TY - CHAP A1 - Gibbs, Barry A1 - Mayr, Andreas T1 - Structure-borne sound transmission from machines into ribbed structures. T2 - Acoustics 2008, Paris, France N2 - The total structure-borne sound power of an installed machine is a function of the source activity and mobility, and the receiver mobility, at each contact and for each component of excitation. The data and computational requirements for prediction therefore are large. Manufacturers view their products as single entities and desire corresponding single values of source strength. A laboratory reception plate measurement procedure has been proposed which yields single equivalent values of source strength and source mobility. The source data, in combination with an estimate of the single equivalent value of receiver mobility, yields the approximate total installed power. The accuracy of the estimate is dependent on the spatial variation in contact conditions over the connections. In addition, phase information has been lost in the simplification. Case studies are described for multiple contact sources on a non-homogeneous plate (a timber-joist floor) where the approximate estimates of structure-borne power are compared with exact values obtained from full mobility formulations. KW - Sound trasmissions KW - ribbed structures Y1 - 2008 ER - TY - CHAP A1 - Gibbs, Barry A1 - Mayr, Andreas T1 - Structure-borne sound from machines in lightweight buildings. T2 - 15th International Congress on Sound and Vibration (ICSV15), July 2008, Daejeon, Korea N2 - A practical method is proposed for predicting the total structure-borne sound transmission from machines installed in lightweight buildings. The total structure-borne sound power is a function of the source activity and mobility, and the receiver mobility, at each contact and for each component of excitation. The data and computational requirements for prediction normally are large and are required to be in complex form for the cases where source mobility and receiver mobility are of the same magnitude. This can occur in lightweight framed buildings. However, manufacturers view their products as single entities and desire corresponding single values of source strength. They also desire simple measurement methods and the data obtained to be in octave or one-third octaves. A laboratory reception plate measurement procedure has been proposed which yields single equivalent values of source strength and source mobility. The source data, in combination with an estimate of the single equivalent value of receiver mobility, yields a simple prediction of the total installed power. The accuracy of the simple prediction depends on the spatial variation in contact conditions. For example, the receiver mobility over a joist is likely to be significantly lower than for positions between joists. Case studies are described for multiple contact sources on a timber-joist floor where the simple predictions are compared with exact values obtained from a full mobility formulation. KW - Structure-born sound KW - Lightweight buildings Y1 - 2008 ER - TY - CHAP A1 - Mayr, Andreas R. A1 - Gibbs, Barry T1 - On the use of single equivalent excitation to estimate the structure-borne sound power from machines on timber joist floors T2 - 16th International Congress on Sound and Vibration, ISCV16, Krakòw, Poland, July 2009. N2 - Vibrational active sources introduce structure-borne sound power to the supporting structure through all contact points and by up to six components of excitation. The total structure-borne sound power is a function of source activity, source mobility and receiver mobility and receiver mobility is expected to vary significantly with source position on lightweight structures such as timber joist floors. A case study is presented, in which the spatial variation in structure-borne sound power is examined for a fan unit mounted on a timber joist floor. The exact structure-borne power is obtained from measured source free velocity, and measured source and receiver mobility, where forces are assumed the dominant excitation mechanism. The exact calculations are computationally intensive and require large data sets, and this is generally not a practical approach for prediction purposes. In