Abstract
Flexure based compliant mechanisms suited for a large range of motion can be designed by handling the challenges arising from combining low compliance in the desired directions, high support stiffness, low stresses and high unwanted natural frequencies. Current topology optimization tools typically can’t model large deflections of flexures, are too conceptual or are case specific. In this research, a new spatial topological synthesis algorithm based on building blocks is proposed to optimize the performance of an initial design. The algorithm consists of successive shape optimizations and layout syntheses. In each shape optimization the dimensions for some layout are optimized. The layout synthesis strategically replaces the most "critical" building block with a better option. To maximize the first unwanted natural frequency the replacement strategy depends the strain energy distribution of the accompanying mode shape. The algorithm is tested for the design of a 1-DOF flexure hinge. The obtained final layout agrees with results known from literature.
Original language | English |
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Title of host publication | Proceedings of the ASME 2020 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference IDETC/CIE2020 |
Publisher | ASME Digital Collection |
Number of pages | 10 |
ISBN (Electronic) | 9780791883914 |
DOIs | |
Publication status | Published - 3 Nov 2020 |
Event | ASME International Design Engineering Technical Conferences & Computer and Information in Engineering, ASME IDETC CIE 2020 - Virtual Conference, Online, United States Duration: 17 Aug 2020 → 19 Aug 2020 Conference number: 40th https://event.asme.org/IDETC-CIE-2020 https://event.asme.org/IDETC-CIE |
Conference
Conference | ASME International Design Engineering Technical Conferences & Computer and Information in Engineering, ASME IDETC CIE 2020 |
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Abbreviated title | ASME IDETC CIE 2020 |
Country/Territory | United States |
City | Online |
Period | 17/08/20 → 19/08/20 |
Internet address |
Keywords
- 22/2 OA procedure