新型复合式活塞环气密性的数值仿真

摘要

Numerical simulation is the most economic and effective means to study the performance of piston rings .In this paper ,the mathemetic models of a new type of composite piston ring were set up to analyze the air tightness of the piston ring and the air leakage of the piston ring respectively ,the two results agreed with each other .On the basis of this result ,the dynamic compression simulation of a diesel model was conducted .The results show the dynamic compression pressure obtained can meet the actual usage of the diesel .%数值仿真是研究活塞环组性能最经济、最有效的手段。对提出的一种新型复合式活塞环进行了气密性能的建模分析和与之相对应的漏气量建模分析，两种结果相互吻合，并在这一结果的基础上对某型号柴油机进行动态压缩压力仿真，所得到的动态压缩压力满足该机型的实际使用状况。