addition, manufacturers view their products as single entities and desire corresponding single values of source strength. A laboratory reception plate measurement procedure has recently been proposed which yields single equivalent values of source strength and source mobility. This paper investigates if this collapsed data format appropriately describes the dynamic behaviour of the source and especially inhomogeneous receiver structures, to obtain estimates of total structure-borne sound power within acceptable accuracy. Since measured receiver data is usually not available, an approximate method is described, of estimating the point and transfer mobility, based on infinite beam and infinite plate behaviour. The single equivalent receiver mobility then is easily obtained and, when used in combination with single equivalent source data, yields an approximate prediction of the total installed power. Single equivalent estimates of structure-borne sound power are compared with exact values obtained from full mobility formulations. Results indicate that the accuracy of the approximate prediction may be sufficient for such installations. KW - single equivalent exitation KW - Structure-born sound power KW - Timber joist floors Y1 - 2009 ER - TY - CHAP A1 - Mayr, Andreas R. A1 - Gibbs, Barry T1 - Single equivalent excitation for the structure-borne power from machines on ribbed-plate structures T2 - Noise and Vibration: Emerging Methods, NOVEM 2009, Oxford, United Kingdom. N2 - Machines impart structure-borne power into connected and supporting structures through all contact points and by up to six components of excitation. It is recognised that considering all transmission paths for prediction purposes generally is not a practical approach, due to the large data and computational requirements. Reduced data sets and less computationally demanding procedures are sought which give the total power to the accuracy appropriate for the particular engineering design requirement. In this paper, single equivalent source and receiver values are considered for machines on ribbed-plate structures. In this case, large variations in the structural dynamics at the contact positions can be expected, and spatial averaging will lead to loss of accuracy. Single equivalent values have been assembled from measured source and receiver data. Case studies are described, for a fan unit and a whirlpool bath, on a timber-joist floor, which is a complicated periodic point-connected plate-rib structure. Approximate estimates of structure-borne power are compared with exact values obtained from full mobility matrix formulations. The case studies presented indicate the loss of accuracy of the prediction, which, in many situations, may be sufficiently small to allow such simplifications. KW - Structure-born power KW - ribbed-plate structures Y1 - 2009 ER - TY - CHAP A1 - Mayr, Andreas R. A1 - Gibbs, Barry A1 - Fischer, Heinz Martin T1 - On force- and moment mobilities of a timber joist floor T2 - 35th German Annual Conference on Acoustics (DAGA), Rotterdam, March 2009. N2 - In wood framed buildings, floors are formed by fastening wood sheathing to joists spaced at a regular interval. The sheathing is typically fastened to the joist using screws so the resulting system is a complicated periodic point-connected plate-rib structure. It is shown that the point force mobility varies significantly with position. A machine installation generally is close to discontinuities, such as at: floor edges, joist-screw locations, joints between the sheathing plates, and due to workmanship. In such cases, moment excitation might become important at some frequencies and the neglect of moments a priori can ead to inaccurate prediction of the total emission. This paper presents measured point moment mobilities with respect to the distance to discontinuities for a timber joist floor where a single layer of chipboard forms the sheathing. It is shownthat the measured point moment mobility indicates an infinite plate behaviour. This includes for positions above a joist but between screw positions. To determine the relative contribution of moments and perpendicular forces to the total structure-borne sound power, case studies of two