Blade Design Method Using Optimization Curves for Impeller Efficiency
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Solution Overview
Problem
The design of efficient fans faces challenges due to low design efficiency, requiring strong theoretical support and extensive verification of test data, which complicates the process.
Innovation Solution
A blade design method that determines the chord length, camber, and height of blades using target design parameters such as impeller diameter and number of blades, employing a fitting optimization curve to optimize blade camber and improve design efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional design methods are used to design fan blades, then the design can be performed with basic tools, but the design efficiency is low and requires extensive verification of test data
Solution Approach 1:
The patent applies parameter changes by establishing quantitative relationships between blade parameters (chord length, camber, height) and impeller parameters (diameter, number of blades). By transforming the design process into parameter calculation based on formulas and optimization curves, the method eliminates the need for extensive trial-and-error testing while maintaining design efficiency and accuracy.
Solution Approach 2:
The patent replaces traditional mechanical trial-and-error design with a mathematical modeling approach. By using optimization curves and calculation formulas, the design process is substituted from physical experimentation to mathematical computation, significantly reducing the verification steps required while improving design efficiency.
2Reliability
If extensive verification of test data is performed to ensure design meets working conditions, then the design reliability is improved, but the design process becomes more complex and time-consuming
Solution Approach 1:
The patent applies preliminary action by pre-establishing optimization curves and calculation formulas that encapsulate the results of extensive testing. These pre-computed relationships allow designers to directly obtain reliable blade parameters without performing time-consuming verification tests during the actual design process, thus reducing design time while maintaining reliability.
Solution Approach 2:
The patent uses copying by creating mathematical models and optimization curves that replicate the results of extensive physical testing. Instead of repeatedly performing physical tests, the method copies the essential relationships through mathematical formulations, providing reliable design data much faster.
3Productivity
If the design process is simplified to improve design efficiency, then the design time is reduced, but the design precision may be compromised
Solution Approach 1:
The patent maintains manufacturing precision by using mathematically rigorous parameter relationships. The optimization curves and calculation formulas are derived from systematic analysis, ensuring that the simplified design process produces precise blade parameters (chord length, camber, height) that meet working conditions without sacrificing accuracy.
Data Source
AI summary
Disclosed are a blade design method, a blade design system, a blade, and an efficient equal-thickness impeller. The blade design method comprises: obtaining target design parameters comprising a diameter of an impeller and the number of blades; determining a chord length of the blade according to the diameter of the impeller; according to the chord length of the blade, determining a camber of the blade corresponding to the chord length of the blade by means of a fitting optimization curve of the chord length and the camber; determining a height of the blade according to the diameter of the impeller and the number of blades; and obtaining an element of the blade according to the camber of the blade, and stretching a height of a corresponding position of the element of the blade to the height of the blade to obtain a target blade structure.