According to the structure of wheat,the framework modeling was employed to build the wheat model,the change of position and direction under influence of wind power based on the physical model was calculated,and then key frame technology was adopted for the establishment of wheat dynamic model based on Virtual Reality Modeling Language(VRML).

3D visualization of corn root system based on interactive framework model;

Development of single-channel sandbody framework model by integrating seismic inversion and well data;

Design and Application of a Gear Transmission Based on Framework Model;

Design of the Mobility Scooter Based on Skeleton Model in Pro/E;

After Introducing key technologies of top-down assembly modeling of mechanical products based on parametric technology,a new method for assembly modeling is put forward by taking skeleton model as bridge in top-down assembly modeling design,and a practical scheme of assembly modeling for complex products ancler concurrent design is given.

We put forward the design of cane sugar harvester skeleton model which solved the problems of various module,difficult layout and high requirement of position relation, locomation and dynamical of each child function module.