338 音響を用いた小型DC ファンの品質診断

• 若杉 基生

  鶴岡高専専攻科

• 柳本 憲作

  鶴岡高専

• 高橋 政行

  オリエンタルモータ

• 渡部 誠二

  鶴岡高専

• 坂本 秀一

  新潟大

書誌事項

タイトル別名

• 338 Sound Diagnostics for Micro DC Fan

抄録

This paper describes an acoustic diagnosis for a failure aerodynamic sound in a micro DC fan motor assembly line. The failure sound is caused by assembly accuracy of which an eccentricity of fan casing, a yawing of fan blade, etc. Proposed acoustic diagnosis technique is used to Adaptive Line Enhancer (ALE) to extract a periodic abnormal signal including aerodynamic noise generated by rotating a micro DC fan motor. Then, this research performed improvement in a S/N ratio in sound diagnosis of a micro DC fan using adaptive line enhancer. Consequently, the noise signal is not correlative in time decreased by about 10dB, the typical periodic signal with high correlation was acquired as an output signal, and it was cleared that this periodic signal could be used for unusual diagnosis.

収録刊行物

• Dynamics & Design Conference

  Dynamics & Design Conference 2005 (0), _338-1_-_338-4_, 2005

  一般社団法人 日本機械学会

キーワード

• Fan
• Sound Diagnostics
• Adaptive Line Enhancer

詳細情報

• CRID: 1390001205889895680
• NII論文ID: 110006655276
• DOI: 10.1299/jsmedmc.2005._338-1_
• ISSN: 24242993
• Web Site: https://www.jstage.jst.go.jp/article/jsmedmc/2005/0/2005__338-1_/_pdf
• 本文言語コード: ja
• 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