Based on the concrete S-N curve, a model of residual strength degradation is established in this paper, and then both the fatigue life and its reliability are modeled and analyzed by using this degradation model and the three-parameter Weibull distribution under spectrum loading.

Bench calibration of load spectrum measurement for fighter airplane main undercarriage;

Statistical analysis of vehicle random load spectrums;

Establish the equivalent life of components in vehicle by using of the load spectrum;

Preliminary research on fatigue growth behavior of the steel 980 welded joint under spectrum loading had been done.

Study has been carried out of the growth behaviour of short crack under spectrum loading.

Study of fatigue load spectrum for highway bridge;

Firstly,the fatigue load spectrum and fatigue load value are decided using the cumulative fatigue damage theory based on the transportation situation and programming traffic.

In order to estimate the fatigue damage accumulation of the connections between low layer rail across beams and welded integral joints connection of combined steel truss bridges under the traffic load,calculated method of fatigue load spectrum at the connection produced with the vehicle load in life-time of bridge design was analyzed.

Durability analysis technology and application when loading spectrum is altered;

A computer model for dealing with endurance/creep loading spectrum of aeroengine is presented.

Presents anew method on applying fractal theory to analyse loading spectrum of excavators, that is analysiy the fractal characteristic by discussion the fractal dimension in loading spectrum of excavaters digging force.