基于功率载荷的农用拖拉机变速箱优化设计

Optimal Design of Agricultural Tractor Gearbox Based on Power Load

基于功率载荷概念并融合时频分析方法,进行农用拖拉机变速箱优化设计;通过对变速箱应力幅值和功率载荷的分析,研究农用拖拉机重要零部件的疲劳寿命;在理论计算和仿真分析基础上,确定变速箱的受力危险点,与时频分析相融合对变速箱壳体的疲劳寿命进行预测。分析结果表明:基于功率载荷进行变速箱优化设计能够为农业机械关键零部件的疲劳寿命预测提供有效理论支持。

Based on the concept of power load and time-frequency analysis method,this paper carries out the optimal design of agricultural tractor gearbox.Through the analysis of gearbox stress amplitude and power load,this paper studies the fatigue life of important parts of agricultural tractor,and determines the stress dangerous point of gearbox on the basis of theoretical calculation and simulation analysis,Combined with time-frequency analysis,the fatigue life of gearbox is predicted.The results show that the optimal design of Gearbox Based on power load can provide effective theoretical support for the fatigue life prediction of key parts of agricultural machinery.