Open AccessFracture Failure Analysis of Flameproof Enclosure of Hydraulic Pump Regulator
Author(s) -
Yufei Wang,
Yu Wang
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/768/2/022064
Subject(s) - enclosure , structural engineering , engineering , vibration , fatigue testing , forensic engineering , electrical engineering , physics , quantum mechanics
A flameproof enclosure of hydraulic pump regulator has undergone a durable vibration fatigue test. Lugs have been found dropped during the test before the expected life. Failure analysis has been carried out by means of macro and micro observation, energy disperse spectrum analysis, metallographic examination and hardness test. The reason of the failure is the fatigue resistance of this flameproof enclosure is not enough to endure the test. According to suggestions, a new structure flameproof enclosure has been improved to instead of the flanging lugs. The improved new one has passed the vibration test successfully.