In order to analyze the torsional vibration of the crankshaft system, a three-dimensional model of the crankshaft system is established, consisted of the piston, connected rod, crank shaft, flywheel and silicone oil damper. Use by multi-body dynamics simulation software ADAMS, created the multi-body dynamics model of the multiple degrees of freedom consisting of rigid hybrid engine system, to do the torsional vibration response simulation, analysis of the torsional vibration on the crankshaft. Through the torsional vibration test of the diesel engine crankshaft system, the accuracy of the simulation calculation results have been verified. This simulation result has higher accuracy, and this calculation method has certain engineering application value.

为了分析曲轴系统的扭转振动，建立了曲轴系统的三维模型，该模型由活塞，连杆，曲轴，飞轮和硅油减振器组成。利用多体动力学仿真软件ADAMS，创建了由刚性混合动力系统组成的多自由度的多体动力学模型，进行了扭转振动响应仿真，分析了曲轴上的扭转振动。通过柴油机曲轴系统的扭转振动试验，验证了仿真计算结果的准确性。该仿真结果具有较高的精度，并且该计算方法具有一定的工程应用价值。