一种碳纤维布表面声阻抗的精准计算方法及系统
By using a five-step process and analytical formula to calculate the surface acoustic impedance of carbon fiber cloth, the problems of material property adaptation, complex configuration modeling, and multi-physics coupling are solved, achieving high-precision and high-efficiency acoustic impedance calculation, which is applicable to single-layer to multi-layer carbon fiber cloth.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA AERODYNAMIC RES & DEV CENT EQUIP DESIGN & TESTING TECH INST
- Filing Date
- 2026-05-26
- Publication Date
- 2026-07-17
AI Technical Summary
Existing methods for calculating the surface acoustic impedance of carbon fiber cloth suffer from problems such as insufficient material property adaptation, difficulty in modeling complex configurations, lack of multi-physics coupling, and low computational efficiency, which cannot meet the high precision and high efficiency requirements of fields such as aerospace and new energy vehicles.
A five-step standard process is provided, which includes obtaining the basic parameters of carbon fiber cloth, calculating the anisotropy correction coefficient and equivalent weaving density, calculating the acoustic impedance and acoustic impedance respectively, and synthesizing the complex form of surface acoustic impedance. The process is directly calculated using analytical formulas, taking into account the multi-physics coupling effect, and is applicable to single-layer and multi-layer carbon fiber cloths.
It improves the calculation accuracy to within 6%, expands the applicable range to single-layer to multi-layer (≤6 layers) carbon fiber cloth, and the calculation time is less than 0.1 seconds, meeting the rapid iteration needs of engineering design.
Smart Images
Figure CN122262467B_ABST