Research Article
Interior Noise Prediction of the Automobile Based on Hybrid FE-SEA Method
Table 3
Structural loss factors of some common used materials.
| Material | Structural loss factor |
| Steel | 3 × 10−4 | Glass | 1 × 10−3 | Engineering plastics | 0.3 | Aluminum | 1 × 10−4 | Brass | 2 × 10−3 | Cast iron | 1 × 10−3 | Plywood | 1.5 × 10−2 | PVC | 0.3 |
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