Based on the constitutive theory of thermoelasticity , the theory of conduction of heat in solids and the three-dimensional equal parameter element method.
By CAD, based on diagrammatize principle, the dimensions of every parts in cracker rocker mechanism under different conditions are determined, and design demands are satisfied.
The results show that the failure is mainly attributed to the inappropriate heat-treatment technology of the locking nut and the hydrogen brittlement from electroplating of the stopping pad.
Abstract: That the painting on stone or brick in Han dynasty existed a lot in the burgrave tomb in Han, which possessed twoness of buiilding materials and art works.