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| Finite element analysis of output shaft of liquid viscosity soft start-up equipment |
| HAO Zhi-yong,LIU Wei,YAN Chuang,YUAN Shuai |
| School of Mechanical Engineering, Liaoning Technical University, Fuxin 123000, China |
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Abstract Aiming at the working characteristics of liquid viscosity soft start-up equipment, asking for more larger range of variation of driving torque and output speed of the output shaft, the deformation of output shaft should be located in smaller range, the performance of the output shaft have a major impact to liquid viscosity soft start-up equipment work,the structure of the output shaft needs further analysis. Through establishing the pro/E 3D model of liquid soft viscosity start-up output shaft, using the finite element software ANSYS Workbench to conduct finite element analysis on the output shaft of liquid viscosity start-up equipment, determining output shaft deformation and stress conditions, calculating the modal and fatigue damage of output shaft, simulation results show that the largest damage part of the output shaft is in the coarse side of the shaft keyway, and some improvements are made, providing the reference for structure design and fatigue life estimation of output shaft of liquid viscosity soft start-up equipment.
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Published: 15 April 2012
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液体黏性软启动装置输出轴的有限元分析
针对液体黏性软启动装置的工作特点,要求输出轴传动力矩和输出转速变化范围较大,轴变形应该保持在较小范围内,输出轴的性能对液体黏性软启动装置正常工作有重要影响,需要对输出轴的结构作进一步分析.通过建立液体黏性软启动装置输出轴的Pro/E三维模型,采用有限元软件ANSYS Workbench对启动装置的输出轴进行有限元分析,确定输出轴的变形和应力状况,计算输出轴的模态和疲劳损伤.仿真结果表明：输出轴损伤最大部位位于较粗轴端键槽一侧.提出了一些改进措施,为液体黏性软启动装置输出轴的结构设计和疲劳寿命估算提供参考依据.
关键词：
软启动,
输出轴,
有限元法,
疲劳损伤
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