Fatigue life estimate of landing Gear's leg using modal analysis
The present work concerns solving Noise, Vibration and Harshness (NVH) and fatigue based on Power Spectrum Density (PSD) analysis of a landing gear's leg for an Un-Manned Aerial Vehicle (UAV). This analysis includes random vibration and high-cycle fatigue analysis in a random vibration environm...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MULTIPHYSICS
2016-09-01
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| Series: | International Journal of Multiphysics |
| Online Access: | http://journal.multiphysics.org/index.php/IJM/article/view/258 |
| _version_ | 1797757548530499584 |
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| author | E Al-Bahkali H Elkenani M Souli |
| author_facet | E Al-Bahkali H Elkenani M Souli |
| author_sort | E Al-Bahkali |
| collection | DOAJ |
| description | The present work concerns solving Noise, Vibration and Harshness (NVH) and fatigue based on Power Spectrum Density (PSD) analysis of a landing gear's leg for an Un-Manned Aerial Vehicle (UAV). This analysis includes random vibration and high-cycle fatigue analysis in a random vibration environment.
In this analysis, the cumulative damage ratio is computed using material S-N (Stress-Number of cycles) fatigue curve. Dirlik method is used for the analysis of lifetime as it is proven to provide accurate results for large number of applications, both in automotive and aerospace industry. It is also compared to other methods that have been developed in LS-DYNA® as well. The input acceleration PSD data are provided through measurements.
The obtained analysis results shows that although the landing gear design is safe according to dynamic and static load, its service life is about 3037 hours due to random vibration effect. |
| first_indexed | 2024-03-12T18:17:20Z |
| format | Article |
| id | doaj.art-9df49451f9eb4a449400f7bcb6abd7a9 |
| institution | Directory Open Access Journal |
| issn | 1750-9548 2048-3961 |
| language | English |
| last_indexed | 2024-03-12T18:17:20Z |
| publishDate | 2016-09-01 |
| publisher | MULTIPHYSICS |
| record_format | Article |
| series | International Journal of Multiphysics |
| spelling | doaj.art-9df49451f9eb4a449400f7bcb6abd7a92023-08-02T09:04:27ZengMULTIPHYSICSInternational Journal of Multiphysics1750-95482048-39612016-09-018210.1260/1750-9548.8.2.231270Fatigue life estimate of landing Gear's leg using modal analysisE Al-Bahkali0H Elkenani1M Souli2Department of Mechanical Engineering King Saud University P.O. Box 800, Riyadh 11421, Saudi Arabia.Department of Mechanical Engineering King Saud University P.O. Box 800, Riyadh 11421, Saudi Arabia.3Laboratoire de Mécanique, de Lille, UMR CNRS 8107, Villeneuve d’Ascq, France.The present work concerns solving Noise, Vibration and Harshness (NVH) and fatigue based on Power Spectrum Density (PSD) analysis of a landing gear's leg for an Un-Manned Aerial Vehicle (UAV). This analysis includes random vibration and high-cycle fatigue analysis in a random vibration environment. In this analysis, the cumulative damage ratio is computed using material S-N (Stress-Number of cycles) fatigue curve. Dirlik method is used for the analysis of lifetime as it is proven to provide accurate results for large number of applications, both in automotive and aerospace industry. It is also compared to other methods that have been developed in LS-DYNA® as well. The input acceleration PSD data are provided through measurements. The obtained analysis results shows that although the landing gear design is safe according to dynamic and static load, its service life is about 3037 hours due to random vibration effect.http://journal.multiphysics.org/index.php/IJM/article/view/258 |
| spellingShingle | E Al-Bahkali H Elkenani M Souli Fatigue life estimate of landing Gear's leg using modal analysis International Journal of Multiphysics |
| title | Fatigue life estimate of landing Gear's leg using modal analysis |
| title_full | Fatigue life estimate of landing Gear's leg using modal analysis |
| title_fullStr | Fatigue life estimate of landing Gear's leg using modal analysis |
| title_full_unstemmed | Fatigue life estimate of landing Gear's leg using modal analysis |
| title_short | Fatigue life estimate of landing Gear's leg using modal analysis |
| title_sort | fatigue life estimate of landing gear s leg using modal analysis |
| url | http://journal.multiphysics.org/index.php/IJM/article/view/258 |
| work_keys_str_mv | AT ealbahkali fatiguelifeestimateoflandinggearslegusingmodalanalysis AT helkenani fatiguelifeestimateoflandinggearslegusingmodalanalysis AT msouli fatiguelifeestimateoflandinggearslegusingmodalanalysis |