Then We discussed the influence of rigidity of joints on the status of position of the end of manipulator and system frequency of 5R Robot.

In this paper,through the analysis of interaction between explosion stress waves and the pre splitting crack whose interface strength is described with joint stiffness,and in consideration of the enclosure of crack caused by the incidence of stress waves under the condition that the crack is filled with water.

The influence of joint stiffness on the stability of geodesic single-layered reticulated shells with initial imperfection;

The effect of joint stiffness on mechanical behaviors of steel frames;

Stability behavior of joint stiffness on the single-layer reticulated shell of badminton arena for 2008 Olympic Games;

According to codes in GB the classification of the rigidity of joints is introduced.

This author also presents the failure phenomenon of rigidity of joint.

Based on classic elastic stability theory of framework,the four-moment equation and the stability equations of member group considering joint rigidity are derived and extended to study trusses.

The bracing setting and connecting ways determine the joint rigidity.

Taking long span suspension bridge as an example,theinfluence of joint rigidity of suspension bridge with steel truss stiffening girder on completed bridge working points are studied.