Process for early detection of damage to machine parts

Details Process for early detection of damage to machine parts Process for early detection of damage to machine parts

1990-02-27

1991-10-22

Williams, Hezron E.

Measuring and testing

Vibration

Sensing apparatus

73660, 73584, 340682, G01N 2904

Patent

active

050584340

ABSTRACT:
In a process for early detection of damage top machine parts, particularly rolling element bearings, vibrations are detected by means of a vibration pickup in order to make it possible to describe the present condition of the machine part as well as to estimate the remaining service life of the machine part. The picked-up signals are broken down into periodically determined stochastic and generally stochastic signal components. The signal components for determining the parameters for the stress of the machine part are examined as a function of time and the ascertained stress parameters are compared with characteristics values for the permissible stress of the machine part for purposes of determining the type of damage and/or for determining the extent of the damage.

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"Treunnung von Beanspruchungs-Zeit-Funktionen nach ihrem Ursung" Separation of Stress-time functions according to their source.).
Konstruktion, Band 31, Nr.9,1979 Seiten 345-351, Buxmaum et al., "Trennung von Beanspruchungs-Zeit-Funktionen nach ihrem Ursprung".
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