Crashworthy Energy Absorbing Car-body Design Method for Passenger Train

In order to reduce the losses suffered from collision between passenger trains, a new design method for the car body structure of motor car and trailer is advanced. Car body structures are made up of three parts with diffferent stiffness, by carefully designed. The parts of the front and the end are the weak stiffness structure to absorb energy through plastic deformation in the collision. The middle part, where only elastic deformation occurs, is an elastic deformation structure with strong stiffness. As the passenger train runs normally, car body structure measure up to regulation of intensity and stiffness in the standards. Once collision accident occurred when the train is moving with fairly high speed, the energy absorbing structure produces large plastic deformation along the direction needed to absorb sufficient energy, at the same time, the deceleration must be controlled within the endurable limits to human body.