sources, a fan unit and a whirlpool bath, are described, for various locations on a timber joist floor. KW - Force- and moment mobilities KW - Timber joist floor Y1 - 2009 ER - TY - JOUR A1 - Mayr, Andreas R. A1 - Gibbs, Barry T1 - Point and transfer mobility of point-connected ribbed plates JF - Journal of Sound and Vibration N2 - The work reported in this paper addresses the problem of structure-borne sound transmission between vibrating sources and ribbed-plate receiver structures. Vibrating sources, such as pumps, motors, fans, etc., transmit vibro-acoustic power, causing noise complaints by occupants in cars, trains, aircraft, buildings and/or material fatigue and damage. The transmission process is complicated in that sources transmit power through several contacts and by up to six components of excitation at each contact. The structure-borne sound power is a function of source activity, source mobility and receiver mobility, and all three quantities must be known to some degree. For non-homogeneous receiver structures, such as thin-plate cavity constructions or lightweight framed constructions, the sheathing plates are typically fastened to the framing members using bolts, screws or spot-welded joints. Hence the resulting system is a point-connected ribbed plate structure and the receiver mobility is expected to vary significantly with position. Since measured receiver data seldom is available for prediction purposes, a method of estimating the point and transfer mobility of point connected ribbed plates is required. In this paper, an approximate approach, based on substitution forces, is described. The model uses infinite beam and infinite plate behaviour as input quantities. Estimates of point and transfer mobility are compared with measured results using a timber joist floor construction as an example. KW - Point and transfer mobility KW - point-connected ribbed plates Y1 - 2011 IS - 330 (2011) SP - 4798 EP - 4812 ER - TY - THES A1 - Mayr, Andreas R. T1 - Vibro-Acoustic Sources in Lightweight Buildings N2 - The work reported in this thesis addresses the problem of structure-borne sound transmission in buildings. Vibrating sources, such as services plant and domestic appliances, transmit vibro-acoustic power, causing noise complaints by occupants in rooms removed from the source room. There is not yet an accepted practical method of predicting the installed power into floors or supporting walls, and thence the resultant sound pressure in rooms. This study concentrates on the prediction of the installed power from mechanical installations in lightweight buildings composed of framed and ribbed plates. To identify the characteristics of such receiver elements, a field survey has been undertaken, which involved measurement of the point and transfer mobilities of common wall and floor structures. It is shown that the range of measured values of receiver point mobility is surprisingly small and that the constructions investigated often displayed thin plate-like characteristics, with relatively small spatial variations in point mobility. These field measurements give support to the notion of averaging over contacts. This single equivalent receiver mobility has been assembled both from measured data and from the approximate method and then used in combination with single equivalent source data, to yield an approximate prediction of the installed power. The agreement obtained between the exact and approximate values allowed consideration of a practical implementation of the approximate prediction method, based on a reception plate method which yields the activity and mobility of the tested machine as single equivalent values. KW - Vibro-acoustic sources KW - Lightweight buildings Y1 - 2010 PB - Logos Verlag Berlin GmbH ER - TY - CHAP A1 - Gibbs, Barry A1 - Mayr, Andreas R. T1 - Estimates of mobility for prediction of structure-borne sound transmission in buildings T2 - 19th International Congress on Sound and Vibration, ICSV19, Vilnius, Lithuania, July 2012. N2 - This paper aims to provide a practical approach to the prediction of structure-borne sound power of mechanical installations in buildings. For structure-borne power, two source quantities, activity and mobility, are