Abstract:Basing on the theory of impact-function for the clearance between piston-pin and bushing and the computational dynamics of multibody system, the effect of the piston-pin clearance on the dynamic characteristics of the piston-connecting rod-crankshaft system of the internal combustion engine is investigated. The clearance between the piston-pin and the bushing is described by the impact function method. The three dimensional solid models for the piston, connecting rod and crankshaft and the multibody dynamic model for the whole mechanism are established. Considering the mechanism with both rigid and flexible connecting rods, the acceleration and velocity for the piston and the orbit for the piston-pin are analyzed. The influences of the piston-pin clearance on the dynamic behavior of the system are investigated. The results show that the mechanism responses are greatly influenced by the clearance. There are many sharp peaks on the piston acceleration curves when the piston reaches top dead center (TDC) and bottom dead center (BDC).
赵帅 唐斌 安西方. 计及活塞销间隙的内燃机曲柄连杆机构动力学分析[J]. , 2013, 32(4): 133-137.
Zhao Shuai Tang Bin An Xi fang . Dynamics analysis of the crank and connecting rod mechanism of the internal combustion engine with piston-pin clearance. , 2013, 32(4): 133-137.