag provided to a passenger-side seat of a vehicle includes defining levels of a noise factor depending on a process condition of laser scoring for forming a tearseam on an inner surface of an instrument panel. Control factors and levels of each control factor are defined that affect stress distribution and deformation rate of the tearseam. A combination is arranged that includes levels of the control factors according to an experimental design, inputting each noise factor to each combination and measuring a minimum impulse ‘X’ that is able to tear the tearseam, and a maximum impulse ‘Z’ that is unable to tear the tearseam in the case of a head impact. The level of each control factor is selected based on the measured minimum impulse ‘X’ and the measured maximum impulse ‘Z’.

Abstract: Disclosed is to provide a design method and design system for a vehicular lamp, a program to execute designing of vehicular lamp and a record medium recording the program, which are capable of improving an efficiency of designing a lamp satisfying design conditions including performance conditions required as the vehicular lamp and restriction conditions given to each lamp. A vehicular lamp design system 1 includes: a database unit 2 having standard database 21 registering standard data of a lamp and technology database 22 registering technology data including shape templates utilizable as shape data; and a lamp preparation unit 3. The standard data selection part 31 of the lamp preparation unit 3 generates design data by selecting standard data from the standard database 21 based on given design conditions. The morphing control part 32 updates the design data by use of the parameterized shape templates of the technology database 22 and the like.

Abstract: A system and method for computer-aided engineering analysis using direct mesh manipulation of a mesh model is provided. The system includes a computer system having a memory, a processor, a user input device and a display device. The method includes the steps of selecting a geometric model in a computer-aided design (CAD) format, converting the CAD model into a mesh model and evaluating the mesh model using a computer-aided engineering (CAE) analysis. The method also includes the steps of modifying a surface of the mesh model by varying a predetermined parameter using direct surface manipulation (DSM), updating the mesh model and using the updated mesh model in further CAE analysis.

Abstract: A method of calculating probability of collision by birds within a wind park includes modeling a wind turbine to create a wind-turbine model, modeling a challenged bird to create a challenged-bird model, modeling a wind park to create a wind-park model, the wind park comprising at least one of the wind turbine, and calculating a probability of wind-turbine collision by the challenged bird. The step of calculating includes using the wind-turbine model, the challenged-bird model, and the wind-park model. A method for calculating a probability of collision by animals other than birds with structures including, but not limited to, wind turbines, is also disclosed.

Abstract: A vertical stabilizer is configured to minimize the rate of change of cross-sectional area distribution of the vehicle or device to which the vertical stabilizer is mounted. One or more “waisted” areas can be included at the tip and/or the root of the vertical stabilizers, as well as over the distance from tip to root of the vertical stabilizer. In some situations, a strake is mounted on the vehicle or device, such as an aircraft, and the vertical stabilizer is mounted to the tip of the strake. The strake can also be area ruled with one or more “waisted” sections at the juncture of the vertical stabilizer. Applying area ruling to the vertical stabilizer helps to further reduce the drag of the vehicle or device.

Abstract: A method and an apparatus for estimating tire/wheel performance by simulation is disclosed, wherein a tire/wheel assembly model of an assembly of a wheel and a tire mounted thereon is made, and a simulation of the tire/wheel assembly model rolling under a given condition is carried out to obtain an estimated data indicating performance or a characteristic of the tire, wheel or the assembly. Preferably, the tire/wheel assembly model is made through a simulation of mounting a tire model on a wheel model, taking a friction into consideration. Also, the rolling simulation is carried out taking a friction between the tire beads and wheel rim into consideration.

Abstract: An analysis model producing/assisting apparatus produces a recognition model, approximating surfaces of configuration and ridgelines thereof by planes and lines, from a configuration model showing the configuration. Thereafter, it produces a mapping model through dividing the recognition model into cubic grids, and then produces an analysis model, through mapping grid points of the mapping model onto the configuration model. When producing the recognition model, know-how for producing the analysis model, which gives an influence upon quality of the meshes of the analysis model, is take out from a database, and that know-how for producing the analysis model is applied onto the configuration model.

