Considering the flexible effect of the harmonic retarders,the style of dynamic constraint of the flexible beam during control was analyzed;then,the modal frequency and vibration shapes related to the control parameters and hamonic retarder s rigidity parameter were obtained.

This paper constructs the fuzzy-valued dynamic constraint concept networks on the theoretical basis of the fuzzy sets and the semantic networks,introduces the basic construction method of this concept network,and puts forward the text analysis algorithm based on the concept network.

On the theoretical basis of the neural networks and the semantic networks,this article constructs the dynamic constraint concept networks,introduces its characteristic of constraint,dynamic and inheritance,and puts forward the model of knowledge retrieval based on the concept networks and the heuristic dynamic retrieval algorithm.

The dynamic constraints including voltages,frequency are involved in this model ensuring to obtain the maximum quantity of meeting the dynamic stability.

The existing methods are inefficient on complex problem with multi-graph and dynamic constraints.

To avoid the super elasticity,a dynamic constraint method was proposed to restrict the tensile length of springs;and based on the constrained cloth model,a bounding sphere hierarchy(BSH) without updating was constructed for self-collision detection.