Abstract
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.
Highlights
The gear system of a high-load space drive mechanism is taken as the research object, and a 10
A lot of research has been done on the nonlinear vibration of the gear system based on the system's nonlinear vibration theory and nonlinear factors such as time-varying meshing stiffness, error excitation, damping, and backlash of the gear meshing process. [1,2] According to the number of nonlinear factors, the specific conditions of the gear system, and the purpose of analysis, various forms of dynamic models [35] have been proposed
The nonlinear dynamic model is the simplest analytical model, which degree-of-freedom nonlinear dynamic model is established in consideration of factors such as backlash and time-varying stiffness
Summary
The gear system of a high-load space drive mechanism is taken as the research object, and a 10-For decades, the dynamics of gear systems has been receiving widespread attention. A lot of research has been done on the nonlinear vibration of the gear system based on the system's nonlinear vibration theory and nonlinear factors such as time-varying meshing stiffness, error excitation, damping, and backlash of the gear meshing process. [1,2] According to the number of nonlinear factors, the specific conditions of the gear system, and the purpose of analysis, various forms of dynamic models [35] have been proposed. The calculation formula between return difference and backlash was derived, which will provide theoretical support for subsequent research.
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