Feasibility analysis of an active technology to improve acoustic comfort in buildings

Naticchia, Berardo; Carbonari, Alessandro

doi:10.1016/j.buildenv.2006.07.040

Cited by 21 publications

(16 citation statements)

References 19 publications

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“…In actual use, this system could be realized in a number of different ways: for instance actuators could be inserted between a stiffening structure bonded on the glass plate or on the fixed frame of the controlled window [1]. All the experiments described in the following chapters have been performed by stiffening the actuators through the use of one mass like in Fig.…”

Section: Figure 3 Force Transducer By Pzt Actuators To Plane Surfacesmentioning

confidence: 99%

“…The first components for a generic façade is given by the insulation of windows and the insulation of opaque elements. It is possible to show [1] that the presence of windows make the opaque part ineffective in improving the overall sound reduction index above a certain point. In other words, windows are too weak in comparison with the opaque part and act as a preferred path for sound transmission.…”

Section: Introductionmentioning

confidence: 99%

“…[2] presents a full description of all the active approaches presently available, whose basic subdivision states between: Active Noise Control (ANC) and Active Structural Acoustic Control (ASAC). The authors have already explained in other contributions [1,3] that the first is not suitable for the purpose of improving windows' STL because it is based on the production of a cancelling wave that interferes destructively with the disturbing one: it means that some loudspeakers and microphones need to be installed in the receiving environment, and that their functioning should change according to the room shape and to the presence of people, that is clearly not feasible. For that reason the ASAC one was adopted for controlling glazed facades, which is performed by changing the vibration field of structures radiating noise.…”

Section: Introductionmentioning

confidence: 99%

“…In fact, glazed facades often represent the main problem, as they can respect the strict limits imposed by national regulations only when using expensive solutions. The two main types of passive means for improving STL presently known are laminated glass technology and double glazing, but those methods do not work in the low frequency range: double glazing improve STL in the middle frequency range, while laminated glass panels are useful just to shift the coincidence effect towards higher frequencies [1]. As it can be deduced from the standard UNI 12354:2000, the overall sound reduction index for a generic wall depends on the sound reduction indices of the elements it is made up of and from flanking transmission paths.…”

Section: Introductionmentioning

confidence: 99%

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Design and Development of an Active Controlled Window with High Sound Transmission Loss

Grassi¹,

Naticchia²,

Carbonari³

2007

Automation and Robotics in Construction &Amp;#8213; Proceedings of the 24th International Symposium on Automation and Robotics

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Improving the sound transmission loss (STL) of glazed facades is needed, as required by the 89/106/CEE European Directive, which imposes high STL values for building facades, whose weak part is generally constituted by the presence of windows, sometimes making them not adequate to observe the recently enacted requirements. As passive means (e.g. double windows and laminated glazing) were shown to be effective for increasing STL levels only in the medium-high frequency range of sound waves, in this paper an active control system for the coverage of a lower set of frequencies is experimented, where traffic and railway noise produces high levels of disturbance. This paper investigates the ASAC control system as applied on an experimental active control window prototype, focusing mainly on a dedicated technology that is able to improve its STL in the low frequency range, whose effectiveness has been shown by both Finite Element analyses and experiments.

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Section: Figure 3 Force Transducer By Pzt Actuators To Plane Surfacesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Design and Development of an Active Controlled Window with High Sound Transmission Loss

Grassi¹,

Naticchia²,

Carbonari³

2007

Automation and Robotics in Construction &Amp;#8213; Proceedings of the 24th International Symposium on Automation and Robotics

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“…The noise, regardless of its origin, the intensity and duration is a bothersome factor for humans and for the environment (Brzeźnicki, Bonczarowska, & Gromiec, 2009;Iwanek, Kobus, & Mitosek, 2007) including animals (Jaeger et al, 2008;Moura et al, 2008;Zhang, Chen, Gao, Pu, & Sun, 2008), plants (Watts, Chinn, & Godfrey, 1999) and buildings (Akdag, 2004;Naticchia & Carbonari, 2007).…”

mentioning

confidence: 99%

The Impact of Transport Infrastructure Modernisations on Acoustic Climate on the Example of the City of Szczecin (Poland) Intersections Redevelopment Effects

Sygit¹,

Kołłątaj²,

Sygit³

et al. 2014

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The source of most noise worldwide is mainly caused by machines and transportation means, including motor vehicles such as cars, buses, trains, aircrafts and so on.The excessive noise, called noise pollution, may harm the activity or balance of human or animal life. Noise pollution can cause annoyance, aggression and sleep disturbances. Chronic exposure to noise may cause noise-induced hearing loss, tinnitus and contribute to cardiovascular problems such as hypertension as well as increased incidence of coronary artery disease. Such may bring about deterioration in the wellbeing of people and increase the number of days of incapacity for work. This paper is an attempt to analyze the impact of transport infrastructure modernisations on the noise pollution in the city of Szczecin. The main objective of this paper was to compare the level of traffic noise in the areas surrounding streets: Powstańców Wielkopolskich, Mieszka I and Aleja Piastów Streets and crossroads of the streets: Taczaka-Łukasińskiego as well as Taczaka-Derdowskiego before and after the modernizations. The comparison of obtained results suggest that in some cases the modernization hasn't influenced on noise levels. In some, it improved the acoustic situation but hasn't reduced the noise to keep acceptable levels.The results emphasizethe thesis that some accepted methods of streets and crosswords modernization are sometimes ineffective in the fight against noise pollution.Conclusions: Modernization of intersections in Szczecin improved traffic flow but had a little impact on the noise levels. Modernisations that improve the traffic flow can cause even increment in noise pollution. It should be taken into consideration possible benefits of used methods of city traffic modernization related not only to traffic improvements but also to noise pollution reduction. We suggest computer aided stimulations and acoustic specialist advices prior to any restructures of city traffic. To minimize the noise pollution, comprehensive solutions are needed.

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Comparison of sound insulation of windows with double glass units

et al. 2015

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Feasibility analysis of an active technology to improve acoustic comfort in buildings

Cited by 21 publications

References 19 publications

Design and Development of an Active Controlled Window with High Sound Transmission Loss

Design and Development of an Active Controlled Window with High Sound Transmission Loss

The Impact of Transport Infrastructure Modernisations on Acoustic Climate on the Example of the City of Szczecin (Poland) Intersections Redevelopment Effects

Comparison of sound insulation of windows with double glass units

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