龙格-库塔法在柴油机轴系扭振计算中的应用

传统的用于柴油机轴系扭振计算的方法,如数学解析法等均基于稳态扭转激励,而对于非周期激励下的柴油机扭振响应计算,则需要研究基于时域的扭振计算方法。介绍了一种基于龙格-库塔解法的柴油机轴系扭振计算方法,同时给出了该方法的计算流程。和传统计算方法的比较表明:两种算法一致性较好,从而证明了该方法的可靠性,可应用于工程实际。

The Application of Runge-Kutta Method in Diesel Engine Shafting TorsionalVibration Calculation

The traditional methods such as mathematical analytic and other methods used in diesel engine shafting torsional vibration calculation were based on stationary torsional excitation in frequency domain. However, for those under non-periodic excitation, the methods based on time domain were needed. One diesel engine shafting torsional vibration calculation method based on Runge-Kutta method was introduced together with its calculation process. The comparison between these two methods showed that the consistency was quite well. Thus, the method was proved stable and could be used in engineering practice.