Fan Logic Evaluation Device for Pressure-Flow Curve Matching
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Solution Overview
Problem
Conventional methods for designing fans lack an effective way to evaluate and adjust various parameters, leading to uncertainty in determining the key parameters affecting fan performance, necessitating multiple tests to achieve optimal design.
Innovation Solution
A method and device for continuously improving fan logic evaluation by using a wind tunnel with a measuring device and computer to compare estimated and measured pressure flow curves, allowing for iterative adjustments and refinements of parameter settings to closely match actual performance without physical prototypes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple physical fan samples are manufactured and tested in wind tunnel to determine optimal parameters, then design accuracy is improved, but development time and cost increase significantly
Solution Approach 1:
The patent creates a virtual copy of the fan system through 3D modeling and digital twin technology. The virtual fan model replicates the physical fan's geometric parameters, operating conditions, and performance characteristics, allowing evaluation without manufacturing physical prototypes. This copying approach enables multiple design iterations in virtual environment, significantly reducing development time while maintaining evaluation accuracy.
Solution Approach 2:
The patent performs preliminary evaluation of fan performance through virtual modeling and simulation before actual manufacturing. By pre-assessing different parameter combinations in the virtual environment, designers can identify optimal configurations ahead of time, avoiding the need to manufacture multiple physical samples for testing. This preliminary action eliminates wasted time and resources on suboptimal designs.
2Reliability
If multiple fan parameters are adjusted to meet design requirements, then fan performance is improved, but it becomes difficult to identify which parameter plays the key role
Solution Approach 1:
The patent implements a feedback mechanism where the virtual fan model continuously compares predicted performance with actual measured data from wind tunnel tests. The system automatically identifies discrepancies and provides feedback on which parameters have the greatest impact on performance deviations. This feedback loop enables designers to understand parameter sensitivity and prioritize adjustments on key parameters rather than making random modifications.
Solution Approach 2:
The patent replaces the trial-and-error mechanical adjustment process with a computational analysis system. Instead of physically adjusting multiple parameters and testing each combination, the system uses algorithms to analyze parameter sensitivity and identify key influencing factors. This substitution transforms the design process from mechanical experimentation to intelligent computational optimization.
3Adaptability or versatility
If designer adjusts fan parameters according to requirements and manufactures products for testing, then design flexibility is maintained, but manufacturing cost and complexity increase
Solution Approach 1:
The patent uses virtual copying to maintain design flexibility without physical manufacturing. Designers can freely adjust parameters in the digital model and immediately evaluate performance impacts, preserving adaptability while eliminating the need to manufacture test samples for each design iteration. The virtual copy enables unlimited design exploration at zero manufacturing cost.
Data Source
AI summary
A fan logic evaluation device and method thereof for improving the logic evaluation of a fan. Specifically, a fan logic evaluation device is provided by first installing a fan, which corresponds to a set of parameters, in a wind tunnel device. A computer then performs a logic evaluation to convert the set of parameters into an evaluated pressure-flow curve and a measured pressure-flow curve by measuring the fan's operating conditions with the wind tunnel device. The computer further performs a logic modification to correct the logic evaluation to obtain a logic evaluation modification. The logic evaluation is then replaced by the logic evaluation modification. Finally, the above process is repeated with the same fan or a different fan.