Study On Simulation Optimization Of The Steel Wire Rope In Ultra-deep Hoisting System

Since the reform and opening up,the national economy the developed rapidly,comprehensive national strength continued to increase,people's living standards are improving,these can't be separated from the support of energy,especially coal resources.With the exploitation of shallow coal resources in recent years,it has become a national strategy to dig deeper into the earth.In view of this,CITIC Heavy Industries co.,LTD united with domestic universities successfully apply national “973 program” program: “Research on design,manufacture and safe operation of large scale hoisting equipment in ultra-deep well”,to carry out research on ultra-deep mine(deep more than 1200m)large-scale lifting equipment design.This paper analyzes the limitation of the traditional lifting way(single rope winding and multi-rope friction type),and feasibility of multi-rope winding in ultra-deep mine hoisting,and determine the multi-rope winding ultra-deep mine hoist vibration type system is parametric slowly varying nonlinear vibration by the vibration theory analysis;Establish mechanical model of multi-rope winding type ultra-deep mine hoisting system,then set up the mathematical model of the dynamic tension and deformation of wire rope;according to the basic requirements of ultra-deep hoisting,determine the prototype parameters(depth 1500 m,maximum speed 18m/s),and then according to the similarity theory to determine the parameters of super deep well lifting test bed,and then on the basis of test parameters and rope dynamic tension and deformation mathematical model,establish dynamic simulation model in Matlab-Simulink,carry out simulation test about lifting and lowering of the two process simulation,through the analysis of simulation results,obtain the variation law of dynamic tension and deformation of wire rope;By mechanical optimization design,optimized to select the test maximum speed and acceleration of the two parameters,the results when the maximum speed test for 2.4 m/s,and the speed is 0.5 m/s2 the objective function is smallest and the vibration is the smallest;finally,put forward the S curve as the ultra-deep mine hoisting system of the velocity model,and verify the improvement effect of S curve on dynamic performance in a Anhui mine hoist.