250km／h高速列车制动方式仿真分析

Computerized Simulation and Analysis of the Braklng Model of 250km/h Hlgh-speed Train

本文根据我国所论证的２５０ｋｍ／ｈ高速列车制动技术条件，以及我国的轮轨粘着曲线，从最大可能利用粘着制动的角度出发，将列车制动过程的速度变化分成几个阶段。在此不同阶段上选取最佳平均利用粘着系数，止以此为基础求得利用轮轨粘着的列车制动力。同时，设置了可能采取的非粘着的制动力。文中取得了列车制动的数学模型，进行了制动过程的仿真运算益加以分析。

In the thesis according to the braking technical conditionof the 250 kni/h liighspeed train dernonstrated and in view of the adhesivecoefficient betvveen wheels and rails of our country, to make full use ofthe adhesive coefficient in braking, we divided the entire proceeding ofretarding into several period5, in which the best average adhesive coeffi-cient is worked out, then, this braking force can be forlnulated,Besides,by setting up related non-adhesion braking force which may be added,themathematics model of the train has been built,we have made some simu-lated computations of brake proceeding by means of this mode, and ana-lysed the consequence。