A principle for the measuring of loads on the stern bearing of a propeller shaft in water tunnel is presented in this paper. In this method, loads on the sthern bearing surface are obtained through direct measuring data of the support reactions. Stressed on the theory of measuring method, we established the simplified model of bearing-support structure and obtained the load-response relationship of a pre-loaded support structure through formula derivation as well as the analytical expressions of bearing loads and support reactions. Based on this, a identification algorithm was further established. Simulation results show that this method has relatively high precision, and is suitable for the load identification of the stern bearing of a propeller shaft in water tunnel.
WEI Wei;ZHANG Zhi-yi;HUA Hong-xing.
Identification of Loads on the Bearing Based on Support Reaction Meauring[J]. Journal of Vibration and Shock, 2015, 34(3): 156-160