Modeling and topology optimization of MEMS accelerometer oriented to output performance

被引：0
作者：
Liu, Guangjun [1 ]
Jiang, Tao [1 ]
机构：
[1] College of Mechanical Engineering, Tongji University
来源：
Tongji Daxue Xuebao/Journal of Tongji University | 2012年 / 40卷 / 09期
关键词：
Micro-electro-mechanical systems (MEMS) accelerometer; Modeling; Output performance; Topology optimization;
D O I：
10.3969/j.issn.0253-374x.2012.09.015
中图分类号：
学科分类号：
摘要：
This work focuses on a capacitive micro-accelerometer fabricated by micro-electro-mechanical systems MEMS technology, and the dynamics model between the detection characteristics of output performance (detection capacitance) and the microstructure is proposed. The calculation method of output performance of the accelerometer is presented. The analysis of the dynamics and detection characteristics of the accelerometer is achieved. To increase the output performance of the accelerometer, a structural topology optimization for the accelerometer is performed. The flow and mathematical model of the topology optimization for the accelerometer is built. A numerical example is presented to show the effectiveness of the method. The topology optimization results show that the output performance and sensitivity increase by 4.92%. The coupling of vibration modes is avoided and the quality factor is kept unchanged.
引用
收藏
页码：1364 / 1368
页数：4
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