舰艇高温管路热振耦合试验系统研制

Development of Thermal Vibration Coupling Test system for warship Pipeline

摘要:

针对舰艇高温管路系统难以同时进行振动与高温加载的技术难题,研制了管路高温振动耦合试验系统,为舰艇高温管路的减振设计提供有效的测试平台；该系统分为热环境模拟子系统和振动激励子系统；以石英灯为辐射热源,设计圆筒形加热器,采用ANSYS对温度场进行瞬态热分析,通过试验与仿真对比表明热环境模拟子系统具有较优的温度加载特性；以电磁激振器、功率放大器、数据采集器共同组成振动激励子系统；在20°C、100°C、200°C、300°C、400°C、500°C等温度下对刚性吊架管路与阻尼吊架管路进行热振耦合试验,结果表明温度对管路的振动特性有显著影响,且阻尼吊架能有效降低管路的振动水平；所提出的方法可用于高温管路振动特性试验。

Abstract:

To investigate the vibration reduction of the high-temperature pipeline of marine, a new thermal-vibration joint test system was designed. The joint test system is composed of thermal environment simulation subsystem and vibration excitation subsystem. A serious of quartz lamps was arranged in the form of cycle for heating the pipeline evenly. The thermal environment of the pipeline was analyzed by ANSYS. On the other hand, the actual heating test results show the effectiveness of the analysis. The vibration subsystem is composed of magnetic vibration exciter, power amplifier and multi-channel data acquisition system. The thermal-vibration joint tests of rigid pipeline and damping pipeline were carried out at 20 °C, 100 °C, 200 °C, 300 °C, 400 °C and 500 °C. The results show that the temperature has a significant effect on the vibration characteristics of the pipeline, and the damping can effectively reduce the vibration level of the pipeline. The proposed method can be used to test the vibration characteristics of high temperature pipeline.