Abstract: A stator support 40 for an electric machine 10 includes a radial cut 70 in a support ring 46 that releases hoop stress in the support ring 46 and enables more radial displacement during heating and cold soak cycles in the stator 12, 16, thereby allowing a larger range of thermal conditions for the electric machine 10.

Abstract: A method for manufacturing a rotor assembly for an electrical machine includes printing a first part of a rotor shaft. The method also includes printing a rotor core onto the first part of the rotor shaft. In addition, the method includes printing a second part of the rotor shaft onto the rotor core; printing a first part of the rotor winding. The method also includes coupling the first part of the rotor winding to the rotor core. After coupling the first part of the rotor winding to the rotor core, the method includes printing a second part of the rotor winding onto the first part of the rotor winding to form the rotor assembly.

Abstract: A power distribution system includes a first set of power converters arranged with a respective set of power inputs, and having a respective set of power outputs, and at least one controller module communicatively connected with the first set of power converters and configured to controllably adjust the power conversion of the first set of power converters, and method of operating the power distribution system.

Abstract: A circular heatsink can include a thermally conductive cylinder with an outer circumferential surface and an inner circumferential surface. An emissive and convective and convective surface area can extend radially from the outer circumferential surface. At least one thermally conductive ledge can extend from the inner circumferential surface and be configured to support a planar substrate having heat-generating electrical components. Air flow over the emissive and convective surface area can cause thermal conduction away from the heat-generating electrical components and through the at least one thermally conductive ledge, the thermally conductive cylinder, and the emissive and convective surface area.

Abstract: A control box includes a housing defining an interior, a circuit board disposed within the interior, and an input/output connector extending from the housing. The control box further includes a heat sink removably connected to the housing such that the circuit board is positioned between the housing and the heat sink. The circuit board is in contact with the heat sink.

Abstract: One example aspect of the present disclosure is directed to a method for scheduling a message. The method includes receiving, by one or more processors, an offset and an interval associated with a virtual link. The method includes receiving, by the one or more processors, an absolute count representing a start time. The method includes designating, by the one or more processors, a plurality of transfer times for the virtual link as a function of the offset and the interval. The method includes receiving, by the one or more processors, a message associated with the virtual link at a first time. The method includes transmitting, by the one or more processors, the message at a next transfer time in the plurality of transfer times.

Abstract: Systems and methods for recording and communicating engine data are provided. One example aspect of the present disclosure is directed to a method for key management. The method includes generating a pair of keys, wherein one of the pair of keys is a private key, and wherein one of the pair of keys is a public key. The method includes transmitting the public key to a first remote computing device, wherein the first remote computing device transmits the public key to a second remote computing device. The method includes receiving a host key from the first remote computing device, wherein the first remote computing device received the host key from the second remote computing device. The method includes accessing the second remote computing device using the private key. The method includes verifying a request from the second remote computing device using the host key.

Abstract: An airflow generator (10) having a first plate (12), a second plate (14) where the second plate (14) is spaced from the first plate (12) to define a cavity (28) there between, a joint (30) operably coupled to the first plate (12) and the second plate (14) and joining them together, piezoelectrics (34) located on each of the first plate (12) and the second plate (14) wherein actuation of the piezoelectrics (34) results in movement of the first plate (12) and the second plate (14) to increase the volume of the cavity (28) to draw air in (200) and then decrease the volume of the cavity (28) to push out the drawn in air (202).

Abstract: A method and apparatus for cooling a rotor assembly includes a rotor core having a rotatable shaft and defining at least one rotor post, a winding wound around the post, and at least one coolant conduit supported by the rotor core and in a thermally conductive relationship with a portion of the winding.

Abstract: Systems and methods for autonomous distress tracking (ADT) of aerial vehicles are provided. An autonomous distress tracking (ADT) system for an aerial vehicle is provided that includes one or more ADT devices. Each device includes at least one transmitter configured to transmit messages over one or more predetermined frequency bands. And ADT control system is configured to control a transmission rate of the one or more ADT devices based on flight plan data associated with an on-going flight of the aerial vehicle and performance data associated with the aerial vehicle during the on-going flight. The ADT control system can compare the flight plan data with the performance data to determine one or more deviations associated with the flight plan data and control a transmission rate of the one or more ADT devices based on the deviations.

Abstract: A power electronic conversion system includes a first electronic component that generates heat; a mounting plate comprising a horizontal plate and a first vertical riser with vertical configuration, wherein the first vertical riser is configured to mount the first electronic component; a first thermal pad disposed between the first electronic component and the first vertical riser to reduce a contact resistance; and a cold plate coupled to the mounting plate and comprised at least one cooling medium passage defined by a plurality of internal fins.

Abstract: Systems and methods for recording and communicating engine data are provided. One example embodiment is directed to a method for performing diagnostics on an antenna in communication with a wireless communication unit located in a nacelle of an aerial vehicle engine. The method includes receiving, by one or more computing devices, a voltage from a diagnostic circuit for the antenna. The method includes determining, by the one or more computing devices, a change in a magnitude of the received voltage. The method includes determining, by the one or more computing devices, a condition of the antenna based on the change in the magnitude of the voltage.

Abstract: A method and apparatus for heat-dissipation utilizing a fin assembly including one or more fins organized on a wall or base surface. The fins can extend into a flow of fluid passing along the wall or base surface to convectively cool the fins, which can transfer heat from heat-producing components, such as electronics.

Abstract: A generator includes a stator core having a set of 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 a set of rotor poles and configured to rotate relative to the stator and a rotor channel for liquid coolant to flow through the rotor to a set of coolant apertures, and a set of rotor pole coolant channels aligned with and proximate to the set of rotor poles. The liquid coolant flow extracts heat from the generator.

Abstract: A DC link bus includes a first and second set of conductive layers, arranged between insulation layers that separate the first set from the second set. A set of positive and negative link conductors are coupled normal to a respective set of conductive layers, and coupled together to define a respective positive bus and a negative bus. Additionally, a method of forming a DC link bus includes respectively coupling a first and a second set of parallel conductive layers to each other. Coupling a set of positive link connectors, and a set of negative link connectors, perpendicular to the first set and second set of layers, respectively, and to each other to define a positive bus and a negative bus. Interdigitally arranging the first and second set of conductive layers, spacing adjacent layers of the second set of layers to reduce an inductance between the positive and negative bus.

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: 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.