Abstract: A simulator for inter-vehicle radio communication includes terrain and building data and can simulate the effects of buildings in terrain on radio propagation. The simulator also models other vehicles and the shadow effects of their presence. The system comprises a simulation engine, a network simulator, a driving simulator, a database and a user interface module adapted for communication. The simulation engine simulates the propagation of communication signals between vehicles including the effects of shadowing, and also receives data from the network simulator, the driving simulator and database to generate the propagation simulation. The simulation engine outputs the results of the propagation simulation to the user interface module which translates the information into various displays.

Abstract: This invention has as its object to efficiently and effectively plan a vehicle. To accomplish this, this invention has an exterior model building program (63) for building an exterior model having information associated with the exterior of a vehicle, a reference model building program (64) for building a reference model having information associated with reference components of the vehicle, and information associated with the sitting positions and postures of passengers, and a display program (65) for superimposing the built exterior model and reference model on the basis of a predetermined rule.

Abstract: A graphical user interface devices, methods, and systems for creating and editing a simulation model and for presenting the simulation model simulated within a scenario are provided. The device includes a first component that allows a user to enter and edit platforms and associated attributes for the simulation model. Commodities can be entered, edited via a second component, or assigned to a platform via a third component. A directory structure includes an organizational units and platform directory structures. The platform directory structures store platform information based on platform type. Platforms, commodities, or scenario aspects can be reviewed and edited using a graphical user interface. The present invention provides an output for allowing a user to view commodity usage at any desired aspect of the simulation model. The simulation model is created using a simulation reference modeling language.

Abstract: A method of making a finite element model of a tire is disclosed. The tire is provided in a tread portion with a fine groove having a dead end including at least the bottom. The tread portion is divided into elements so that the elements include first elements on one side of the fine groove and second elements on the other side of the fine groove, and the first elements and second elements have nodes in common at the dead end, but the first elements and second elements do not have nodes in common at other positions than the dead end.

Abstract: A method and system for analyzing performance of a turbine. The turbine optimizer allows a user to evaluate the current performance of their turbine with its current configuration and the future performance of their turbine with a modified configuration. The turbine optimizer determines the current performance characteristic of the turbine based on the current configuration information. Upon receiving from a user a request to display the future performance characteristics, the turbine optimizer calculates the performance characteristics for that turbine if various modifications are made to its configuration. The turbine optimizer may provide a graph that illustrates the current performance characteristics and future performance characteristics with those modifications. The turbine optimizer may also calculate various financial estimates based on the current operating characteristics or future operating characteristics of the turbine.

Abstract: A method of transferring files between a computer on board a train and a remote station including determining if the remote station is within range of the train and establishing wireless communication between the onboard computer and the remote station. Next, the computer determines whether there are files to be transferred, and if so, transfers the file. If the remote station has updates to be transferred to the train, such updates are transferred to the onboard computer. Files and updates are also transferred between remote stations and between remote stations and a home base station. A method of adjusting a simulator includes inputting data from the train onto a simulator. The simulator is operated with the data and the simulator automatically adjusts the parameters of the simulator until the data of the simulator matches the data from the train. The data can then be process and analyzed.

Abstract: A simulator comprising computer-aided design programs for simulating a shift control algorithm stored in an ECU of an automatic transmission having hydraulic clutches. In the simulator, a simplified hydraulic model describes the entire system so as to design a third model based on which simulation is conducted. With this, by using such a simplified model, it becomes possible to decrease simulation time to 4 sec., enabling to simulation in a time close to an actual shift of approximately 1.5 sec. Moreover, the durability of transmission is tested by repeating the simulation. When the occurrence of undesirable shift phenomenon is forecast in the simulation, the shift control algorithm is corrected until the phenomenon disappears in the next simulation. With this, the manufacturing of a test transmission and a preliminary test are no longer needed, thereby further improving the efficiency and costs of transmission development.

