Optimal Synthesis of Compliant Mechanisms Using Subdivision and Commercial FEA
| Autor: | Patrick V. Hull, Stephen L. Canfield |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Optimal design
Mechanism design Engineering Engineering drawing business.industry Mechanical Engineering Design tool Topology optimization Compliant mechanism Control engineering Computer Graphics and Computer-Aided Design Computer Science Applications Mechanics of Materials Design process business Engineering design process Subdivision |
| Zdroj: | Journal of Mechanical Design. 128:337-348 |
| ISSN: | 1528-9001 1050-0472 |
| DOI: | 10.1115/1.2159026 |
| Popis: | The field of distributed-compliance mechanisms has seen significant work in developing suitable topology optimization tools for their design. These optimal design tools have grown out of the techniques of structural optimization. This paper will build on the previous work in topology optimization and compliant mechanism design by proposing an alternative design space parameterization through control points and adding another step to the process, that of subdivision. The control points assist a specific design to be represented as a solid model during the optimization process. The process of subdivision creates an additional number of control points that help smooth the surface (for example a C2 continuous surface depending on the method of subdivision chosen) creating a manufacturable design free of traditional numerical instabilities. Note that these additional control points do not add to the number of design parameters. This alternative parameterization and description as a solid model effectively and completely separates the design variables from the analysis variables during the optimization procedure. The motivation behind this work is to avoid several of the numerical instabilities that occur in topology optimization and to create an automated design tool from task definition to functional prototype created on a CNC or rapid-prototype machine. This paper will describe the complaint mechanism design process including subdivision and will demonstrate the procedure on several common examples.Copyright © 2004 by ASME |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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