Research Based On Soft-Shelled Turtle Shell Bioiogical Modelling And Design Of Derived Surface

The modern reverse-engineering technology is an important branch of advanced manufactural technology, is the renewal important way of modern technology. The structure biological modelling design of taking the organic texture as a object of study is the creative and important design method spported by the method and the theory of reverse-engineering technology. Therefore there is the important guiding sense to manufactured products' research and development as well as the innovative design because of the research to the biological modelling design.In This paper ,taked the common biological shell (soft-shelled turtle shell) as the object of study, discussed its geometry characteristic and mechanics characteristic, because the primitive biological modelling surface belongs to the complicated shape free surface to realize the precise manufacture with difficulty, therefore,to study one kind of derivation surface which inherited the geometry characteristic and mechanics characteristic of the soft-shelled turtle,could be manufactured precisely with the modern methods.Specific tasks are as follows:(1) Used the Pro/E software for the platform to build the shell surface model, analyze the shape of the bone section included in the shell and the arranged forms of ribs,construct the free surface model with Strengthening gluten.(2)Made an in-depth discussion for data exchange between Pro / E and Matlab constructed the derived surface with the line occurred came from the shell.(3)Gave the finite element analysis of the reconstructed free surface, derived surfaces, derived surfaces within the additional strong gluten from the mechanical aspects of the bearing capacity using Pro/Mechanica module.(4)Discussed the advantages and disadvantages of the derived surface in the processing and used Pro/NC module to simulate the tool path generated in the derived surface.