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Keywords: accelerometer
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Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-1231
... of accelerometers, one at the level of the turbine nacelle, and the other near the still water level 1.90 1.90 - (SWL). Each array comprises 3 accelerometers, in order to record acceleration in all three axes of motion. Each accelerometer was a 2.00 2.00 - closed loop system, with a response DC-550 Hz flat...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-1201
... responsibility accelerometer modal frequency structural modal frequency spectrogram artificial intelligence frequency metrology mast taiwan power company long-term structural vibration monitoring investigation vibration wind turbine offshore structure structural vibration Long-term Structural...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-698
.... standstill analysis wind turbine accelerometer domain method mrwt matrix campbell diagram machine learning algorithm frequency artificial intelligence renewable energy operational modal analysis frequency domain decomposition wind energy modal parameter rotor speed multi-rotor wind turbine...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-553
... operations, the design uses a winch as the underwater control center, the MEMS accelerometer is placed in a cylindrical pressure chamber, and multiple sensors in the same direction form a sensor array with a coil wound on the winch. The ROV robot is used for stretching and is distributed by the motor...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-060
... briefly make a literature review, investigate the mechanics of grout connections, and conceptually describe the development of the proposed method for monitoring the robustness of GC. accelerometer subsea system wind energy sensor time-frequency analysis offshore projects planning...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-261
... ABSTRACT For early recognition of flow regime in pipeline-riser system, use of signals from accelerometers are suggested instead of a commonly used pressure gauge signal. A main factor that discriminates between stable flow and severe slugging is drastically decreased vibration in liquid...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-637
... ABSTRACT In this study, a FIR filter based displacement estimation technique is proposed to estimate displacement from distributed strain sensors and an accelerometer. First, the neutral axis location of a structure is estimated from strain and acceleration measurements using recursive least...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-024
... accuracy strong tracking particle filter true value particle filter remotely operated vehicle accelerometer subsea system white noise Improved Particle Filter in Full-Depth Autonomous Underwater Vehicle Integrated Navigation Zonglin Liu1, Nailong Wu1, Chao Wu1, Rui Miao2, Tong Ge1 1 School...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-121
.... In the present study we only consider the simplest configuration, a top-tensioned bare riser with pinned boundary condition (Yin et al., 2018). eigenfrequency riser model strain gauge dynamic response amplitude vessel motion accelerometer vibration model test viv response test 1010 top end...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-174
...Experimental Study on Seafloor Vertical Deformation Monitoring Based on MEMS Accelerometer Array Chunying Xu, Jiawang Chen*, Huangchao Zhu, Houhong Liu Ocean College, Zhejiang University, Zhoushan, Zhejiang, China ABSTRACT Seafloor vertical deformation is important during the methane hydrate...
Proceedings Papers

Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-481
... analyzed in order to assess their variability during the life of the platform. The variation of mode shapes and main periods can be related to the damage of structural elements (columns and bracings) or to mass variations. The position of accelerometers can be optimized to detect, if any, different...
Proceedings Papers

Paper presented at the The 26th International Ocean and Polar Engineering Conference, June 26–July 2, 2016
Paper Number: ISOPE-I-16-421
... the performance of sonar systems that equip a UUV. Therefore it is necessary to reduce the self-radiated noise of the UUV for its high level performance. frf experiment analysis frequency response function accelerometer transfer function okpo 300 excitation point 4 sensor vibration acceleratoin...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-287
... vertical or rotary steerable drilling. We developed a strap-down multi-model surveying system to measure the attitude of bottom rotating drillstring, equipped with triaxial accelerometer, triaxial fluxgate and gyroscopes. Through laboratory tests, the theoretical model can be verified satisfactorily when...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-660
.... This turbine was investigated both in a perfect isotropic condition where all blades have identical properties as well as an imbalanced edition where one blade had increased mass. accelerometer renewable energy contribution hansen rotor speed campbell diagram rotor larsen configuration...
Proceedings Papers

Paper presented at the The Twenty-fourth International Ocean and Polar Engineering Conference, June 15–20, 2014
Paper Number: ISOPE-I-14-032
... temperature is above 75 C. gyroscope lefevre attitude matrix sensor log analysis imaging tool orientation application upstream oil & gas fgat fiber coil cased well coordinate system phase shift inertial navigation unit information open hole rotation accelerometer azimuth control...
Proceedings Papers

Paper presented at the The Twenty-fourth International Ocean and Polar Engineering Conference, June 15–20, 2014
Paper Number: ISOPE-I-14-149
... fabrication yard motion response liquified natural gas acceleration measurement module wave height procedure ocean transportation performance indicator acceleration monitoring wind speed criteria strategic planning and management artificial intelligence accelerometer lng design criteria gas...
Proceedings Papers

Paper presented at the The Twenty-third International Offshore and Polar Engineering Conference, June 30–July 5, 2013
Paper Number: ISOPE-I-13-213
... and a sensor part which is composed of optical gyroscopes and accelerometers as the inertial sensors. The navigation information is derived by the arithmetic part using outputs of the sensor part. So the sensor part determines the position accuracy of the INS. In particular, the precision of optical gyros...
Proceedings Papers

Paper presented at the The Twenty-third International Offshore and Polar Engineering Conference, June 30–July 5, 2013
Paper Number: ISOPE-I-13-289
.... Finally, the results of the experiment are presented. sensor unstable launch condition hil system motion simulator ahr accelerometer attitude vehicle simulator verification 3-axe motion simulator pitch angle body frame alignment initial alignment algorithm scenario alignment...
Proceedings Papers

Paper presented at the The Twenty-third International Offshore and Polar Engineering Conference, June 30–July 5, 2013
Paper Number: ISOPE-I-13-148
... of the measure quantities obtained during the operation of the SNMR are presented and preliminary assessed. relative displacement mooring system peak value transducer time interval time series production logging industrial computer subsea system structural integrity accelerometer sensor...
Proceedings Papers

Paper presented at the The Twenty-third International Offshore and Polar Engineering Conference, June 30–July 5, 2013
Paper Number: ISOPE-I-13-262
... by mechanical pulse speedometer and accelerometer, which heritage good filtering property and following feature of both algorithms, noise immunity has been enhanced as well. Laboratory digital simulation and test pool object experiment all validate the superiority of the method by showing better filtering speed...

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