消防车输水管道减振控制

The Control of Water Pipe Vibration of Fire Truck

针对消防车输水管道振动过大的问题,利用振动噪声分析系统LMS进行振动响应的试验分析,以获得振动响应幅值及其主要的频率成分。再利用有限元分析软件ADINA对其进行结构及流固耦合模态分析,并且利用其流固耦合求解器,通过计算得到管道对流体脉动的响应特性,综合分析得出管道振动的根源所在,根据一般的管道减振策略,结合试验和理论的分析结果,提出可行的解决方案,并且利用ADINA进行可靠性仿真验证。结果表明:采用的改进措施能有效地改善管道的振动情况。

To solve the problem of the abnormal vibration of the fire truck water pipe,it used the noise and vibration analysis system LMS to acquire the vibration amplitude of the response and the main frequency.Modal analysis of structure and fluidstructure interaction was calculated by the finite element analysis software ADINA,whose fluid-structure interaction solver was used to acquire the response characteristics of fluid pulsation of the pipeline,to find the cause of the vibration.According to the results of experimental and theoretical analysis,it proposed feasible solutions,and verified by the ADINA.The result shows that the improvement measures could effectively improve the vibration of the pipeline.