微电容加速度计多目标结构拓扑优化设计  

Multi-objective structure topology optimization for micro-capacitive accelerometer

作　　者：曾昭贤[1] 谢勇君[2] 左孔天[1] 向湘林[1] 

机构地区：[1]广西科技大学(筹)汽车与交通学院,广西柳州545006 [2]暨南大学电气信息学院,广东珠海519070

出　　处：《广西工学院学报》2012年第4期68-73,共6页Journal of Guangxi University of Technology

基　　金：广东省自然科学基金博士研究启动项目(9451063201002281)资助

摘　　要：针对微电容加速度计一阶固有频率和横向抗干扰能力进行多目标拓扑优化设计,建立了微电容加速度计弹性梁和质量块的一阶固有频率最大和横向抗干扰能力最强的多目标结构拓扑优化模型,以体积比作为约束条件,采用优化准则算法进行迭代求解,获得在不同权值下的微加速度计弹性梁和质量块的多种优化的结构拓扑形式,计算结果表明,通过多目标结构拓扑优化设计可以有效地提高微电容加速度计的综合性能.A multi-objective topology optimization design has been conducted ior micro-capacitive accelerometer of first-order natural frequency and lateral anti-jamming capability. And the micro-capacitive accelerometer elastic beam and mass-block of the first-order natural frequency maximum and lateral anti-jamming capability strongest multi-objective topology optimization model has been built. With volume ratio as the constraint condition, the optimization algorithm for iterative solution is used to obtain multiple optimization of structural topology forms in different weights of the micro accelerometer elastic beam and mass-block. The calculation results show that the multi-objective topology optimization can effectively improve the comprehensive properties of micro-capacitive accelerometer.

关 键 词：多目标拓扑优化 密度法 固有频率 横向抗干扰能力 

分 类 号：TH137.8[机械工程—机械制造及自动化]