The Use of Non-Intrusive Phase and Amplitude Demodulation Techniques to Identify Torsional Modes on Machinery under Constant Speed Conditions. Part I. Theory.

Autor:	Archambaulit, R.
Předmět:	TURBOGENERATOR maintenance & repair RESONANT vibration ELECTRIC power production ELECTRIC power ELECTRICITY TORSION balances
Zdroj:	Vibrations; Sep2007, Vol. 23 Issue 3, p7-12, 4p
Abstrakt:	The presence of torsional modes that coincide with excitation frequencies on rotating machinery may impair its operation and lead to a dangerous condition. A non-intrusive method is described to identify in-situ the frequencies of the main torsional modes to validate computational models used to estimate them. The method can also be used to estimate absolute angular displacement and damping as a function of operating conditions. Part I of this article contains the theoretical background of the method. Part II describes two applications. [ABSTRACT FROM AUTHOR]
Databáze:	Supplemental Index
Externí odkaz:	Zobrazit plný text záznamu