【摘要】 本文研究了水轮机止漏环的转子动力特性系数的计算方法，采用整体流动理论及Ｍｏｏｄｙ摩擦方程简化流体运动方程，提出四阶Ｒｕｎｇｅ－Ｋｕｔｔａ积分法及迭代过程相结合的方法求解摄动方程。进一步研究了各种因素对止漏环动力特性的影响规律，本文的工作可以作为水轮机组动力分析的基础。更多还原

【Abstract】 The rotordynamic characteristics of annular seals in hydraulic turbines are investigated in this paper. The bulk-flow model and the Moody’s friction equations are applied to simplify the governing equations. The fourth-order Runge-Kutta integration method and an iterative procedure are combined to solve the purterbation equations. Further investigation are also made on the factors influencing the rotordynamic characteristics. The research in this paper can provide a theoretical basis for the rotordynamic analysis of hydraulic turbines,更多还原