ORE Master's Plan A Defense
April 25, 3:00pm - 4:00pmMānoa Campus, POST 723 & Zoom (Please see description for Meeting ID and Passcode)
"Experimental Investigation of Thin-Walled Cylindrical Cantilever Beams Undergoing Vortex-Induced Vibrations" In this study, we experimentally investigate the dynamic response of three low mass ratio hollow cylindrical cantilever beams experiencing vortex-induced vibrations. We conducted experiments using three polycarbonate cylinders with low mass ratios of 0.761, 0.830 and 0.922, respectively. Motion analysis was performed using two high-speed cameras, and motion tracking was facilitated by UV lights for better image quality. Our findings indicate that the IL: CF frequency ratios conform to the conventional 2:1 frequency ratio. However, we also observed 1:1 and 3:1 frequency ratios at low and high reduced velocities. These were accompanied by predominantly small positive and negative lift coefficients in phase with velocity values. The amplitude response aligns with previous literature, although our study reveals that the in-line amplitudes reach higher values due to the cylinders鈥 low mass and damping ratios. We also observed that both cylinders exhibited higher in-line amplitudes at reduced velocities below 3. The results of this study provide important insights for optimizing the design and performance of cylindrical offshore structures. Zoom Meeting ID: 989 0662 3277, Passcode: ClaraMS
Event Sponsor
Ocean and Resources Engineering, Mānoa Campus
More Information
1 (808) 956-7572,
Thursday, April 25 |
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8:15am |
Economics Final Oral Mānoa Campus, Saunders 515
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9:00am |
Community Dialogues 鈥淔ood for Thoughts鈥 with Emi Obana Mānoa Campus, ACCESS Lounge, Dean Hall, room 5/6
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11:00am |
Community Dialogues 鈥淔ood for Thoughts鈥 with Emi Obana Mānoa Campus, Online
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12:00pm |
Lunchbreak Mindfulness Series: The Spring Refresh Mānoa Campus, Online
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12:00pm |
Nursing Practice Final Oral Mānoa Campus, Zoom
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12:00pm |
Brown Bag Biography with 驶Ilima Long Mānoa Campus, KUY 410
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2:00pm |
Natural Resources & Environmental Management Final Oral Mānoa Campus, St. John 11
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2:00pm |
ASUHWO General Senate Meeting West Oʻahu Campus, Student Life Center, C-214 OR Online via Zoom
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3:00pm |
Fulbright Personal Essay Writing Workshop Mānoa Campus, Moore Hall,155B
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3:00pm |
Fulbright Personal Statement Writing Workshop Mānoa Campus, Moore 155B
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3:00pm |
ORE Master's Plan A Defense Mānoa Campus, POST 723 & Zoom (Please see description for Meeting ID and Passcode)
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3:00pm |
Oceanography Seminar Mānoa Campus, Marine Science Building #100
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6:00pm |
An Ocean of Wonder book launch Mānoa Campus, Kuykendall 410
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7:00pm |
Navigators Bible Study Mānoa Campus, Honolulu Christian Church 2207 Oahu Ave, Honolulu, HI 96822
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