The structure,main specifications,the supersonic detection evaluation and test results of the supersonic detection device for the hollow axle with the diameter of 40 mm are described.

In this paper,by using finite element method,important parameters of newtype hollow axle used on high speed train with max speed 250 km/h is analyzed,optimal magnitude of interference on pressure mounting of wheelset and proper aperture size of alxe is determimed.

Accidental damages may occur on the surface of hollow axles of high-speed railway vehicles in running and this may induce surface cracks.

This paper simulates the metal forging process of new hollow-axles by using DEFORM-3D finite element method, researches the influences of technological parameters on the metal forming process of the hollow-axles, and based on researching the distribution of stress and strain, analyzes the processing deformation law and mechanism.

Based on hot simulation tests of 50 steel,this paper presents a process programmer for forging hollow-axle on the precise horizontal radial forging,against the new hollow-axles used by the quick-speed railway.

Probing the diagnosis system of high speed locomotive driving gear;

The article has analysesed and studied coat defect during test runing of high speed locomotive.

The measures reducing the resistance of high speed locomotive while running at high speed are given.

Design analysis and calculation of high－speed locomotive driver＇s cab;

Topology optimization simulation of framework for high-speed locomotive

Semi-active lateral vibration control of a high-speed locomotive based on MR damper