On the applicability of Morison equation to force estimation induced by internal solitary wave on circular cylinder

Zan, Xiaoxiao; Lin, Zhenhua

doi:10.1016/j.oceaneng.2020.106966

Cited by 24 publications

(3 citation statements)

References 11 publications

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“…Pada perancangan struktur bangunan lepas pantai diperlukan perhitungan perhitungan dengan melihat faktor-faktor yang terjadi di lautan tersebut. Faktor dominan yang terjadi adalah gaya gangguan gelombang ombak yang dapat mengganggu kekuatan struktur bangunan, misalnya gangguan ombak terhadap kabel bawah laut [1], [2], Tension Leg Platform [3], [4], [5] and Submerged Floating Tunnel [6].…”

Section: Pendahuluanunclassified

Media Pembangkit Gelombang Skala Laboratorium

Akmal,

Suudi,

Grahita

et al. 2023

jtm

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In the design of offshore building structures, calculations are required by looking at the factors that occur in the ocean. A big factor that occurs is the disturbance force of waves which can disrupt the strength of the building structure to be created. For this reason, this research makes a wave generating media device on a laboratory scale. With this tool, efforts are also made to resemble the original wave, where the deeper it is, the smaller the strength of the wave formed. This effort is an implementation of the wave forms that occur in the open sea. The results of the design of a wave generating media device measuring 3690x830x940 mm. From wave observations and calculations, it was found that the wavelength was 0.5m and the amplitude was 0.01m. It was concluded that the type of wave characteristic produced by this tool was categorized as an airy wave.

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Section: Pendahuluanunclassified

Media Pembangkit Gelombang Skala Laboratorium

Akmal,

Suudi,

Grahita

et al. 2023

jtm

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“…Offshore structures are generally classified as small-scale structures or large-scale structures. Their wave forces are usually estimated by Morison equation [83,84] and diffraction/radiation theories, respectively [85]. To be specific, Morison equation is a semitheoretical and semi-empirical formula, which assumes that the wave force as the sum of the resistance caused by the wave velocity and the inertial force caused by the acceleration of wave.…”

Section: Simulation Of Wave Loadmentioning

confidence: 99%

A comprehensive review on coupling vibrations of train–bridge systems under external excitations

Xiang

Wang

et al. 2022

Rail. Eng. Science

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In recent years, high-speed railways in China have developed very rapidly, and the number and span of the railway bridges are keeping increasing. Meanwhile, frequent extreme disasters, such as strong winds, earthquakes and floods, pose a significant threat to the safety of the train–bridge systems. Therefore, it is of paramount importance to evaluate the safety and comfort of trains when crossing a bridge under external excitations. In these aspects, there is abundant research but lacks a literature review. Therefore, this paper provides a comprehensive state-of-the-art review of research works on train–bridge systems under external excitations, which includes crosswinds, waves, collision loads and seismic loads. The characteristics of external excitations, the models of the train–bridge systems under external excitations, and the representative research results are summarized and analyzed. Finally, some suggestions for further research of the coupling vibration of train–bridge system under external excitations are presented.

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“…The hydrodynamic forces consist of two components; the drag and the inertial force, each affected by the velocity and acceleration of the water particles, as proposed by Morison, well known as Morison Equation [14, 15], Morison Equation is effectively used to predict the hydrodynamic forces on a vertically or horizontally installed tube [16], The numerical study of the hydrodynamic forces on a floating tube subjected to internal solitary waves also proves the accuracy of this equation [17,18],…”

Section: Introductionmentioning

confidence: 99%

Hydrodynamic forces on submerged floating tube: The effect of curvature radius and depth level

Akmal,

Lubis,

Su'udi

et al. 2022

Kapal

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The discussion of hydrodynamic forces becomes an important issue in determining the dynamic behaviour of the Submerged Floating Tunnel Bridge (SFTB) structure. As stated in the Morison Equation, the hydrodynamic forces are affected by the kinematics of water particles, but up to this date, there are only a few discussions for curved tube applications. This paper discusses the effect of curvature radius and depth level on hydrodynamic forces to get the correction factor for a straight tube. Tubes with variations in radius curvature (R/L) and diameter (D) were installed in a wave pool with a depth level (z/d). The hydrodynamic forces were detected by a load cell sensor placed on a pedestal at the end of the specimen. The data from the load cell was processed by the data acquisition system and displayed on the monitor screen, showing that the z/d ratio and the R/L ratio both affect the hydrodynamic forces. A larger z/d ratio (deeper) results in smaller hydrodynamic forces, while a smaller R/L ratio (more curved) results in smaller hydrodynamic forces. A correction factor (C) has been determined to calculate the hydrodynamic force on a curved tube based on the Morison equation.

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On the applicability of Morison equation to force estimation induced by internal solitary wave on circular cylinder

Cited by 24 publications

References 11 publications

Media Pembangkit Gelombang Skala Laboratorium

Media Pembangkit Gelombang Skala Laboratorium

A comprehensive review on coupling vibrations of train–bridge systems under external excitations

Hydrodynamic forces on submerged floating tube: The effect of curvature radius and depth level

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