Dispensing Path Calculation for Flowable Sealant Gaps
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Solution Overview
Problem
Current methods for determining the shape of a dispensing path and local application amount of a flowable filling material between two components are inefficient, requiring high computational effort and relying on empirical values or time-consuming test series, especially when dealing with three-dimensional deformations.
Innovation Solution
A numerical calculation method that iteratively calculates the deformation of the filling material in the cross-sectional area between two surfaces, using formulas to determine local velocity and displacement, allowing for precise calculation of the dispensing path and local application amount with reduced computational effort, optimizing parameters such as material coverage, process time, and pressing force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If three-dimensional deformation calculation methods are used to determine dispensing path and application amount, then calculation precision is improved, but computational effort increases significantly
Solution Approach 1:
The patent segments the three-dimensional deformation calculation into two independent parts: (1) calculation of the cross-sectional area deformation in the plane parallel to the surfaces, and (2) calculation of the gap reduction in the perpendicular direction. This segmentation allows the complex 3D problem to be solved as separate 2D and 1D problems, significantly reducing computational effort while maintaining sufficient precision for the dispensing path determination.
Solution Approach 2:
The patent extracts and focuses only on the essential deformation characteristics needed for determining the dispensing path - specifically the cross-sectional area changes in the plane parallel to the surfaces. By taking out only the relevant deformation information and ignoring less critical three-dimensional details, the calculation achieves adequate precision with much lower computational effort.
2Ease of manufacture
If empirical values and test series are used to determine dispensing path and application amount, then manufacturing simplicity is improved, but production time increases
Solution Approach 1:
The patent performs preliminary calculation of the dispensing path and application amount using the numerical method before actual production. By determining the optimal parameters in advance through computation rather than through time-consuming test series, the method eliminates the need for iterative empirical testing while maintaining manufacturing simplicity.
Solution Approach 2:
The patent replaces the empirical trial-and-error mechanical testing process with a numerical calculation system. Instead of physically testing different dispensing paths and measuring results, the system uses computational models to predict the optimal parameters directly, substituting physical experimentation with mathematical calculation.
Data Source
AI summary
A method for determining the shape of a dispensing path and a local application amount of a flowable filling material along the dispensing path between the surfaces of two components, wherein the filling material is used to seal a gap between the two components. In the method, the filling material is applied to the first surface of the first component, that the two surfaces are subsequently moved towards each other so that, when the gap between the two surfaces is reduced, the filling material is squeezed, while increasing its cross-sectional surface extending in parallel between the two surfaces, until the desired gap is achieved.