Abstract: An analysis method of a lamp member for a vehicle, includes (1) the point group data generation step of generating point group data that represents a region to be analyzed, on the basis of CAD data of a lamp member for a vehicle, (2) the analysis parameter extraction step of extracting analysis parameters required for analysis from a storage device, (3) the analysis parameter accept step of accepting input of the analysis parameters, and (4) the analysis execution step of executing analysis in accordance with a program corresponding to a structure of the lamp member for a vehicle on the basis of the generated point group data, and the accepted analysis parameters.

Abstract: This invention provides in a safe and effective manner the experience of observing potential collision obstacles or other hazard images to the human operator of an otherwise conventional vehicle, (such as an automobile or aircraft) moving in a normal manner in a natural environment (such as an outdoor test track). The invention incorporates in addition to the mobile vehicle, computer-based image generation devices, and position, velocity, acceleration, measurement instruments to enable the simulated visual hazard images, including operator perception of and response to those hazard images. Making the actual moving vehicle part of the simulated hazard encounter means the vestibular (motion) cues and visual cues of the natural environment are very realistic, while only the computer-generated hazard images imposed on the natural environment view are virtual.

Abstract: In a flight simulator program, a flight dynamics editing module enables the user to input parameters for modifying an existing aircraft design or creating an aircraft design. Starting with the type and purpose of aircraft, the user is able to specify parameters defining the configuration, and various other aspects of the aircraft, including the number and type of engines, properties of the flight controls, type of landing gear, etc. Once the user has input the parameters, an aerodynamic coefficients generator module included with the flight simulation program determines aerodynamic coefficients for the aircraft design, using classical formulas and determining the coefficients in an appropriate order. The aerodynamic coefficients and certain parameters input by the user are then output as two flight model data files, in a format usable by the flight simulator program, so that the user can evaluate the aircraft design by flying it within the simulation.

Abstract: Methods and systems for testing and diagnosis of weapon control systems are disclosed. In one embodiment, an apparatus for testing a weapon control system includes an interface unit and a simulator unit. The interface unit is adapted to be operatively coupled to the weapon control system, and the simulator unit is operatively coupled to the interface unit. The simulator unit receives and analyzes a control signal, and transmits at least one of a first type of responsive signal indicative of a properly functioning component, and a second type of responsive signal indicative of a malfunctioning component.

Abstract: A support system comprises a support center 21 and a control measurement system 31 to be supported, which are connected via a computer network 28. The control measurement system 31 comprises means for collecting information which is available for support and when a predetermined condition holds, transmitting the collected information to the support center 21. The support center 21 comprises means for receiving the information transmitted from the control measurement system 31 and storing the received information. The information transmitted from the control measurement system 31 contains information concerning user's setting for the control measurement system 31.

Abstract: An apparatus and method for simulating airport lighting aids by providing a generator having a processor structured to receive a plurality of navigation signals representative of position and altitude of a host aircraft; a signal generator operated by the processor, the generator being structured to retrieve airport information from a database as a function of the position signal, compare the position and altitude signals with a glide path, and output a signal representative of a degree of coincidence with the glide path as a function of the position and altitude signals; and a plurality of indicators structured to receive the signal output by the signal generator and responsively output a visual indication of the degree of coincidence with the glide path.

Abstract: A method for representing the structure of an article of manufacture having a plurality of design variants includes defining a plurality of positions corresponding to different predefined locations on the article of manufacture and assigning at least one variant to each position. Each variant identifies a specific part that may be used in the respective position or a specific type of connection between a pair of parts. In any given position, at most one part or connection variant can be selected. Code rules are defined for each variant which indicate when a particular variant should be used in accordance with specified design options. The position and variant representation can be implemented as part of a bill of materials used for manufacturing resource planning.

