Design and Analysis of a Microgripper Based on Smart Materials

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Smart materials are a group of solid-state materials whose geometric shape can be related to an energy input in the form of heat, light, electric field, or magnetic field. In the application of active materials to electromechanical energy conversion, electrical energy may be input to the material and the resulting deformation of the material can be used to move a load. The most common smart materials are piezoelectrics, magnetostrictive, and SMAs. In this paper, a microgripper is designed based right angle flexure hinge and driven through piezoelectric ceramic stack. The calculation formulas of amplifying ratio and natural frequency of the microgripper structure were derived. From the analysis, the maximum stress is 147Mpa that under the allowable stress of 65Mn. It can work in a stable status.The results indicate that, the microgripper all are satisfy the need of design .

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983-987

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November 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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[1] Deok-Ho Kim, Moon Gu Lee, Byungkyu Kim. A superelastic ally microgripper with embedded electromagnetic actuators and piezoelectric force sensors: a numerical and experimental study. Smart Materials and Structures, 14: 1265-1272. (2005)

DOI: 10.1088/0964-1726/14/6/019

Google Scholar

[2] D.-H. Kim, B. Kim, H. Kang. Development of a piezoelectric polymer-based sensorized microgripper for microassembly and micromanipulation. Microsystem Technologies, 10:275-280.(2004)

DOI: 10.1007/s00542-003-0330-y

Google Scholar

[3] Kristian Molhave, Ole Hansen. Electro-thermally actuated microgrippers with integrated force-feedback. Journal of Micromechanics and Microengineering, 15: 1265-1270 (2005)

DOI: 10.1088/0960-1317/15/6/018

Google Scholar

[4] F. Arai, D. Andou, Y. Nonnoda, et al. Integrated microendeffector for micromanipulation. IEEE Trans.on Mechatronics,3(1): 17-23. (1998)

DOI: 10.1109/3516.662864

Google Scholar

[5] X.H. Hung, J.H. Cai, M. Wang,et al. A piezoelectric bimorh microgripper with micro-force sensing. In: Proc. Of IEEE Int. Conf. On Information Acquisition, Hongkong, China:145-149 (2005)

Google Scholar

[6] Yuemin Yu, Jinsong Leng. Design and Dynamic Performances Simulation of a Flexible Micro-displacement Amplification Mechanism. Machine Design and Research,27(3):48-51 (2011) In Chinese

Google Scholar