首页 | 本学科首页   官方微博 | 高级检索  
     检索      

Computation speedup in the dynamic simulation of MEMS by macromodels
作者姓名:LIN Wuzhong  LIANG Yanchun  LEE Kwok Hong  LIM Siak Piang  LEE Heow Pueh
作者单位:Institute of High Performance Computing, Singapore 117528,Institute of High Performance Computing, Singapore 117528;College of Computer Science and Technology, Jilin University,Changchun 130012, China,Department of Mechanical Engineering, National University of Singapore, Singapore 119260,Department of Mechanical Engineering, National University of Singapore, Singapore 119260,Institute of High Performance Computing, Singapore 117528
摘    要:A doubly clamped microbeam actuated by electrostatic force with squeezed gas film damping is a well-known and standard micro-device in microelectromechanical system (MEMS) for many researchers to demonstrate how reduced-order dynamic macromodel is an effective way to faithfully capture the device behaviors. However it still takes time to directly recompute the time-dependant nonlinear terms in macromodels which are generated by a proper orthogonal decomposition (POD) method with Galerkin procedure at every time step during the macromodel simulation. This paper proposes two methods for speeding up the computation of macromodel simulations. In the first method, the computation speedup is achieved based on the concept of precomputation upon the basis functions are available. In the second method, cubic splines approximation is used to interpolate the basis functions and their first and second derivatives, and spatial integration is performed by application of the Gaussian quadrature. Numerical results show both methods could enhance the efficiency of the macromodel simulation compared with our previous computation results

关 键 词:MEMS    macromodels    model  order  reduction    proper  orthogonal  decomposition

Computation speedup in the dynamic simulation of MEMS by macromodels
LIN Wuzhong,LIANG Yanchun,LEE Kwok Hong,LIM Siak Piang,LEE Heow Pueh.Computation speedup in the dynamic simulation of MEMS by macromodels[J].Progress in Natural Science,2003,13(3):219-227.
Authors:LIN Wuzhong  LIANG Yanchun  LEE Kwok Hong  LIM Siak Piang  LEE Heow Pueh
Institution:1. Institute of High Performance Computing, Singapore 117528
2. Institute of High Performance Computing, Singapore 117528;College of Computer Science and Technology, Jilin University,Changchun 130012, China
3. Department of Mechanical Engineering, National University of Singapore, Singapore 119260
Abstract:A doubly clamped microbeam actuated by electrostatic force with squeezed gas film damping is a well-known and standard micro-device in microelectromechanical system (MEMS) for many researchers to demonstrate how reduced-order dynamic macromodel is an effective way to faithfully capture the device behaviors. However it still takes time to directly recompute the time-dependant nonlinear terms in macromodels which are generated by a proper orthogonal decomposition (POD) method with Galerkin procedure at every time step during the macromodel simulation. This paper proposes two methods for speeding up the computation of macromodel simulations. In the first method, the computation speedup is achieved based on the concept of precomputation upon the basis functions are available. In the second method, cubic splines approximation is used to interpolate the basis functions and their first and second derivatives, and spatial integration is performed by application of the Gaussian quadrature. Numerical results show both methods could enhance the efficiency of the macromodel simulation compared with our previous computation results
Keywords:MEMS  macromodels  model order reduction  proper orthogonal decomposition
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《自然科学进展(英文版)》浏览原始摘要信息
点击此处可从《自然科学进展(英文版)》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号