Multi-Body Dynamics Simulation Analysis of Crankshaft Assembly in V-Type 12-Cylinder Large Diesel Based on Adams

Abstract

Abstract. Crankshaft assembly, as one of the most important parts of the engine, always suffers many kinds of cyclic loading during service. Due to the higher requirements for dynamic property of mechanical system, it is necessary to work on multi-body dynamics simulation of crankshaft assembly quick and accurately. The multi-body dynamics simulation analysis was carried out to the crankshaft assembly in V-type 12-cylinder large diesel by dynamics analysis software ADAMS in this work. The kinematic characteristics of piston and load characteristic of connecting rod are obtained via simulations. The comparison of loads on connecting rod between simulation result and analytical calculation result verified the accuracy of multi-body dynamics simulation of crankshaft assembly based on ADAMS. The simulation results can provided basis for finite element analysis of crankshaft and provided guidance for improving the dynamic characteristic of crankshaft assembly.