Abstract: A system and method for designing an HVAC system using a database to manage values of properties corresponding to design elements. Elements include substantially all physical components and connections available for creating an HVAC system design. A user interface represents design elements arbitrarily selectable by a user and connectable to one another in a schematic to establish the HVAC system design. The system may provide, automatically, default values corresponding to the properties corresponding to the design elements. A user may select arbitrarily, from the design elements, an arbitrary number of selected design elements to be interconnected in the HVAC system design. A user may place and interconnect each arbitrary design element, while the system calculates, automatically, values of properties characterizing the arbitrary design elements; validating correctness of the interconnections and properties, calculating performance parameters, and providing drawings.

Abstract: A system and method that utilizes information relating to vehicle damage information including damaged vehicle area information, crush depth of the damaged areas information, and vehicle component-by-component damage information to estimate the relative velocities of vehicles involved in a collision. The change in velocity is estimated using a plurality of methods, and a determination is made as to which method provided a result that is likely to be more accurate, based on the damage information, and the types of vehicles involved. The results from each method may also be weighted and combined to provide a multi-method estimate of the closing velocity. The methods include using crash test data from one or more sources, estimating closing velocity based on the principals of conservation of momentum, and estimating closing velocity based on deformation energy resulting from the collision.

Abstract: A method, computer program, and system for generating computer-based models of seats on a passenger compartment floor plate from a first document are provided. According to an exemplary embodiment of the invention, a first document defining a plurality of seat positions and seat identities associated with the seat positions is received. Dimensions according to seat identities are extracted. A model of the seats affixed with fasteners to the passenger compartment floor plate based upon the seat positions, the extracted dimensions, and seat identities is generated. Loads on the fasteners generated by subjecting the model to an acceleration of a known magnitude and direction are simulated and stored.

Abstract: An assembly 10 which allows a vehicular damper to be virtually created and evaluated. Particularly, the assembly 10 includes a torque producer 31, a frequency filter generator 50, and analyzers 32, 34, 36 and 38. The torque produce 31 selectively produces a torque signal which is combined with a selected frequency filter provided by the generator 50, thereby producing a dampened signal which is communicated to a transmission assembly 14. The analyzer detects noise and vibration and allows a designer to evaluate the chosen frequency filter. Other filters may be used and a filter is selected based upon the noise and vibration measurements made by the analyzers 32, 34, 36, and 38. An actual damper is then constructed having a frequency characteristic which is substantially similar to the frequency characteristic of the chosen frequency filter.

Abstract: A command sequence for an autonomous UAV mission is optimized by simulating the performance of a mission in a model environment. Using a genetic algorithm, neural net, or other suitable technique this command sequence is then optimized, to improve the outcome of the mission. A factor in selecting an optimal command sequence will be its compressability. A set of one or more optimal command sequences is compiled. Each optimal command sequence is encoded into an algorithmic active packet of minimum size for uploaded to the UAV, which then executes the mission. To track the UAV in its performance of the mission without compromising its location, the active packets are executed in the simulated environment. The simulated environment is continually updated with the most current available information. The simulation results are an approximation of the current state of the UAV.

Abstract: A system for estimating on-line a set of mathematical model parameters is disclosed. The system includes a control circuit and a number of sensors electrically coupled to the control circuit. The control circuit is configured to update a group of matrix cells of a data matrix in response to receiving sensory data from the number of sensors and determine the model parameters based on the updated data matrix.

Abstract: A system and method for predicting the behavior of a complex physical system with a qualitative analysis by correctly handling algebraic loops in physical system models for diagnosis applications. This approach recognizes the presence of negative feedback effects in loop structures and analyses these effects by tracking the entry point into the algebraic loop to resolve conflicting predictions.

Abstract: A system for designing vehicle chassis carriers comprises a user interface that receives vehicle parameter data. The user interface may be implemented using a spreadsheet or other data entry application as are known in the art. A user enters the vehicle parameter data such as vehicle dimensions and geometry. A design program such as a CAD program receives the vehicle parameter data and generates a vehicle chassis carrier design according to the vehicle parameter data and design constraints. The design constraints include weights, structural strength, and clearance information with respect to the carrier, the vehicle chassis, and obstructions in the environment.

