A comparision between the solid cylinder which is surrounded by the elastic isotopy stratum and the acoustic waves filed which is stimulated by a point source in the liquid cylinder is made in the paper.

By using Biot s wave theory about two phase medium, the Fourier - Bessel inte- gral solution of accoustic wave field excited by a point souroe in a solid cylinder surrounded by two pbase medium is obtained strictly.

Compare and Analyse of Unit Deforming Force and Boundary Conditions in Model Element of Cylinder Upsetting;

Analysis for Temperature field of upset cylinder in quenching process by FEM;

Study on Evaluation of Cylinder Geometric Parameters in Reverse Engineering;

Research of non-resin winding cylinder preforming retracing cosine curve;

On the base of the research of the non-resin winding cylinder preforming technique,particular arithmetic used to develop the computer software was indicated.

In this dissertation, the technology of cylinder non-resin winding preforming was put forward and studied comprehensively and systematically.

The nonlocal friction law proposed by oden et al is adopted in order to consider the nonlocal friction effect of the asperities on the stress distribution about superplastic wire extrusion of cylindrical body through a cone-shaped die.