. .
Deutsch
Deutschland
Ähnliche Bücher
Weitere, andere Bücher, die diesem Buch sehr ähnlich sein könnten:
Buch verkaufen
Anbieter, die das Buch mit der ISBN 9783844006261 ankaufen:
Suchtools
Anmelden

Anmelden mit Facebook:

Registrieren
Passwort vergessen?


Such-Historie
Merkliste
Links zu eurobuch.de

Dieses Buch teilen auf…
Buchtipps
Aktuelles
Tipp von eurobuch.de
Werbung
FILTER
- 0 Ergebnisse
Kleinster Preis: 48,80 €, größter Preis: 55,79 €, Mittelwert: 50,20 €
Bestimmung akustischer Kenngrößen an einem fahrzeugunabhängigen Prüfstand zur Modellierung der Schallentstehung und Schallausbreitung in Fahrzeugklima - Kai Pies
Vergriffenes Buch, derzeit bei uns nicht verfügbar.
(*)
Kai Pies:
Bestimmung akustischer Kenngrößen an einem fahrzeugunabhängigen Prüfstand zur Modellierung der Schallentstehung und Schallausbreitung in Fahrzeugklima - neues Buch

12, ISBN: 9783844006261

ID: 179778055

While in the past the noise of the engine and other ancillary components of vehicles decreased, other components like the HVAC system have become more and more important. In upper class vehicles the aerodynamic noise of the air-conditioning system at high level might be annoying to the passengers. Modifications made at the late stage of the development phase are often very expensive. Therefore, it is more profitable to carry out tests and acoustic measurements related to both the whole HVAC system and single components at the early stage of the conception phase. This doctoral thesis presents the theoretical background of sound propagation in duct systems. Methods for determining the transfer matrices of HVAC elements, termination impedances, reflection coefficients and sound source characteristics are introduced. In addition to that, empirical approaches for calculating sound source characteristics of induct elements are presented. The experimental determination of acoustic characteristics is a main aim of this work. Therefore, different test benches are needed. An important aspect of these test benches is the examination of test objects independent of any vehicle. With this requirement test benches for the application of whole HVAC systems as well as several elements (e.g. ducts, bends etc.) were developed and validated. For a plane wave propagation the sound field in a duct system can be derived using transfer matrices. The value of these matrices of various sections and built-in components were determined by using a transfer matrix test bench. Another important parameter of HVAC systems is the termination impedance of air openings inside the vehicle. It is fundamental to describe the proportion of sound being emitted into the interior of a vehicle. Another test bench was developed, accounting for the necessary source characteristics and providing the following features: a defined air flow of silent air and sound excitation by using a noise source. The emission characteristic values obtained during these measurements can be implemented into a calculation model in relation to parameters, such as flow rate or position of the valves. In addition to the fan, which is regarded as a primary sound source, flow-induced noise also occurs at valves, bends and air openings, and thus it also has to be taken into consideration for the description of the overall noise characteristics. Based on the results obtained by the measurements, a sound propagation model is derived. If this sound propagation is mainly one-dimensional, the acoustic transfer matrix model can be applied to simulate the transmission characteristics. Due to the research results obtained in this doctoral thesis, it is possible to implement the sound source approach into the transfer matrix description of duct systems. With the measurements results of the terminating impedances the sound propagation within an HVAC system from the fan through the flow ducts, including valves, bends and other elements, to the drivers position outside the system is possible. The characteristics of the several components are described by transfer matrices, terminating impedances and sound source properties that result from measurements. Bestimmung akustischer Kenngrößen an einem fahrzeugunabhängigen Prüfstand zur Modellierung der Schallentstehung und Schallausbreitung in Fahrzeugklima Bücher > Sachbücher > Naturwissenschaften & Technik > Ingenieurwissenschaft & Technik > Maschinenbau Taschenbuch 12.2011 Buch (dtsch.), Shaker Media Verlag, 12.2011

Neues Buch Buch.ch
No. 30816823 Versandkosten:zzgl. Versandkosten
Details...
(*) Derzeit vergriffen bedeutet, dass dieser Titel momentan auf keiner der angeschlossenen Plattform verfügbar ist.
Bestimmung akustischer Kenngrößen an einem fahrzeugunabhängigen Prüfstand zur Modellierung der Schallentstehung und Schallausbreitung in Fahrzeugklimaanlagen - Pies, Kai
Vergriffenes Buch, derzeit bei uns nicht verfügbar.
(*)
Pies, Kai:
Bestimmung akustischer Kenngrößen an einem fahrzeugunabhängigen Prüfstand zur Modellierung der Schallentstehung und Schallausbreitung in Fahrzeugklimaanlagen - Taschenbuch

