Abstract:

Drag reduction mechanism of the sharkskin is closely related to its real geometric structure. Owing to insufficient parametric design applied to bionic sharkskin modeling, a novel parametric modeling method is proposed to simulate the bionic structure based on the real denticle of sharkskin. The 3D denticle sample can be obtained by reconstructing the μCT data and parameter can be defined by analysing the morphology. Differential mesh deformation algorithm is used to establish the mesh editing system to design the morphologic structure of the denticle. Morphologic design can be realized based on the parameter of different part denticle of the sharkskin. The experiments present that the technical route is stable and reliable and non-distortion exist in the process of deformation design. Final results can reflect the real physical structure of different parts of the sharkskin.

Key words: mesh editing, parametric modeling, sharkskin denticle, bionics design