Title:
圧力変動吸収構造体
Document Type and Number:
Japanese Patent JP7352925
Kind Code:
B2
Abstract:
[Problem] To provide a pressure variation absorbing structure in which it is possible to prevent degradation in pressure variation absorbing performance caused by an air current on a surface and to prevent deviation of a resonance frequency. [Solution] A sound absorbing panel 1 is configured by bonding a thin film 20a to a surface of a sound absorbing panel body 10 using, for example, a bonding agent. The sound absorbing panel body 10 has a sound absorbing hole 14 in the surface thereof. A large number of small holes 21 are formed in the thin film 20, and a plurality of small holes 21 are formed in a region R14 corresponding to at least the hole 14.
Inventors:
Tatsuya Ishii
Hideji Ikunuma
Kenichiro Nagai
Shunji Enomoto
Hideji Ikunuma
Kenichiro Nagai
Shunji Enomoto
Application Number:
JP2018226694A
Publication Date:
September 29, 2023
Filing Date:
December 03, 2018
Export Citation:
Assignee:
Japan Aerospace Exploration Agency
International Classes:
G10K11/16; B32B5/32; B64C1/40; B64D33/00; G10K11/172
Domestic Patent References:
| JP2019028176A | ||||
| JP2015007791A | ||||
| JP2016536624A | ||||
| JP2016213829A | ||||
| JP2003295867A |
Foreign References:
| US6182787 |
Attorney, Agent or Firm:
Patent Attorney Corporation Minami Aoyama International Patent Office