Patents by Inventor Omid B. Nakhjavani

Omid B. Nakhjavani has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10239635
    Abstract: A method for balancing an aircraft turbofan engine using a respective artificial neural network for each flight of multiple reference aircraft to predict the engine vibrations that would be produced in response to input of flight parameter and balance weight data acquired from a flight of a test aircraft of the same type. The resulting sets of predicted vibrations are then processed to identify and collect those engine vibration predictions which match or nearly match the engine vibration measurements acquired from the test aircraft during its flight test. For each matching modeled flight of the reference aircraft, the magnitude and phase angle of the mass vector for any commonly used balance weight configurations are determined and included in a list of recommended balance weight configurations. A technician can then reconfigure the balance weights attached to the engine on the test aircraft in accordance with a selected recommendation.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: March 26, 2019
    Assignee: The Boeing Company
    Inventor: Omid B. Nakhjavani
  • Publication number: 20190019407
    Abstract: A method to find and report an available parking space in a parking lot, where a software application is installed on a memory device coupled to a processor on a dedicated computing platform in an automobile. The dedicated computing platform further including a geographic localizing program, a mapping software providing a digital parking space map superimposed on a real map of the parking lot, a statistical analysis software calculating probability of occupied or available status of a parking space based on data provided by the dedicated computing platform, a transceiver transmitting availability status of the parking space in the parking lot to a central processing unit. Where the central processing unit further transmits availability status of the parking spaces in the parking lots to the dedicated computing platform, thus enabling the dedicated computing platform to report on available parking spaces in the parking lots.
    Type: Application
    Filed: May 30, 2018
    Publication date: January 17, 2019
    Inventor: OMID B. NAKHJAVANI
  • Publication number: 20190005158
    Abstract: A method, system, and apparatus for managing a part design. The method comprises processing, by a computer system, a finite element model for a part to refine a part topology and generate a number of configurations, in which each configuration has a part weight and a number of different parameters that change the part weight and meet a specification for the part. The method analyzes a part geometry model and a selected manufacturing process to estimate a resource use for manufacturing the part. In response to determining that the part weight or the resource use for a configuration is unacceptable, the method iteratively edits the configuration, refines the part topology to generate an updated configuration, and analyzes the selected manufacturing process to estimate the resource use, until an optimized configuration is identified. The method outputs a file for the optimized configuration, enabling manufacturing of the part using the part design.
    Type: Application
    Filed: June 30, 2017
    Publication date: January 3, 2019
    Inventor: Omid B. Nakhjavani
  • Publication number: 20180354646
    Abstract: A method for balancing an aircraft turbofan engine using a respective artificial neural network for each flight of multiple reference aircraft to predict the engine vibrations that would be produced in response to input of flight parameter and balance weight data acquired from a flight of a test aircraft of the same type. The resulting sets of predicted vibrations are then processed to identify and collect those engine vibration predictions which match or nearly match the engine vibration measurements acquired from the test aircraft during its flight test. For each matching modeled flight of the reference aircraft, the magnitude and phase angle of the mass vector for any commonly used balance weight configurations are determined and included in a list of recommended balance weight configurations. A technician can then reconfigure the balance weights attached to the engine on the test aircraft in accordance with a selected recommendation.
    Type: Application
    Filed: June 8, 2017
    Publication date: December 13, 2018
    Applicant: The Boeing Company
    Inventor: Omid B. Nakhjavani
  • Publication number: 20180354630
    Abstract: Methods for balancing aircraft turbofan engines using an artificial neural network and a global optimization algorithm, which are configured as a loop in which: the global optimization algorithm inputs to the artificial neural network data representing proposed changes in the balance weight attached to the engine; the artificial neural network outputs data estimating changes in engine vibration in response to input of the data representing the proposed changes in balance weight; and the global optimization algorithm outputs an optimum influence coefficient calculated using a minimum predicted change in engine vibration. This process can be repeated multiple times to derive a multiplicity of optimum influence coefficients which are used to determine an optimal balance solution for the engine. The balance weights attached to the engine are then reconfigured in accordance with the optimal balance solution.
