中文摘要：

三星型压缩机是一种动力学性能良好的新型活塞式压缩机,其主传动系统由1个主连杆、2个副连杆并联构成的主副连杆机构组成.本文针对三星型压缩机的曲轴配重优化问题建立了其曲轴配重优化设计的数学模型,并以曲轴轴颈中心响应振幅最小作为目标函数,将曲轴配重的质量作为设计变量,利用ADAMS软件中的＂优化设计＂模块求出曲轴配重的最优解.优化结果表明：曲轴配重的大小对三星型压缩机的动力学性能有十分显著的影响,优化后最优点的目标值比原设计点的目标值降低了17.02﹪.三星型压缩机的曲轴配重对改善其动力学性能十分必要.

英文摘要：

The triple star - type compressor is a new type of reciprocating compressor with good dynamic per-formance, and its main drive system is essentially composed of the major - minor linkage. In this paper, in order to study the problem of crankshaft counterweight optimization of the compressor, the mathematical mod-el for the crankshaft counterweight optimization is established. Its objective function is the minimum response amplitude of crankshaft journal center, and the design variable is crankshaft counterweight. The optimal so-lution is obtained by using the ADAMS dynamics simulation software u optimization design, module. Optimi-zation results show that the size of the crankshaft counterweight has a significant influence on the dynamic performance. The optimum target value of is lower 17.02% than that of the original design point. The tr ip le star - type compressor crankshaft counterweight is necessary to improve the dynamic performance.