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Luis Alberto Vargas-León and Juan Diego Giraldo-Osorio
In this work, the influence of the El Niño Southern Oscillation (ENSO) on the Extreme Precipitation Indices (EPIs) was analyzed, and these ENSO-forced anomalies were compared with the long-term change in the EPIs. The annual time series of the EPIs were ...
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Lixiong Gu, Chunguang Dong, Yi Zhang, Xiaoxia Zhen, Guiyuan Liu and Jianyi Ji
An approach is presented to investigate the 1:2 internal resonance of the sling and beam of a suspension sling?beam system. The beam was taken as the geometrically linear Euler beam, and the sling was considered to be geometrically nonlinear. The dynamic...
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Chenghua Cong, Honggang Qin and Xingyou Yi
The unsteady characteristics of the second throat of a transonic wind tunnel have an important influence on the design and test of the wind tunnel. Therefore, the forced oscillation characteristics were studied by a numerical simulation method. The gover...
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Fernando Lopes, Vincent Courtillot, Dominique Gibert and Jean-Louis Le Mouël
In this paper, the 1978?2022 series of northern (NHSI) and southern (SHSI) hemisphere sea ice extent are submitted to singular spectral analysis (SSA). The trends are quasi-linear, decreasing for NHSI (by 58,300 km2
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Woo Chul Chung, Chungkuk Jin and MooHyun Kim
This study suggests a novel riser structural health monitoring methodology based on a dual algorithm (DA). In this method, the displacement tracing algorithm first traces the node displacement and tension up to the last sensor position called the target ...
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Kun Liu, Haizhi Liang, Jingpin Ou, Jiawei Ye and Dongjiao Wang
Heave plates are widely used for improving the sea keeping performance of ocean structures. In this paper, a novel tuned heave plate energy harvesting system (THPEH) is presented for the motion suppression and energy harvesting of a semi-submersible plat...
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Rolf Bader and Niko Plath
The influence of internal damping on the vibration of a piano soundboard is investigated using a Finite-Difference Time Domain (FDTD) physical model and experimental measurements. The damping constant of the model is varied according to a range similar t...
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Nadhie Juliawan, Hyoung-Seog Chung, Jae-Woo Lee and Sangho Kim
This paper focuses on estimating dynamic stability derivatives using a computational fluid dynamics (CFD)-based force oscillation method, and on separating the coupled dynamic derivatives terms obtained from the method. A transient RANS solver is used to...
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Krish Thiagarajan and Javier Moreno
The research problem discussed in this paper is of relevance to floating offshore wind turbine design, where heave plates are attached to the columns of a semi-submersible in order to improve vertical plane stability and the power output. Because of the ...
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Keqi Hu, Yuanqi Fang, Yao Zheng, Gaofeng Wang and Stéphane Moreau
As an indirect noise source generated in the combustion chamber, entropy waves are widely prevalent in modern gas turbines and aero-engines. In the present work, the influence of entropy waves on the downstream flow field of a turbine guide vane is inves...
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