Electromechanical System Simulation and Optimization Studies

Abstract

Multiphysics simulation and design optimization studies for electromechanical systems are provided herein. Electronic components are covered followed by magnetic components, radio frequency devices, actuators, and motors. The governing equations for each problem are reintroduced with the addition of defined optimization variables. In the first section, five different electronic component studies are introduced in order of increasing complexity. The optimization/design of 2-D electrothermal conductors is first presented. Next, 3-D design for thermal stress reduction of an electronics package is covered. Studies on thermal-fluid systems in 2-D and 3-D design domains are then presented for electronics cold plate design. This topic is extended to a unique case, where the motion of a magnetically susceptible coolant is controlled by designing the magnetic field. Finally, heat flow control in anisotropic composites for electronics applications is described. Moving to magnetic components, computational examples are presented including an inductor analysis and related topology optimization study. Higher frequency microstrip device and multiphysics antenna design studies are then explained. In the latter case, a sequentially solved multiphysics system is optimized with respect to both electromagnetic and structural response, with consideration of fabrication constraints. The chapter concludes with the design of actuators and motors. The magnetostructural design of a basic solenoid actuator is introduced followed by a linear actuator involving several materials, components, and design variables. Design of more complicated switched reluctance motors is finally described along with the multiphysics performance analysis of a traditional interior permanent magnet synchronous motor.