A Standing Wave-Duct System for Acoustical Property Prediction of Multi-Layered Noise Control Materials

Abstract:

Based on a hybrid transfer-matrix method, a new standing wave-duct system with four microphones for acoustical property prediction of multi-layered noise control materials is developed in this paper. In this system, the two-load method (TLM) and two-cavity method (TCM) are used for computing the transfer matrix of each material sample. The transfer matrices saved in a database in the system hardisk may be selected for predicting both the absorption ratio and transmission loss of a multi-layered treatment of materials. Verification results suggest that the newly designed standing wave-duct system is effective for acoustical prediction of multilayer material configurations.

• Periodical: Advanced Materials Research (Volumes 378-379)
• Pages: 27-30
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.378-379.27
• Online since: October 2011
• Authors: Yan Song Wang, Tao Zhang, Na Chen, Jie Lei
• Keywords: Acoustical Property Prediction, Hybrid Transfer-Matrix Method, Multi-Layered Materials, Noise Control, Standing Wave-Duct System

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