Abstract: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.