Study on the Thermal Stability for the Hopping Diaphragm of Shape Memory Alloy

摘要

In this paper, the modified iteration method is used in the study on thermal stability of the hopping diaphragm of the two-way shape memory alloy under uniform temperature field. In quadratic approximation, the quadratic approximate characteristic forula of the hopping diaphragm were obtained. The geometric criterion and osme essential parameters for evaluating the properties of the hopping diaphragm have been discussed. The research results show that the thermal stability of the two-way shape memory alloy's hopping diaphragm has a connection with the material constants, geometric paramteters and heat treatment processes, and the resutls of application basically conform to the experiement data.