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Research Papers

Wear Analysis of Two Revolute Joints With Clearance in Multibody Systems

[+] Author and Article Information
Pei Li

Key Laboratory of Education,
Ministry for Modern Design
and Rotor-Bearing System,
Xi'an Jiaotong University,
Xi'an 710049, China
e-mail: paddylee1991@gmail.com

Wei Chen

Key Laboratory of Education,
Ministry for Modern Design
and Rotor-Bearing System,
Xi'an Jiaotong University,
Xi'an 710049, China
e-mail: chenw@mail.xjtu.edu.cn

Desheng Li, Rufei Yu, Wenjing Zhang

Key Laboratory of Education,
Ministry for Modern Design
and Rotor-Bearing System,
Xi'an Jiaotong University,
Xi'an 710049, China

1Corresponding author.

Contributed by the Design Engineering Division of ASME for publication in the JOURNAL OF COMPUTATIONAL AND NONLINEAR DYNAMICS. Manuscript received November 2, 2014; final manuscript received May 2, 2015; published online June 30, 2015. Assoc. Editor: José L. Escalona.

J. Comput. Nonlinear Dynam 11(1), 011009 (Jan 01, 2016) (7 pages) Paper No: CND-14-1279; doi: 10.1115/1.4030539 History: Received November 02, 2014; Revised May 02, 2015; Online June 30, 2015

The wear of multiple joints with clearance is one of the main impacts on the life of mechanical systems while very limited study has been done on this subject. To be different with many existed researches focused on the dynamic analysis of multibody systems with multiple clearance joints, the wear of two revolute joints with clearance in multibody systems is analyzed in this paper by coupling dynamics with tribology. Based on a planar slider crank mechanism with two clearance joints, it is observed that the clearance sizes nonlinearly influence the wear depths of the two joints with clearance. Meanwhile, an appropriate relationship between the two joints' clearance sizes can significantly decrease the wear of the joints, which would greatly improve the system life. Both the independent and interactive influences of the two joints with clearances on the wear are investigated in this paper. The relation equations of the two clearances obtained in this work will significantly decrease the wear of the two clearance joints.

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References

Figures

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Fig. 1

Classical revolute joint with clearance

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Fig. 2

Slider crank mechanism with two clearance joints

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Fig. 3

Pin center orbits of C1 with different clearance sizes of C1: (a) c1 = 0.1 mm, (b) c1 = 0.3 mm, and (c) c1 = 0.5 mm

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Fig. 4

Pin center orbits of C2 with different clearance sizes of C1: (a) c1 = 0.1 mm, (b) c1 = 0.3 mm, and (c) c1 = 0.5 mm

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Fig. 5

Wear depth of C1 and C2 with different clearance sizes of C1: (a) Wear depth of C1 and (b) wear depth of C2

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Fig. 6

Pin center orbits of C1 with different clearance sizes of C2: (a) c2 = 0.1 mm, (b) c2 = 0.3 mm, and (c) c2 = 0.5 mm

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Fig. 7

Pin center orbits of C2 with different clearance sizes of C2: (a) c2 = 0.1 mm, (b) c2 = 0.3 mm, and (c) c2 = 0.5 mm

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Fig. 8

Wear depth of C1 and C2 with different clearance sizes of C2: (a) Wear depth of C1 and (b) wear depth of C2

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Fig. 9

Wear volume of C1 and C2 with different clearance sizes of C1 and C2: (a) Wear volume of C1 and (b) wear volume of C2

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Fig. 10

Equivalent wear volume with different clearance sizes of C1 and C2

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