Process for early detection of damage to machine parts
US5058434A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 27, 1990 |
| Grant date | Oct 22, 1991 |
| Priority date | — |
| Expiry date | Feb 27, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N29/52
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.