Shape optimization framework for the path of the primary compliance vector in compliant mechanisms

Conference paper (2019)

Authors

W.W.P.J. van de Sande Mechatronic Systems Design - Mechanical, Maritime and Materials Engineering
Charles J. Kim Bucknell University
Just Herder Mechatronic Systems Design - Mechanical, Maritime and Materials Engineering , Precision and Microsystems Engineering
J.L. Herder Mechatronic Systems Design - Mechanical, Maritime and Materials Engineering , Precision and Microsystems Engineering
Research Group
Mechatronic Systems Design (Mechanical, Maritime and Materials Engineering) (TU Delft)
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Published Date

2019

Language

English

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Faculty

Mechanical, Maritime and Materials Engineering

Department

Precision and Microsystems Engineering

Research Group

Mechatronic Systems Design

Abstract

The primary compliance vector captures the predominant kinematic degree of freedom of a mechanism. Its displacement describes large deformation mechanism behavior and can be an optimization objective in detailed compliant mechanism design. This paper presents a general framework for the optimization of the PCV path of compliant mechanisms using unified stiffness characterization, Fourier descriptors, and surrogate-based optimization. We found a meaningful objective formulation that evaluates PCV path shape independently. Furthermore, we reason that design variables should effect mechanism shape. Lastly, we apply the framework to a design example.

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