Thermo-electric Actuator (MEMS) Robust Design Optimization

Multi Objective Problem definition

determine the optimized robust design geometric configuration of the Thermo-electric Actuator at Six Sigma level when subjected to a Multi-objective optimization, The objectives are:

• Minimize Mass - to reduce the latency
• Maximize Displacement - to maximize system performance
• Minimize Standard Deviation - for robust design requirements
• Minimize Stress&Temperature - to improve the operating conditions and avoid premature failures

Sobol DOE is created for the Statistical Analysis, Metamodel creation, and used to populate the initial design space
MOGA-II algorithm is used for optimization

Results from Optimization

• In few hours modeFRONTIER tested 112 500 designs when metamodels were used, the same task would have taken days for a single operator
• modeFRONTIER found the optimum design achieving a 49.7% performance improvement from the initial design
• A Robust Design Configuration at Six Sigma level has been obtained
• modeFRONTIER created an automatic procedure: once the parametric model is set, the optimizator will keep iterating it until it finds the best configurations