Master Thesis - Thermomechanical stress analysis of electrical machine

Background of thesis project
Electrical traction machines are typically exposed to high dynamic load and required to deliver high power density, which differ greatly from traditional industrial motors. Thermomechanical stress is developed when the machines are exposed to high temperature and temperature cycles, which affects the durability of the traction machine.
Suitable background of students
  • Mechanical Engineering or Electrical Engineering with mechanical engineering courses
  • Experience with FEM simulations on stress/structure analysis
Description of thesis work
Develop a simulation model/environment and use it to run simulations on the thermomechanical stress in the insulation systems of electrical traction machines. Use the result to suggest measurements to verify the simulated stresses.
Identify a suitable FEM simulation software. Starting from an existing electrical machine, setup the simulation model(s). Perform sensitivity studies, such as whether temperature field distribution influences on mechanical stresses. Investigate the impact on durability of traction machines. Suggest measurements to verify the simulation results.
Thesis Level: Master
Language: English
Starting date: 2020-01-10
Number of students: 2
Zhe Huang, Principle Engineer Electrical Machine, 031 5538788
Rasmus Andersson, Senior Research Engineer, 031 3231301

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