-
- YANAGIMOTO Kensaku
- Dept. of Control and Information Eng., Tsuruoka National College of Technology
-
- WATANABE Seiji
- Dept. of Control and Information Eng., Tsuruoka National College of Technology
-
- TAKAHASHI Masayuki
- Dept. of Control and Information Eng., Tsuruoka National College of Technology
-
- SAKAMOTO Shuichi
- Dept. of Control and Information Eng., Tsuruoka National College of Technology
抄録
This paper describes sound quality changes caused by a sound aerodynamic failure in a micro-axial fan when applying acoustic diagnostic methods at a cooling fan motor assembly line. The aerodynamic failure sound was focused to a rotational fan blade tone and a blade passing noise with a change in the fan blade run-out. Experimentally obtained results clarified the correlation between the sound quality metrics (Sharpness, Roughness, Fluctuation strength, Tone-to-noise ratio) and the blade run-out. Furthermore, an acoustic diagnosis technique for fan blade run-out is proposed using an adaptive spectrum enhancer. This proposed acoustic diagnosis technique is used for an adaptive feedback algorithm using an internal model control architecture to extract an abnormal periodic signal including aerodynamic sound generated by a rotating micro-axial fan. The experimentally obtained results show that the blade passing sound signal with the blade run-out change was improved by about 10 dB using this adaptive feedback algorithm.
収録刊行物
-
- Journal of Environment and Engineering
-
Journal of Environment and Engineering 7 (1), 1-11, 2012
一般社団法人 日本機械学会
- Tweet
キーワード
詳細情報 詳細情報について
-
- CRID
- 1390001205262918528
-
- NII論文ID
- 130002071675
-
- DOI
- 10.1299/jee.7.1
-
- ISSN
- 1880988X
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可