Abstract
Compliant mechanisms produce motion through the elastic deformation of their constituent flexures. Leaf flexures are commonly used to guide linear motions as they are relatively compliant in the motion direction and stiff in other directions. In precision compliant mechanisms, the range of motion is commonly limited by their actuators' maximum input force. Increasing their workspace requires reducing stiffness in the motion direction. This paper investigates the design of linear flexure guides, using computational topology optimization, to maximize their ratio of in-plane to out-of-plane stiffness. A volume distribution problem is posed and reduced to a final binary solution using the solid isotropic material with penalization (SIMP) method. The resulting stiffness ratio optimized structures resemble common engineering trusses in their basic form and offer performance 1.5 to 4 times greater than standard leaf structures, with a reduced mass. Hence the workspace of a linear compliant mechanism can be increased without a significant deterioration in the mechanism's bandwidth or out-of-plane stiffness.
Original language | English |
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Title of host publication | AIM 2018 - IEEE/ASME International Conference on Advanced Intelligent Mechatronics |
Publisher | IEEE, Institute of Electrical and Electronics Engineers |
Pages | 407-412 |
Number of pages | 6 |
ISBN (Print) | 9781538618547 |
DOIs | |
Publication status | Published - 30 Aug 2018 |
Event | IEEE/ASME International Conference on Advanced Intelligent Mechatronics 2018 - Auckland, New Zealand Duration: 9 Jul 2018 → 12 Jul 2018 Conference number: 17th http://aim2018.org/ (Conference website) https://ieeexplore.ieee.org/xpl/conhome/8425581/proceeding (Proceedings) |
Publication series
Name | IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM |
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Volume | 2018-July |
Conference
Conference | IEEE/ASME International Conference on Advanced Intelligent Mechatronics 2018 |
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Abbreviated title | AIM 2018 |
Country/Territory | New Zealand |
City | Auckland |
Period | 9/07/18 → 12/07/18 |
Internet address |
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