Discussion on calculation of unbalanced cutting power distribution in the design of sluice bottom board structure;

Combined with practical work,three calculation methods-elastic groundsill beam method,inverted beam method and shearing force balance method of under-pole bar base are elaborated and analysed comparatively,which showed the importance of calculation method selection.

Through combining the actual condition of the piping layout of offshore platform and calculating the unbalance force caused by pulse,it confirms the method is the best.

Unbalance forces of the engine is the main reason for vibration of motorcycles.

On unbalanced forces in 3D elasto-plastic FEM analysis;

Under the action of a given load the area where unbalanced force area existed is the location of initial failure occurred.

The main ingredient of the theory is that the unbalanced forces of a deformable body in elasto-plastic elaborated.

Based on the concept of constraint-equilibrium in non-equilibrium thermodynamics, deformation reinforcement theory,which analyzes the mechanical behaviors of unstable structure with unbalanced forces exceeding the yield surface,is presented.

It points out that under the given external loads,the area which comes to unbalanced forces is the first place to be destroyed in the structure.