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| Structural topology optimization of planar piezoelectric actuators with repetitive assembling components |
| Received:November 09, 2009 Revised:May 06, 2010 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201102007 |
| KeyWord:Repetitive assembling piezoelectric actuator topology optimization |
| Author | Institution |
| 王晓明 |
大连理工大学 工业装备结构分析国家重点实验室,大连 |
| 亢战 |
大连理工大学 工业装备结构分析国家重点实验室,大连 |
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| Abstract: |
| Piezoelectric actuators with large aspect ratio are suitable for delivering large displacements. Assembling this type of actuators by means of repetitive components has the advantage of low manufacturing cost. This paper presents a mathematical model for topology optimization of planar piezoelectric actuators with repetitive components. The design objective is to maximum the work exported at the displacement output port. Constraints with regard to the control energy consumption and the material volume are imposed to the optimization problem. The distributions of the actuation voltage as well as the topologies of both host layers and piezoelectric layers are to be optimized. Numerical techniques for sensitivity analysis of structure response are presented and the proposed optimization problem is solved with a gradient-based mathematical programming approach. Illustrative examples are given to demonstrate the validity and applicability of the proposed approach. |