Effects of wear and member flexibility on the dynamic performance of a planar five-bar mechanism with joint-clearance are investigated. The equation of motion of the mechanism is derived based on the absolute nodal coordinate formulation (ANCF). In order to enhance the accuracy of the contact force, the slope of the load–displacement curve of the cylindrical joint with clearance is used. The contact deformation couples the joint wear to the contact state. The contact force model of Flores and coworkers is improved, by the introduction of the stiffness coefficient. The wear depth is predicted by using the Archard's wear model. Simulations show that the multiclearance joints can generate stronger contact forces relative to single clearance joint case. This leads to more severe wear in the joint. However, the mechanism with multiple flexible links can absorb more of the energy arising from the clearance joint, and this improves the wear phenomenon.
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September 2017
Research-Article
Dynamic Analysis and Wear Prediction of Planar Five-Bar Mechanism Considering Multiflexible Links and Multiclearance Joints
Gengxiang Wang,
Gengxiang Wang
Faculty of Mechanical and
Precision Instrument Engineering,
Xi'an University of Technology,
P. O. Box 373,
Xi'an, Shaanxi 710048, China
e-mail: wanggengxiang27@163.com
Precision Instrument Engineering,
Xi'an University of Technology,
P. O. Box 373,
Xi'an, Shaanxi 710048, China
e-mail: wanggengxiang27@163.com
Search for other works by this author on:
Hongzhao Liu
Hongzhao Liu
Faculty of Mechanical and
Precision Instrument Engineering,
Xi'an University of Technology,
P. O. Box 373,
Xi'an, Shaanxi 710048, China
e-mail: liu-hongzhao@163.com
Precision Instrument Engineering,
Xi'an University of Technology,
P. O. Box 373,
Xi'an, Shaanxi 710048, China
e-mail: liu-hongzhao@163.com
Search for other works by this author on:
Gengxiang Wang
Faculty of Mechanical and
Precision Instrument Engineering,
Xi'an University of Technology,
P. O. Box 373,
Xi'an, Shaanxi 710048, China
e-mail: wanggengxiang27@163.com
Precision Instrument Engineering,
Xi'an University of Technology,
P. O. Box 373,
Xi'an, Shaanxi 710048, China
e-mail: wanggengxiang27@163.com
Hongzhao Liu
Faculty of Mechanical and
Precision Instrument Engineering,
Xi'an University of Technology,
P. O. Box 373,
Xi'an, Shaanxi 710048, China
e-mail: liu-hongzhao@163.com
Precision Instrument Engineering,
Xi'an University of Technology,
P. O. Box 373,
Xi'an, Shaanxi 710048, China
e-mail: liu-hongzhao@163.com
1Corresponding author.
Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received August 12, 2016; final manuscript received November 30, 2016; published online May 17, 2017. Assoc. Editor: Sinan Muftu.
J. Tribol. Sep 2017, 139(5): 051606 (14 pages)
Published Online: May 17, 2017
Article history
Received:
August 12, 2016
Revised:
November 30, 2016
Citation
Wang, G., and Liu, H. (May 17, 2017). "Dynamic Analysis and Wear Prediction of Planar Five-Bar Mechanism Considering Multiflexible Links and Multiclearance Joints." ASME. J. Tribol. September 2017; 139(5): 051606. https://doi.org/10.1115/1.4035478
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