Bent frame with plane arrangement is considered as the most commom method in practical design based upon the study of hinge joint frame design in monolayer workshop,however,author points out that space influence to side-move distortion and reinforcing of frame pole is more accordant with practical condition.

The results analyzing the rtuss as rigid joint or hinge joint in theory are indicated that the tube truss in practice is accordance well with the theoretical calculation as rigid joint or hinge joint,if axes joint of web members are at center of chord members.

Compared with the traditional rolling piston compressor,the new rolling piston compressor with a pinned blade has some advantages,such as compacted structure, less frictional power consumption and radial leakage.

The structural characteristics of a new rolling piston compressor with a pinned blade are presented.

A new sliding vane compressor with a pinned rotary cylinder is presented.

Described are the design scheme,key technology and testing for bogie frames in development of the articulated high speed passenger cars.

In this paper,the ligntening design idea of the steel structure of the articulated passenger carbody and the optimized design process are introduced.

To enlarge the application range of traditional Planar four-bar mechanism and enrich the structure form,replace the four bars with eccentricity components and replace hinge connections with revolute joints completely to form a new kind of four-bar mechanism with all elements being eccentricity components,i.