    Type: Application
    Filed: June 7, 2017
    Publication date: December 13, 2018
    Applicant: The Boeing Company
    Inventor: Omid B. Nakhjavani
  • Patent number: 10147321
    Abstract: A parking exchange application method and system for securing an available parking space on a street corner. A responding driver in a car temporarily occupies an available parking space and informs a central processing database of the address of the available parking space. A requesting driver searching for an available parking space in a location vicinity, transmits a request to the central processing database. The central processing database compiles a list of available parking spaces addresses, and the requesting driver selects one of the available parking spaces, and drives toward the selected available parking space. Upon arrival, the central processing database makes payments of a transfer fee to the requesting drive, in exchange for the selected available parking space, and a commission fee to the parking exchange application, from an authorized fee payment from the requesting drivers, and the requesting driver occupies the available parking space.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: December 4, 2018
    Inventor: Omid B. Nakhjavani
  • Patent number: 10118709
    Abstract: In one example, a strut for mounting a jet engine to a wing of an aircraft includes a plurality of engine mounts and a space frame truss supported from the wing and including front and aft portions, the front portion being coupled to and supporting the engine mounts, the aft portion extending upwardly and rearwardly from an aft end of the front portion. By removing the aft end of the strut from the core exhaust zone of the engine, substantial reductions in the weight and drag of the strut, and a corresponding increase in the specific fuel consumption of the associated aircraft may be achieved.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: November 6, 2018
    Assignee: The Boeing Company
    Inventors: Omid B. Nakhjavani, Robert H. Willie, Paul S. Park, Mohammad Ali Heidari, Leonard J. Hebert, Milan Stefanovic, Parminder Singh, Naimishkumar B. Harpal, Andrew Y. Na
  • Patent number: 10108766
    Abstract: Methods and apparatus for analyzing fatigue of a structure and optimizing a characteristic of the structure based on the fatigue analysis are disclosed herein. An example method disclosed herein includes obtaining mass and unit stress values of a plurality of details of interest of a structural component, calculating fatigue margins for each of the details of interest, identifying among the calculated fatigue margins any negative fatigue margins associated with one or more of the details of interest, and adjusting, via a processor, a dimensional characteristic of each detail of interest associated with the negative fatigue margin(s) until positive fatigue margin(s) at each detail of interest is obtained.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: October 23, 2018
    Assignee: THE BOEING COMPANY
    Inventors: Micah D. Druckman, Milan Stefanovic, Omid B. Nakhjavani
  • Patent number: 10042962
    Abstract: An apparatus is provided for implementation of a mid-surface modeler including a receiver, selector, clusterer and mid-surface constructor. The receiver is to receive a solid model of a structural product composed of structural components, with the solid model representing the components by a collection of geometry. The selector is to select a group of geometry from the geometry in the solid model, with the group of geometry having approximately the same shape, and being perpendicular to an axis of a local coordinate system. The clusterer is to cluster geometry of the group of geometry into one or more clusters of geometry based on a relationship between the geometry, with each cluster of the cluster(s) representing a component of the component(s). And the mid-surface constructor is to construct a mid-surface model of the product, including computation of respective one or more mid-surfaces for the cluster(s).
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: August 7, 2018
    Assignee: THE BOEING COMPANY
    Inventors: Omid B. Nakhjavani, James S. Lee, Gregory M. Anderson
  • Patent number: 10018151
    Abstract: Methods and apparatus to vary reverse thrust of aircraft engines are disclosed. An example cascade apparatus disclosed herein includes a cascade frame having a first end, a second end, and a fixed structure extending between the first end and second end, where the cascade frame defines a slot. A cascade forms a reverse thrust flow path and at least a portion of the cascade is slidably coupled to the frame via the slot. The cascade slides relative the frame between a first position to produce a first reverse thrust and a second position to produce a second reverse thrust, where the first reverse thrust is different than the second reverse thrust.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: July 10, 2018
    Assignee: The Boeing Company
    Inventors: Omid B. Nakhjavani, Anthony K. Gilbert, Andrew Na, Mohammad A. Heidari
  • Publication number: 20180170562
    Abstract: In one example, a strut for mounting a jet engine to a wing of an aircraft includes a plurality of engine mounts and a space frame truss supported from the wing and including front and aft portions, the front portion being coupled to and supporting the engine mounts, the aft portion extending upwardly and rearwardly from an aft end of the front portion. By removing the aft end of the strut from the core exhaust zone of the engine, substantial reductions in the weight and drag of the strut, and a corresponding increase in the specific fuel consumption of the associated aircraft may be achieved.
