关键词: 膜片弹簧, 残余应力, 材料模型, 载荷, 变形

Abstract:

Load deformation relations computational method of strengthened diaphragm spring(disc) was studied.First of all,load deformation relationship of the sample was tested.Then,samples of residual stress value and distribution were tested by using X-ray stress instrument.On this basis of that,the influence mechanism analysis of the shot peening and put down by force on the spring load deformation relationship was carried.The analysis discovers that the load deformation relations of diaphragm spring is associated with shot peen and put down by force.Finally,based on experimental data fitting,a correlation formula is obtained based on the Almen-Laszlo formula and the finite element method of a variety of material models for solving load deformation of diaphragm spring.

Key words: diaphragm spring, residual stress, material model, load, deformation