Research on vibration suppression mode of sorting arm structure in high-frequency reciprocating motion

Xuchu Jiang1 , Bin Li2 , Xinyong Mao3 , Yili Peng4 , Wei Jiang5 , Songping He6

1, 5School of Statistics and Mathematics, Zhongnan University of Economics and Law, Wuhan, Hubei, China

2, 3, 4, 6School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, China

6Corresponding author

Journal of Vibroengineering, Vol. 21, Issue 6, 2019, p. 1694-1709.
Received 8 January 2018; received in revised form 4 June 2018; accepted 30 July 2018; published 30 September 2019

Copyright © 2019 Xuchu Jiang, et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Creative Commons License

The sorting arm structure is under the inertia impact of high frequency reciprocating motion. The vibration characteristics are related to the operation process so that the precision of the chip sorting is uncertain. Thus, the accuracy of chips and efficiency of LED sorting machine are reduced. In the paper, the relationship between the vibration of the sorting arm and the positioning error of the chip has been studied. Besides, the correlation between the sorting arm structure’s vibration and the working precision of the separator are pointed out. The operation control is optimized based on the dynamics of the sorting arm and the operation parameters are optimized based on time sequence setting, in order to shorten the vibration attenuation time of the sorting arm for suppress vibration and provide efficiency. The incentives, which are introduced by variable structure and by the operation, can be effectively controlled. The array accuracy of chips and working efficiency of chip sorting machine are improved.

Graphical Abstract

  • The correlation between the sorting arm structure’s vibration and the working precision of the separator were clarified.
  • The operation control was optimized, based on the dynamics of the sorting arm. The operation parameters were optimized based on time sequence setting.
  • The incentives were introduced by the variable structure and by the operation, which were effectively controlled.
  • The chip array accuracy and the working efficiency of the chip sorting machine were improved.

Keywords: operation control, sorting precision, chip arrangement, parameter optimization.


The research is supported by the National Natural Science Foundation of China under Grant No. 51775212 and 51505084. The authors are grateful to other participants of the project for their cooperation.


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