Abstract: An apparatus and method for a generator assembly for a drive train such as a rotatable turbine engine assembly. The generator assembly includes at least first and second generators mechanically coupled to the drive train. First and second dampers are operably coupled to the first and second generators, respectively, to selectively damp the first and second generators. Damping the first and second generators can reduce or eliminate both common mode and differential mode torsional oscillations from the generators to the drive train.

Abstract: A power controller adapted for operating a set of power sources includes a power characteristic input and a communications connection and a controller module. The controller module is adapted for obtaining a power characteristic at the power characteristic input, the power characteristic related to a quantity of power supplied from an associated power source to a common power bus, for obtaining at least one power system message received at the communications connection, and for determining a present share of desired power to be supplied from the associated power source.

Abstract: A discrete input determining circuit is disclosed, which includes an input biasing network connected to a discrete input for providing a first input voltage, a voltage divider network for dividing the first input voltage into a second input voltage and a third input voltage, a first comparator, wherein a non-inverting input terminal of the first comparator receives the second input voltage, and a second comparator, wherein an inverting input terminal of the second comparator receives the third input voltage, wherein an inverting input terminal of the first comparator and a non-inverting input terminal of the second comparator receive a reference voltage, and an output terminal of the first comparator and an output terminal of the second comparator are configured to provide a logic output. A discrete input determining method is also disclosed.

Abstract: A method for operating an electrical circuit for controllably delivering power from a power source to an electrical load including a switch further configured to operate in a first conducting mode and a second non-conducting mode, and a controller, the method includes ceasing delivering power from the power source to the electrical load.

Abstract: A decoupler assembly for disengaging a shaft transmitting torque between a rotatory engine and an electric generator. The decoupler assembly includes an output shaft, input shaft wherein the output shaft is selectively coupled to the input shaft. Retractable balls are incorporated into the assembly in order to couple and decouple the input shaft from the output shaft.

Abstract: A power generation system includes an electric generator mechanically driven by a variable speed kinetic source, a first power conversion system connected with an output of the electric generator, and a second power conversion system connected with the output of the electric generator, wherein the electric generator and power conversion systems are adapted to convert the output of the electric generator to a predetermined direct current (DC) voltage.

Abstract: Systems and methods for recording and communicating engine data are provided. One example embodiment is directed to a method for communicating engine data to a ground system. The method includes receiving a request to store first data in a first memory location in one or more memory devices. The method includes receiving the first data, wherein the first data is associated with identification of an engine, and wherein the first data includes parameterized data. The method includes storing the first data in the first memory location. The method includes receiving a request to store second data in a second memory location in the one or more memory devices, wherein the second memory location is reserved for data to be transmitted to the ground system. The method includes receiving the second data. The method includes storing the second data in the second memory location.

Abstract: A solar generator can include a photon-enhanced thermionic emission generator with a cathode to receive solar radiation. The photon-enhanced thermionic emission generator can include an anode that in conjunction with the cathode generates a first current and waste heat from the solar radiation. A thermoelectric generator can be thermally coupled to the anode and can convert the waste heat from the anode into a second current. A circuit can connect to the photon-enhanced thermionic emission generator and to the thermoelectric generator and can combine the first and the second currents into an output current.

Abstract: A multiple fluid model tool for utilizing a 3D CAD point-cloud to automatically create a fluid model is presented. For example, a system includes a modeling component, a machine learning component, and a three-dimensional design component. The modeling component generates a three-dimensional model of a mechanical device based on point cloud data indicative of information for a set of data values associated with a three-dimensional coordinate system. The machine learning component predicts one or more characteristics of the mechanical device based on input data and a machine learning process associated with the three-dimensional model. The three-dimensional design component that provides a three-dimensional design environment associated with the three-dimensional model. The three-dimensional design environment renders physics modeling data of the mechanical device based on the input data and the one or more characteristics of the mechanical device on the three-dimensional model.

