一种基于动态因子驱动的递进式多场耦合算法

thermal-stress coupling model is used to propose a step multiphysical algorithm based on dynamic factor. The model is divided into explicit-integral areas and implicit-integral areas roughly first. After that all areas divided are integrated using partitioned-solution method independently. Any explicit-integral area where any physical field change exceeds the critical is checked out, and divided into a sub explicit-integral area and a sub implicit-integral area based on the dynamic factor. Then the sub implicit-integral area is integrated again to guarantee result precision. The algorithm proposed is validated by application of analysis of the over-loading safeguard component of the low-voltage breaker——the bimetallic strip, which works under heat and structural physical environments.