Subjective Response to Foot-Fall Noise, Including Localization of the Source Position

Brunskog, Jonas; Hwang, Ha Dong; Jeong, Cheol‐Ho

doi:10.3813/aaa.918470

Cited by 10 publications

(8 citation statements)

References 9 publications

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“…Brunskog et al [43] provide a method to calculate the discrete frequency spectrum of the impact loading due to a standard tapping machine. The floor is described by a general frequency-dependent driving-point impedance Z dp .…”

Section: Impact Soundmentioning

confidence: 99%

Vibration and impact sound properties of hybrid steel-timber floor structures

Chocholaty,

Roozen,

Hoppe

et al. 2024

Acta Acust.

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Lightweight floor structures, such as timber or hybrid timber floors, face challenges associated with excessive vibrations and elevated levels of low-frequency impact sound. Especially here, accurate prediction of a floor’s vibration and acoustic behavior is essential. However, typical laboratory testing of building elements is costly and time-consuming. To reduce costs, in this study, adapted simulations are carried out on two types of hybrid steel-timber floor structures to evaluate vibrations and impact sound. The hybrid elements are made of laminated veneer lumber as the top and bottom layers and a trapezoidal steel component as the web. Vibration measurements are used in combination with Bayesian optimization to efficiently calibrate Finite Element models, which are subsequently utilized to quantify and validate the floor structures regarding vibrations and impact sound. The two types of cross-sections, i.e., closed and open, are investigated and compared. The impact sound pressure level computations reveal promising results in predicting the behavior of the hybrid structures. However, further countermeasures are required to fulfill vibration serviceability requirements.

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Section: Impact Soundmentioning

confidence: 99%

Vibration and impact sound properties of hybrid steel-timber floor structures

Chocholaty,

Roozen,

Hoppe

et al. 2024

Acta Acust.

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“…The parametric calculation model for calculating the impact sound insulation is based on refs. [16][17][18][19][20]. In addition to the previously mentioned features of the parametric airborne sound insulation model, the impact sound insulation model considers the force interaction between the ISO tapping machine and the floor structure.…”

Section: Parametric Calculation Modelsmentioning

confidence: 99%

The effect of suspension systems on the sound insulation of suspended ceilings: a finite element analysis

Lietzén,

Kovalainen,

Talus

et al. 2023

Proceedings of Meetings on Acoustics

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It has been shown via laboratory measurements that the airborne and impact sound insulation of a concrete floor structure with a suspended plasterboard ceiling can be improved by using elastic ceiling suspension systems. The weighted airborne sound reduction index R w was increased by 7 dB and the normalized impact sound pressure level L n,w was decreased by 15 dB when using elastic ceiling hangers as opposed to fixed hangers. In order to study the effect of elastic ceiling hangers on sound insulation further and to make it easier to compare different suspension systems especially in the low frequency range, a calculation model applying the finite element method (FEM) and parametric calculation methods was created. The calculation model was validated using measured data. The calculation results were then used to predict the improve-ment of sound insulation achieved with the different suspended ceilings. Additionally, the calculation model was used to examine the phenomena around the performance of the different ceiling hangers. The calculation results confirm the observations made from the laboratory measurements; switching from fixed ceiling hangers to elastomer ceiling hangers improved the performance of the suspended ceiling by more than 10 dB, with significant improvements beginning from the low frequencies.

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“…where i is the subject, j is the concert hall (j=0 for Magasinet, and j=1 for Skråen), and k is the occupation of the respondent (k=0 for musicians and k=1 for sound engineer) [6,7] The fixed effects are written with upper case Latin characters (A, B, C and D) and the random effects are written with Greek characters (here only ! ).…”

Section: Analysis Of the Ratingsmentioning

confidence: 99%

Investigation on acceptable reverberation time at various frequency bands in halls that present amplified music

2018

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Subjective Response to Foot-Fall Noise, Including Localization of the Source Position

Cited by 10 publications

References 9 publications

Vibration and impact sound properties of hybrid steel-timber floor structures

Vibration and impact sound properties of hybrid steel-timber floor structures

The effect of suspension systems on the sound insulation of suspended ceilings: a finite element analysis

Investigation on acceptable reverberation time at various frequency bands in halls that present amplified music

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