Modeling And Compensation Design Of Air Pressure Variation In High-speed Elevator Car And Its Application

With the continuous development of modern society,high-rise buildings continue to emerge,ordinary low-speed elevator has been unable to meet people's needs,the development of high-speed elevators become the trend,At the same time people on the ride in the process of safety and comfort have also been higher and higher requirements.In this paper,the research on the transient influencing factors of the air pressure in the car during the operation of the high-speed elevator,the compensation method of the air pressure of the car,the structural design of the compressor air pressure transient compensation,and in the KLK2 high-speed elevator design has been applied to verify.The main contents include:The first chapter summarizes the development of high-speed elevators at home and abroad,and summarizes the research status of key problems such as vibration,noise and energy consumption in high-speed elevator design.This paper introduces the research background,content and frame structure of this paper,and expounds the significance of this paper.In the second chapter,based on the law of atmospheric pressure of high-speed elevator car,a large-scale fluid vortex model is established,which is based on the simulation analysis and experimental measurement of the three-dimensional model.The original theoretical model is corrected,and the transient equation of the car pressure is obtained.And the results are verified by simulation.In the third chapter,aiming at the influencing factors of the atmospheric pressure of the car,the change of the amplitude and the change rate of the air pressure in the high-speed elevator car is based on the multi-objective niche particle swarm optimization algorithm.Aiming at the problem of discrepancy and uncertainty between influencing factors,the improved Latin hypercube test is used to rearrange the influencing factors.And the reliability of the algorithm is verified by taking KLK2 high speed elevator as an example.In the fourth chapter,the niche particle swarm optimization algorithm based on the high pressure elevator car is designed to design the car-related structure,mainly aiming at the linkage design between the shroud,the ventilation hole,the fan and the multi-structure.The ventilation vents with different structure shrouds,different layout modes and different types of compensation fans are given according to the different selection parameters of high-speed elevators.And take KLK2 elevator as an example to carry on the case analysis.In the fifth chapter,based on the related theoretical research in this paper,based on the original high-speed elevator design system,the design of the high-speed elevator car pressure transient compensation design subsystem,and KLK2 high-speed elevator design in the application of validation.The sixth chapter summarizes the main contents of this paper,and prospects the shortcomings of the research process.