Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | Canadian Society for Civil Engineering Annual Conference 2016 |
| Untertitel | Resilient Infrastructure |
| Seiten | 1782-1792 |
| Seitenumfang | 11 |
| ISBN (elektronisch) | 9781510843592 |
| Publikationsstatus | Veröffentlicht - 2016 |
| Veranstaltung | Canadian Society for Civil Engineering Annual Conference 2016: Resilient Infrastructure - London, Kanada Dauer: 1 Juni 2016 → 4 Juni 2016 |
Publikationsreihe
| Name | Proceedings, Annual Conference - Canadian Society for Civil Engineering |
|---|---|
| Band | 3 |
Abstract
Debris impact on structures have been reported and shown to be a major reason for structural failure in many postmortem site assessments of tsunami devastated communities. However, due to the random nature of the debris motion, determining areas at-risk for debris impact is difficult. This paper presents a novel camera-based object tracking algorithm which allows for the quick and accurate tracking of debris trajectory in highly turbulent flows. The algorithm was used to determine debris motion observed during an experimental program on the displacement of scaled-down shipping containers (debris), carried out by the authors in the Tsunami Wave Basin at Waseda University, Tokyo, Japan. This study evaluated the effect of the initial orientation and number of debris on the time histories of their trajectory, orientation and velocity. The study found that, while random in nature, the motion of the debris was highly repeatable through the various tests conducted. An increase in the number of debris resulted in a higher peak debris velocity. Setting the initial orientation of the long-axis of the debris perpendicular to the flow direction resulted in an earlier and higher peak velocity than in the case of the debris initially oriented parallel to the direction of the flow.
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Canadian Society for Civil Engineering Annual Conference 2016: Resilient Infrastructure. 2016. S. 1782-1792 (Proceedings, Annual Conference - Canadian Society for Civil Engineering; Band 3).
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - Optical tracking of debris in extreme hydrodynamic conditions
AU - Stolle, Jacob
AU - Nistor, Loan
AU - Goseberg, Nils
PY - 2016
Y1 - 2016
N2 - Debris impact on structures have been reported and shown to be a major reason for structural failure in many postmortem site assessments of tsunami devastated communities. However, due to the random nature of the debris motion, determining areas at-risk for debris impact is difficult. This paper presents a novel camera-based object tracking algorithm which allows for the quick and accurate tracking of debris trajectory in highly turbulent flows. The algorithm was used to determine debris motion observed during an experimental program on the displacement of scaled-down shipping containers (debris), carried out by the authors in the Tsunami Wave Basin at Waseda University, Tokyo, Japan. This study evaluated the effect of the initial orientation and number of debris on the time histories of their trajectory, orientation and velocity. The study found that, while random in nature, the motion of the debris was highly repeatable through the various tests conducted. An increase in the number of debris resulted in a higher peak debris velocity. Setting the initial orientation of the long-axis of the debris perpendicular to the flow direction resulted in an earlier and higher peak velocity than in the case of the debris initially oriented parallel to the direction of the flow.
AB - Debris impact on structures have been reported and shown to be a major reason for structural failure in many postmortem site assessments of tsunami devastated communities. However, due to the random nature of the debris motion, determining areas at-risk for debris impact is difficult. This paper presents a novel camera-based object tracking algorithm which allows for the quick and accurate tracking of debris trajectory in highly turbulent flows. The algorithm was used to determine debris motion observed during an experimental program on the displacement of scaled-down shipping containers (debris), carried out by the authors in the Tsunami Wave Basin at Waseda University, Tokyo, Japan. This study evaluated the effect of the initial orientation and number of debris on the time histories of their trajectory, orientation and velocity. The study found that, while random in nature, the motion of the debris was highly repeatable through the various tests conducted. An increase in the number of debris resulted in a higher peak debris velocity. Setting the initial orientation of the long-axis of the debris perpendicular to the flow direction resulted in an earlier and higher peak velocity than in the case of the debris initially oriented parallel to the direction of the flow.
KW - Coastal engineering
KW - Debris
KW - Debris motion
KW - Impact force
KW - Object tracking
KW - Physical modeling
KW - Tsunami
UR - http://www.scopus.com/inward/record.url?scp=85030692419&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85030692419
T3 - Proceedings, Annual Conference - Canadian Society for Civil Engineering
SP - 1782
EP - 1792
BT - Canadian Society for Civil Engineering Annual Conference 2016
T2 - Canadian Society for Civil Engineering Annual Conference 2016: Resilient Infrastructure
Y2 - 1 June 2016 through 4 June 2016
ER -