In order to study the change of inner diameter of combination die for cold extrusion of spline when it is pushed into shrinkage ring, the relation curves between the moved distance along axis and the change of inner diameter of combination die was obtained through experimental method.

Because of the output macro energy,justified working condition and high capacity utilization,a constant pressure variable capacity pump system becomes prime dynamic resource.

Experimental investigation on the energy Absorption characteristic of braided composite circular tubes subjected to quasi-static axial compression;

Simple analysis on crack of axial compression of some prestressed concrete;

This paper presents a theoretical analysis about the propagation rule of the micro-crack in brittle materials under axial compression,based on the energy release rate criterion.

Plastic deformation and strengthened phenomenon of some areas of circular saw exerted axial pressure on;

Experimental research on wave velocity under axial pressure;

This paper carried out the analysis and testing of axial pressure distribution of V seal in theoretically and experimentally,and explored two problems in the failure and the ring number of V seal through distribution curves of the axial pressure.