National Changhua University of Education Institutional Repository : Item 987654321/13772
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题名: Application of hybrid differential transformation / finite difference method to nonlinear analysis of micro fixed-fixed beam
作者: Chen, Cha'o-Kuang;Lai, Hsin-Yi;Liu, Chin-Chia
贡献者: 工業教育與技術學系
日期: 2009
上传时间: 2012-08-27T10:53:28Z
出版者: Springer-Verlag
摘要: Analyzing the dynamic response of electrostatic devices is problematic due to the complexity of the interactions between the electrostatic coupling effect, the fringing field effect and the nonlinear electrostatic force. To resolve this problem, this study presents an efficient computational scheme in which the nonlinear governing equation of the electrostatic device is obtained in accordance with Hamilton’s principle and is then solved using a hybrid differential transformation/finite difference method. The feasibility of the proposed approach is demonstrated by modeling the dynamic responses of two micro fixedfixed beams with lengths of 250 and 350 lm, respectively. The numerical results show that the pull-in voltage reduces as the beam length increases due to a loss in the structural rigidity. Furthermore, it is shown that the present results for the pull-in voltage deviate by no more than 0.75% from those derived in the literature using a variety of different schemes. Overall, the results presented in this study demonstrate that the proposed hybrid method represents a computationally efficient and precise means of obtaining detailed insights into the nonlinear dynamic behavior of micro fixed-fixed beams and similar micro-electromechanical systems (MEMS)-based devices.
關聯: Microsystem Technologies, 15: 813-820
显示于类别:[工業教育與技術學系] 期刊論文

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