    Type: Application
    Filed: February 8, 2018
    Publication date: June 21, 2018
    Inventors: Omid B. Nakhjavani, Robert H. Willie, Paul S. Park, Mohammad Ali Heidari, Leonard J. Hebert, Milan Stefanovic, Parminder Singh, Naimishkumar B. Harpal, Andrew Y. Na
  • Publication number: 20180162541
    Abstract: Variable incident nacelle apparatus and methods are disclosed herein. An apparatus for varying an incident angle of a nacelle of an aircraft engine relative to an aircraft wing comprises a pylon frame member to be rigidly coupled to the aircraft engine. The pylon frame member is to be pivotable about a first axis of rotation. The apparatus further comprises a diagonal brace including a first end defining an aperture to receive a portion of a drive member. The portion of the drive member is to be rotatable relative to the aperture about a second axis of rotation. The drive member includes a pin positioned eccentrically relative to the second axis of rotation. The pin is to be coupled to the pylon frame member to pivot the pylon frame member in response to rotation of the portion of the drive member.
    Type: Application
    Filed: December 14, 2016
    Publication date: June 14, 2018
    Inventors: Christopher T. Jasklowski, Omid B. Nakhjavani
  • Patent number: 9896217
    Abstract: In one example embodiment, a strut for mounting a jet engine to a wing of an aircraft includes a plurality of engine mounts and a space frame truss supported from the wing and comprising front and aft portions, the front portion being coupled to and supporting the engine mounts, the aft portion extending upwardly and rearwardly from an aft end of the front portion. By removing the aft end of the strut from the core exhaust zone of the engine, substantial reductions in the weight and drag of the strut, and a corresponding increase in the specific fuel consumption of the associated aircraft may be achieved.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: February 20, 2018
    Assignee: The Boeing Company
    Inventors: Omid B. Nakhjavani, Robert H. Willie, Paul S. Park, Mohammad Ali Heidari, Leonard J. Hebert, Milan Stefanovic, Parminder Singh, Naimishkumar B. Harpal, Andrew Y. Na
  • Patent number: 9874176
    Abstract: Methods and apparatus to vary reverse thrust of turbofans are disclosed. An example cascade apparatus disclosed herein includes a fixed frame having a plurality of fixed vanes coupled to the frame, where each of the fixed vanes defines a plurality of slots. A plurality of movable vanes intersects the fixed vanes to form a reverse thrust flow path and slidably coupled to the fixed vanes via the slots. The movable vanes slide relative to the fixed vanes between a first position to provide a first reverse thrust and a second position to provide a second reverse thrust different from the first reverse thrust.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: January 23, 2018
    Assignee: The Boeing Company
    Inventor: Omid B. Nakhjavani
  • Patent number: 9875323
    Abstract: An apparatus and method for a computer implemented tool for designing fasteners to satisfy design rules and optimize the engagement between the locking insert of the bolt and the insert threads to achieve the best solution which has maximum engagement or friction, minimum vibration and weight.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: January 23, 2018
    Assignee: THE BOEING COMPANY
    Inventors: Omid B. Nakhjavani, Kambiz Aubon
  • Patent number: 9770873
    Abstract: A system and method for creating an optimized composite laminate structure containing a plurality of plies. The system has a processor and a memory, including an application interface. The application interface, when executed by the processor, is configured to operably: receive an input file having one or more of a maximum number of plies, design variables, material properties, and design constraints; determine an initial layup sequence defining parameters of a fiber orientation angle for each ply, and a total percentage of plies at a given fiber orientation angle; iteratively adjust the parameters, until an optimum set of parameters is obtained that achieves one or more predetermined margins of safety, and that achieves optimization of the composite laminate structure; and generate an output file for creating a layup, according to the parameters. The system further has a layup system for creating the optimized composite laminate structure.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: September 26, 2017
