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Keywords: sensitivity
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Proceedings Papers

Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-031
..., due to the large number of combinations of modules, locations, and configurations, subsea layouts containing SGBs are difficult to optimize, and subject to uncertainty in inputs such as well and reservoir performance. By using an evolutionary optimization algorithm, a sensitivity analysis...
Proceedings Papers

Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-225
... lateral buckling assessments. INTRODUCTION The lateral buckling response of surface-laid pipelines is very sensitive to the many out-of-straightness (OOS) features that are found along the actual, as-laid configuration of the pipeline. Some of these are vertical features created by the seabed...
Proceedings Papers

Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-236
... sensors have been developed using various mechanisms, including resistive(Wu,2020), capacitive(Shi, 2019), and piezoelectric types(Guo, 2018). Resistive pressure sensors, characterized by high sensitivity, fast response, and simple signal acquisition, play a crucial role in diverse fields. However...
Proceedings Papers

Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-431
.... Especially, the modeling with different fidelities approaches were studied herein in terms of their influence on the SIFs at the crack fronts. Moreover, this study elaborated on the sensitivity of the SIFs due to the consideration of joints’ flexibility. The findings emphasized the viability of employing...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-561
... ABSTRACT The paper studies buckling behaviour of externally pressurized torispherical shells made from auxetic metal (with Negative Poisson's Ratio, NPR). It is shown that the largest gains in magnitude of buckling load are obtained for NPR approaching −1.0. Results quantifying sensitivity...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-151
... considered in this paper occurred in chain which were fully compliant with the existing standards. It is observed however, that an apparent heightened sensitivity to hydrogen cracking which associated with surface damages caused by handling of the chain onshore and offshore, in combination with high load...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-132
... geometry production monitoring hydrodynamic area pile group different water depth particle interaction sumner gap ratio sensitivity ABSTRACT In this study, preliminary results from scaled model tests (1:45) in a 3D-wave-current-basin are presented. A 4-legged jacket model has been...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-112
... highlight key drivers for the viability of a WPAF based on deployment locations and sensitivities to these drivers. INTRODUCTION As the world's population continues to grow, aquaculture—with its ability to produce high-quality low-emissions protein without any specific need for land, freshwater...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-319
... the wave slamming of braces under towing conditions too. The sensitivities of the wave slamming at different wave steepness and wave direction angles under the towing conditions were analyzed. It is found that wave steepness and wave direction angles have significant effects on the wave slamming pressure...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-3170
... Abstract This paper presents an overview of the sensitivity of free-fall lifeboat simulations during free-fall conditions. Using MARIN's time domain XMF framework, simulations are conducted for the VIKING NORSAFE GES50MK3 free-fall lifeboat, which is released from a stationary host. Results...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-4175
... hydrodynamic derivatives to simulate ship manoeuvring motion precisely. In this paper, sensitivity of simulated ship manoeuvring motion using the hydrodynamic derivatives to measurement error included in measured lateral force and yawing moment is investigated. Furthermore, difference of the sensitivity...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-522
... ABSTRACT Sensitivity of ST52 steel for environmental assisted cracking (EAC) is experimentally investigated by slow strain rate tests (SSRT). An experimental set up is introduced and tensile test specimens are prepared according to ASTM E8. The strain rate, duration of cathodic protection (CP...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-316
... the design space for optimal solutions. Structures are developed by procedures including- and excluding a HAZ effect and later compared. The developed structures show distinct differences in terms of geometry, energy absorbed per unit mass, failure mode and sensitivity to HAZ material properties...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-385
... (e.g. Plasticity index ( I p ), Sensitivity of the soil ( S t ), Activity of the soil ( A c ), etc.). Fig. 1a shows some examples of a measured thixotropy strength ratio with different plasticity index and different type of soils which are kaolin, Bentonite, and Gulf of Mexico clay. The thixotropy...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-293
... must be uniform to prevent the likelihood of early failure of the structural components, since the potential loss of structural stability of the axially compressed cylinder has been over the years attributed to their extreme sensitivity to imperfection. The problem of imperfection sensitivity...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-198
... vibration data sensor submarine pipeline vibration sensitivity Long-term Monitoring System of Submarine Pipeline Vibration Based on Fiber Grating Sensor Technology Xiuyi Nie, Yongchun Yang, Yinfeng Cui, Changlong Chen Engineering College, Ocean University of China. Qingdao, Shandong, China. ABSTRACT...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-144
.... Target Variable Definition the target variable is defined, i.e. the property to be studied. E.g., OTW, fatigue life etc. 2. Uncertainty Sources Identification - all sources of uncertainty that can have an impact on the target variable are identified. 3. Sensitivity Assessment sensitivity coefficients...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-605
.... The critical case sensitivity checks were also performed. Wave period sensitivity and environment direction sensitivity (+/-10°) is applied under the selected critical condition from the maximum wind case. In addition, as wave dominant cases are more sensitive to the period change, the sensitivity on wave...
Proceedings Papers

Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-457
... stresses m is known as the sensitivity to mean stresses m* according to Schütz (1967). For welds m* is usually defined in dependence of the applied stress ratios. The sensitivity to mean stresses m* decreases with increasing mean stresses and is described by for -1 R 0 (1) for 0...

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