【作者】 薛皓月； 李旭； 张琳； 张涛； 陈昊天；

【Author】 XUE Haoyue;LI Xu;ZHANG Lin;ZHANG Tao;CHEN Haotian;School of Naval Architecture & Ocean Engineering, Huazhong University of science and technology;Wuhan Second Ship Design and Research Institute;

【机构】 华中科技大学船舶与海洋工程学院； 武汉第二船舶设计研究所；

【摘要】 载流管路作为动力系统的血管,广泛应用于飞机、船舶等各等领域。其在流体脉动压力激励下的振动问题可能会威胁管路自身的安全性能,影响动力系统的正常运行。本文以工程常见的U型载流管路为研究对象,采用基于有限元—Fluent的流固耦合数值计算方法分析了载流管路在脉动压力作用下的耦合振动特性。将数值计算结果与实验测试结果进行了对比,验证了计算结果的准确性和计算方法的有效性。在此基础上,研究了流体脉动压力的相位差和结构弹性支撑的刚度参数对管路振动特性的影响。本文提出的方法可为载流管路振动性能的优化设计提供参考。更多还原

【Abstract】 As the blood vessel of power system, current-carrying pipeline is widely used in aircraft,ships and other fields. Its vibration under the excitation of fluid pulsating pressure may threaten the safety performance of the pipeline itself and affect the normal operation of the power system. In this paper, the U-shaped current-carrying pipeline commonly used in engineering is taken as the research object, and the coupled vibration characteristics of current-carrying pipeline under pulsating pressure are analyzed by using the fluid-solid coupling numerical calculation method based on finite element-Fluent. The numerical calculation results are compared with the test results, which verifies the accuracy of the calculation results and the effectiveness of the calculation method. On this basis,the effects of the phase difference of fluid pulsating pressure and the stiffness parameters of structural elastic support on the vibration characteristics of pipeline are studied. The method proposed in this paper can provide reference for the optimal design of vibration performance of Ushaped current-carrying pipeline.更多还原