Finite Element Post-Processing Using Part Identifiers
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Solution Overview
Problem
Existing post-processing techniques for structural product data are time-consuming due to the need to standardize element and node numbering sequences, which depend on specific analysis types, making it inefficient to extract and evaluate results for component parts.
Innovation Solution
A generic post-processing technique that includes part identifiers for component parts in the computer model, allowing element identifiers to map and extract analysis results, facilitating quicker identification and processing of internal loads and deflections under external loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing post-processing techniques standardize element and node numbering sequences, then analysis results can be extracted and evaluated, but the process becomes time-consuming and inefficient
Solution Approach 1:
The patent applies preliminary action by incorporating part identifiers into the finite element model during the modeling phase, before analysis is performed. This pre-organization of data with part identifiers allows for direct extraction of results by part without requiring time-consuming post-analysis standardization of element and node numbering sequences.
Solution Approach 2:
The patent uses part identifiers as an intermediary between the finite element model and the post-processing system. These identifiers act as a mediator that enables direct mapping and extraction of analysis results for specific component parts without requiring standardization of the underlying element and node numbering schemes.
2Reliability
If existing techniques extract data for all elements to post-process component parts, then complete analysis results are obtained, but the process becomes inefficient due to processing unnecessary data
Solution Approach 1:
The patent applies the extraction principle by selectively extracting only the analysis results relevant to specific component parts identified by part identifiers. Instead of processing data for all elements in the model, the system extracts only the necessary subset of results, improving efficiency while maintaining reliability for the components of interest.
Solution Approach 2:
The patent implements local quality by applying different processing approaches to different parts of the model based on their part identifiers. Each component part can be individually identified and processed with appropriate attention, allowing focused analysis on specific regions or components without unnecessary processing of other areas.
3Productivity
If part identifiers are mapped to element identifiers for direct extraction, then post-processing speed increases, but the system complexity increases
Solution Approach 1:
The patent applies universality by designing a part identifier system that serves multiple functions: it identifies component parts, enables direct extraction of results, and provides a universal interface for post-processing across different analysis types. This multi-functional approach consolidates what would otherwise require multiple separate systems or procedures.
Data Source
AI summary
A method is provided for designing a structural product. The method includes accessing a finite element method (FEM) model in which the structural product is represented by a mesh of elements with respective nodal points and nodal datasets, indexed by element identifier, and including part identifiers of the component parts to which the elements belong. The method includes accessing results from a finite element analysis of the FEM model that indicate internal loads and deflections on the structural product under an external load. The results are also indexed by element identifier. A part identifier for a component part is identified; and element identifiers of the elements for the component part, and whose nodal datasets include the part identifier, are determined. The internal loads and deflections on the component part are extracted, and post-processed to determine an effect of the external load on the component part.