By means of the theory of fatigue accumulation and the method of fracture mechanics,Fatigue strength of key area of wing-in-ground-effect vehicles(WIG) is calculated with random collision loading when WIG land on water.

On bottom slamming load and strength requirement for Structures of Box Barges;

In this paper, two finite element models of plated grillages are built to calculate the transient dynamic response to slamming load of a high-speed ship.

Considering the buckling failure modes of ship deck,a method of assessing the reliability of ship structure under slamming load was proposed.

The effect of the encountered phase-angle between ship hull and incident wave and of design wave period on slamming loads at bow hull-bottom is considered in computation and analysis.

For this purpose,several assumption are pre-determined, including a close relationship between the average and stochastic loadsof a single pick.

On the foundation of the theory which is about the single pick's average load, analyzed loads's probability distribution and relevance when a single pick cuts various coal rock, on this basis, Utilizing the stochastic process theory ,set up the mathematical model about the single pick's stochastic loads.

Simulation study of random loads on a cutting head of roadheader;

Statistics analysis and simulation of random loads for bridges;

Model to realize the remote parameter control of random load;

Structural responses to random load and coherent scale;

Under the consideration of the random property of physical parameters of strucral material and its loads, computing expression of numerical feature of dynamic response is developed and a solving process of dynamic response analysis for structure with randion parameters under random loads is advanced.

Strength degradation model is applied for predicting shear fatigue life of asphalt mixture under random loading spectrum.