Xiao Xing-ming

Dynamic analysis and simulation on sliding process of multi-rope friction hoist

The authors present two-degree of freedom dynamic equations for a multi-rope friction hoist system while sliding occurs, develop its multi-degree of freedom physical model, and resolve the MDOF dynamic equations based on the Lagranges equations. To analyze the solution differences between the two models, their dynamic equations are simulated with SIMULINK of MATLAB software, which provides a theoretical reference for the further investigations on friction hoist sliding.

Study on vibration characteristic of hoist cage and fault diagnosis of steelwork

In this paper, 6 degrees of freedom vibration model of hoist cage excited by steelwork faults was established first. Then horizontal and vertical vibration characteristics under local faults and whole faults were simulated through MATLAB, based on which a wavelet singularity method was proposed to process the vibration to determine the position and seriousness of the steelwork faults. Finally, simulation model and the signal processing method were verified by test.