Bottleneck Analysis And Simulation Of Emergency Evacuation Of Aircraft Crew

After the plane crash accident,the important means to ensure the safety of the crew is the aircraft emergency evacuation.Airworthiness regulations require that aircraft with more than 44 seats demonstrate the airworthiness of an emergency evacuation.The actual demonstration test can be the research direction of the movement law in the process of reappearing the passenger flow in the cabin.However,it is difficult to guarantee the safety of the test participants and the test cost is high.Therefore,laboratory research and simulation research have become important research directions for emergency evacuation,and the research results provide support for the research on the movement law of pedestrian flow in aircraft test.In laboratory and simulation studies,a single evaluation method,such as evacuation time,cannot carry out a deeper analysis of the test data.Therefore,this paper will carry out emergency evacuation laboratory research and establish a microscopic visual evaluation method of analysis for the cabin environment,combined with the experimental data analysis results,to establish and verify the validity of the emergency evacuation simulation model.A full-scale emergency evacuation simulation model for regional jets is established to predict the bottleneck movement in the cabin.Therefore,this article will be on the basis of the emergency evacuation of the laboratory study,establish suitable for microscopic visual analysis method for evaluating the cabin environment,set up with the test data and verify the validity of the emergency evacuation simulation model,and establish a regional jet full-size emergency evacuation simulation model,predict bottlenecks in the whole cabin.A 54-person emergency evacuation test platform is set up in reference to the Boeing 737-800.The evacuation experiment is carried out under the width of two groups of main passages,and the competitive psychology and cooperative psychology of the personnel were stimulated through the reward and punishment mechanism.The trajectory of the personnel was tracked by MIAS software,and the spatial and temporal distribution law of the passenger flow in the cabin was analyzed: evacuation trajectory,bottleneck spatial and temporal distribution law,and flow spatial and temporal distribution law.The evaluation indexes of the bottleneck area in the main aisle and the front of the cabin are given under different psychological conditions to study the influence of psychological factors on the evacuation efficiency.In the simulation analysis of emergency evacuation,based on the research results of the emergency evacuation test in the competitive state,combined with the social force model design simulation: cabin layout,passenger evacuation path and expected speed and other parameters.Firstly,the simulation model is verified by evacuation time.Secondly,based on the Voronoi diagram,the simulation results are analyzed,and the bottleneck space-time distribution law of the simulation model is analyzed from the micro level.The consistency between the simulation model and the test results is verified by comparing with the test results.Based on the analysis of emergency evacuation test of regional airliner and the research of emergency evacuation test and simulation model,the full-scale cabin layout and evacuation path of passengers are planned.Run the simulation model,predict the evacuation time and bottleneck movement rule of regional airliner,compare with the evacuation time and bottleneck movement rule of downward flow of people in the competition mode of regional airliner,verify the validity of the simulation model,and provide reference for improving the evacuation efficiency of passengers in the evacuation process.