Effect of material parameter variability on vibroacoustic response in wood floors

Persson, Peter; Flodén, Ola

doi:10.1016/j.apacoust.2018.10.034

Cited by 10 publications

(2 citation statements)

References 16 publications

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“…Furthermore, wood is susceptible to changes in environmental conditions such as temperature and moisture [20] and to chemical treatment [21,22]. These changes entail macroscopic modifications in a sample's density and size and in its response to excitation [23]. Whilst the former are easily recognised and measurable, the latter is established by changes in the sample's elastic properties, which are harder to quantify.…”

Section: Introductionmentioning

confidence: 99%

A Method to Estimate the Rectangular Orthotropic Plate Elastic Constants Using Least-Squares and Chladni Patterns

Ducceschi,

Duran,

Tahvanainen

et al. 2023

Preprint

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Section: Introductionmentioning

confidence: 99%

A Method to Estimate the Rectangular Orthotropic Plate Elastic Constants Using Least-Squares and Chladni Patterns

Ducceschi,

Duran,

Tahvanainen

et al. 2023

Preprint

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“…[7] and Lim & Manuel [8]. Vibroacoustic response of wooden and CLT floors with material parameter variability has been studied by Persson & Floden [9] and Qian [10]. All analyses demonstrated great influence of material uncertainties on the natural frequencies and acoustic performance of investigated wooden floors.…”

Section: Introductionmentioning

confidence: 99%

Effects of material uncertainties on vibration performance of cross laminated timber floors

Milojević¹,

Damnjanović²,

Nefovska-Danilović³

et al. 2021

Građ materijali i konstrukcije

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Variety of wood species and complexity of their structure make the reliable material properties of cross-laminated timber (CLT) difficult to obtain, which can lead to inaccurate prediction of CLT behavior. Due to high stiffness-to-weight ratio, CLT floors can suffer from vibration serviceability issues. This paper aims to quantify the uncertainties induced by material properties and investigate their effect on vibration performance of CLT floors. Analysis based on Monte Carlo simulations, considering material properties as random variables, is developed. Based on the conducted analysis, appropriate conclusions have been derived.

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Vibration response of a hybrid steel–timber building element with uncertain material and joint parameters

Chocholaty,

Eser,

Hoppe

et al. 2023

Archiv.Civ.Mech.Eng

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The design of building elements is usually done conservatively by considering safety factors. However, more efficient designs are gaining interest for economic and sustainability reasons. Hence, an adequate prediction tool can improve the design of building elements. Probabilistic modeling, for example, Monte Carlo simulations, represents a remedy to this by examining uncertainties in a structure through uncertain input parameters. In this work, a Monte Carlo simulation is performed to quantify the uncertainty in the modal properties of a hybrid steel–timber building element. The material properties of the timber material and the stiffness of the structural joints are considered uncertain inputs. The probabilistic properties of the timber material are evaluated utilizing Bayesian inference instead of the usually applied empirical methods. Using these inferred timber material properties leads to a good match of simulated and measured natural frequencies of the timber components. These parameters are utilized together with the joints’ uncertain inputs in the Monte Carlo simulation of the hybrid steel–timber building element. The results show a significant span for the identified eigenfrequencies, which proves the relevance of probabilistic analyses for the vibration characteristics of building elements.

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Effect of material parameter variability on vibroacoustic response in wood floors

Cited by 10 publications

References 16 publications

A Method to Estimate the Rectangular Orthotropic Plate Elastic Constants Using Least-Squares and Chladni Patterns

A Method to Estimate the Rectangular Orthotropic Plate Elastic Constants Using Least-Squares and Chladni Patterns

Effects of material uncertainties on vibration performance of cross laminated timber floors

Vibration response of a hybrid steel–timber building element with uncertain material and joint parameters

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