required, in combination with one receiver quantity, the receiver mobility. The source activity, in the form of free velocity or blocked force, is usually measured. For source mobility and receiver mobility, estimates, based on simple expressions, can provide a useful starting point. Also, machine bases may be categorised as: compact, plate-like, flanged or framed. Receiver structures, floors and walls, may be categorised as: plate-like, ribbed plate or framed plate. The estimates of source mobility are based on the rigid body value, the characteristic plate mobility and the fundamental plate frequency. For ribbed and framed plate structures, the mobility will vary with location, but again simple estimates of mobility, based on characteristic values and distance from the ribs, are possible. KW - Structure-born sound transmission KW - Estimates of mobility Y1 - 2012 ER - TY - JOUR A1 - Mayr, Andreas R. A1 - Gibbs, Barry T1 - Single equivalent approximation for multiple contact structure-borne sound sources in buildings JF - Acta Acoustica unitet with Acoustica N2 - The work reported in the paper addresses structure-borne sound transmission between multiple contact sources and non homogeneous plate receiver structures. This study concentrates on a practical method of predicting the installed structure-borne sound power from mechanical installations in lightweight buildings. The structure-borne sound power is a function of source activity, source mobility and receiver mobility, and all three quantities must be known to some degree. It is rarely practical to consider all transmission paths individually and in detail, and therefore, reduced data sets and less computationally demanding procedures are proposed. The paper examines how source data can be used to assemble single equivalent values, using spatial averages and magnitudes. Single equivalent values of receiver mobility also are proposed for lightweight, point-connected ribbed plate constructions. In case studies, the single equivalent values are used for predicting the structure-borne power in the installed condition. KW - Single Equivalent Approximation KW - Contact Structure-Borne Sound Sources in Buildings KW - Sound transmission Y1 - 2012 IS - 98 (2012) SP - 402 EP - 410 ER - TY - CHAP A1 - Mayr, Andreas R. T1 - Schallemissionen gebäudetechnischer Anlagen im Holzbau T2 - HolzBauSpezial Akustik & Brandschutztage 2013, Bad Wörishofen N2 - Vor dem Hintergrund des Klimawandels ist die Nachhaltigkeit von Wohngebäuden von enormer Bedeutung für die Gesellschaft des 21sten Jahrhunderts. Niedrigenergie-und Passivhauskonzepte können entscheidend dazu beitragen, den Energieverbrauch in Deutschland maßgeblich zu reduzieren. Diese Konzepte erfordern neue Bauweisen und energieeffiziente gebäudetechnische Anlagen, insbesondere Heizungsanlagen, Wärmepumpen und Lüftungsanlagen. Zusätzlich zur Energieeffizienz wird aber bei modernen Gebäuden ein hoher Wohn- und Arbeitskomfort gefordert und geschuldet. Diesbezüglich ist der bauliche Schallschutz zu einem wesentlichen Qualitätskriterium von Wohngebäuden geworden. Der beim Betrieb von gebäudetechnischen Anlagen erzeugte Lärm wird zunehmend als Problem wahrgenommen, das die Wohnqualität, das Wohlbefinden und damit verbunden die Gesundheit negativ beeinträchtigen kann. Durch die permanente Lärmbelästigung am Arbeitsplatz, durch Verkehr etc. ist die Erholung von Lärmeinwirkungen im eigenen Wohnbereich unerlässlich und lässt der Nachhaltigkeit des baulichen Schallschutzes eine große Bedeutung zukommen. Dieser kann momentan aufgrund fehlender Planungswerkzeuge für die von gebäudetechnischen Anlagen ausgehenden Schallimmissionen nicht gewährleistet werden. Im Rahmen eines aktuellen, kooperativen Forschungsvorhabens der Hochschule Rosenheim und der Hochschule für Technik Stuttgart soll dieser Missstand beseitigt werden,indem aufeinander abgestimmte Mess-und Prognoseverfahren für die Körperschallerzeugung und Schallübertragung gebäudetechnischer Anlagen im Massivbau sowie im Holz- und Leichtbau erarbeitet, validiert und Anwendern bereitgestellt werden. Damit soll ein vollständiges Instrumentarium geschaffen werden, mit dem die Geräusche gebäudetechnischer Anlagen unter besonderer