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Proceedings Paper

Application on vibration control of rotor system with a kind of SMA model
Author(s): Zhi-Wen Zhu; Hong-Li Wang; Jia Xu
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Paper Abstract

In this paper, a new kind of Shape Memory Alloy model was founded and applied in vibration control of rotor system with SMA bearing. The idea of hysteretic cycle was introduced to interpret the nonlinear hysteretic phenomenon of SMA. Subsection function was replaced by continuous function to describe the relationship among strain, stress and temperature of SMA. Constant parameters of SMA model were substituted by parameters varied with strain and stress to adapt the change of strain-stress curve in the course of loading and unloading. Arctangent function was introduced to describe the varying course of SMA stiffness with temperature. Based on above, a new kind of SMA strain-stress-temperature model was set up, and the stability and the bifurcation characteristic of rotor system with SMA bearing was analyzed. The new SMA model broadens the region of controlling temperature, admits the existence of control error, and is easy to be analyzed in theory, which can brings many advantages to vibration control.

Paper Details

Date Published: 9 January 2008
PDF: 6 pages
Proc. SPIE 6794, ICMIT 2007: Mechatronics, MEMS, and Smart Materials, 679452 (9 January 2008); doi: 10.1117/12.784126
Show Author Affiliations
Zhi-Wen Zhu, Tianjin Univ. (China)
Hong-Li Wang, Tianjin Univ. (China)
Jia Xu, Tianjin Univ. (China)


Published in SPIE Proceedings Vol. 6794:
ICMIT 2007: Mechatronics, MEMS, and Smart Materials

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