Acoustics in building;
Airborne Sound Insulation;
Prediction;
D O I:
10.1260/135101008786939955
中图分类号:
O42 [声学];
学科分类号:
070206 ;
082403 ;
摘要:
The growing introduction of new insulation materials in building acoustics has caused an increase of the importance of the prediction tools. Appropriate simulations allow strictly necessary laboratory measurements to be identified. In this way, costs are reduced. The demands of new legislation has resulted in the appearance of various software designed to facilitate prediction. The prediction models are based on different hypotheses: adaptation of impedances, spatial behaviour of spectral components, statistical energy distribution, the Finite Element Method (FEM), etc. Each of these models and methods offer advantages and contain limitations. In this paper, different models for prediction of sound insulation of multi-layer systems, are analysed. A method, based on adaptation of impedances is considered, and the results are compared with those obtained from FEM and also from experimental results. Adjustments are proposed to the models, to improve the prediction in certain frequency ranges.
机构:
College of Marine Engineering, Northwestern Polytechnical University, Post Box 58, Xi'an, 710072, ChinaCollege of Marine Engineering, Northwestern Polytechnical University, Post Box 58, Xi'an, 710072, China
Zeng, Xiangyang
Sun, Jincai
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机构:
College of Marine Engineering, Northwestern Polytechnical University, Post Box 58, Xi'an, 710072, ChinaCollege of Marine Engineering, Northwestern Polytechnical University, Post Box 58, Xi'an, 710072, China
Sun, Jincai
Chen, Ke'An
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机构:
College of Marine Engineering, Northwestern Polytechnical University, Post Box 58, Xi'an, 710072, ChinaCollege of Marine Engineering, Northwestern Polytechnical University, Post Box 58, Xi'an, 710072, China
机构:
Tshwane Univ Technol, Fac Engn & Built Environm, Dept Mech & Mechatron Engn, ZA-0001 Pretoria, South AfricaTshwane Univ Technol, Fac Engn & Built Environm, Dept Mech & Mechatron Engn, ZA-0001 Pretoria, South Africa
Dunne, Regan
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机构:
Desai, Dawood
Heyns, Stephan
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机构:
Univ Pretoria, Fac Engn Built Environm & IT, Dept Mech & Aeronaut Engn, ZA-0001 Pretoria, South AfricaTshwane Univ Technol, Fac Engn & Built Environm, Dept Mech & Mechatron Engn, ZA-0001 Pretoria, South Africa
机构:
Tokyo Inst Technol, Dept Mat Sci & Engn, Sch Mat & Chem Technol, Meguro Ku, 2-12-1 Ookayama, Tokyo 528550, JapanTokyo Inst Technol, Dept Mat Sci & Engn, Sch Mat & Chem Technol, Meguro Ku, 2-12-1 Ookayama, Tokyo 528550, Japan
Akasaka, Shuichi
Kato, Takahisa
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Tokyo Inst Technol, Dept Mat Sci & Engn, Sch Mat & Chem Technol, Meguro Ku, 2-12-1 Ookayama, Tokyo 528550, JapanTokyo Inst Technol, Dept Mat Sci & Engn, Sch Mat & Chem Technol, Meguro Ku, 2-12-1 Ookayama, Tokyo 528550, Japan
Kato, Takahisa
Azuma, Keisuke
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Tokyo Inst Technol, Dept Mat Sci & Engn, Sch Mat & Chem Technol, Meguro Ku, 2-12-1 Ookayama, Tokyo 528550, JapanTokyo Inst Technol, Dept Mat Sci & Engn, Sch Mat & Chem Technol, Meguro Ku, 2-12-1 Ookayama, Tokyo 528550, Japan
Azuma, Keisuke
Konosu, Yuichi
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Tokyo Inst Technol, Dept Mat Sci & Engn, Sch Mat & Chem Technol, Meguro Ku, 2-12-1 Ookayama, Tokyo 528550, JapanTokyo Inst Technol, Dept Mat Sci & Engn, Sch Mat & Chem Technol, Meguro Ku, 2-12-1 Ookayama, Tokyo 528550, Japan
Konosu, Yuichi
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Matsumoto, Hidetoshi
Asai, Shigeo
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Tokyo Inst Technol, Dept Mat Sci & Engn, Sch Mat & Chem Technol, Meguro Ku, 2-12-1 Ookayama, Tokyo 528550, JapanTokyo Inst Technol, Dept Mat Sci & Engn, Sch Mat & Chem Technol, Meguro Ku, 2-12-1 Ookayama, Tokyo 528550, Japan