Methods of Testing of Sound Insulation Properties of Barriers Intended for High Frequency Noise and Ultrasonic Noise Protection

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Abstract

Two test stands for determining sound insulation in the frequency range above 5 kHz were made. One consisted of two horizontally adjacent reverberation rooms and a special source of high frequency sounds and ultrasounds. The other test stand consisted of a miniaturized test chamber and a special source of ultrasounds. The paper presents results of the preliminary measurements of sound insulation properties of different barriers in the frequency range above 5 kHz.

[1] M. Hlavatý, L. Starek, M. Musil, B. Hučko. Ultrasonic defect detection of structural plates using Quasi-Rayleigh waves. Journal of Mechanical EngineeringStrojnícky časopis 2017 (67), No. 2, 37 – 50.

[2] D. Augustyńska, M. Pośniak [Eds.]. Hazardous factors in working environment. Admissible values [in Polish]. Centralny Instytut Ochrony Pracy-Państwowy Instytut Badawczy, Warsaw, 2012.

[3] D. Augustyńska, W. M. Zawieska [Eds.]. Noise and vibration prevention in working environment [in Polish] Centralny Instytut Ochrony Pracy-Panstwowy Instytut Badawczy, Warsaw, 1999.

[4] B. Smagowska. Ultrasonic noise sources in a work environment. Archives of Acoustics 2013 (38), No. 2, 169 – 176.

[5] B. Smagowska, W. Mikulski. Ultrasonic noise at workstations with ultrasonic drills – occupational risk assessment, [in Polish]. Bezpeczeństwo Pracy-Nauka i Praktyka 2008, No. 10, 18 – 22.

[6] B. Smagowska. Ultrasonic noise at workstations with machinery and devices with air compression [in Polish]. Bezpieczeństwo Pracy-Nauka i Praktyka 2011, No. 7 – 8, 38 – 41.

[7] Minister of Labour and Social Policy Regulation of 6 June 2014 on the maximum admissible concentration and intensities for agents harmful to health in the working environment [in Polish]. Journal of Laws 2014, No. 200, item 2047.

[8] D. Pleban. Methods of determination of sound absorption properties of materials in frequency range above 4000 Hz. Proc. INTER-NOISE 2012, 2012.

[9] D. Pleban. Method of testing of sound absorption properties of materials intended for ultrasonic noise protection. Archive of Acoustics 2013 (38), No. 2, 191 – 195.

[10] W. Mikulski. Method of determining the sound absorbing coefficient of materials within the frequency range of 5000-50000 Hz in a test chamber of a volume of about 2 m3. Archives of Acoustics 2013 (38), No. 2, 177 – 183.

[11] A. Dobrucki, B. Żółtogórski, P. Pruchnicki, R. Bolejko. Sound-absorbing and insulating enclosures for ultrasonic noise. Archives of Acoustics 2010 (35), No. 2, 157 – 164.

[12] B. Smagowska, W. Mikulski, I. Jakubowska. Sound absorbing materials for collective protections against ultrasonic noise research results [in Polish]. Bezpieczeństwo Pracy-Nauka i Praktyka 2014, No. 5, 24 – 26.

[13] EN ISO 10140-1:2010 Acoustics - Laboratory measurement of sound insulation of building elements - Part 1: Application rules for specific products.

[14] EN ISO 10140-2:2010 Acoustics - Laboratory measurement of sound insulation of building elements - Part 2: Measurement of airborne sound insulation.

[15] EN ISO 10140-3:2010 Acoustics - Laboratory measurement of sound insulation of building elements - Part 3: Measurement of impact sound insulation.

[16] EN ISO 10140-4:2010 Acoustics - Laboratory measurement of sound insulation of building elements - Part 4: Measurement procedures and requirements.

[17] EN ISO 10140-5:2010 Acoustics - Laboratory measurement of sound insulation of building elements - Part 5: Requirements for test facilities and equipment.

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