衝撃的な振動を伴う低速回転機械診断法に関する研究(第1報): ローラチェーン伝動装置を有する低速回転機械の振動特徴解明

摘要

本研究では，チェーン伝動機構などを有し，衝撃的な振動を伴う低速回転機械の軸受診断法を確立するために，チェーン伝動機構付きの低速回転機械診断実験装置を用い，人工的に施した各種の軸受異常状態および正常状態における低速回転時の振動信号を測定し，従来の包絡線スぺクトルおよびP(t)波形のスぺクトルの解析，およびp(t)波形の歪度•尖度解析によりその振動特徴の解明を行い，有効な診断法の確立にとって有用な知見を得ようとする。%In order to establish condition diagnosis method of low speed rotating machine with shocking vibration, the vibration signals of bearings made artificially flaws are measured in an experiment equipment of low speed rotating machine with roller chain driving equipment. The spectrum analysis of enveloped waves and p(t) waves of the vibration signals are carried out to clarify the spectrum feature for fault diagnosis. The skewness and kurtosis of p(t) waves also calculated for the condition surveillance and fault detection of the low speed rotating machine with roller chain driving equipment. By these analyses, the useful knowledge is obtained for establishing the condition diagnosis method of the low speed rotating machine with shocking vibration in the near future.