This paper provides a computer program which is used to account the pressure change inside of the train which is isolated each other based on the flow rate coming in and out of sealed car,and simulates the inside pressure changes of trains with the.

Friction and wear properties of carbon/carbon(C/C) composites with a smooth laminar(SL) pyrolytic carbon texture and a rough laminar(RL) pyrolytic carbon texture at different braking pressures were investigated with a home-made laboratory scale dynamometer.