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本文以横向动力学稳定性理论为基础,对转向架式机车的蛇行现象进行较为全面分析,导出了四轴机车17个自由度的横向振动方程.二系悬挂旁承处的非线性摩擦力矩以及二系横向减振器的非线性摩擦力是应用H.H.包戈留包夫提出的按小参数幂的渐近展开法构造的一次近似解,将车体横摆及前后转向架摇头三个非线性振动方程转换为等效线性方程. 编制了求解矩阵特征值和特征向量的电算源程序,利用TQ-16电子计算机采用QR法,对东方红<3>型内燃机车一、二次蛇行运动性能,进行多方案比较计算.取得了有实用意义的数据,为进一步改善机车横向稳定性能以及为今后设计高速机车走行部提供理论依据.
Based on the theory of lateral dynamic stability, this paper analyzes the phenomenon of the wobbling of bogie locomotives comprehensively, and derives the transverse vibration equation of 17 degrees of freedom for four-axle locomotives. The nonlinear friction force of the secondary transverse shock absorber is an approximate solution using the asymptotic expansion method of small parameter power proposed by HG Bao Geluo husband to shake the head of the vehicle body and the front and rear bogie three non-linear The vibration equation is transformed into the equivalent linear equation, and a computer program is developed to solve the eigenvalues and eigenvectors of the matrix. Using the QR method, the TQ-16 computer is used to analyze the primary and secondary meandering performance of Dongfanghong <3> diesel locomotive , And made comparative calculation of multiple schemes.Good practical data were obtained, which provided theoretical basis for further improving the lateral stability of locomotives and designing the running department of high-speed locomotives in the future.