Design method of bionic spherical lattice structure for manually setting mechanical property distribution

Abstract

The invention belongs to the field of additive manufacturing advanced structural material design, and relates to a bionic spherical lattice structure design method for manually setting mechanical property distribution, which comprises the following steps of: designing a spherical cellular curved surface according to a lattice piling mode; designing a bionic multi-level topology segmentation network; performing Boolean segmentation on the spherical cells through a topological segmentation network; based on mechanical property distribution requirements and comparison of bionic multi-level spherical cells with different design parameters, dot matrix distribution of manually designed mechanical properties is achieved in a performance matching mode; and the material is formed and manufactured by using an additive manufacturing technology. On the basis of the complex structure forming and designing capacity provided by the additive manufacturing technology, the design method that cells of a spherical lattice structure are subjected to different stacking connection and bionic multi-level surface topology is provided, and the mechanical property of the cells and the material performance distribution requirement are compared and matched. The method for manually designing material mechanical property distribution through bionic multi-level topology spherical dot matrix cell combination is achieved.

Description

technical field [0001] The invention belongs to the field of advanced structural material design for additive manufacturing, and relates to a method of designing the surface topology structure of spherical cells through bionic multi-level, and based on the distribution requirements of mechanical properties and the way of comparing and matching the mechanical properties of cells determined by structural design parameters. The artificial combination and arrangement of spherical cells with different structural design parameters realizes a design method of artificially setting the distribution of mechanical properties and forming a bionic spherical lattice structure through additive manufacturing technology. Background technique [0002] Additive Manufacturing technology (Additive Manufacturing, AM) realizes the preparation of structures by accumulating layers of materials. This unique manufacturing method can realize the free "growth" forming of highly complex structures, great...

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Problems solved by technology

However, because the design methods of these studies depend on the change of the thickness of the spherical connector, and lack a general cellular connection design method, it has defects such as low flexibility in the combination of mechanical properties and difficult connection of the cellular structure, which eventually led to the traditional The limitations of design methods on the manual controllability of the distribution of mechanical properties of materials

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