Berücksichtigung ihrer Körperschalleigenschaften von der Quelle über die Übertragung im Gebäude bis zum Einwirkungsort geschlossen beschrieben werden können. Die Methoden sollen den Anlagenhersteller für die Charakterisierung der Schallquellen und deren schalltechnische Optimierung zur Verfügung stehen und sollen von den Gebäudeplanern als Prognoseinstrument für die schalltechnische Planung und Auslegung genutzt werden können. Dies ist ausgesprochen anspruchsvoll, da gebäudetechnische Anlagen in vielen Fällen vor allem Körperschallquellen darstellen, deren physikalische Beschreibung aufgrund von Wechselwirkungen zwischen Quellen und Empfangsstrukturen ungleich komplizierter ist als die von Luftschallquellen. So ist die Körperschallerzeugung und -übertragung im Massivbau bekanntermaßen völlig unterschiedlich gegenüber den im Holzbau vorliegenden Bedingungen. Dies erfordert eine separate Betrachtung der Anrege- und Übertragungsmechanismen für beide Gebäudearten und bedingt die Kooperation der HFT-Stuttgart (spezialisiert auf Massivbau) und der HS Rosenheim (spezialisiert auf Holz und Leichtbau). Durch die Beteiligung von Unternehmen aus der gewerblichen Wirtschaft wird zudem sichergestellt, dass die aktuellen Bedingungen des Bauwesens Berücksichtigung finden und die praktische Umsetzbarkeit der Lösungen gewährleistet ist. KW - Schallemissionen KW - Holzbau Y1 - 2013 ER - TY - CHAP A1 - Schöpfer, Fabian A1 - Hopkins, Carl A1 - Mayr, Andreas R. A1 - Schanda, Ulrich T1 - Structure-borne sound propagation across a double leaf timber-frame wall T2 - 22nd International Congress on Sound and Vibration, ICSV22, Florence, Italy, July 2015. N2 - With the increasing mechanization of buildings, it is necessary to be able to predict both the structure-borne sound power input from building machinery and the subsequent propagation of structure-borne sound in the building. This paper considers lightweight constructions and describes the results of an experimental study in the laboratory on a T-junction that was constructed from a timber joist floor and two double leaf timber-frame walls. The focus in this paper is on the vibrational behaviour of one of the timber-frame walls. To assess the vibration pattern and the propagation of structure-borne sound, the surface velocity levels were measured on a grid on both leaves of the wall with point force excitation on one side. This grid allowed calculation of structural intensity vectors. The influence of elements such as the timber studs and tongue and grooved joints between the boards were apparent in different frequency regions. Experimental modal analysis was carried out using measurements on both leaves of the wall, giving information about the coupling in different frequency regions. The results give insight into how such a timber-frame wall could be modelled using statistical energy analysis. KW - Double-leaf timber-frame wall KW - Structure-borne sound propagation Y1 - 2015 ER - TY - CHAP A1 - Mayr, Andreas T1 - Schallschutz mit der neuen DIN 4109, Was hat sich im Bauteilkatalog Trockenbau geändert? T2 - Das Forum 2017 - Zukunft Trockenbau Ausbau, Berlin, Deutschland, September 2017. N2 - Die DIN 4109 regelt die Anforderungen an den Schallschutz in Gebäuden sowie den Nachweis der Einhaltung dieser Anforderungen. Im Juli 2016 erschien die komplett überarbeitete und neu strukturierte „neue“ DIN 4109. Im Vortrag werden wesentliche Änderungen, die neuen Rechenverfahren und die relevanten Bauteilkataloge kurz erläutert. Änderungen, die sich speziell für die schalltechnische Planung und Ausführung des Trockenbaus ergeben, werden anhand von praktischen Beispielen aufgezeigt. Damit soll ein Gefühl für Möglichkeiten und Grenzen in der Anwendung der neuen Norm vermittelt werden. KW - Trockenbau KW - Schallschutz KW - Bauteilkatalog Y1 - 2017 ER - TY - CHAP A1 - Schöpfer, Fabian A1 - Mayr, Andreas R. A1 - Schanda, Ulrich A1 - Bayer, Jeremias T1 - Analysis of measured transmission functions in timber buildings T2 - Proceedings of Forum Acusticum 2023 Y1 - 2023 ER - TY - CHAP A1 - Schöpfer, Fabian A1 - Mayr, Andreas R. A1 - Schanda, Ulrich A1 - Nusser, Bernd A1 - Arnold, Jörg A1 - Vogel, Albert A1 - Völker, Conrad T1 - Entwicklungen bei der Prognose von