Abstract
Surface appearance of involute gear is the basis to research the dynamic performance of gear transmission system. The Delaunay triangulation method of layered local dynamic is proposed to construct the precise tooth surface of the known tooth surface appearances. The concave and convex region of the real tooth surface was extracted by isosurface subdivision. In order to smooth the surface, the energy method and the improved fractal method with minimum included angle are used to smooth the curve. On the basis of the loaded tooth contact analysis of involute gears, the loaded tooth contact analysis model of digital error tooth surface is constructed. The tooth surface appearances of fuzzy tooth surface were predicted by extracting contact patterns under various working parameters on the experimental platform. Through the analysis on actual examples, it is concluded that the method proposed in this manuscript can accurately predict the tooth surface morphology of fuzzy tooth surface and lay the foundation for the dynamic performance optimization of gear system with fuzzy tooth surface.
Highlights
With the development of the industrial technology, high performance gears can be used in the fields of aviation and aerospace, industrial robot, wind power generation and intelligent manufacturing, needing to meet the requirements of high speed transmission, high load carrying capacity, and high reliability, produce low noise, and have high reliability.erefore, the dynamic performance of gear transmission system immediate impacts the breadth and depth of application of gear driving device.e existing achievements in scientific research mainly focus on the study of the dynamic performance of the gear transmission system, with the known basic parameters and the gear surface appearances [1–8]
E existing achievements in scientific research mainly focus on the study of the dynamic performance of the gear transmission system, with the known basic parameters and the gear surface appearances [1–8]
The unknown tooth surface topography of the gear in gear transmission system is defined as fuzzy tooth surface (FTS)
Summary
With the development of the industrial technology, high performance gears can be used in the fields of aviation and aerospace, industrial robot, wind power generation and intelligent manufacturing, needing to meet the requirements of high speed transmission, high load carrying capacity, and high reliability, produce low noise, and have high reliability. By constructing the accurate tooth surface of known gear, establishing the model for loaded tooth contact analysis of the digital error tooth surface and the tooth surface appearances of FTS is predicted according to the contact pattern obtained in the experiment, which lays the foundation for the dynamic performance optimization of gear system. Aiming at the problem of loaded contact analysis of fuzzy tooth surface, a Delaunay triangulation method of layered local dynamic (DTMLLD) is proposed to build an accurate model of known tooth surface.
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