Abstract: A liquid cooling module for cooling an electronic component includes a housing supporting the electronic component, where the housing includes a cavity containing a cooling liquid. A liquid flow channel can be in fluid communication with the cavity and define a liquid cooling loop. A cold plate supporting the housing can have a cooling channel thermally coupled to the liquid flow channel.

Abstract: Systems and techniques for memory event mitigation in redundant software installations are presented. A system can initiate an event executed by a first software application and a second software application that corresponds to the first software application. First data associated with the first software application can be stored in a first data store and second data associated with the second software application can be stored in a second data store. The system can also compare a first check value for the first data associated with the event and a second check value for the second data associated with the event. Furthermore, the system can re-initiate the event executed by the first software application and the second software application in response to a determination that the first check value does not correspond to the second check value.

Abstract: There are provided circuits and methods for surge protection. For example, there is provided a clamp circuit for protecting a load against a surge. The clamp circuit can include a power dissipation circuit including at least one transistor and a resistor. The clamp circuit can further include a voltage sensitive device configured to cause a voltage limit across the load when the surge occurs. The power dissipation circuit can be configured to turn on the at least one transistor to dissipate power across one of the resistor and the at least one transistor.

Abstract: A power distribution system can include a controller and a set of power-using devices. Each power-using device in the set can include a sensor configured to measure a parameter and transmit a sensor signal representing the parameter to the controller, and the controller can respond to the transmitted sensor signal.

Abstract: Systems and methods for communicating a signal over a hydraulic line in a vehicle are provided. In one embodiment, a system can include a hydraulic line. The hydraulic line can include at least one communication medium for propagating a communication signal. The system can also include at least one signal communication device configured to receive the communication signal communicated over the hydraulic line. The system can also include at least one vehicle component in communication with the at least one signal communication device.

Abstract: A method and decoupler for disengaging an output shaft from an engine in a back drive event with a backdrive decoupler. The backdrive decoupler includes a an output shaft, drive shaft, and a retention mechanism selectively coupling the output shaft to the drive shaft. In a backdrive event, the decoupler decouples the output shaft from the drive shaft.

Abstract: Systems and methods for determine a cost-improved set of control commands for an aircraft based at least in part on deterioration costs are provided. One example computing device is configured to iteratively: input a candidate set of control commands for the aircraft into the deterioration cost model; receive, as an output of the deterioration cost model, an estimated deterioration cost associated with the candidate set of control commands; input the estimated deterioration cost into a cost function to obtain a total estimated cost associated with the candidate set of control commands; and determine an improved set of control commands based at least in part on the total estimated cost and the cost function.

Abstract: A wet cavity electric machine includes a stator core having stator poles formed by a post and a wire wound about the post to form a stator winding, with the stator winding having end turns, a rotor having two rotor poles and configured to rotate relative to the stator and a channel for liquid coolant to flow through the rotor to at least one nozzle, and liquid coolant sprays from the at least one nozzle at least a portion of the stator windings.

Abstract: A mechanism and method for accessing message data in a shared memory by at least one client, includes an allocation of data in the shared memory, the memory configured in a plurality of buffers, and accessing the data by a client or a server without locking or restricting access to the data.

Abstract: A rotor assembly for an electric machine includes a core having at least one post and a cap wherein electrical windings are wound about the rotor assembly to define a pole. The rotation of the rotor and rotor pole relative to a stator generates a current supplied from the electric machine to a power consuming device.

Abstract: Contextual awareness associated with resources can be employed to facilitate controlling access to resources of a system, including function blocks. A resource manager component (RMC) can pre-load a defined number of respective versions of configuration parameter data associated with respective applications in each resource. With regard to each application, the RMC can associate a context value, unique for each application, with the respective versions of configuration parameter data associated with that application. When a current application is being changed to a next application, the RMC can write the context value associated with the next application to a context select component (CSC). Each resource can read the context value in the CSC, identify and retrieve the version of configuration parameter data associated with the next application based on the context value, and configure the function block based on the version of configuration parameter data.