Condition monitoring of a water hydraulic cylinder by vibration analysis

Citation
Ach. Tan et al., Condition monitoring of a water hydraulic cylinder by vibration analysis, J TEST EVAL, 28(6), 2000, pp. 507-512
Citations number
18
Categorie Soggetti
Material Science & Engineering
Journal title
JOURNAL OF TESTING AND EVALUATION
ISSN journal
00903973 → ACNP
Volume
28
Issue
6
Year of publication
2000
Pages
507 - 512
Database
ISI
SICI code
0090-3973(200011)28:6<507:CMOAWH>2.0.ZU;2-K
Abstract
This paper attempts to lay some groundwork on reciprocating machines with p articular emphasis on a water hydraulic cylinder. The objective is to diagn ose a worn-out piston seal by means of vibration analysis. Pulsation theory is used to explain the harmonics produced in reciprocating machines. The c ylinder piston seal was removed to simulate actual wearing of the seal. Thi s modified machine was tested for its vibration signals and compared agains t the "healthy condition" state under some loading. Lab-VIEW(R) was used as the software interface. Results show that removing the piston seal caused an increase in magnitude at a fundamental fault-dependant frequency in the amplitude spectra.