Geräuschen aus gebäudetechnischen Anlagen T2 - 12. Bauphysiktage 2024 KW - Körperschall KW - Normung KW - Körperschallquellen KW - Installationen Y1 - 2024 ER - TY - JOUR A1 - Schöpfer, Fabian A1 - Mayr, Andreas R. A1 - Schanda, Ulrich T1 - Schallschutz bei gebäudetechnischen Anlagen planen: Praxistaugliches Prognoseverfahren nutzt Übertragungsfunktionen im Holzbau JF - Bauen+ Y1 - 2021 SN - 2363-8125 IS - 5 SP - 21 EP - 25 ER - TY - CHAP A1 - Schöpfer, Fabian A1 - Kruse, Tobias A1 - Mayr, Andreas R. A1 - Schanda, Ulrich T1 - Erfahrungen mit der DIN EN 15657:2017-10 und dem Empfangsplattenprüfstand an der TH Rosenheim T2 - Fortschritte der Akustik - DAGA KW - Berechnungsmethoden KW - Körperschall KW - Normung KW - Körperschallquellen KW - Installationen KW - Prüfstand Y1 - 2022 ER - TY - CHAP A1 - Schöpfer, Fabian A1 - Kruse, Tobias A1 - Weinzierl, Johanna A1 - Mayr, Andreas R. A1 - Schanda, Ulrich T1 - Experiences with source characterization methods within and beyond the scope of EN 15657 T2 - Proceedings of Inter-Noise 2022 Y1 - 2022 ER - TY - CHAP A1 - Weinzierl, Johanna A1 - Kruse, Tobias A1 - Mayr, Andreas R. A1 - Schöpfer, Fabian A1 - Schanda, Ulrich T1 - Leistungsvergleich gebäudeähnlicher Strukturen bei in-plane und out-of-plane Anregung T2 - Fortschritte der Akustik - DAGA KW - Körperschall KW - Messtechnik KW - Körperschallquellen KW - Prüfstand Y1 - 2022 ER - TY - CHAP A1 - Bayer, Jeremias A1 - Schöpfer, Fabian A1 - Mayr, Andreas R. A1 - Schanda, Ulrich T1 - Prognoseverfahren für Installationsgeräusche im Holzbau T2 - Fortschritte der Akustik - DAGA KW - Berechnungsmethoden KW - Körperschall KW - Normung KW - HolzLeichtBau KW - Holzmassivbau Y1 - 2022 ER - TY - CHAP A1 - Weinzierl, Johanna A1 - Schöpfer, Fabian A1 - Mayr, Andreas R. A1 - Schanda, Ulrich T1 - Vorschlag für eine neue Messmethode zur Bestimmung von Abwassergeräuschen am Prüfstand T2 - Fortschritte der Akustik - DAGA KW - Normung KW - GebaeudetechnischeAnlagen KW - Prüfstand Y1 - 2020 ER - TY - CHAP A1 - Weinzierl, Johanna A1 - Schöpfer, Fabian A1 - Mayr, Andreas R. A1 - Schanda, Ulrich T1 - Approach for a new laboratory method to determine noise from waste water installations T2 - Proceedings of e-Forum Acusticum 2020 Y1 - 2020 ER - TY - CHAP A1 - Châteauvieux-Hellwig, Camille A1 - Geladze, Ekaterine A1 - Mayr, Andreas R. A1 - Schanda, Ulrich A1 - Schöpfer, Fabian T1 - Prognoseverfahren zum Schall- und Schwingungsschutz für BIM-basierte Gebäudeplanung T2 - Fortschritte der Akustik - DAGA KW - BIM Y1 - 2020 ER - TY - RPRT A1 - Geladze, Ekaterine A1 - Schanda, Ulrich A1 - Châteauvieux-Hellwig, Camille A1 - Schöpfer, Fabian A1 - Mayr, Andreas R. T1 - Bauakustik meets BIM T2 - Jahresbericht 2019, Forschung - Entwicklung - Innovation KW - BIM Y1 - 2020 ER - TY - CHAP A1 - Schanda, Ulrich A1 - Hoßfeld, Michael A1 - Schöpfer, Fabian A1 - Mayr, Andreas R. T1 - In-plane excitation of reception plates according to EN 15657:2017 T2 - Proceedings of ICA 2019 KW - Körperschall KW - Normung KW - Körperschallquellen KW - Prüfstand Y1 - 2019 ER - TY - CHAP A1 - Schöpfer, Fabian A1 - Mayr, Andreas R. A1 - Schanda, Ulrich T1 - Experimental investigation of a single reception plate method to obtain two source quantities required to predict structure-borne sound transmission in buildings T2 - Proceedings of ICA 2019 KW - Körperschall KW - Messtechnik KW - Körperschallquellen Y1 - 2019 ER - TY - CHAP A1 - Kruse, Tobias A1 - Mayr, Andreas R. A1 - Schöpfer, Fabian A1 - Schanda, Ulrich T1 - Kennwerte für die schalltechnische Prognose von gebäudetechnischen Anlagen am Beispiel einer Wärmepumpe T2 - Fortschritte der Akustik - DAGA KW - Körperschall KW - Installationen KW - TechnischeAkustik KW - GebaeudetechnischeAnlagen KW - Koerperschall Y1 - 2023 ER - TY - CHAP A1 - Kruse, Tobias A1 - Schöpfer, Fabian A1 - Schanda, Ulrich A1 - Mayr, Andreas R. T1 - Input data for the prediction of noise from technical equipment using a heat pump T2 - Proceedings of Forum Acusticum 2023 KW - Berechnungsmethoden KW - Körperschall KW - Körperschallquellen KW - TechnischeAkustik KW - Koerperschall Y1 - 2023 ER - TY - CHAP A1 - Schöpfer, Fabian A1 - Mayr, Andreas R. A1 - Schanda, Ulrich T1 - Prognose von Installationsgeräuschen im Holzbau T2 - Fortschritte der Akustik - DAGA Y1 - 2019 SN - 978-3-939296-14-0 SP - 86 EP - 89 ER - TY - CHAP A1 - Schöpfer, Fabian A1 - Mayr, Andreas R. A1 - Schanda, Ulrich T1 - Structure-borne sound sources in timber buildings – prediction of machinery noise using measured transmission functions T2 - Proceedings of ICA 2019 KW - Körperschall KW - HolzLeichtBau KW - Holzmassivbau KW - Körperschallquellen KW - Installationen KW - GebaeudetechnischeAnlagen Y1 - 2019 ER - TY - CHAP A1 - Hoßfeld, Michael A1 - Schöpfer, Fabian A1 - Mayr, Andreas R. A1 - Schanda, Ulrich T1 - Untersuchungen zur Ausweitung des Verfahrens zur Ermittlung der charakteristischen Körperschallleistung haustechnischer Anlagen mittels Empfangsplatten gemäß DINEN15657:2017-10 auf Anregungen in Plattenebene T2 - Fortschritte der Akustik - DAGA Y1 - 2019 SN - 978-3-939296-14-0 ER - TY - CHAP A1 - Gibbs, Barry M. A1 - Mayr, Andreas R. T1 - Source quantities for vibro-acoustic transmission into lightweight building elements T2 - Proceedings of Inter-Noise 2016 KW - Körperschall KW - HolzLeichtBau KW - Körperschallquellen KW - Transmission KW - Installationen Y1 - 2016 SN - 978-3-939296-11-9 ER - TY - CHAP A1 - Mayr, Andreas R. A1 - Schöpfer, Fabian A1 - Schanda, Ulrich A1 - Hopkins, Carl T1 - Measurement and prediction of structure-borne sound transmission from machinery in timber-frame buildings T2 - Proceedings of Euronoise 2018 KW - Berechnungsmethoden KW - Körperschall KW - HolzLeichtBau KW - Körperschallquellen Y1 - 2018 ER - TY - CHAP A1 - Schöpfer, Fabian A1 - Hopkins, Carl A1 - Mayr, Andreas R. A1 - Schanda, Ulrich T1 - Ansätze zur Prognose des Installationspegels im Holz-Leichtbau T2 - Fortschritte der Akustik - DAGA KW - Körperschall KW - HolzLeichtBau KW - Holzmassivbau KW - Körperschallquellen KW - ZukunftBauUebertragung KW - Impulshammer Y1 - 2017 SN - 978-3-939296-12-6 ER - TY - CHAP A1 - Schöpfer, Fabian A1 - Hopkins, Carl A1 - Mayr, Andreas R. A1 - Schanda, Ulrich T1 - Prediction of noise from machinery in timber-frame buildings using transmission functions T2 - Proceedings of ICSV24 KW - Körperschall KW - HolzLeichtBau KW - Holzmassivbau KW - Körperschallquellen KW - ZukunftBauUebertragung KW - Impulshammer Y1 - 2017 SN - 978-1-906913-27-4 ER - TY - RPRT A1 - Schanda, Ulrich A1 - Mayr, Andreas R. A1 - Schöpfer, Fabian T1 - Nachhaltiger Schallschutz gebäudetechnischer Anlagen T2 - Forschungsbericht 2014 Y1 - 2015 SP - 20 EP - 23 ER - TY - GEN A1 - Kruse, Tobias A1 - Mayr, Andreas R. A1 - Schanda, Ulrich A1 - Schöpfer, Fabian T1 - FH-IPTOOLS: Predicting wastewater noise in timber constructions - a project introduction T2 - Proceedings of Forum Acusticum/Euronoise N2 - The research project FH-IPTOOLS is a joint project between Rosenheim Technincal University of Applied Sciences (THRo) and the University of Applied Sciences Döpfer (HSD) in collaboration with industrial partners and timber construction associations. The aim is to develop prediction tools for sound insulation, focusing on acoustic comfort and the perception of noise from technical service equipment. The project focuses on wastewater systems in timber and lightweight constructions. Concepts need to be developed to ensure that acoustic comfort is taken into account in the design process. HSD is working on the psychoacoustic aspects. Signal detection theory will be used to formulate suitable evaluation methods to assess noise from building service equipment. Listening tests and field measurements will be used to develop criteria for sound insulation in timber construction to improve acoustic comfort. As part of the project, structure-borne sound characterisation will be carried out at THRo on a reception plate test rig. Therefore a reception plate with similar properties to timber frame constructions will be used. The aim is to develop methods for the direct measurement of structure-borne sound power in timber and lightweight constructions, while also determining airborne sound power. Initial results will be presented in the paper. Y1 - 2025 ER - TY - GEN A1 - Kruse, Tobias A1 - Schöpfer, Fabian A1 - Schanda, Ulrich A1 - Mayr, Andreas R. A1 - Dehm, Maximilian T1 - Experience with the high mobility reception plate for source characterization