Based on the principle of the rectangular prismy vibration and buckling deformation, an ultrasonic motor with a stator and several rotors is manufactured successfully.

Cause Analysis of Tinplate Warp and Our Countermeasures;

Investigation on warp and curl in selective laser sintering polymeric materials;

Solving the Problem of Warping in the Injection Moulding Parts through Computer-Aided-Engineering Technology;

An integrated simulation of residual stress and warpage for plastic injection molding;

Analysis of Warpage of Thin-walled Plastic Parts by CAE;

Nonlinear finite element analysis on electronic chip package warpage;

Analysis of warping transmission through diagonally stiffened beam-to-column joints;

Influence of warping on dynamic characteristics of unsymmetrical hull;

The application and development of Moldflow in injection molding are introduced briefly,then by using of Mold Flow Plastic(MPI),taking common bar code scanner as an example,we stimulate and analyze the process of flowing and warping,and forecast the possible existing position of weld lines and the warp deflection.

Application of Moldflow technology in buckling analysis of plastic part;

Analysis of buckling in push-sinking and lts lnfluence factor;

But buckling of GLM pixels seriously degrades its performance.

Analysis on the factors of influence on head end curl of plate and sheet in rolling by cross experiment;

The factors affecting end curl of plate and sheet in rolling process were researched by the cross experiment,which include the upper roll diameter,the lower roll diameter,reduction,angle of entrance and velocity of roll rotation.

The asymmetrical mechamism during the asymmetrical rolling was analyzed using the model,and the effects of roller speed ratio and surface temperature difference on the head end curling of plate were investigated for the different rolling technologies,and setting roller speed rat.