Functional data analysis for assessing the fatigue life of construction equipment attachments

In construction machinery, attachments, such as buckets and breakers, that are mounted on the equipment convert the fluid energy of the construction machine into impact energy, vibration energy, etc., depending on the purpose. To ensure the reliability of such attachments under repeated or excessive...

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Bibliographic Details
Published in:Journal of mechanical science and technology 2021, 35(2), , pp.495-506
Main Authors: Kim, Sung-Hyun, Park, Jong-Won, Kim, Jae-Hoon
Format: Article
Language:English
Subjects:
Accelerated tests
Accessories
Algorithms
Buckets
Construction equipment
Control
Data analysis
Dynamical Systems
Engineering
Fatigue life assessment
Fatigue tests
Functional analysis
Industrial and Production Engineering
Mechanical Engineering
Original Article
Vibration
기계공학
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Summary:In construction machinery, attachments, such as buckets and breakers, that are mounted on the equipment convert the fluid energy of the construction machine into impact energy, vibration energy, etc., depending on the purpose. To ensure the reliability of such attachments under repeated or excessive stress, the fatigue life of the structure must be evaluated in terms of strength and rigidity. The present study focused on symmetric structures. A functional analysis was performed on the field data obtained from the construction machine with an attached vibration hammer, and the fatigue life of the symmetric bracket was assessed. The results were used to develop an accelerated fatigue-life test algorithm for the prediction and health management. Residual-useful-life prognostics of basic data in the prediction of life and failure of attachments used in construction machinery as well as the integrity management of their symmetric structures.
ISSN:1738-494X
1976-3824
DOI:10.1007/s12206-021-0108-0