Title:
動翼静翼干渉騒音低減システムおよび飛行体
Document Type and Number:
Japanese Patent JP6826067
Kind Code:
B2
Abstract:
According to one embodiment, a rotor-stator blade interference noise reduction system includes a plurality of rotor blades rotating around a center axis, a plurality of stator blades facing the plurality of rotor blades and being equal in number to the plurality of rotor blades, a plurality of speakers installed approximately along a rotor blade plane defined by the plurality of rotor blades rotating and generating control sound, and an evaluation microphone, in which a distance from the evaluation microphone to one of the plurality of speakers, a distance from the evaluation microphone to another of the plurality of speakers, and a distance from the evaluation microphone to the center axis, are approximately equal.
Inventors:
Tatsuhiko Goto
Akihiko Ebado
Akihiko Ebado
Application Number:
JP2018052482A
Publication Date:
February 03, 2021
Filing Date:
March 20, 2018
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
G10K11/178; B64D33/00
Domestic Patent References:
| JP2001142469A |
Attorney, Agent or Firm:
Kurata Masatoshi
Nobuhisa Nogawa
Takashi Mine
Naoki Kono
Tadashi Inoue
Ukai Ken
Nobuhisa Nogawa
Takashi Mine
Naoki Kono
Tadashi Inoue
Ukai Ken