某连续式跨声速风洞压缩机轴系扭振仿真与测试

Simulation and Test of Torsional Vibration of Compressor for a Continuous Transonic Wind Tunnel

摘要:

为满足压缩机轴系扭振激励机理和抑制方法研究需要,对某连续式跨声速风洞压缩机开展轴系扭振仿真分析和测试；根据压缩机轴系参数,对压缩机轴系进行建模仿真,并得到一阶至四阶扭转振型及对应的转速；分别采用无线应变扭矩测试方法和齿轮盘-电涡流扭振测试方法对压缩机轴系扭振情况进行测试,并得到相应的扭矩幅值、扭角以及扭振转速点等数据；测试结果表明,理论建模仿真、无线应变扭矩测试方法和齿轮盘-电涡流扭振测试方法得到的压缩机轴系扭振数据一致性好,建模仿真方法和测试方法可行,相关分析测试数据可作为后续压缩机轴系扭振激励机理和抑制方法试验验证的参考依据。

Abstract:

Simulation and Test of Torsional Vibration of Compressor for a Continuous Transonic Wind Tunnel are carried out to meet the requirement of research on the excitation mechanism and restraint method. The parameters of the compressor shafting are used to model and simulate,and the torsional modes and rotational speed of first to fourth order are obtained. The data of torque amplitude,torsional angle and rotate speed are gotten by using the test method of wireless strain torque test and gear disk-eddy current test. The test results show that the data getting by simulating,wireless strain torque test and gear disk-eddy current test have good consistency,and all the three approaches are feasible. The data of analysis and test can be an important reference for the subsequent experimental verification of the excitation mechanism and restraint method.