Finite Element Model Property Data Linking via Positioning Identifiers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The design of complex units like aircrafts using finite-element models is hindered by the need to recreate property data with each change in granularity, due to property data being directly linked to the model's elements, resulting in voluminous data handling and human intervention constraints, which delays the design process.
Innovation Solution
A method and device that allow property data to be independent of the finite-element model's granularity by using positioning identifiers to link and modify property data, enabling their preservation and updating through a rule of correspondence, facilitating flexible and fast creation of finite-element models.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If property data are directly linked with elements of the finite-element model, then the property data can be easily associated with the model structure, but the property data become dependant on the granularity of the finite-element model, requiring complete recreation with each granularity change
Solution Approach 1:
The patent introduces a positioning identifier as an intermediary element that links property data to the finite-element model indirectly. Instead of directly associating property data with model elements, the positioning identifier serves as a mediator that references the geometric entity's position, allowing property data to remain independent of model granularity while maintaining accurate association through coordinate-based positioning.
2Manufacturing precision
If the granularity of the finite-element model is increased to improve modeling precision, then the model can represent complex geometries more accurately, but the volume of property data that must be handled increases significantly
Solution Approach 1:
The patent uses positioning identifiers that reference geometric entity positions rather than storing complete property data sets for each element. This copying approach allows the same positioning identifier to be reused across multiple elements at different granularity levels, significantly reducing the volume of property data required while maintaining modeling precision through the identifier's reference to the underlying geometric entity.
3Reliability
If property data are recreated with each iteration of the design process, then the property data can be adapted to the current model configuration, but important constraints and delays are encountered in the design process
Solution Approach 1:
The patent establishes positioning identifiers that are independent of model granularity during the preliminary design stages. By creating these identifiers based on geometric entity positions rather than specific model elements, the system allows property data to be prepared in advance and automatically associated with refined models later, eliminating the need for complete data recreation during iterative design processes while maintaining accuracy through the pre-established positioning references.
Data Source
AI summary
A finite-element model modeling a geometrical entity, is created by means of a computer in the following way At least one property data and at least a positioning identifier are acquired by means of an interface of the computer in order to store these in a memory of the computer. The positioning identifier allows identifying a position of the property data on the geometrical entity. A correspondence is established between the positioning identifier and at least an element of the finite-element model. Preferably, the property data is linked with the element of the finite-element model for which a correspondence with the positioning identifier of the property data was established.