Free-form surface-based parametric modeling method of space grid structure

Abstract

The invention discloses a free-form surface-based parametric modeling method of a space grid structure. The technology specifically comprises the following steps of (1) building an initial free-form surface; (2) determining a space grid structure form and setting model control parameters of the space grid structure for controlling the number of structure nodes and a thickness change of the structure; (3) carrying out grid partition and grid uniformity optimization on the free-form surface according to the control parameters to obtain corresponding space nodes; and (4) carrying out logic grouping arrangement on the space nodes through a default algorithm and automatically connecting the nodes according to a certain rule to form a three-dimensional model of the space grid structure. According to the technology, a parameter-driven model change can be achieved, the parameters and the model are stored together, a new model can be built through simply changing model parameter values, parameterization of the model is achieved and the modeling efficiency and accuracy are greatly improved.

Description

technical field [0001] The invention belongs to the field of computer modeling of building structures, and in particular relates to a parametric modeling method of a space grid structure based on a free-form surface. [0002] technical background [0003] With the continuous development of architectural science and technology and computer technology, infinite possibilities have been created for breakthroughs in architectural shapes. Due to its unique architectural artistic expression and strong visual impact, the free-form surface of non-regular space is more and more favored by architects. This trend has also brought new breakthroughs and developments in architectural structures, resulting in free-form space grid structures. [0004] Although the free-form surface space grid structure meets the requirements of various architectural functions, it poses great challenges to the work of structural designers due to its nonlinear and irregular shape. On the one hand, designers o...

AI Technical Summary

Problems solved by technology

However, for free-form surfaces, traditional software is no longer applicable because their geometry cannot be accurately expressed or fitted by analytical functions; at the same time, for the spatial grid structure on free-form surfaces, the difficulty and cost of manual modeling are greatly increased, and the structure cannot be guaranteed. Therefore, it is necessary to carry out innovative research on the parametric modeling technology of space grid structure based on free-form surface

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