Designing and making a liquid plastics locking mechanism involves a key problem of selecting a reasonable wall-thickness of the elastic sleeve.

In this paper,the lifting and folding mechanisms of a large array antenna for a mobile radar are introduced,with emphasis on the principle and structure design of the folding mechanism which uses hydraulic cylinder as its drive,the lifting mechanism which is made up of rolling linear guide and hydraulic cylinders,and the locking mechanism which is made up of screw-mechanism and friction flake.

Shaking table test on ship lifts model with roof MR damper isolation system;

By dynamic test on an advanced large shaking table and three dimensional finite ele-ment calculation for shiplifter tower structure of the Three Gorge project, not only the dynam-ic characteristics of shiplifter tower structure, such as natural frequency, vibration shape anddamping ratio, but aIso the seismic responses of shiplifter tower structure to the designearthquake have been investigated.