Abstract: A method and system for controlling both the pressure and temperature at the engine air intake, engine crankcase, and at the engine exhaust so that pressure and temperature conditions are equilibrated. Engines are tested both at simulated high altitudes (operating air at barometric pressures lower than the local barometric pressure at the test site) and low altitudes (operating air at barometric pressure higher than the local barometer at the test site) and at a variety of operating air temperatures. The method and system provide for the balancing of air pressure at the engine air intake and crankcase and engine exhaust. The effect of unbalanced air pressure is on engine emission test results is demonstrated.

Abstract: A system and method for simulating a component in a telematics system is described. The system and method includes a simulating a component and a establishing a communication link between the simulated component and a corresponding carlet in a telematics control unit (TCU). The simulated component can also be adjusted to a desired condition and the TCU can be monitored for a responsive output.

Abstract: A method of integrating product information management with vehicle design includes the steps of selecting a vehicle program requirement from a library stored in a memory of a computer system, wherein the library is accessed through an information portal on the computer system. The method also includes the steps of selecting an information database containing information related to the design of the vehicle from the library, wherein the information database is accessed through the information portal, and determining if the information from the information database correlates with the program requirement. The method further includes the steps of using the information from the information database in the design of the vehicle, if the information from the information database correlates with the program requirement.

Abstract: Systems and methods for, inter alia, geographically based analyses of traffic being carried over a wide scale traffic network. The systems integrate geographical information systems (GIS) with traffic simulation processes to allow a user to analyze traffic patterns and loads at specific geographic locations of regions. Additionally, these systems allow for traffic analysis over a wide scale traffic network that may encompass the traffic network that exists within an geographic region and can include, as examples, the traffic networks that span across a city, that interconnect cities, that interconnect states and that run across multiple states. To this end, the systems include traffic simulators that can adaptively or controllably select between multiple traffic simulation models for simulating traffic across different segments of the traffic network. The different models provide varying levels of granularity for measurements of geographical location of a vehicle traveling over the traffic network.

Abstract: The present invention is a method for tire rolling simulation comprising the steps of: setting a tire model by modeling a tire with the use of elements capable of numerical analysis; setting a road surface model including a road-surface matter model formed by modeling road-surface matter forming a road surface with the use of elements that can be numerically analyzed and can cause a volume change due to compression which is substantially permanent; and performing a tire rolling simulation by making the tire model get in contact with the road-surface matter model, thereby providing the tire model with rotating conditions, and conducting deformation calculations of the tire model and the road-surface matter model at minute time increment intervals.

Abstract: A modeling method of a steering system for a vehicle comprises the steps of interpreting a coupled relation between an upper tube and a lower tube comprising a steering column, interpreting a coupled relation between the upper tube and an upper bracket and a coupled relation between the lower tube and a lower bracket, and interpreting the movement of a bearing mounted between a steering axle and a steering column using a cylindrical coordinate, thereby improving credibility relative to the interpretation result of a model When the interpretation result is applied to an actual vehicle, the impact absorption capacity and idle vibration capacity are greatly increased, thereby improving the performance of the overall steering system and ensuring safety to the occupants of the vehicle.

Abstract: The Lane and Front-end Effectiveness Model (LFEM) is a self-contained PC desktop application that allows an analyst to quantitatively predict the impact of changes to their checkout operations. This application, according to the present invention, includes four simulation models representing the complex interactions between customers, staff, and checkstand resources. Three of these models are detailed lane models and the fourth is a store front-end checkout model. An analyst can use the LFEM to evaluate, in detail, different checkstand configurations and transaction processes and the effect these changes have on overall front-end performance. The purpose of this application is to provide retailers with timely information to reduce the risk and uncertainties of investing in new technologies or design changes by predicting their impact and return before committing resources to their acquisition or implementation.

Abstract: The present invention is a system and method for easily adjusting flight characteristics of a simulated aircraft. The system allows a user to adjust commanded pitch, roll or yaw values or steady state frequency response values that are associated with an atmospheric temperature value, an atmospheric dynamic pressure value, aileron position, rudder position, and elevator position.