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On One-dimensional Sound Analysis of a Duct Network with Helmholtz Resonators 寺尾, 道仁 Terao, Michihito 関根, 秀久 Sekine, Hidehisa 大川, 真平 Okawa, Shinpei 林, 大志 Hayashi, Daiji The outer orifice correction for Helmholtz resonators attached to the sidewall ofcircular ducts was studied. For the outer orifice correction when the axis direction ofthe orifice coincides with that of the duct, .explicit expressions were given by Ingard and Rschevkin. But their application to duct sections with duct-sidewall resonators is beyond their premise. An explicit expression ofthe outer orifice correction for duct-sidewall resonators was derived by conducting three-dimensional boundary-element analyses. Application ofthis outer orifice correction improves significantly the accuracy of the one-dimensional wave analysis for the acoustic properties of duct sections which have sidewall resonators. Article 会議名称:The 31th International Congress and Exposition on Noise Control Engineering : additional proceedings, Sound Quality Symposium 2002 主催学会:INCE/USA Institute of Noise Control Engineering 2002 eng conference paper VoR http://hdl.handle.net/10487/7912 https://kanagawa-u.repo.nii.ac.jp/records/3201 Proceedings of INTER-NOISE 2002 : August 22, 2002 Dearborn, Michigan, USA, https://kanagawa-u.repo.nii.ac.jp/record/3201/files/17 inter･noise200208.pdf application/pdf 416.2 kB 2018-11-16