Comparison of Fatigue Analysis Results in the Frequency Domain using PSD data and speciβic load

Joon Jang, Jae Myung Cho, Won Woong Lee and Woo Chun Choi
Additional contact information
Joon Jang: School of Mechanical Engineering, Korea University, Seoul, Korea
Jae Myung Cho: HANWHA Systems, Gyeonggi-do, Korea
Won Woong Lee: HANWHA Systems, Gyeonggi-do, Korea
Woo Chun Choi: School of Mechanical Engineering, Korea University, Seoul, Korea

Journal of ICT, Design, Engineering and Technological Science, 2019, vol. 3, issue 1, 6-10

Abstract: This study investigated the axial sensitivity of the aircraft structure to fatigue. Fatigue analysis for an aircraft needs to be done during a design stage to prevent fatigue failure during operation. Fatigue analysis can be done in a time domain or a frequency domain, and frequency domain analysis is more frequently used. Frequency domain analysis for an aircraft normally uses PSD data translated from the vibration experienced for its whole lifetime. If vibration information is insufficient in the PSD, it is supplemented by adding specific loads. In this study, the analysis was done using the PSD data with 7 different additional loads. The life was sensitive to the magnitude and direction of the load, and some loads increase the life. It was found that the aircraft structure is safe from fatigue failure. Since the fatigue test has not yet been carried out, further testing should be done. Also, further study will investigate how to quantify the sensitivity ratio of direction and magnitude of loads under various conditions.

Keywords: Frequency Domain; Fatigue Analysis; PSD; POD Structure (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://jitdets.com/ojs/index.php/jitdets/article/view/36 (application/pdf)
https://jitdets.com/ojs/index.php/jitdets/article/view/36/32 (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:avb:jitdet:2019:p:6-10

DOI: 10.33150/JITDETS-3.1.2

Access Statistics for this article

Journal of ICT, Design, Engineering and Technological Science is currently edited by Juhriyansyah Dalle

More articles in Journal of ICT, Design, Engineering and Technological Science from Juhriyansyah Dalle Calle Alarcon 66, Sant Adrian De Besos 08930, Barcelona Spain.
Bibliographic data for series maintained by Juhriyansyah Dalle ().