Comparison of measurement uncertainty of sound insulation between the sound pressure method and sound intensity method

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Journal of Vibration and Shock ›› 2018, Vol. 37 ›› Issue (8) : 42-46.

CAI Yangsheng1, 2,ZHAO Yuezhe2

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Abstract

According to the standard deviation given by ISO 129991 and GB / T 31004.1—2014 , the measurement uncertainty of the sound pressure method and the sound intensity method in the normal frequency range (100-5 000 Hz) and the extended lowfrequency range (50-5 000 Hz) were calculated with the approach determining the singlenumber quantity and its measurement uncertainty. The results show that the uncertainty of the sound intensity method in the normal frequency range is less than the sound pressure method, and less more evidently with the extended low frequency range, which means that the sound intensity method has better low frequency measurement robustness, and consistent with previous experiments results. Finally, comparing the measurement uncertainty of two building elements, the results show the elements with poor lowfrequency sound insulation will produce higher uncertainty.

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airborne sound insulation / measurement uncertainty / sound pressure / sound intensity

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CAI Yangsheng1, 2,ZHAO Yuezhe2. Comparison of measurement uncertainty of sound insulation between the sound pressure method and sound intensity method[J]. Journal of Vibration and Shock, 2018, 37(8): 42-46

References

[1] GB/T 50121-2005.建筑隔声评价标准[S]. 北京：中国标准出版社，2005.
GB/T 50121-2005. Rating standard of sound insulation in buildings [S]. Beijing: Standards Press of China, 2005.
[2] GB/T 50378-2014.绿色建筑评价标准[S]. 北京：中国建筑工业出版社，2014.
GB/T 50378-2014.Evaluation standard for green building [S]. China Architecture&Building Press, 2014.
[3] GB/T 19889.3-2005.声学-建筑和建筑构件隔声测量-第3部分：建筑构件空气声隔声的实验室测量[S].2005.
GB/T 19889.3-2005.Accoustics—Measurement of sound insulation in buildings and of building elements—Part 3:Laboratory measurements of airborne sound insulation of building elements [S]. Beijing: Standards Press of China, 2005.
[4] 俞鹏, 翟国庆, 黄逸凡，等. 城市居住区设备噪声频率特性分析[J]. 中国环境科学, 2006, 26(4): 491-495.
YU Peng, DI Guo-qing, HUANGYi-fan, etc. The analysis of noise frequency characters of facilities in urban residential area [J]. China Environmental Science, 2006, 26(4): 491-495.
[5] Bravo T, Elliott S J. Variability of low frequency sound transmission measurements[J]. The Journal of the Acoustical Society of America, 2004, 115(6): 2986-2997.
[6] Bravo T, Maury C. Enhancing low frequency sound transmission measurements using a synthesis method[J]. The Journal of the Acoustical Society of America, 2007, 122(2): 869-880.
[7] Hopkins C,Turner P.Field measurement of airborne sound insulation between rooms with non-diffuse sound fields at low frequencies[J]. Applied acoustics,2005,66(12): 1339-1382.
[8] Pedersen D B, Roland J, Raabe G, et al. Measurement of the low-frequency sound insulation of building components[J]. Acta Acustica united with Acustica,2000,86(3):495-505.
[9] Hongisto V,Lindgren M, and Keranen J. Enhancing maximum measurable sound reduction index using sound intensity method and strong receiving room absorption [J]. J. Acoust. Soc. Am. 2001, 109 (1):254-265.
[10] Machimbarrena M, Jacobsen F. Is there a systematic disagreement between intensity-based and pressure-based sound transmission loss measurements? [J]. Building Acoustics, 1999, 6(2): 101-111.
[11] 蔡阳生,赵越喆,吴硕贤,等.声压法和声强法测量建筑构件空气声隔声的比较[J]. 振动与冲击, 2013, 32(21): 65-68.
CAI Yang-sheng,ZHAO Yue-zhe,WU Shuo-xian,etc.Measurement of airborne sound insulation and the comparison between sound pressure and sound intensity method[J].Journal of Vibration and Shock, 2013, 32(21): 65-68.
[12] 钱中昌, 寇毅伟, 刘碧龙,等. 同一实验室条件下不同隔声测量方法的探讨[J]. 声学技术, 2013(6):495-499.
QIAN Zhong-chang,KOU Yi-wei, LIU Bi-long,etc. Two methods for sound insulation measurement in same laboratory condition[J].Technical Acoustics, 2013(6):495-499.
[13] ISO 140-2.Acoustics -- Measurement of sound insulation in buildings and of building elements -- Part 2: Determination, verification and application of precision data [S]. Geneva: International Organization for Standardization,1991.
[14] ISO 717-1.Acoustics -- Rating of sound insulation in buildings and of building elements -- Part 1: Airborne sound insulation [S]. Geneva: International Organization for Standardization, 2013.
[15] Goydke H, Siebert B R L, Scholl W. Considerations on the evaluation of uncertainty values of building acoustic single number quantities[C]. Proceedings of Euronoise, Naples, 2003.
[16] Wittstock V. On the uncertainty of single-number quantities for rating airborne sound insulation[J]. Acta Acustica united with Acustica, 2007, 93(3): 375-386.
[17] ISO 12999-1.Acoustics -- Determination and application of measurement uncertainties in building acoustics -- Part 1: Sound insulation [S]. Geneva: International Organization for Standardization,2014.
[18] Mahn J, Pearse J. The uncertainty of the proposed single number ratings for airborne sound insulation[J]. Building Acoustics, 2012, 19(3): 145-172.
[19] Garg N, Kumar A, Maji S. Measurement uncertainty in airborne sound insulation and single-number quantities: Strategy and implementation in Indian scenario[J]. MAPAN, 2016, 31(1): 43-55.
[20] Garg N, Gandhi L, Kumar A, et al. Measurement uncertainty in airborne sound insulation and single-number quantities using sound pressure and sound intensity approached[J]. Noise Control Engineering Journal, 2016, 64(2): 153-169.
[21] GB/T 31004.1-2014.声学建筑和建筑构件隔声声强法测量第1部分：实验室测量[S].北京,中国标准出版社，2014.
GB/T 31004.1-2014. Acoustics—Measurement of sound insulation in buildings and of building elements using sound intensity—Part 1:Laboratory measurements [S]. Beijing: Standards Press of China, 2014.