Based on such problems as cracking and breaking of walking beam in running,a type of resistance measuring technology is used to make static and dynamic stress measurement for leading components such as walking beam and rear horsehead,and the results show that the walking beam is subjected to a tensile stress by driving holes.

The shape of d vs sin 2 ψ curve with stress gradient near the beryllium surface is studied under the modified ψ diffraction geometry condition, and the effect of stress gradient near the beryllium surface on the conventional x ray stress measurement is determined.

At first, the structure design and 3D model work of high pressure fuel supply pipe was completed by Pro E and laid out on the engine, then ANSYS was used for FEA modal analysis, at last the engine performance test, the pipe operating stress measurement and engine endurance test were done on the engine.

Non-interstices design of super long tall RC building and stress test analysis of Shenzhen Tian Digital Mansion;

The paper expounds how to do the dynamic stress test and stress analysis to remove the potential troubles by finite element method.

In order to assure the drilling and workover safely,the author applied the stress testing method according to its actual use, found its dangerous working condition and its dangerous point,and provided the good resolution to the d.