机械工程与自动化
機械工程與自動化
궤계공정여자동화
MECHANICAL ENGINEERING & AUTOMATION
2015年
1期
1-3,6
,共4页
脱轨系数%冲角%脱轨系数超限时间%燕尾突变%分叉集%车辆脱轨
脫軌繫數%遲角%脫軌繫數超限時間%燕尾突變%分扠集%車輛脫軌
탈궤계수%충각%탈궤계수초한시간%연미돌변%분차집%차량탈궤
derailment coefficient%attack angle%derailment coefficient of overtime%swallowtail catastrophe%bifurcation set%vehicle derailment
基于初等突变理论中的燕尾突变，主要考虑影响车辆脱轨的3个因素———脱轨系数、冲角和脱轨系数超限时间，建立车辆脱轨事故燕尾突变模型。结合该模型，讨论了燕尾突变发生的可能情形，通过燕尾突变模型的分叉集给出了车辆脱轨的临界区和脱轨区。利用Simpack软件，建立车辆动力学模型，验证这个方法的有效性。仿真结果表明：当脱轨系数、冲角和脱轨系数超限时间3个控制变量同时满足条件时，车辆就会发生脱轨事故。
基于初等突變理論中的燕尾突變，主要攷慮影響車輛脫軌的3箇因素———脫軌繫數、遲角和脫軌繫數超限時間，建立車輛脫軌事故燕尾突變模型。結閤該模型，討論瞭燕尾突變髮生的可能情形，通過燕尾突變模型的分扠集給齣瞭車輛脫軌的臨界區和脫軌區。利用Simpack軟件，建立車輛動力學模型，驗證這箇方法的有效性。倣真結果錶明：噹脫軌繫數、遲角和脫軌繫數超限時間3箇控製變量同時滿足條件時，車輛就會髮生脫軌事故。
기우초등돌변이론중적연미돌변，주요고필영향차량탈궤적3개인소———탈궤계수、충각화탈궤계수초한시간，건립차량탈궤사고연미돌변모형。결합해모형，토론료연미돌변발생적가능정형，통과연미돌변모형적분차집급출료차량탈궤적림계구화탈궤구。이용Simpack연건，건립차량동역학모형，험증저개방법적유효성。방진결과표명：당탈궤계수、충각화탈궤계수초한시간3개공제변량동시만족조건시，차량취회발생탈궤사고。
In this paper ,three factors impacting the vehicle derailment which were the derailment coefficient ,the attack angle and the derailment coefficient of overtime were mainly considered .Based on primary catastrophe theory ,the vehicle derailment accident swallowtail catastrophe model was established .Combined with the swallowtail catastrophe model ,the various situation were discussed .With the help of the bifurcation set of the model ,the critical area and the area of train derailment were given .By the software Simpack ,the vehicle dynamic model was set up to verify the validity of the method .The simulation result shows that the train will derailment only when the derailment coefficient ,the attack angle and the derailment coefficient of overtime are all satisfied .
