CAJ | 학술논문

为了开展柔性喷管全轴摆动动态摆心测试，设计了一种以激光位移传感器、测控装置为基础的测试系统。通过建立数学模型，搭建试验测量装置，利用数据采集处理系统得到了动态摆心漂移数据。该系统采用高精度高频响的激光位移传感器保证了动态响应速度，程控调平机构解决了传感器的精确定位问题，软硬件滤波较好地剔除了扰动信号。系统采样频率2 kHz，输出测量数据频率不低于1 kHz；与静态方法相比较，测量相对误差不大于1％。结果表明，该系统能够准确、实时地测试喷管全轴摆动时的摆心漂移轨迹。
위료개전유성분관전축파동동태파심측시，설계료일충이격광위이전감기、측공장치위기출적측시계통。통과건립수학모형，탑건시험측량장치，이용수거채집처리계통득도료동태파심표이수거。해계통채용고정도고빈향적격광위이전감기보증료동태향응속도，정공조평궤구해결료전감기적정학정위문제，연경건려파교호지척제료우동신호。계통채양빈솔2 kHz，수출측량수거빈솔불저우1 kHz；여정태방법상비교，측량상대오차불대우1％。결과표명，해계통능구준학、실시지측시분관전축파동시적파심표이궤적。
In order to investigate the dynamic test for pivot point of the omni-axial movable flexible joint nozzle,a test system basted on laser displacement sensor and measurement device was designed in this paper.By setting up mathematical model and con-structing a set of experimental system,the dynamic test data of pivot point was obtained by the data-acquisition system.The dynamic response speed of the test system was guaranteed by laser displacement sensor with high precision and high frequency.The problem of sensor accurate positioning was solved by the SPC leveling mechanism.Disturbance signals were eliminated by data processing.The sampling frequency and the output data frequency are respectively about 2 kHz and 1 kHz.Compared with static method,the relative error was not greater than 1%. Test result shows that the system can measure the track of pivot point reliably in real time when the flexible join nozzle is omni-axial moving.