To solve the poor economic and dynamic performance at high engine speed, a new crank shaft mechanism of air powered engine was proposed.

为解决高转速下动力与经济性能的下降，提出一种新的气动发动机曲轴连杆机构。

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Modeling of crank shaft connecting rod slippery piece mechanism and process of optimization design were introduced, and its optimized result was analyzed and compared.

阐述了曲柄连杆滑块机构的建模、优化设计计算的过程，并分析比较了其优化结果。

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