As one of the most important parts of the internal combustion engine, crankshaft plays an irreplaceable role in the work of the internal combustion engine. Meanwhile, crankshaft has a complex structure, bears large and alternating forces and is prone to stress concentration, leading to the occurrence of complex deformation and severe vibration. So strength and vibration analysis of the crankshaft has become a key issue in the development of the internal combustion engine. In this paper, using the finite ele...