Accuracy of Assessing the Level of Impulse Sound From Distant Sources

• Autorzy: Wszołek T. , Kłaczyński M.
• Języki publikacji: EN

Abstrakty

EN

Impulse sound events are characterised by ultra high pressures and low frequencies. Lower frequency sounds are generally less attenuated over a given distance in the atmosphere than higher frequencies. Thus, impulse sounds can be heard over greater distances and will be more affected by the environment. To calculate a longterm average immission level it is necessary to apply weighting factors like the probability of the occurrence of each weather condition during the relevant time period. This means that when measuring impulse noise at a long distance it is necessary to follow environmental parameters in many points along the way sound travels and also to have a database of sound transfer functions in the long term. The paper analyses the uncertainty of immission measurement results of impulse sound from cladding and destroying explosive materials. The influence of environmental conditions on the way sound travels is the focus of this paper.

Słowa kluczowe

EN

impulse sound; noise measurement; long-term average immission level

• Wydawca: Taylor & Francis
• Czasopismo: International Journal of Occupational Safety and Ergonomics
• Rocznik: 2007
• Tom: Vol. 13, No. 4
• Strony: 433--440
• Opis fizyczny: Bibliogr. 13 poz., rys., tab., wykr.

Twórcy

autor

Wszołek T.

• Department of Mechanics and Vibroacoustics, AGH University of Science and Technology, Kraków, Poland

autor

Kłaczyński M.

• Department of Mechanics and Vibroacoustics, AGH University of Science and Technology, Kraków, Poland

Bibliografia

• 1.Żera J. Impulse noise in industrial plants: statistical distribution of levels. Int J Occup Med Environ Health. 2001;14(2):127–33.
• 2.Kłaczyński M, Wszołek T, Barański R, Sieradzki J. Badanie hałasu od impulsów wysokoenergetycznych w dalszej odległości [High energy impulse sound at distant locations: a case study]. In: Materiały XXXV Zimowej Szkoły Zwalczania Zagrożeń Wibroakustycznych. Gliwice, Poland: Oddział Górnośląski Polskiego Towarzystwa Akustycznego; 2007. p. 49–58.
• 3.Engel Z. Ochrona środowiska przed drganiami i hałasem [Environmental protection against vibration and noise]. Warszawa, Poland: PWN; 2001.
• 4.International Organization for Standardization (ISO). Acoustics—impulse sound propagation for environmental noise assessment (Standard No. ISO/TS 13474:2003). Geneva, Switzerland: ISO; 2003.
• 5.International Organization for Standardization (ISO). Acoustics—attenuation of sound during propagation outdoors—part 1: calculation of the absorption of sound by the atmosphere (Standard No. ISO 9613-1:1993). Geneva, Switzerland: ISO; 1993.
• 6.International Organization for Standardization (ISO). Acoustics—attenuation of sound during propagation outdoors—part 2: general method of calculation (Standard No. ISO 9613-2:1996). Geneva, Switzerland: ISO; 1996.
• 7.International Organization for Standardization (ISO). Acoustics—description and measurement of environmental noise—part 1: basic quantities and procedures (ISO 1996-1:2003). Geneva, Switzerland: ISO; 2003.
• 8.International Organization for Standardization (ISO). Acoustics—description and measurement of environmental noise—part 2: acquisition of data pertinent to land use (Standard No. ISO 1996-2:1987). Geneva, Switzerland: ISO; 1987.
• 9.International Organization for Standardization (ISO). Acoustics—description and measurement of environmental noise—part 3: application to noise limits (Standard No. ISO 1996-3:1987). Geneva, Switzerland: ISO; 1987.
• 10.The environment protection act of June 20, 2001, with later changes. Dz U. 2001; (62):item 627. In Polish.
• 11.Directive 2002/49/EC of the European Parliament and of the Council of 25 June 2002, relating to the assessment and management of environmental noise. Official Journal of the European Communities. 2002;L189:12–25.
• 12.Ordinance of the Minister of the Environment of December 23, 2004, on the requirements regarding measurement of emission levels. Dz U. 2004;(283):item 2842. In Polish.
• 13.Ordinance of the Minister of the Environment of June 14, 2007, on permissible noise levels in the environment. Dz U. 2007; (120):item 826. In Polish.