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Inftech."],"published-print":{"date-parts":[[2021,6]]},"abstract":"<jats:title>Zusammenfassung<\/jats:title><jats:p>Das heutige Wissen \u00fcber den akustischen Einfluss von Kantenabsorbern auf ein Schallfeld basiert haupts\u00e4chlich auf empirischen Erfahrungen. Da es kein rechnerisches Modell f\u00fcr Kantenabsorber gibt, wird diese Art von Absorbern leider nur z\u00f6gerlich in der raumakustischen Planung eingesetzt.<\/jats:p><jats:p>Dieser Beitrag untersucht das Absorptionsverhalten von Kantenabsorbern systematisch und schl\u00e4gt einen Ansatz f\u00fcr ein rechnerisches Modell f\u00fcr Kantenabsorber in einfachen Raumgeometrien vor. F\u00fcr die systematischen Untersuchungen wurde ein modularer Kantenabsorber entwickelt und konstruiert. Im Entwicklungsprozess wurden optimale Parameter f\u00fcr den Str\u00f6mungswiderstand, das Perforationsverh\u00e4ltnis des Absorbergeh\u00e4uses und die Schichtdicke des eingebauten por\u00f6sen Materials gefunden. Durch das Baukastenprinzip des entwickelten Kantenabsorbers ist ein flexibler Aufbau m\u00f6glich.<\/jats:p><jats:p>Es wurden verschiedene Konfigurationen des modularen Kantenabsorbers im Hallraum gemessen. Das akustische Verhalten des Kantenabsorbers wurde in mehreren H\u00f6rs\u00e4len ermittelt. Es konnte festgestellt werden, dass die \u00e4quivalente Absorptionsfl\u00e4che pro L\u00e4ngeneinheit sowie die untere Grenzfrequenz des Kantenabsorbers abh\u00e4ngig von der Einbautiefe und der jeweiligen Montagekante des Kantenabsorbers sind. Au\u00dferdem ist die Bandbreite f\u00fcr die effektive Absorption von den Abmessungen des Kantenabsorbers abh\u00e4ngig.<\/jats:p><jats:p>Der modulare Kantenabsorber wurde bei einer raumakustischen Sanierung eingesetzt und Vorher-Nachher-Messungen wurden durchgef\u00fchrt, um die Effektivit\u00e4t des Kantenabsorbers zu best\u00e4tigen.<\/jats:p>","DOI":"10.1007\/s00502-021-00878-1","type":"journal-article","created":{"date-parts":[[2021,3,25]],"date-time":"2021-03-25T22:06:12Z","timestamp":1616709972000},"page":"162-170","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Systematische Untersuchungen zur Funktionsweise des Kantenabsorbers als \u201eModenbremse\u201c","Systematic investigations of the functional principle of the edge absorber as a \u201cmodal brake\u201d"],"prefix":"10.1007","volume":"138","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8711-9164","authenticated-orcid":false,"given":"Eric","family":"Kurz","sequence":"first","affiliation":[]},{"given":"Gerhard","family":"Graber","sequence":"additional","affiliation":[]},{"given":"Werner","family":"Weselak","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2021,3,25]]},"reference":[{"issue":"2","key":"878_CR1","doi-asserted-by":"publisher","first-page":"266","DOI":"10.1103\/PhysRev.23.266","volume":"23","author":"R. 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