含集中质量悬臂输流管的稳定性与模态演化特性研究1)
易浩然, 周坤, 代胡亮, 王琳, 倪樵

STABILITY AND MODE EVOLUTION CHARACTERISTICS OF A CANTILEVERED FLUID-CONVEYING PIPE ATTACHED WITH THE LUMPED MASS 1)
Yi Haoran, Zhou Kun, Dai Huliang, Wang Lin, Ni Qiao
图3 集中质量处于不同位置时, 管道系统的前四阶复频率随流速变化的Argand图
Fig. 3 Argand diagram of the first four order complex frequencies varying with the flow velocity of the pipe system when the lumped mass is at different positions