Study On Simulation Optimization Of The Steel Wire Rope’s Longitudinal Vibration In Ultra-deep Vertical Shaft Hoisting System

Along with the increasing consumption of the shallow resources, it has become an inevitable trend of the global development that exploring the mineral resources in the deep earth. The exploitation and utilization of deep resources cannot be separated from the support of foundational equipment. However, the basic research on the mining and hoisting of deep resources is relatively weak at home and abroad. Therefore, the longitudinal vibration of ultra-deep hoisting equipment steel wire rope is studied in this paper. As an important mine equipment, the performance of hoisting system directly affects the safety and efficiency of the mine production. The vibration problem of the wire rope in the hoisting process is an important factor that influences the life and performance of the hoisting equipment. The vibration of the hoisting rope is influenced by many factors, and the final performance is constant change of the tension and deformation.Combining the mechanical simplified model with the characteristics of ultra-deep hoisting system, the vibration type of the hoisting rope is determined, which is a kind of piecewise nonlinear vibration with slowly varying parameters. According to the vibration type, the tension and deformation differential equation and simulation model of the hoisting rope is established. For the convenience of the later experiment, the parameters of the test bench are based on the prototype with the similarity principle. Through the comparative analysis of simulation results, the change law of the tension and deformation is obtained under the influence of acceleration, elasticity modulus and other factors. Then appropriate measures are taken to suppress the vibration. According to the optimization simulation model, the effect of trapezoidal acceleration, six-stage hoisting process and modified trapezoidal acceleration to the vibration in the hoisting process is analyzed.Finally, limitations of the research method and improving direction of the later research are proposed. Combining the newest non-rope hoisting technology, a new scheme is designed, which could optimize the vibration in the hoisting process. The use of acceleration obtained by the real-time feedback is predicted.