计及轴向力影响的传递矩阵精确公式

在计及轴向力作用并考虑剪切变形的情况下 ,本文对转子轴段的受力与变形状态进行了较为细致的分析 ,导出了两种不同形式的等直截面轴段传递矩阵精确公式。实例分析及其与实验结果的对比 ,不仅表明了轴向力对转子支承系统的动力特性确实存在着不宜忽略的影响 ,同时也验证了精确公式的良好准确性。

PRECISE TRANSFER MATRIX FORMULAE CONSIDERING AXIAL FORCES

Two precise transfer matrix formulae of different forms for analysis of shaft element with constant section parameters are derived which take axial forces and shearing deformation into account.Both of the formulae are applied to a practical example.The comparison between the results of the calculation and experimental data shows that the precision of the formulae is very well and that considerable axial forces do have a nonnegligible influence on dynamic properties of rotor bases system.The presented formulae not only extend the application of the transfer matrix method,but also provide a convenient approach to solving the specific engineering problems in dynamic analysis of the rotor bases system with considerable axial forces due to pre pressed coupling curves in its assemblage.