哈尔滨工程大学学报2018，Vol.39Issue(3)：561-568,8.DOI:10.11990/jheu.201610036
齿轮箱全耦合系统动力学建模与箱体影响分析
Dynamical modeling for a gearbox full-coupling system and influence analysis of housing
摘要
Abstract
In this study,the dynamic parameters of a gearbox are separately obtained using the direct and static sub -structure methods to acquire the accurate dynamic response of a gear transmission system.Furthermore,the dynam-ic model on the gearbox(i.e., gear-shaft-bearing-box full-coupling dynamic model)is established through the general finite element method.The research subject chosen herein is a single-stage straight-tooth reducer.The differences in the dynamic characteristics of the system after the housing coupling obtained by the direct and static sub-structure methods are compared.The natural frequency, dynamic engaging force, and bearing reaction of the system before and after the housing coupling are then calculated.Moreover,the effect of the housing flexibility on the dynamic characteristic of the gear transmission system is analyzed.The results of this study show that the speed of the static sub-structure method is faster than that of the direct method when a multi-DOF system is calculated.In addition,the natural frequency of the system decreases because of the introduction of the coupled housing flexibil -ity.Under a full rotation speed,the effect of the gearbox flexibility on the bearing reaction is larger than that on the engaging force of the gear.关键词
全耦合动力学模型/箱体柔性/广义有限元/静态子结构法/直接法Key words
full-coupling dynamic model/housing flexibility/generalized FEM/static sub-structure method/directmethod分类
机械制造引用本文复制引用
刘岚,赵晨晴,任亚峰,贺朝霞,吴立言..齿轮箱全耦合系统动力学建模与箱体影响分析[J].哈尔滨工程大学学报,2018,39(3):561-568,8.基金项目
国家自然科学基金重点项目(51535009) （51535009）
高等学校学科创新引智计划项目(B13044) （B13044）
中央高校基本科研业务费专项资金(310825161004). （310825161004）
