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Author:

Xu, Hai (Xu, Hai.) | Cui, Ling Li (Cui, Ling Li.) (Scholars:崔玲丽) | Shang, De Guang (Shang, De Guang.) (Scholars:尚德广) | Xu, Yong Gang (Xu, Yong Gang.)

Indexed by:

EI Scopus SCIE

Abstract:

The vibration excitation of the rolling mill mainly comes from the gearbox in the process of rolling strip, and the meshing excitation is the main excitation factor of the gearbox. And the gear backlash plays an important role in the meshing excitation. However, the backlash is inevitable in the process of designing the gear system. Therefore, it is important to select the appropriate gear backlash to reduce the vibration amplitude of the gearbox, to improve the rolling speed and the quality of the steel strip. So, in this paper, the effect of the different variation amplitudes for the time-varying gear backlash (TVGB) on the vibration characteristics of the gear system under various mesh parameters is studied. A new formulation for calculating nonlinear damping and time varying meshing stiffness is applied in this coupling model. The results show that increasing of the load torque, the damping ratio, the system parameter or decreasing the directional rotation radius variation or kinematic transmission error caused the effects of variation amplitudes for the (TVGB) on the dynamic characteristics of the gear system to decrease. Test data from a gearbox experimental table verifies the accuracy of the model. The model is shown to be capable of simulating the mutually coupled effect between the backlash and the different parameters on the gear system. So, the new coupled model can be used as guide to select the appropriate gear backlash values for the rolling mill under different operating conditions.

Keyword:

time varying mesh stiffness gear system vibration characteristics modified coupling model coupling effect time-varying mesh parameters time-varying gear backlash

Author Community:

  • [ 1 ] [Xu, Hai]Beijing Univ Technol, Coll Mech Engn & Appl Elect Technol, Beijing 100124, Peoples R China
  • [ 2 ] [Cui, Ling Li]Beijing Univ Technol, Coll Mech Engn & Appl Elect Technol, Beijing 100124, Peoples R China
  • [ 3 ] [Shang, De Guang]Beijing Univ Technol, Coll Mech Engn & Appl Elect Technol, Beijing 100124, Peoples R China
  • [ 4 ] [Xu, Yong Gang]Beijing Univ Technol, Coll Mech Engn & Appl Elect Technol, Beijing 100124, Peoples R China

Reprint Author's Address:

  • 崔玲丽

    [Cui, Ling Li]Beijing Univ Technol, Coll Mech Engn & Appl Elect Technol, Beijing 100124, Peoples R China

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Source :

JOURNAL OF VIBROENGINEERING

ISSN: 1392-8716

Year: 2017

Issue: 8

Volume: 19

Page: 5874-5891

1 . 0 0 0

JCR@2022

ESI Discipline: ENGINEERING;

ESI HC Threshold:165

Cited Count:

WoS CC Cited Count: 3

SCOPUS Cited Count: 3

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 10

Online/Total:427/10808189
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