1.The State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044, China;
2. College of Mechanical Engineering, Chongqing University, Chongqing 400044, China;
3. Mechanical and Electrical Engineering College, Shihezi University, Shihezi, Xinjiang 832003, China;
4. Mechanical and Electrical Engineering College, Henan University of science and technology. Luoyang, Henan 471039, China
Abstract：The transverse vibration of a winding hoist system’s hanging rope is the main evaluating index for multi-layer winding wire rope orderly arrangement and engineering safety.In order to study transverse vibration response of hanging rope under excitations of different types rope grooves, the vibration equation of the hoisting system’s hanging rope was established with Hamilton principle, excitation functions of different types rope grooves were deduced, the vibration equation was discretized using Galerkin method.The operational state curve of a certain Blair rope hoisting test platform was taken as the imported motion parameter to analyze lateral vibration responses of the hanging rope under excitations of different types rope grooves.The hanging rope’s transverse vibrations were recorded with a high speed camera, and an effective image-processing method was proposed to obtain time history figures of transverse vibration responses of the rope’s fixed point.The results of the theoretical model’s numerical simulation were compared with the test ones, it was shown that the hanging rope’s transverse vibrations under excitations of symmetric grooves are larger than those under excitations of non-symmetric grooves; the changing trend of actually measured curves of the rope’s transverse vibrations is consistent to that of the numerical simulation curves, the actually measured vibration frequencies are close to the calculated vibration ones, so the transverse vibration model established here for the hanging rope is effective, it provides a reliable theoretical basis for grooves types choosing of extremely deep well hoisting systems.
彭霞1,2,3，龚宪生1,2，李济顺4，巫显照1,2 . 缠绕式提升系统悬绳横向振动特性的理论与实验研究[J]. 振动与冲击, 2019, 38(3): 8-15.
PENG Xia1,2,3,GONG Xiansheng1,2,LI Jishun4,WU Xianzhao1,2. Theoretical study and tests for transverse vibration features of a winding hoisting system’s hanging rope. JOURNAL OF VIBRATION AND SHOCK, 2019, 38(3): 8-15.
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