 | FE-Simulations as a Part of a Tolerance Management System
D. Straube, C. Germer, H.-J. Franke, U. Triltsch and S. Büttgenbach
Technical University Braunschweig, DE
Keywords:
tolerances, FEM, optimization, linear actuator
Abstract:
This paper reports on a software tool, which enabled tolerance management based on FE-Simulations and want to deliver impressions of the benefits of this coupling. The term tolerance management unites analysis, i.e. investigation of effects from input tolerances on target tolerance, and synthesis, i.e. the meaningful allocation of input tolerances. Classical methods of tolerance management being used in engineering design merely work on geometric quantities, like lengths and angles, utilizing simple vector algebra. With micro system technologies further units have to be regarded as well. These are for example material data, electrical and magnetic fields, temperatures and many more. This circumstance requests on the one hand a tolerance description which is independent of dimension and on the other hand a more powerful tolerance calculation. The software called “Tolerance Analysis and Synthesis Tool for Micro Systems” (µ-ToAST) tracks this extended approach for tolerance management and is in continuous development. This paper will show the last step of development, the integration of FE-Simulations.
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