Introduces two methods of transforming position and embedding water-pipes for improving the design of internal cooling water-pipes in the shearer ranging arm,solves the problem of chip cleaning after the shearer ranging arm has been machined.

Introduces a general program for milling the outside plate surface of electric motor hole for shearer ranging arm housing.

Mathematical modeling and optimization on rocker mechanism of automobile;

Failure Analysis of the Fractured Rocker in Distribution Equipment of Diesel Engine;

Study on Processing Technology of Batch Production of Aluminum Alloy Rocker with Ceramic Insert Block;

Virtual prototype of shearer ranging arm and its dynamics analysis;

Dangerous cross-section of shearer ranging arm is attained through theoretical analysis.

Study on design of machining equipment for rocker arm s deep hole;

Application of modern design techniques to aluminum die－ cast rocker arm with a ceramic insert for internal combustion engines;

The effects of technical parameters of laser surface alloying processing on the qualities of the alloyed layer of rocker arm used in motor were investigated with orthogonal test,and the factors and their levels were analyzed.