Design and Numerical Simulation of the Disk Spring Vertical Isolation Device

Abstract

A vertical isolation device was designed and based on test requirements in this paper, which adopt disk spring with external guide sleeve. Through reasonable designing, this device can meet the requirements of stiffness and bearing capacity, etc. Single disk spring and properties of vertical isolation device were analyzed by finite element software ANSYS. The numerical simulation and the theoretical solution of single disk spring are basically coincident when small deformation. Even the deformation is large and there only are minor differences. The contact problems between disk springs, disk group and external sleeve, should be taken into consideration. The comparisons for hysteretic curve between numerical simulation and experiment result of vertical isolation device shows that their stiffness and energy dissipation capacity are very close, and the precision of the model can satisfy the requirement of numerical analysis and engineering application.