Shape Optimization for Steel-Sheet Structures
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Solution Overview
Problem
Existing shape optimization technologies face difficulties in applying optimization methods to steel-sheet structures, particularly in accurately reflecting optimal shapes calculated using three-dimensional elements onto these structures, due to challenges in defining design spaces and coupling optimization block models with steel-sheet structures.
Innovation Solution
A shape optimization analyzing method and apparatus that defines a design space within a structure model, generates an optimization block model using three-dimensional elements like pentahedrons, hexahedrons, or heptahedrons, and couples it with the structure model to perform numerical analysis and calculate an optimal shape, ensuring accurate load transmission and reflection of results on steel-sheet structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If topology optimization is applied to steel-sheet structures, then weight reduction and rigidity enhancement are achieved, but difficulty in defining design space and coupling optimization block models with steel-sheet structures prevents effective application
Solution Approach 1:
The patent divides the steel-sheet structure into discrete elements (plane elements) and creates a design space by selecting specific elements. The optimization block model is then coupled with the structure model through defined interfaces, enabling targeted optimization of specific portions without requiring optimization of the entire structure. This segmentation approach simplifies the complexity of applying topology optimization to steel-sheet structures.
2Manufacturing precision
If optimal shape is calculated using three-dimensional elements, then accurate optimization results are obtained, but difficulty in reflecting the optimal shape onto steel-sheet structure prevents practical application
Solution Approach 1:
The patent introduces an intermediary conversion process that translates the optimal shape results obtained from three-dimensional element analysis into modifications applicable to plane elements representing steel sheets. The system converts the volumetric optimization results into surface-level design modifications, enabling the accurate optimal shape to be practically reflected on the steel-sheet structure through a systematic translation process.
Data Source
AI summary
Shape optimization analyzing methods according to aspects of the present invention are analysis methods for optimizing part of a structure model using plane elements or three-dimensional elements. The methods include a design-space defining step of defining a portion of the structure model that is to be optimized as a design space, an optimization-block-model generating step of generating an optimization block model in the defined design space, the optimization block model being formed of three-dimensional elements and analyzed for optimization, a coupling step of coupling the generated optimization block model with the structure model, and an analyzing step of performing analysis in accordance with input of an analytic condition to calculate an optimal shape of the optimization block model.