基于ANSYS/LS-DYNA的转炉倾动装置齿轮动态啮合分析  

Dynamic Meshing Analysis of Gear for Converter Tilting Mechanism based on ANSYS/LS-DYNA

作　　者：任学平[1] 孙百祎 杨松涛[1] 

机构地区：[1]内蒙古科技大学机械工程学院,内蒙古包头014010

出　　处：《机械传动》2014年第3期147-150,共4页Journal of Mechanical Transmission

基　　金：内蒙古自治区自然科学基金项目(2012MS0717)

摘　　要：实际设备检查时利用EZ-ANALYST软件采集了某转炉倾动装置4台一次减速机的振动信号,发现其中一台减速机出现了明显的滞后动作现象并由此产生了轮齿之间的碰撞;为研究碰撞情况下的冲击载荷对轮齿强度的影响,结合接触动力学相关理论,利用有限元软件ANSYS/LS-DYNA模拟了减速器启动和制动阶段的两种工况,通过有限元分析轮齿所受最大应力位于齿根部位与实际应力集中部位相吻合。通过对比启、制动阶段分析结果可见启动阶段齿侧间隙较大,产生的冲击载荷较大。因此在实际生产过程中应避免一次减速机的异步驱动。When detecting the equipment,the vibration signal of four reducers is gathered by using EZ-- ANALYST, it is found that one reducer action is hysteretic leading to the collision between two gear teeth. To investigate the influence of impact lead on gear strength under the collision situation, combining the theory of contact dynamics and using the ANSYS/LS--DYNA the working conditions of reducer pulse--on and braking stage are simulated. Through the finite element analysis, the position of maximum equivalent stress are con- sistent with the actual concentrated place. Through comparing the analysis results of pulse--on and braking stage, show that the impact load in the pulse--on stage is bigger owing to the larger backlash, therefore, the re- ducer asynchronous drive in the actual production process must be avoided.

关 键 词：倾动机构 齿轮 滞后动作 ANSYS LS--DYNA 齿侧间隙 冲击载荷 

分 类 号：TH132.41[机械工程—机械制造及自动化]