温度和机械载荷下活塞的耦合应力分析

Analysis of Coupling Stress of Piston under Thermal and Mechanical Load

建立了活塞的有限元模型,分别计算活塞在静止状态下受热负荷、机械负荷及热负荷和机械负荷共同作用下的应力值.计算结果表明:在机械负荷和热负荷作用下,最大应力都没有超过材料的最大拉压强度值,机械负荷和热负荷的耦合作用中以机械负荷为主.

The finite element model of piston is built to compute the stress values of the static piston respectively with the effects of high heat and intensive mechanical load with a high speed. The result shows that with the effects of mechanical load and heat load, the maximum stress does not exceed the maximum intensity of the material, and the mechanical load is the major stress.