    Assignee: The Boeing Company
    Inventors: Anthony K. Gilbert, Omid B. Nakhjavani, Shahriar Khosravani, Mohammad Ali Heidari, James F. Ackermann, Mostafa Rassaian, Forouzan Behzadpour
  • Patent number: 9754053
    Abstract: There is provided a system for reading geometric data from parametric model or a nonparametric model from a CAD model file. The system has a processor and an interface application, which when executed by the processor, is configured to operably receive automatically, using a first interface application, an input file that includes data representing one or more components of a three-dimensional model, and is further configured to operably determine, using the first interface application, a type of a part represented by the three-dimensional model. The first interface application has instructions, one or more algorithms, or a combination thereof, and is further configured to automatically operably identify, select, and group geometric data associated with specific geometric data of the three-dimensional model, based on a set of parametric rules. The processor writes extracted specific geometric data to a first geometry intermediate output file.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: September 5, 2017
    Assignee: The Boeing Company
    Inventors: Mohammad Ali Heidari, Anthony K. Gilbert, James S. Lee, Omid B. Nakhjavani, Eric S. Lester, Arun Kannayiram Jeyavelu, Ayusman Tripathy
  • Patent number: 9719466
    Abstract: A system and method for providing reverse thrust is disclosed. The system can include one or more cascade elements. The one or more cascade elements can each include a plurality of vanes to redirect engine thrust in a forward direction relative to travel. Some, or all, of the vanes can include raised geometric patterns configured to increase the mixing of the airstreams between the reversed engine thrust and the airstream over the vehicle to reduce noise and improve reverse thrust. The angle, curvature, and geometric pattern of the vanes can be optimized for a particular cascade element, engine, location on the engine, row, or can be optimized individually to maximize reverse thrust and minimize noise.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: August 1, 2017
    Assignee: The Boeing Company
    Inventor: Omid B. Nakhjavani
  • Publication number: 20170197723
    Abstract: In one example embodiment, a strut for mounting a jet engine to a wing of an aircraft includes a plurality of engine mounts and a space frame truss supported from the wing and comprising front and aft portions, the front portion being coupled to and supporting the engine mounts, the aft portion extending upwardly and rearwardly from an aft end of the front portion. By removing the aft end of the strut from the core exhaust zone of the engine, substantial reductions in the weight and drag of the strut, and a corresponding increase in the specific fuel consumption of the associated aircraft may be achieved.
    Type: Application
    Filed: January 7, 2016
    Publication date: July 13, 2017
    Inventors: Omid B. Nakhjavani, Robert H. Willie, Paul S. Park, Mohammad Ali Heidari, Leonard J. Hebert, Milan Stefanovic, Parminder Singh, Naimishkumar B. Harpal, Andrew Y. Na
  • Patent number: 9669942
    Abstract: A fastener providing protection against damage to an aircraft resulting from lightning strikes includes an elongated shaft having a head disposed at an upper end thereof, one, the other, or both of the shaft and the head containing a circumferential groove disposed proximate an intersection of the shaft and the head, a lower surface of the head including a plurality of grooves extending radially outward from the circumferential groove and terminating at an outer periphery of the lower surface. A tubular sleeve is disposed concentrically about the shaft and has a plurality of through-slots disposed therein. Each through-slot has a lower end disposed above a lower end of the sleeve, and an upper end disposed in fluid communication with the circumferential groove, such that superheated gases and particles generated in interfaces between the fastener and the adjacent skin due to lightning strikes are vented harmlessly to the atmosphere through the channels and grooves.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: June 6, 2017
    Assignee: The Boeing Company
    Inventors: Shahriar Khosravani, Poh Soong Tang, Omid B. Nakhjavani, Hamid Jamshidiat, Darrin M. Hansen