一、前言船用柴由机曲轴是确保船舶安全航行的重要零件之一,因此人们一直对其强度或运转中产生的各种现象进行广泛的研究,所取得的研究成果对曲轴的强度设计作出过贡献。但是,为了对付石油价格的上涨,最近开发的船用柴油机均采用提高P_(max)或低速高扭矩输出等措施来满足节能要求,今后这种倾向将进一步增强。 I. Foreword The marine diesel engine crankshaft is one of the important parts to ensure the safe navigation of the ship. Therefore, people have been conducting extensive research on various phenomena occurring in its strength or operation, and the research results obtained have made significant improvements in the design of the strength of the crankshaft contribution. However, in order to deal with the rising oil price, recently developed marine diesel engines meet the energy-saving requirements with measures such as increasing P max or low-speed and high-torque output, and this trend will be further enhanced in the future.