The Mechanical Structure Analysis And Optimization Of A Ultra High Speed Passenger Lift

When the ultra-high speed elevators in high-rise buildings,Structural characteristics of the lift,the installation of elevator running curve and the inherent frequency characteristics of high-speed elevator system,plays an important role in passengers stability.Taking Shenyang Sanyo elevator co.,LTD.develop 2 tons of 8 m/s speed of high-speed elevators as the research object.Through preliminary analysis of the research status at home and abroad,on the basis of theoretical calculation,three-dimensiona finite element model,research and optimization with structural analysis,running speed curve and inherent frequency.Ultra-high speed elevator requirement for operating environment(shaft)is higher,First of all,elevator shaft calculate,then the safety of the relevant parts and a configuration has been done,There are three occasions(normal operation,the bottom loading,emergency brake)in which traction calculation and checking traction traction calculation and checking of traction.Be sure of the basic model of the parts and high-speed elevator basic configuration,through the above calculations to determine.Due to the characteristics of high-speed elevator system are not standardized.In this paper,Get the equivalent stress and equivalent strain of main parts,through anslysis of the capsules with 3D design software Solidworks and finite element analysis software Workbench on three working conditions.Optimizing the beam structure,reducing the size,quality and cost under the premise of meet the relevant requirements.With the help of multi-objective optimization model,the Pareto velocity sine ideal speed curve parameters can be obtained to carry ou,To determine the ultra-high speed passenger elevator elevator in the same preference of ideal speed curve of different parameter values,to provide a variety of options for technical personnel.Based on operating efficiency as the objective function,the value of vibration acceleration is less than a standard as a restrictive conditions,through the MATLAB software to optimize the change rate of the acceleration and the maximum acceleration of the elevater operating parameters are carried out,determine the optimal parameter valuesa and meet the high-speed elevator running comfort and stability.Considering traction system,compensation system,cable system,its frame system,weighing system and related damping under the premise of the original set up of 1:1 ratio of traction tractive elevator systems of 8 degrees of freedom dynamic model of the vertical.Using MATLAB software programming to solve high-speed elevators as the change of the load and two to seven different time order natural frequency,according to the results of analysis of natural frequency of the elevator system,and sensitive modal frequency as constraint in the human body,for two to seven order natural frequency of the elevator initial time is optimized,so as to avoid the human body the most sensitive bands.