This paper describes the different forces of catenary inspection vehicle pantograph exerted by its forward and backward movement, which proves the influence of the forward and backward movement of pantograph on bow-net contact pressure.

The paper describes the composition, main functions and characteristics, key technologies and commissioning of dynamic OCS and pantograph real time video supervision system for OCS of electrified railways, illustrates its advantages in technology and application, It becomes a new technical supervising method for electrified railways.

Research on mixed dynamic simulation for the pantograph/catenary system;

Calculation of contact pressure on TM and VAMACE premium connection casing couplings;

The effect of articular step-off and neniscectomy on joint alignment and contact pressures for fractures of the lateral tibial plateau;

Single chip microcomputer-based inspection of catenaries-pantograph contact pressure;

Research on contacting pressure in ball-spinning;

A pin-on-disk test rig was used to investigate the influence of sliding speed and contacting pressure on the friction and wear behavior of 45CrNi pair under dry sliding condition.

The progressive cavity pump(PCP) distortions,forces and contacting instance of different pressure with the finite element analysis method are analyzed,the PCP two-dimension finite element model is constituted,the stress distributing correspond to the PCP stator rubber and the contacting pressure of the stator and rotor are obtained in this paper.