according to EN 15657 T2 - INTER-NOISE and NOISE-CON Congress and Conference Proceedings N2 - EN 12354-5 describes methods for the prediction of noise from technical equipment based on the airborne sound radiation and the structure-borne sound excitation. This paper considers methods to characterize the source in terms of structure-borne-sound (sbs) emission. Laboratory methods for sbs source characterization are given in EN 15657. In current research and development projects at Rosenheim Technical University of Applied Sciences these methods are applied to fully characterize technical equipment such as heat pumps or ventilation systems. This includes the determination of the equivalent blocked force, the source single equivalent free velocity and the source single equivalent mobility. EN 15657 describes various methods to determine the required properties. Recent project experience showed that this is essentially necessary because the most suitable method has to be applied depending on the nature of the technical equipment. This paper presents experiences with indirect measurement methods on the high-mobility plate and the direct measurement method given in EN 15657. Y1 - 2024 U6 - https://doi.org/10.3397/IN_2024_4067 SP - 8261 EP - 8268 ER - TY - CHAP A1 - Schöpfer, Fabian A1 - Mayr, Andreas R. A1 - Schanda, Ulrich A1 - Öhler, Sven A1 - Scheck, Jochen ED - Fouad, Nabil A. T1 - Geräusche gebäudetechnischer Anlagen – Bestimmung von Eingangsdaten und Berechnung der Schallübertragung im Gebäude T2 - Bauphysik-Kalender 2025 Y1 - 2025 SN - 9783433034514 SP - 469 EP - 500 ER - TY - GEN A1 - Kruse, Tobias A1 - Schöpfer, Fabian A1 - Mayr, Andreas R. A1 - Schmidt, Thorsten A1 - Hanz, Thomas T1 - Building service equipment – from source characterization and prediction to validation in buildings T2 - Proceedings of DAS|DAGA 2025 Y1 - 2025 ER - TY - RPRT A1 - Schanda, Ulrich A1 - Mayr, Andreas R. A1 - Schöpfer, Fabian T1 - FHprofUnt 2012: Nachhaltiger Schallschutz gebäudetechnischer Anlagen in energetisch optimierten Gebäuden: Teilprojekt 2: Schlussbericht KW - Gebäudetechnische Anlagen KW - Holzleichtbau KW - Holzmassivbau KW - Installationen KW - Körperschallquellen KW - Schallschutz Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:861-opus4-25463 ER - TY - RPRT A1 - Schöpfer, Fabian A1 - Mayr, Andreas R. A1 - Schanda, Ulrich T1 - Übertragungsfunktionen im Holzbau: Prognose der Schallübertragung aus haustechnischen Anlagen mit einem tabellarischen, praxistauglichen Ingenieurersatzverfahren: Forschungsbericht N2 - Zum Nachweis des gesetzlich geforderten Schallschutzes bei gebäudetechnischen Anlagen ist die Kenntnis der von diesen Anlagen ausgehenden Schallemissionen und deren Übertragung im Gebäude erforderlich. Hierfür steht mit der EN 12354-5:2009 ein validiertes Berechnungsverfahren zur Verfügung, das aber nur im Massivbau anwendbar ist. Ziel dieses Vorhabens war es, auch für den Holzbau ein praktikables Berechnungsverfahren zu erarbeiten, um die im Holzbau aufwendigen Planungsprozesse zur Erfüllung des geforderten Schallschutzes zu verbessern. Dabei wird ein empirisches Verfahren basierend auf gemessenen Übertragungsfunktionen vorgeschlagen. Damit kann die gesamte Übertragung von der eingeleiteten Körperschallleistung bis zum resultierenden Schalldruckpegel im schutzbedürftigen Raum beschreiben werden. Diese Übertragungsfunktionen können messtechnisch in Gebäuden in Holzbauweise ermittelt werden. Die prinzipielle Eignung dieses Verfahrens konnte für ausgewählte Übertragungssituationen in Forschungsarbeiten sowohl von der Technischen Hochschule Rosenheim als auch von anderen Forschungseinrichtungen bereits gezeigt werden. Im Rahmen dieses Projektes wurden Übertragungsfunktionen in Gebäuden in Holzbauweise ermittelt. Aus den so ermittelten Daten wurden Gruppen für ähnliche Übertragungswege und Konstruktionen gebildet. Für diese wurden repräsentative Übertragungsfunktionen abgeleitet, die nun erstmals eine Abschätzung des Schalldruckpegels aus gebäudetechnischen Anlagen im Holzbau ermöglichen. KW - Holzmassivbau KW - Körperschallquellen KW - Installationen KW - Gebaeudetechnische Anlagen KW - Holzleichtbau Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:861-opus4-25249 ER -