内燃机燃烧室零件动态热应力研究

Study of Dynamic Thermoelastic Stresses within Components of Combustion Chamber for Internal Combustion Engine

根据热弹性理论 ,在传热方程中不考虑热耦合项的情况下 ,采用轴对称有限元模型 ,分析了某型摩托车汽油发动机活塞在发动机启动时的动态热应力。

Dynamic thermoelastic stresses of components within combustion chamber for a motorcycle gasoline engine were analyzed with finite element method based on the theory of thermoelasticity.The thermal coupled term was not considered in the heat conduction equation.The important suggestions were presented for designing the combustion chamber and improving its thermal and mechanical strength of this type of gasoline engine.