输气管道矫正设备的模态试验与振动分析

Modal Test and Vibration Analysis of Gas Pipeline Correction Equipment

针对煤炭采空塌陷引起的输气管道沉降问题,研发了一套输气管道智能矫正设备。采用SolidWorks和ANSYS Workbench工程软件对该设备进行了模态仿真分析,分析结果表明:智能矫正设备前6阶模态频率随阶数的提高呈递增趋势,并在设备的1、2、3、6阶出现扭转现象,此时传动模块的大轮上发生条状形变。在模态仿真分析后进行了模态试验,并将试验数据与仿真数据对比,得知智能矫正设备两种测验方法所得数据相差很小,证明了所得数据具有较强的可靠性。最后为了了解智能矫正设备的振动特性而进行了振动试验,试验结果表明:设备的振动频率集中在0.53、50.06、80.97、99.92、171.38、194.65Hz附近,与设备固有频率相差甚大,保证了该智能矫正设备在运行时不会出现共振现象。

A set of intelligent correction equipment for gas pipelines was developed for the problem of gas pipeline settlement caused by coal mining subsidence.The modal simulation analysis of the device was carried out by using SolidWorks and ANSYS Workbench engineering software.The analysis results show that the first six modal frequencies of the intelligent correction device increase with the increase of the order,and are in the first,second,third and sixth of the equipment.The torsion phenomenon occurs in the order,and a strip deformation occurs on the large wheel of the transmission module.After the modal simulation analysis,the modal test was carried out,and the experimental data was compared with the simulation data.It was known that the data obtained by different test methods of the intelligent correction device had little difference,which proved that the data has strong reliability.Finally,in order to understand the vibration characteristics of the intelligent orthodontic equipment,the vibration test of the equipment was carried out.The experimental results show that the vibration frequency of the equipment is concentrated around 0.53 Hz,50.06 Hz,80.97 Hz,99.92 Hz,171.38 Hz,194.65 Hz,and equipment.The natural frequencies are very different,which ensures that the intelligent correcting device does not resonate during operation.