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发表时间：2022-10-10

发表刊物：计算力学学报

所属单位：机械工程学院

卷号：28

期号：2

页面范围：193-199

ISSN号：1007-4708

摘要：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

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