An engineering method to measure the impact sound reduction due to soft coverings on heavyweight floors

Baruch, Katarzyna; Szeląg, Agata; Rubacha, Jarosław; Hałoń, Kamila

doi:10.1016/j.apacoust.2018.08.006

Cited by 5 publications

(6 citation statements)

References 2 publications

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“…For the purpose of the article, a parameter was introduced which defines the deviation of the curve determined during the machine operation from the reference curve. To determine the differences between the curves, the Root Mean Square Deviation (RMSD) parameter was used [1]: The second proposed parameter is the maximum difference for the whole rotational speed range:…”

Section: Signal Analysis Methodsmentioning

confidence: 99%

Single-number statistical parameters in the assessment of the technical condition of machines operating under variable load

Pawlik¹

2019

Eksploatacja i Niezawodność – Maintenance and Reliability

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Section: Signal Analysis Methodsmentioning

confidence: 99%

Single-number statistical parameters in the assessment of the technical condition of machines operating under variable load

Pawlik¹

2019

Eksploatacja i Niezawodność – Maintenance and Reliability

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“…Therefore, some scientists are developing an engineering alternative method of measuring the ΔL parameter that do not require specialized chambers and floors. [20], [32], [33]. Moreover, Bethke [32] showed that, the engineering method gives about 3 dB lower than the values stated in ISO10140-3.…”

Section: Impact Sound Reductionmentioning

confidence: 99%

Acoustical Efficiency and Physico-Mechanical Characteristics Study for New Composite Material: Ethylene Vinyl Acetate and Wood Sawdust

2024

IJETER

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Developing neoteric composite materials (CM) that improve the acoustic efficiency and mechanical properties become the target of many scientists in the last decade. This paper presents research on developing new CMs using Ethylene Vinyl Acetate (EVA) and sawdust (SD) of different weight concentrations which can be help to improve the acoustic and mechanical properties of the EVA polymer materials. Prototypes of EVA composite in form of flat plates with different weight concentrations of sawdust namely; 0, 2.5, 5, 10, 20 and 30% were produced. One of the interesting applications of this new CMs is to use it as a floor covering in buildings and manufactures. The acoustic efficiency parameters namely, impact noise reduction and sound absorption are experimentally studied. The obtained results articulate that covering floors with the designed composite material of EVA/SD as filler can decrease ISR up to 14 dB. Also, it gives peak sound absorption coefficient about 0.6 for 30 % of SD at mid-frequency band. The greatest proportion of SD aggregate EVA does not entail a higher acoustic performance. The tensile strength of the composite increases to 15.5% when the SD content is 5% and the tensile strength drops with increase the SD content up to 30%. Therefore, SD may be utilized as filler and consolidation in the EVA matrix, which will save expenses and assist the environment.

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“…The total area of the said wall is 327 m 2 , including: brick wall -270 m 2 ; window openings filled in with bricks -47 m 2 ; wooden doors -10 m 2 . The total volume of the concert hall is 7045 m 3 . The internal walls of the concert hall are made from brick, the floor is of a concrete construction and the ceiling is a suspended construction with plasterboard tiles.…”

Section: The Subject Of Investigation -Cracow Philharmonic Buildingmentioning

confidence: 99%

“…the airborne sound insulation of such a case must be efficient enough. The construction of an insulation case was precisely described in, for example,[3]. The authors proposed a multi-layered construction in which the walls of the insulation case are built from layers of plaster board, mineral wool and plywood; the connections between the floor and the case are additionally sealed with putty.…”

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confidence: 99%

An engineering method to measure structure-borne sounds transmitted through the building partitions

Baruch¹,

Majchrzak²,

Kamisiński³

et al. 2019

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In this paper, the authors present an engineering method to identify the transmission paths of structureborne sounds. The method is based on the use of a standardised impact sound source with an insulation case. The advantage of this approach is the possibility of obtaining repeatable results because the method allows the separation of structure-borne and airborne sounds; the latter do not interrupt the measurement even in the case of loose connections or elements of low acoustic insulation. The research on the verification of the method was performed on the façade of the Cracow Philharmonic building; the main structureborne sound transmission paths were determined successfully. Knowledge of the sound transmission paths allows the subsequent design of efficient vibroacoustic protection.

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An engineering method to measure the impact sound reduction due to soft coverings on heavyweight floors

Cited by 5 publications

References 2 publications

Single-number statistical parameters in the assessment of the technical condition of machines operating under variable load

Single-number statistical parameters in the assessment of the technical condition of machines operating under variable load

Acoustical Efficiency and Physico-Mechanical Characteristics Study for New Composite Material: Ethylene Vinyl Acetate and Wood Sawdust

An engineering method to measure structure-borne sounds transmitted through the building partitions

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