Abstract
Sections 1 and 2 of the full paper explains our effective model as mentioned in the title. Their core consists of: "In the model, the system equation for calculating the sound pressure of nodes is derived according to Galerkin weighted residual method. The shape functions are constructed with the moving least squares method and the methods for calculating the integrations are introduced in detail. Then, the acoustic transfer function and reverberation time of a rectangular enclosure are calculated with the model and compared with the results obtained by the theoretical method, SYSNOISE and measurements respectively. " Section 2 uses our model to calculate the sound field in an airplane cabin. The results, presented in Table 1 and Fig 8, and their analysis show preliminarily that the accuracy and the applicability of our method for arbitrarily shaped enclosures are validated.
| Original language | English |
|---|---|
| Pages (from-to) | 102-107 |
| Number of pages | 6 |
| Journal | Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University |
| Volume | 30 |
| Issue number | 1 |
| State | Published - Feb 2012 |
Keywords
- Aircraft
- Airplane cabin
- Analysis
- Boundary conditions
- Calculation of sound fields
- Calculations
- Computational geometry
- Computer software
- Efficiency
- Errors
- Finite difference method
- Finite element method
- Frequency domain analysis
- Functions
- Galerkin methods
- Integration
- Least squares approximation
- Meshless method
- Models
- Numerical methods
- Regression analysis
- Reverberation
- Scattering
- Schematic diagrams
- Small enclosure
- Stiffness matrix
- White noise