水润滑轴承水膜压力无线测试系统研究

为了深入研究水润滑轴承特性，需要了解轴承真实的水膜压力分布，而传统的滑动轴承润滑膜压力测试无法获得轴承全周水膜压力的连续分布，且采用集流环作为信号传输媒介，其成本较高、对输出信号干扰较大。针对以上不足，研究并设计了一种无线测试系统，可测量水润滑轴承全周水膜压力，并实时监测水润滑轴系的运转情况。介绍了测试系统组成，包括无线采集发射与接收装置、传感器与信号调理模块、测试软件及水润滑轴承试验台，最后应用此系统对八沟槽水润滑平面橡胶轴承的水膜压力进行测试，并与仿真结果对比分析。结果表明，该测试系统实用性良好，可用于测试其他材料和结构的水润滑轴承的水膜压力。

Research on Wireless Measurement System for Film Pressure of Water-Lubricated Bearing

In order to study the properties of water-lubricated bearings, the real water film pressure distribution should be obtained. The circumferential continuous distribution of film pressure cannot be acquired with traditional measurement methods for the lubrication film pressure of the sliding bearing, and the collector ring used for transmitting the signal has both high cost and interference. In this paper, a wireless measurement system is designed and studied for use in measuring the entire circumferential continuous film pressure distribution of water-lubricated bearings and monitoring the operation of the water-lubricated shafting. The components of the measurement system are introduced, including the wireless acquisition and transmission equipment, wireless receiving equipment, sensor and signal disposal module, measurement software, and bearing test rig. This system is used to measure the film pressure of the water-lubricated rubber bearing with eight grooves and flat staves, and the comparative analyses between the measurement and simulation results are conducted. The results show that the measurement system can be practically used to measure the film pressure of water-lubricated bearings with other materials and structures.