scholarly journals Dynamic Response Analysis of Spur Gear System with Backlash

2021 ◽  
Vol 276 ◽  
pp. 01012
Author(s):  
Chao Li ◽  
Jigang Wang
Keyword(s):  
Dynamic Response ◽  
Dynamic Model ◽  
Transmission Error ◽  
Spur Gear ◽  
Gear System ◽  
Response Analysis ◽  
Response Curves ◽  
Nonlinear Dynamic Response ◽  
Dynamic Response Analysis ◽  
Return Difference

There are few studies on space-driven gear systems in the existing literature. In this paper, a spacedriven two-stage spur gear system is taken as the research object, and a 10 DOF dynamic model is established. A nonlinear dynamic response analysis was performed. The backlash was introduced into the dynamic model, and the time-varying stiffness was corrected to make the theoretical model closer to reality. By comparing two kinds of dynamic response curves with and without return difference, it was illustrated that the influence of return difference on dynamic transmission error in a gear system. The results obtained in this paper provide a reference and basis for subsequent research.

scholarly journals Time-varying Response Analysis of Spur Gear System

2021 ◽  
Vol 276 ◽  
pp. 01007
Author(s):  
Chao Li ◽  
Hongwei Liu
Keyword(s):  
Transmission Error ◽  
Spur Gear ◽  
High Load ◽  
Gear System ◽  
Theoretical Formula ◽  
Response Analysis ◽  
Time Varying ◽  
System A ◽  
Drive Systems ◽  
Return Difference

In this paper, a space-driven two-stage spur gear system is taken as the research object, and a 10 DOF dynamic model is established. Considering the high load characteristics of the space drive system and the time-varying stiffness and tooth clearance of the gear system, a nonlinear dynamic response analysis was performed. The characteristics of the vibration acceleration, shock and transmission error of the gear system are studied in this paper. This paper analyzes the relationship between backlash and return difference, and derives the theoretical formula between the two. The time-varying stiffness was corrected to make the theoretical model closer to reality. The research in this paper enriches the study on space drive systems and high load gear systems.

Dynamic Response Analysis of Super-Long Hybrid Jib Structure under Impact Load

2014 ◽  
Vol 900 ◽  
pp. 746-752
Author(s):  
Qing Dong ◽  
Ge Ning Xu ◽  
Ming Liang Yang ◽  
Hui Li Ren ◽  
Bin Zhang
Keyword(s):  
Dynamic Response ◽  
Dynamic Load ◽  
Nonlinear Dynamic ◽  
Impact Load ◽  
Response Analysis ◽  
Nonlinear Dynamic Response ◽  
Dynamic Response Analysis ◽  
Linear Dynamic ◽  
Linear And Nonlinear ◽  
Jib Structure

For the vibration of the super-long hybrid jib structure of hundreds of meters level elevating platform fire truck under water cannon impact load, linear dynamic response and nonlinear dynamic response methods were used to analyze the characteristics of the structure in the conditions of the large deformation of the structure, geometry, contact, material nonlinear and coupling. Through analyzing linear and nonlinear dynamic response results about peaks, steady-state values, amplitudes and dynamic load coefficients, the more scientific and practical method was given. The results provide scientific data for active vibration control and track control, and lay the foundation for achieving stable-work and pinpoint of the elevating platform. The results shows that dynamic load coefficients of each part of the super-long hybrid jib structure are not identical. The dynamic load coefficient of where lifting load is smaller and support part is larger. The larger gap between linear and nonlinear dynamic response results shows that linear dynamic response analysis should be taken as an estimation method, but nonlinear response analysis is more scientific and applied.

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