The study of emergency evacuation in public spaces,buildings and large ships may present parallel characteristic in terms of complexity of the layout but there are also significant differences that can hinder passenge...The study of emergency evacuation in public spaces,buildings and large ships may present parallel characteristic in terms of complexity of the layout but there are also significant differences that can hinder passengers to reach muster stations or the lifeboats.There are many hazards on a ship that can cause an emergency evacuation,the most severe result in loss of lives.Providing safe and effective evacuation of passengers from ships in an emergency situation becomes critical.Recently,computer simulation has become an indispensable technology in various fields,among them,the evacuation models that recently evolved incorporating human behavioral factors.In this work,an analysis of evacuation in a Landing Helicopter Dock(LHD)ship was conducted.Escape routes specified by the ship’s procedures were introduced in the model and the six emergency scenarios of the Naval Ship Code were simulated.The crew and embarked troops were introduced with their different evacuation behavior,in addition,walking speeds were extracted from data set collected in experiments conducted at other warships.From the results of the simulations,the longest time was chosen and confidence intervals constructed to determine the total evacuation time.Finally,results show that evacuation time meets regulatory requirements and the usefulness and low cost of the evacuation simulation for testing and refining possible ships’layouts and emergency scenarios.展开更多
With the development of large liquid cargo ships,liquid tank sloshing has gradually become a hot research topic in the area of shipping and ocean Engineering.Liquid tank sloshing,characterized by strong nonlinearity a...With the development of large liquid cargo ships,liquid tank sloshing has gradually become a hot research topic in the area of shipping and ocean Engineering.Liquid tank sloshing,characterized by strong nonlinearity and randomness,not only affects the stability of the ship but also generates a huge impact force on the wall of the tank.To further investigate liquid tank sloshing,a comprehensive review is given on the research process of the most focused subjects of liquid sloshing.Summarizing the existing research will help to identify issues in the current field and provide useful references.The methods for investigating sloshing,the research progress and the situations worldwide are discussed.The advantages and defects of experiments and numerical simulations are also explored.The problems which need to be explored in the future are subsequently proposed.展开更多
基金the Spanish Ministry of Economy and Competitiveness through the research project TIN2016-76770-R.
文摘The study of emergency evacuation in public spaces,buildings and large ships may present parallel characteristic in terms of complexity of the layout but there are also significant differences that can hinder passengers to reach muster stations or the lifeboats.There are many hazards on a ship that can cause an emergency evacuation,the most severe result in loss of lives.Providing safe and effective evacuation of passengers from ships in an emergency situation becomes critical.Recently,computer simulation has become an indispensable technology in various fields,among them,the evacuation models that recently evolved incorporating human behavioral factors.In this work,an analysis of evacuation in a Landing Helicopter Dock(LHD)ship was conducted.Escape routes specified by the ship’s procedures were introduced in the model and the six emergency scenarios of the Naval Ship Code were simulated.The crew and embarked troops were introduced with their different evacuation behavior,in addition,walking speeds were extracted from data set collected in experiments conducted at other warships.From the results of the simulations,the longest time was chosen and confidence intervals constructed to determine the total evacuation time.Finally,results show that evacuation time meets regulatory requirements and the usefulness and low cost of the evacuation simulation for testing and refining possible ships’layouts and emergency scenarios.
基金financially supported by the National Natural Science Foundation of China(Grant No.52271271)the National Key Research and Development Program of China(Grant No.2022YFE0104500)+1 种基金“Pioneer”and“Leading Goose”R&D Program of Zhejiang Province(Grant No.2022C03023)Zhejiang Provincial Natural Science Foundation of China(Grant No.LQ17E090003)。
文摘With the development of large liquid cargo ships,liquid tank sloshing has gradually become a hot research topic in the area of shipping and ocean Engineering.Liquid tank sloshing,characterized by strong nonlinearity and randomness,not only affects the stability of the ship but also generates a huge impact force on the wall of the tank.To further investigate liquid tank sloshing,a comprehensive review is given on the research process of the most focused subjects of liquid sloshing.Summarizing the existing research will help to identify issues in the current field and provide useful references.The methods for investigating sloshing,the research progress and the situations worldwide are discussed.The advantages and defects of experiments and numerical simulations are also explored.The problems which need to be explored in the future are subsequently proposed.
基金Supported by Program for New Century Excellent Talents in University under Grant No.NCET-07-0230the "111" Project under Grant No.B07019 at Harbin Engineering University
