抓斗挖泥船回转齿轮制动过程动力学分析  

Dynamic Analysis of Grab Dredger′s Slewing Gear in Braking Process

作　　者：杨佩华[1] 郭兴[1] 戴艳利 

机构地区：[1]武汉理工大学物流工程学院,武汉430063

出　　处：《武汉理工大学学报》2015年第8期51-55,共5页Journal of Wuhan University of Technology

摘　　要：在工程应用中,齿轮间发生的冲击碰撞现象十分常见,经常会造成齿轮断齿、齿轮轴断裂等问题。针对该问题,以18m^3抓斗式挖泥船回转机构齿轮副为研究对象,对其制动过程进行分析,并在ANSYS/LS-DYNA软件环境下对不同齿侧间隙下的回转齿轮建立显式动力学分析模型,然后对回转齿轮的制动过程进行仿真,并利用后处理器读取模型的计算结果,得出回转大齿圈和小齿轮接触力、齿面应力和齿根弯曲应力的变化曲线,分析了齿侧间隙对齿面啮合接触力与应力的影响,为控制齿轮副制动时的冲击力与抓斗挖泥船传动系统的设计提供理论依据。It is very obvious that the impact of the gear causes the problem of the broken teeth and the fracture of the gear shaft in engineering application.For this problem,the paper takes the rotary mechanism of 18m^3 grab dredger as the research object,in terms of the analysis of its braking process,uses the ANSYS/LS-DYNA to establish rotary gear′s explicit dynamic analysis model of different backlash,and runs the simulation of braking process of rotary gear and reads the calculation results by post processor,then the results of the surface contact stressand root bending stress of rotary big ring gear and small gear tooth are obtained,analyzes the influence of backlash on the meshing contact force and stress,and provides a theoretical basis fordecreasing the impact force of the auxiliary brake gear and the design of control system of grab dredger drive.

关 键 词：回转齿轮 ANSYS/LS-DYNA 制动过程 动力学分析 

分 类 号：TH122[机械工程—机械设计及理论]