超越离合器异形片式弹簧有限元分析及结构优化  

Finite Element Analysis and Structural Optimization of Shaped Diaphragm Springs for Overrunning Clutches

作　　者：马彬隽 章勇华 陈素姣 黄宇燕 Ma Binjun;Zhang Yonghua;Chen Sujiao

机构地区：[1]柳工柳州传动件有限公司传动件研究所 [2]广西柳工机械股份有限公司

出　　处：《工程机械》2024年第5期167-176,I0019,共11页Construction Machinery and Equipment

基　　金：柳州市科技重大专项(2022AAB0102)。

摘　　要：片弹簧作为超越离合器的核心组成部分,其结构和寿命直接影响超越离合器乃至整个传动系统的可靠性。为提升超越离合器的寿命,依托有限元的方法,预测了片式弹簧不同结构下对于应力、寿命及刚度等的影响,并进行了试验验证。结果表明:提出的简化模型与仿真模拟均能较好的还原片弹簧的工作机制,通过后期试验验证可知提出的简化模型计算值与实测误差值均在10%以内,平均误差绝对值为3.2%;仿真模拟值与实测值刚度误差的绝对值基本处于10%以内,平均误差绝对值为3.8%。对片弹簧的3个重要参数进行模拟并对结果进行了拟合,最优改进参数为宽度,其次为厚度,最差为折数。研究方法和结果为超越离合器片弹簧结构优化研究提供了重要参考。As a core component of overrunning clutches,the structure and life of diaphragm springs directly affect the reliability of overrunning clutches and even of the whole drive system.To improve the life of overrunning clutches,based on finite element method,the effects of different structures of diaphragm springs on stress,life and stiffness are predicted and verified by tests.The results show that the proposed simplified model and simulation can effectively restore the working mechanism of the diaphragm spring,and through the later experimental verification,it is known that the calculated value of the proposed simplified model and the measured error value are both within 10%,with a mean error absolute value of 3.2%.The absolute value of stiffness error between the simulated value and the measured value is basically within 10%,with a mean error absolute value of 3.8%.Three important parameters of the diaphragm spring are simulated,the results are fitted,and the optimal improvement parameter is width,followed by thickness,with number of folds at the last.The research methods and results provide an important reference for the structural optimization of diaphragm springs for overrunning clutches.

关 键 词：超越离合器 片弹簧 疲劳寿命 nCode 有限元分析 

分 类 号：TH133.4[机械工程—机械制造及自动化] TB115[理学—数学]