機械系統(tǒng)非線性動力學(xué)特性及實驗研究ei-全文預(yù)覽
【正文】 三、第一責(zé)任者單位：Department of Mechanical Engineering, University of Glasgow, G12 8, United Kingdom 四、文獻來源: Applied Mechanics Reviews, v 56, n 5, p 455491, September 2003 第三篇文獻： 一、篇名：Nonlinear dynamics of a microelectromechanical system with timevarying capacitors 二、第一責(zé)任者：Luo, Albert . 三、第一責(zé)任者單位：(Dept. of Mechanical/Industrial Eng., Southern Illinois Univ. Edwardsville, Edwardsville, IL 620261805, United States 四、文獻來源: Journal of Vibration and Acoustics, Transactions of the ASME, v 126, n 1, p 7783, January 2004 。 Publisher: American Society of Mechanical Engineers Author affiliations: 1 Dept. of Mechanical/Industrial Eng., Southern Illinois Univ. Edwardsville, Edwardsville, IL 620261805, United States 2 BEI Technologies Inc., 2700 Systron Drive, Concord, CA 94518, United States Abstract: The natural frequency and responses of a microelectromechanical system (MEMS) with timevarying capacitors are determined under an equivalent direct current (DC) voltage. Under alternating current (AC) voltages, the resonant condition and the corresponding resonant motion possessing a wide energy band for such a system are investigated because the motion with the wide energy band is very easily sensed. For a given voltage strength, the AC frequency band is obtained for chaotic resonant motions in the specific resonant layer. The numerical and analytical predictions of such a motion are in a acceptable agreement, and the dynamic model provides the range prediction of the alternating current and voltage on the capacitor agreeing with experimental measurements. The lowerorder resonant motion has a higher energy than the higherorder resonant motions, which indicates that the lowerorder resonant motion can be easily sensed. Although this model is developed from a specified MEMS, the analysis and results can be applied to other dynamic systems. 16
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