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现代设计要求柔性连杆机构不仅在质量上要轻型化，而且性能上还要满足承受重载荷的要求。在高速运转的情况下，载荷的冲击而引起柔性连杆机构动力学特性的变化也应该加以研究，以为机构综合提供理论依据。本文对承受具有一定质量载荷冲击的柔性连杆机构动力学控制方程作了修正，使其能够较好地反映冲击载荷的动力学效果，并以此进行数值模拟。模拟结果表明，基频对冲击载荷较为敏感，冲击载荷质量与连杆中点动态响应呈反指数关系，这说明柔性连杆机构对于冲击载荷具有较好的稳定性。
Modern design requirements flexible linkage not only lighter in quality, but also to meet the performance requirements to withstand heavy loads. Under the condition of high speed operation, the change of the dynamic characteristics of the flexible linkage mechanism caused by the load impact should also be studied in order to provide a theoretical basis for the mechanism synthesis. In this paper, the governing equations of dynamic response of a flexible link mechanism subjected to a certain mass load impact are modified so that it can better reflect the dynamic effect of impact load and carry out numerical simulation. The simulation results show that the fundamental frequency is sensitive to impact load and the impact load quality is inversely exponential with the midpoint dynamic response of the connecting rod. This shows that the flexible connecting rod mechanism has better stability against impact load.