12, ISBN: 3844006265

ID: 156143

1., Aufl. Paperback 177 S. Broschiert While in the past the noise of the engine and other ancillary components of vehicles decreased, other components like the HVAC system have become more and more important. In upper class vehicles the aerodynamic noise of the air-conditioning system at high level might be annoying to the passengers. Modifications made at the late stage of the development phase are often very expensive. Therefore, it is more profitable to carry out tests and acoustic measurements related to both the whole HVAC system and single components at the early stage of the conception phase.This doctoral thesis presents the theoretical background of sound propagation in duct systems. Methods for determining the transfer matrices of HVAC elements, termination impedances, reflection coefficients and sound source characteristics are introduced. In addition to that, empirical approaches for calculating sound source characteristics of induct elements are presented.The experimental determination of acoustic characteristics is a main aim of this work. Therefore, different test benches are needed. An important aspect of these test benches is the examination of test objects independent of any vehicle. With this requirement test benches for the application of whole HVAC systems as well as several elements (e.g. ducts, bends etc.) were developed and validated.For a plane wave propagation the sound field in a duct system can be derived using transfer matrices. The value of these matrices of various sections and built-in components were determined by using a transfer matrix test bench.Another important parameter of HVAC systems is the termination impedance of air openings inside the vehicle. It is fundamental to describe the proportion of sound being emitted into the interior of a vehicle.Another test bench was developed, accounting for the necessary source characteristics and providing the following features: a defined air flow of silentâ? air and sound excitation by using a noise source. The emission characteristic values obtained during these measurements can be implemented into a calculation model in relation to parameters, such as flow rate or position of the valves. In addition to the fan, which is regarded as a primary sound source, flow-induced noise also occurs at valves, bends and air openings, and thus it also has to be taken into consideration for the description of the overall noise characteristics.Based on the results obtained by the measurements, a sound propagation model is derived. If this sound propagation is mainly one-dimensional, the acoustic transfer matrix model can be applied to simulate the transmission characteristics. Due to the research results obtained in this doctoral thesis, it is possible to implement the sound source approach into the transfer matrix description of duct systems.With the measurements results of the terminating impedances the sound propagation within an HVAC system from the fan through the flow ducts, including valves, bends and other elements, to the drivers position outside the system is possible. The characteristics of the several components are described by transfer matrices, terminating impedances and sound source properties that result from measurements. ISBN 9783844006261 Klimaanlage, Schallausbreitung, Kennzahl, Fahrzeugakustik, Prüfstand, Messung, Kraftfahrzeug, mit Schutzumschlag neu, [PU:Shaker,]

Neues Buch Achtung-Buecher.de
Speyer & Peters GmbH, 12165 Berlin
Versandkosten:Versandkosten innerhalb der BRD (EUR 2.30)
Details...
(*) Derzeit vergriffen bedeutet, dass dieser Titel momentan auf keiner der angeschlossenen Plattform verfügbar ist.
Bestimmung akustischer Kenngrößen an einem fahrzeugunabhängigen Prüfstand zur Modellierung der Schallentstehung und Schallausbreitung in Fahrzeugklimaanlagen  1., Aufl. - Pies, Kai
Vergriffenes Buch, derzeit bei uns nicht verfügbar.
(*)
Pies, Kai:
Bestimmung akustischer Kenngrößen an einem fahrzeugunabhängigen Prüfstand zur Modellierung der Schallentstehung und Schallausbreitung in Fahrzeugklimaanlagen 1., Aufl. - Taschenbuch

12, ISBN: 9783844006261

ID: 156143

1., Aufl. 177 S. Paperback While in the past the noise of the engine and other ancillary components of vehicles decreased, other components like the HVAC system have become more and more important. In upper class vehicles the aerodynamic noise of the air-conditioning system at high level might be annoying to the passengers. Modifications made at the late stage of the development phase are often very expensive. Therefore, it is more profitable to carry out tests and acoustic measurements related to both the whole HVAC system and single components at the early stage of the conception phase.This doctoral thesis presents the theoretical background of sound propagation in duct systems. Methods for determining the transfer matrices of HVAC elements, termination impedances, reflection coefficients and sound source characteristics are introduced. In addition to that, empirical approaches for calculating sound source characteristics of induct elements are presented.The experimental determination of acoustic characteristics is a main aim of this work. Therefore, different test benches are needed. An important aspect of these test benches is the examination of test objects independent of any vehicle. With this requirement test benches for the application of whole HVAC systems as well as several elements (e.g. ducts, bends etc.) were developed and validated.For a plane wave propagation the sound field in a duct system can be derived using transfer matrices. The value of these matrices of various sections and built-in components were determined by using a transfer matrix test bench.Another important parameter of HVAC systems is the termination impedance of air openings inside the vehicle. It is fundamental to describe the proportion of sound being emitted into the interior of a vehicle.Another test bench was developed, accounting for the necessary source characteristics and providing the following features: a defined air flow of silent” air and sound excitation by using a noise source. The emission characteristic values obtained during these measurements can be implemented into a calculation model in relation to parameters, such as flow rate or position of the valves. In addition to the fan, which is regarded as a primary sound source, flow-induced noise also occurs at valves, bends and air openings, and thus it also has to be taken into consideration for the description of the overall noise characteristics.Based on the results obtained by the measurements, a sound propagation model is derived. If this sound propagation is mainly one-dimensional, the acoustic transfer matrix model can be applied to simulate the transmission characteristics. Due to the research results obtained in this doctoral thesis, it is possible to implement the sound source approach into the transfer matrix description of duct systems.With the measurements results of the terminating impedances the sound propagation within an HVAC system from the fan through the flow ducts, including valves, bends and other elements, to the drivers position outside the system is possible. The characteristics of the several components are described by transfer matrices, terminating impedances and sound source properties that result from measurements. ISBN 9783844006261 Versand D: 2,30 EUR Klimaanlage, Schallausbreitung, Kennzahl, Fahrzeugakustik, Prüfstand, Messung, Kraftfahrzeug, [PU:Shaker,]

