Difference analysis of non-contact planar scroll spring with the same stiffness

Abstract

In this paper, a set of mathematical models of non-contact planar scroll springs with the same stiffness are established. Based on ABAQUS simulation analysis software, the finite element modeling was carried out, and the modal, torsional stiffness, maximum stress and stress distribution of each plane scroll spring were analyzed. At the same time, the results of finite element analysis (torsional stiffness and maximum stress) are compared with the results of empirical formula, and some experimental data are introduced. The results show that the results of the two methods are basically the same, but there are still some differences. Although the empirical formula is more simple and general, the finite element simulation analysis still has a certain reference significance in the selection and design of spring, especially for the plane scroll spring with high precision mechanical properties.