Studies on Stability of Two-degree-of-freedom Articulated Pipes Conveying Fluid : Effect of an Attached Mass and Damping
Studies on Stability of Two-degree-of-freedom Articulated Pipes Conveying Fluid : Effect of an Attached Mass and Damping
复制标题
DOI：
10.1299/jsme1958.24.1354
复制
发表时间：
1981-08
期刊：
影响因子：
--
通讯作者：
Y. Sugiyama;T. Noda
中科院分区：
文献类型：
--
作者：
Y. Sugiyama;T. Noda
本文从理论和实验两方面研究了附加质量和阻尼对悬臂铰接输流管道稳定性的影响。讨论了颤振失稳从根轨迹图中的一个分支向另一个分支的转移。这种不稳定性在两个分支之间的转移是这类非保守问题中有趣的现象之一。利用Hurwitz准则对有阻尼和无阻尼情况下的稳定性进行了分析。理论和实验结果表明，当悬臂系统的出流端附近附加大质量时，无阻尼的理论预测会导致不适当的稳定极限。
Effect of an attached mass and damping on the stability of cantilevered articulated pipes conveying fluid is studied theoretically and experimentally in the case of two degrees of freedom. The transference of flutter-type instability from one branch in root locus diagram to another is discussed. This transference of the instability between two branches is one of the interesting phenomena in this type of non-conservative problems. Stability analyses by Hurwitz criterion are made with and without damping. It is shown by theory and experiment that the theoretical prediction without damping leads to undue stability limit when a big mass is attached near the discharge end of a cantilevered system.