基于ABAQUS的同刚度非接触式平面涡卷弹簧性能分析

Performance Analysis of non-Contact Planar Scroll Spring with the Same Stiffness Based on ABAQUS

根据经验公式,在同截面情况下非接触式平面涡卷弹簧的扭转刚度仅与其有效长度有关。本研究建立了一组同刚度非接触式平面涡卷弹簧的数学模型,基于ABAQUS仿真分析软件对各平面涡卷弹簧进行了有限元建模和分析;同时,将各平面弹簧的扭转刚度和工作应力的仿真分析结果与经验公式计算结果进行了对比,并在扭转刚度对比中引入了试验数据。结果表明,同刚度条件下,随着圈数的增大、节距的变小,基频明显变大、最大工作应力小幅下降、应力沿长度方向的波动变小、分布更加均匀。对比扭转刚度和最大工作应力仿真结果和经验公式计算结果,两方法之间存在一定的差异。

According to the empirical formula,the torsion stiffness of non-contact planar scroll spring is only related to its effective length under the same cross-section.In this paper,a set of mathematical models of non-contact planar scroll spring with the same stiffness are established,and the finite element modeling and analysis of each planar scroll spring is carried out based on the ABAQUS software.At the same time,the simulation results of the torsion stiffness and working stress of each spring are compared with the results of the empirical formula,and the test data are introduced into the comparison.The results show that with the same stiffness,the pitch becomes smaller,the fundamental frequency becomes larger,the maximum working stress decreases slightly,and stress fluctuation along the length direction becomes smaller and stress distribution becomes more uniform.There are some differences between the simulation results of torsional stiffness and maximum working stress and the results of empirical formula.