Optimization Design Of Car Structure And Aerodynamic Performance Of High Speed Elevator

Elevator came into being as a quick and convenient means of transport with the extensive construction of tall buildings.High speed,intelligent,smooth,comfortable has become a symbol of modern elevator features.The modern elevator,as an indispensable vertical transportation tool,has been widely used in the city's high-rise commercial buildings,residential buildings,stations and large shopping malls and other buildings.But The comfort and safety of the elevator when the elevator is felt by the elevator is not a small challenge with the increasing speed of modern elevator,the load and the volume.The comfort and safety of the elevator when the elevator is felt by the elevator is not a small challenge.This paper analyzed the influence of the car structure on the aerodynamic characteristics of the elevator during the operation of the high speed elevator,and a car structure model based on the flow guide cover has been established.The pressure,stability,resistance,vibration and other aerodynamic characteristics of different types of high speed elevator cage were studied,and the optimization model was established.A multi objective evolutionary algorithm based on difference was proposed to simulate and optimize the model.And the reasonable mathematical model of aerodynamic optimization of high speed elevator was obtained,and then Analysis and comparison were carried out.The main contents of this paper are as follows:introduced the development of modern elevator technology and extensive application,detailed introduces the research status of gas dynamics,aerodynamic noise and aerodynamic optimization method of modern high speed elevator,the aerodynamic optimization method for dynamic design of high speed elevator gas,gave the main contents of this paper.the aerodynamic characteristics of the elevator in the elevator were analyzed,the elevator car model was established,and the method to simplify the model and determine the boundary conditions was put forward.Studying on the aerodynamic force,speed and distance of the elevator during operation,and of the elevator car dome structure was simulated and analyzed the distribution of the elevator car structure surface pressure,change of the structural parameters on the aerodynamic drag effect.based on the analysis of the influencing factors of the elevator car structure,a high-speed elevator aerodynamic optimization model,the aerodynamic characteristic parameters of design variables and constraint conditions were determined,and using the improved differential evolutionary multi-objective optimization algorithm for high lift aerodynamic optimization mathematical model was simulated based on the the optimization results were analyzed and compared.looked forward to the future research direction on the basis of summarizing the contents and results of this paper.