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Silent Timber Build - Development of low frequency vibroacoustic prediction tools for lightweight wooden constructions

The goal of the Silent Timber Build project is to develop new prediction tools for timber structures. As a matter of fact, impact sound insulation in the low frequency range is a crucial point concerning satisfaction of lightweight wooden-based building residents. Floor systems are rather complex: multi-layered, multi-cavity, stiffened, with floor covering and ceiling (either rigidly connected, su

The nature of damped HI absorbers probed by cosmological simulations: satellite accretion and outflows

We use cosmological hydrodynamic zoom simulations to study the neutral gas distributionin and around galaxies that gives rise to high column density HILyαabsorption (dampedLyαsystems (DLAs) and sub-DLAs) in background quasar spectra. Such simulations oftensacrifice numerical resolution for volume that affects the lower density galaxy halo gas,and simulations have difficulties reproducing the span

Modelling guidelines for simulating low frequency vibroacoustic performance in wooden T-junctions

Efficient and accurate numerical tools for predicting the vibroacoustic behaviour of wooden multi-storey buildings are lacking nowadays. The variability that a natural material as wood possesses, makes it difficult to accurately predict and model its behaviour. Likewise, construction details such as junctions and connections between structural elements play an important role in the dynamic respons

Finite Element Modeling for vibration transmission in a Cross Laminated Timber structure

This paper deals with a certain type of C.L.T. (Cross Laminated Timber) construction, in a residential building in Fristad, Sweden. The objective is to study impact noise transmission, at the lower frequency range (10-200 Hz), where wooden dwellings perform inefficiently, in terms of acoustic quality. The vibrational behavior of lightweight structures and specifically a multilayered floor separati