传动轴轴心轨迹测量技术研究
发布时间：2018-10-10 06:51
【摘要】：传动轴广泛应用在在大型汽轮机组、燃气轮机等大功率传动系统,通过对其运行过程中轴心轨迹及油膜厚度的测量,可以充分掌握传动轴的运行状态,为传动轴及其相关机械系统部件的设计与开发提供可靠的测试依据。 本文通过通过层层深入的方式,分析了传动轴轴心轨迹产生的原因,将传动轴的油膜厚度及轴心轨迹转化为其在转动过程中径向跳动产生的位移,完成了物理模型的建立,设计了有效的数学算法。为了更好的完成各项参数的测量,对影响传感器测量结果的相关参数进行了深入分析。阐述了进行位移测量所使用的电涡流位移传感的工作原理、使用方法。以及为了保障测试结果的可靠性,如何针对温漂进行传感器精度的补偿方法。并同过对数据采集技术,无线数据传输技术,非接触供电技术,深入学习与掌握,设计了一种通过遥测方式完成传感器采集信息传输的数据传输方法,并为解决一些安装在测试台特殊位置上的传感器的供电问题设计了一种非接触供电的方法。结合其他测试资源完成对相关参数的测量工作。并通过LabVIEW软件为平台,设计了可以显示轴心轨迹及油膜厚度变化的测试软件。最后,通过模拟试验,检验了整个测试方法的可行性。
[Abstract]:Transmission shafts are widely used in large steam turbine units, gas turbines and other high-power transmission systems. By measuring the track of the shaft center and the thickness of the oil film during its operation, the operating state of the drive shaft can be fully grasped. It provides reliable test basis for the design and development of transmission shaft and related mechanical system parts. In this paper, the causes of the axial trajectory of the transmission shaft are analyzed by means of layers of depth, and the oil film thickness and the axis trajectory of the shaft are transformed into the displacement produced by the radial runout during the rotation process, and the physical model is established. An effective mathematical algorithm is designed. In order to complete the measurement of the parameters better, the related parameters that affect the measurement results of the sensor are deeply analyzed. The working principle and application method of eddy current displacement sensor used in displacement measurement are described. And in order to ensure the reliability of the test results, how to compensate the sensor precision for temperature drift. And with the same data acquisition technology, wireless data transmission technology, non-contact power supply technology, in-depth learning and mastering, a method of data transmission through telemetry to complete the transmission of sensor acquisition information is designed. A non-contact power supply method is designed to solve the power supply problem of some sensors installed on the special position of the test table. Complete the measurement of related parameters with other test resources. Based on LabVIEW software, a testing software is designed to show the axis track and oil film thickness. Finally, the feasibility of the whole test method is verified by simulation test.
【学位授予单位】：哈尔滨工程大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH165.3
本文编号：2261049
[Abstract]:Transmission shafts are widely used in large steam turbine units, gas turbines and other high-power transmission systems. By measuring the track of the shaft center and the thickness of the oil film during its operation, the operating state of the drive shaft can be fully grasped. It provides reliable test basis for the design and development of transmission shaft and related mechanical system parts. In this paper, the causes of the axial trajectory of the transmission shaft are analyzed by means of layers of depth, and the oil film thickness and the axis trajectory of the shaft are transformed into the displacement produced by the radial runout during the rotation process, and the physical model is established. An effective mathematical algorithm is designed. In order to complete the measurement of the parameters better, the related parameters that affect the measurement results of the sensor are deeply analyzed. The working principle and application method of eddy current displacement sensor used in displacement measurement are described. And in order to ensure the reliability of the test results, how to compensate the sensor precision for temperature drift. And with the same data acquisition technology, wireless data transmission technology, non-contact power supply technology, in-depth learning and mastering, a method of data transmission through telemetry to complete the transmission of sensor acquisition information is designed. A non-contact power supply method is designed to solve the power supply problem of some sensors installed on the special position of the test table. Complete the measurement of related parameters with other test resources. Based on LabVIEW software, a testing software is designed to show the axis track and oil film thickness. Finally, the feasibility of the whole test method is verified by simulation test.
【学位授予单位】：哈尔滨工程大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH165.3
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