Paper Title:

Variable-Grain Optimization Design of High-Speed Transmission Helical Gear

Periodical Advanced Materials Research (Volume 346)
Main Theme Sustainable Construction Materials and Computer Engineering
Edited by Wensong Hu
Pages 179-183
DOI 10.4028/www.scientific.net/AMR.346.179
Citation Fu Qiang Zhao et al., 2011, Advanced Materials Research, 346, 179
Online since September, 2011
Authors Fu Qiang Zhao, Tie Wang, Rui Liang Zhang, Yu Juan Li, Jun Shen
Keywords Gear, Multi Objective Optimization, Noise, Transmission, Variable-Grain Strategy
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Abstract

A variable-grain strategy is proposed to solve the complicated problem of optimization design on high-speed transmission helical gears with multiple objectives and restrictions. Based on the theory of gear meshing noise and the superiority criteria, a multi-objective evaluation index system is brought forward which gives consideration to the increase of the contact ratio and the decrease of the noise generated by the slide ratio of the tooth flank meshing and the mutation of friction torque, and then the variable-grain multi-objective optimization models of high-speed helical gears are established. The coarse-grained model is utilized in the early design to efficiently determine the direction to the optimal solution. Then the grain is refined and the fine-grained model can be utilized to acquire the optimal result.