Modeling And Simulation Of Passenger Ship Emergency Evacuation Based On Improved Multi-grid Model

With the continuous innovation and progress of economy and technology,as well as the booming development of tourism,both inland river and sea passenger ship construction scale is getting bigger and bigger,more and more luxurious.Recreational facilities on passenger ships are becoming more sophisticated,such as the Yangtze Gold 6 luxury cruise,which is comparable in scale to a five-star hotel in a land building.However,with the development and progress,the problem of ship safety is becoming more and more serious.When a maritime accident occurs,how to evacuate the crew reasonably and efficiently becomes an important guarantee to protect the safety of life and property.In this paper,the behavior characteristics of personnel evacuation in emergency situations are considered,and a simulation model of personnel evacuation is constructed.Through the simulation analysis of personnel evacuation in the passenger ship environment,the layout of cabins,passageways and entrances and exits is optimized and analyzed,so as to improve the evacuation efficiency of passenger ships.The specific research of this paper is as follows:Firstly,the characteristics of ship layout are analyzed.This paper summarizes the characteristics of ship cabin division and the design specifications of ship passage,entrance and exit and stairway,and analyzes the behavior characteristics,safety evacuation conditions,basic movement parameters and characteristics of evacuation model of personnel in emergency evacuation.Secondly,the characteristics of the evacuation model and the most commonly used micro model are analyzed.Based on the behavior characteristics of people in evacuation,the original social force model is adapted to improve,and the panic behavior and conformity behavior of people are quantified from the expected speed and force of pedestrians respectively.Then,a multi-grid model based on social forces is proposed.The pedestrian comity behavior model based on game theory was added to the evacuation model constructed in this paper,which was used to solve the position conflict problem in the evacuation process.The accuracy and applicability of the model to the pedestrian movement feature characterization and multi-exit problem were verified by the programming simulation of mathematical software.Finally,the evacuation model established in this paper is used to analyze the evacuation of the entertainment cabin and the living cabin of a luxury cruise ship with the largest number of people.The existing layout of the cruise ship was optimized and analyzed by observing the number of people escaping at each exit and the evacuation time in the simulation.