Abstract
internal fluctuating nature of ice force in conjunction with the relative velocity caused by the structure as an external effect. Three distinct structural responses, quasi-static, steady-static and random modes have been captured during ice-structure interaction. And the key behaviour, ice force frequency lock-in phenomenon during ice-induced vibrations (IIV) is also observed. General results show good agreement with those in full-scale and small-scale experiments as well as in numerical models.
| Language | English |
|---|---|
| Pages | 147-152 |
| Number of pages | 6 |
| Journal | Ocean Engineering |
| Volume | 128 |
| Early online date | 25 Oct 2016 |
| DOIs | |
| Publication status | Published - 1 Dec 2016 |
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Keywords
- ice-structure interaction
- ice-induced vibrations
- Van der Pol equation
- frequency lock-in
- resonance
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A dynamic ice-structure interaction model for ice-induced vibrations by using Van der Pol equation. / Ji, Xu; Oterkus, Erkan.
In: Ocean Engineering, Vol. 128, 01.12.2016, p. 147-152.Research output: Contribution to journal › Article
TY - JOUR
T1 - A dynamic ice-structure interaction model for ice-induced vibrations by using Van der Pol equation
AU - Ji, Xu
AU - Oterkus, Erkan
PY - 2016/12/1
Y1 - 2016/12/1
N2 - A dynamic single degree-of-freedom ice-structure interaction model is developed based on a novel physical mechanism combination between self-excited vibration and forced vibration. Van der Pol equation, together with ice stress-strain rate curve and ice-velocity failure length are coupled to model theinternal fluctuating nature of ice force in conjunction with the relative velocity caused by the structure as an external effect. Three distinct structural responses, quasi-static, steady-static and random modes have been captured during ice-structure interaction. And the key behaviour, ice force frequency lock-in phenomenon during ice-induced vibrations (IIV) is also observed. General results show good agreement with those in full-scale and small-scale experiments as well as in numerical models.
AB - A dynamic single degree-of-freedom ice-structure interaction model is developed based on a novel physical mechanism combination between self-excited vibration and forced vibration. Van der Pol equation, together with ice stress-strain rate curve and ice-velocity failure length are coupled to model theinternal fluctuating nature of ice force in conjunction with the relative velocity caused by the structure as an external effect. Three distinct structural responses, quasi-static, steady-static and random modes have been captured during ice-structure interaction. And the key behaviour, ice force frequency lock-in phenomenon during ice-induced vibrations (IIV) is also observed. General results show good agreement with those in full-scale and small-scale experiments as well as in numerical models.
KW - ice-structure interaction
KW - ice-induced vibrations
KW - Van der Pol equation
KW - frequency lock-in
KW - resonance
U2 - A Dynamic Ice-Structure Interaction Model for Ice-Induced Vibrations by Using Van der Pol Equation
DO - A Dynamic Ice-Structure Interaction Model for Ice-Induced Vibrations by Using Van der Pol Equation
M3 - Article
VL - 128
SP - 147
EP - 152
JO - Ocean Engineering
T2 - Ocean Engineering
JF - Ocean Engineering
SN - 0029-8018
ER -