Topology optimization design of micro-mass sensors for maximizing detection sensitivity

作     者：Zheqi Lin Xuansheng Wang Yiru Ren 

作者机构：School of Information Science and Technology Sun Yat-sen University Shenzhen Research Institute of Sun Yat-sen University Sun Yat-sen University College of Mechanical and Vehicle Engineering Hunan University 

基　　金：supported by the National Natural Science Foundation of China(Grants 11202246 and 11002031) the China Postdoctoral Science Foundation funded project(Grant2012M511863) 

出 版 物：《Acta Mechanica Sinica》 (力学学报（英文版）)

年 卷 期：2015年第31卷第4期

页      码：536-544页

摘      要：Micro-mass sensors have attracted increasing attention in the field of biomolecular and chemical detec- tion. It has been found that the size, shape, and geometry of the structure may affect the performance of the sensor. As a result, a topology optimization methodology is proposed in this paper for the design of micro-mass sensors. A phase- field function controlled by nodal variables and finite element shape functions is used to describe the configuration of a sen- sor in the constructed optimization problem. The design goal is to maximize the mass detection sensitivity. On the basis of these formulations, an optimization algorithm is constructed using the finite element method and the method of moving asymptotes. Numerical examples are presented to demon- strate the validity of the proposed problem formulation. The results suggest that the performance of the micro-mass sensor can be improved by using the proposed approach.

主 题 词：Topology optimization Mass detectionsensitivity Finite element method Phase-field functionMicro-mass sensor 

学科分类：080202[080202] 08[工学] 0802[工学-机械学] 

核心收录：

D　O　I：10.1007/s10409-015-0426-5

馆 藏 号：203149320...