Considering the nonlinear mechanical-magnetic coupling effects, an accurate mathematical model was established for analyzing large stroke penta-stable mechanism possessing multistability transforming capability, with which the mechanism can be switched from pentastability to quadristability. The multistability with any number of stable states can be achieved by integrating spatially arranged magnets and large deformation beams as the fundamental energy storage elements to maintain stable states. By theoretically analyzing the influence of the large mechanical deformation on the magnetic field distribution and system energy, the nonlinear force–displacement characteristics of the multistable mechanism were obtained numerically, which were in good agreement with those obtained by experiments and finite element simulation. Then, an energy-based design criterion for magnetic-mechanical multistable mechanisms was proposed according to the stability theory and energy variation principle. In addition, the multistable transformability was theoretically analyzed, which can transform the proposed mechanism from penta-stability to quadristability by only changing the magnetization direction of moving magnets without varying the structure parameters.
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August 2014
Research-Article
Mechanical-Magnetic Coupling Analysis of a Novel Large Stroke Penta-Stable Mechanism Possessing Multistability Transforming Capability
Jian Zhao,
Jian Zhao
1
State Key Laboratory of Structural Analysis
for Industrial Equipment,
e-mail: zhaojian0403@163.com
for Industrial Equipment,
Dalian University of Technology
,Dalian 116024
, China
e-mail: zhaojian0403@163.com
1Corresponding author.
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Yongcun Zhang,
Yongcun Zhang
State Key Laboratory of Structural Analysis
for Industrial Equipment,
e-mail: yczhang@dlut.edu.cn
for Industrial Equipment,
Dalian University of Technology
,Dalian 116024
, China
e-mail: yczhang@dlut.edu.cn
Search for other works by this author on:
Yu Huang,
Yu Huang
State Key Laboratory of Structural Analysis
for Industrial Equipment,
e-mail: huagnyu130@aliyun.com
for Industrial Equipment,
Dalian University of Technology
,Dalian 116024
, China
e-mail: huagnyu130@aliyun.com
Search for other works by this author on:
Shutian Liu,
Shutian Liu
State Key Laboratory of Structural Analysis
for Industrial Equipment,
e-mail: stliu@dlut.edu.cn
for Industrial Equipment,
Dalian University of Technology
,Dalian 116024
, China
e-mail: stliu@dlut.edu.cn
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Guoxi Chen,
Guoxi Chen
State Key Laboratory of Structural Analysis
for Industrial Equipment,
for Industrial Equipment,
Dalian University of Technology
,Dalian 116024
, China
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Renjing Gao,
Renjing Gao
State Key Laboratory of Structural Analysis
for Industrial Equipment,
for Industrial Equipment,
Dalian University of Technology
,Dalian 116024
, China
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Yintang Yang
Yintang Yang
School of Microelectronics,
e-mail: ytyang@xidian.edu.cn
Xidian University
,Xi'an, Shaanxi 710071
, China
e-mail: ytyang@xidian.edu.cn
Search for other works by this author on:
Jian Zhao
State Key Laboratory of Structural Analysis
for Industrial Equipment,
e-mail: zhaojian0403@163.com
for Industrial Equipment,
Dalian University of Technology
,Dalian 116024
, China
e-mail: zhaojian0403@163.com
Yongcun Zhang
State Key Laboratory of Structural Analysis
for Industrial Equipment,
e-mail: yczhang@dlut.edu.cn
for Industrial Equipment,
Dalian University of Technology
,Dalian 116024
, China
e-mail: yczhang@dlut.edu.cn
Yu Huang
State Key Laboratory of Structural Analysis
for Industrial Equipment,
e-mail: huagnyu130@aliyun.com
for Industrial Equipment,
Dalian University of Technology
,Dalian 116024
, China
e-mail: huagnyu130@aliyun.com
Shutian Liu
State Key Laboratory of Structural Analysis
for Industrial Equipment,
e-mail: stliu@dlut.edu.cn
for Industrial Equipment,
Dalian University of Technology
,Dalian 116024
, China
e-mail: stliu@dlut.edu.cn
Guoxi Chen
State Key Laboratory of Structural Analysis
for Industrial Equipment,
for Industrial Equipment,
Dalian University of Technology
,Dalian 116024
, China
Renjing Gao
State Key Laboratory of Structural Analysis
for Industrial Equipment,
for Industrial Equipment,
Dalian University of Technology
,Dalian 116024
, China
Yintang Yang
School of Microelectronics,
e-mail: ytyang@xidian.edu.cn
Xidian University
,Xi'an, Shaanxi 710071
, China
e-mail: ytyang@xidian.edu.cn
1Corresponding author.
Contributed by the Mechanisms and Robotics Committee of ASME for publication in the JOURNAL OF MECHANISMS AND ROBOTICS. Manuscript received July 13, 2013; final manuscript received December 30, 2013; published online April 3, 2014. Assoc. Editor: Anupam Saxena.
J. Mechanisms Robotics. Aug 2014, 6(3): 031004 (9 pages)
Published Online: April 3, 2014
Article history
Received:
July 13, 2013
Revision Received:
December 30, 2013
Citation
Zhao, J., Zhang, Y., Huang, Y., Liu, S., Chen, G., Gao, R., and Yang, Y. (April 3, 2014). "Mechanical-Magnetic Coupling Analysis of a Novel Large Stroke Penta-Stable Mechanism Possessing Multistability Transforming Capability." ASME. J. Mechanisms Robotics. August 2014; 6(3): 031004. https://doi.org/10.1115/1.4026630
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