真空管道列车流固耦合研究进展及关键技术分析

Progress on fluid-solid coupling of vacuum pipeline train and analysis of key technology

利用磁悬浮技术、管道内抽真空形成低压运行环境,真空管道列车理论上可以实现超过1000 km/h的运行速度。封闭管道导致气动环境复杂,同时列车悬浮运行使列车运行姿态极易发生改变,列车流固耦合效应明显。为探究真空管道列车流固耦合理论及分析方法,对真空管道列车气动研究进展、轨道列车流固耦合特性研究进展进行了综述,分析了真空管道列车流固耦合关键技术,提出了需要重点发展的真空管道列车流场分析技术、流固耦合分析技术和控制技术,可为真空管道列车流固耦合机理研究提供参考。

Theoretically,the speed of vacuum pipe trains can exceed 1000 km/h by using the magnetic suspended technology in a low-pressure operating environment of pumped vacuums within the tubes.The closed pipe creates a complex aerodynamic environment,while the suspension of the train makes it very susceptible to changes in the attitude of the train.The fluid-solid coupling effects of the train are evident which require targeted research.In order to explore the theory and analysis method of fluid-solid coupling of the vacuum pipeline train,a relatively complete review of the progress in aerodynamic studies of the vacuum pipe train and the study of the fluid-solid coupling characteristics of the railway trains is made.And the key technology of fluid-solid coupling of the vacuum pipeline train is analyzed.It is proposed that the vacuum pipe train fluid-solid coupling study should focus on the development of the vacuum pipe train flow analysis techniques,the vacuum pipe train fluid-solid coupling analysis techniques and the vacuum pipe train control technology.This paper provides reference for vacuum pipe train fluid-solid coupling techniques to facilitate the development of the vacuum pipe train technology.