FE-Simulations as a Part of a Tolerance Management System

摘要

The high grade of multidisciplinarity in the design process of micro systems requires a extended kind of management of tolerances within the quality assurance. 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. This circumstance requests a tolerance description which is independent of dimension on the one hand and tolerance calculation, which leaving the path of simple vector algebra and linear relations between tolerance parameters, on the other hand. 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 latest step of development, the integration of FE-Simulations. For a better understanding a MEMS example is shown.