gebrauchtes bzw. antiquarisches Buch Buchfreund.de
Speyer & Peters GmbH, 12165 Berlin
Versandkosten:Versandkosten innerhalb der BRD (EUR 2.30)
Details...
(*) Derzeit vergriffen bedeutet, dass dieser Titel momentan auf keiner der angeschlossenen Plattform verfügbar ist.
Bestimmung akustischer Kenngrößen an einem fahrzeugunabhängigen Prüfstand zur Modellierung der Schallentstehung und Schallausbreitung in Fahrzeugklimaanlagen - Pies, Kai
Vergriffenes Buch, derzeit bei uns nicht verfügbar.
(*)
Pies, Kai:
Bestimmung akustischer Kenngrößen an einem fahrzeugunabhängigen Prüfstand zur Modellierung der Schallentstehung und Schallausbreitung in Fahrzeugklimaanlagen - Taschenbuch

2011, ISBN: 9783844006261

[ED: Taschenbuch], [PU: Shaker], [SC: 0.00], Neuware, gewerbliches Angebot, [GW: 266g], 1., Aufl.

Neues Buch Booklooker.de
verschiedene Anbieter
Versandkosten:Versandkostenfrei, Versand nach Deutschland (EUR 0.00)
Details...
(*) Derzeit vergriffen bedeutet, dass dieser Titel momentan auf keiner der angeschlossenen Plattform verfügbar ist.
Bestimmung akustischer Kenngrößen an einem fahrzeugunabhängigen Prüfstand zur Modellierung der Schallentstehung und Schallausbreitung in Fahrzeugklimaanlagen - Kai Pies
Vergriffenes Buch, derzeit bei uns nicht verfügbar.
(*)
Kai Pies:
Bestimmung akustischer Kenngrößen an einem fahrzeugunabhängigen Prüfstand zur Modellierung der Schallentstehung und Schallausbreitung in Fahrzeugklimaanlagen - Erstausgabe

2011, ISBN: 9783844006261

Taschenbuch, ID: 22260042

[ED: 1], 1., Aufl., Softcover, Buch, [PU: Shaker]

Neues Buch Lehmanns.de
Versandkosten:sofort lieferbar, , Versandkostenfrei innerhalb der BRD (EUR 0.00)
Details...
(*) Derzeit vergriffen bedeutet, dass dieser Titel momentan auf keiner der angeschlossenen Plattform verfügbar ist.

Details zum Buch
Bestimmung akustischer Kenngrößen an einem fahrzeugunabhängigen Prüfstand zur Modellierung der Schallentstehung und Schallausbreitung in Fahrzeugklimaanlagen
Autor:

Kai Pies

Titel:

Bestimmung akustischer Kenngrößen an einem fahrzeugunabhängigen Prüfstand zur Modellierung der Schallentstehung und Schallausbreitung in Fahrzeugklimaanlagen

ISBN-Nummer:

Detailangaben zum Buch - Bestimmung akustischer Kenngrößen an einem fahrzeugunabhängigen Prüfstand zur Modellierung der Schallentstehung und Schallausbreitung in Fahrzeugklimaanlagen


EAN (ISBN-13): 9783844006261
ISBN (ISBN-10): 3844006265
Taschenbuch
Erscheinungsjahr: 2011
Herausgeber: Shaker

Buch in der Datenbank seit 20.11.2012 16:59:53
Buch zuletzt gefunden am 03.07.2017 23:57:47
ISBN/EAN: 9783844006261

ISBN - alternative Schreibweisen:
3-8440-0626-5, 978-3-8440-0626-1


< zum Archiv...
Benachbarte Bücher