Results 31 to 40 of about 1,373,655 (201)

Wave interaction with a surface-piercing body in water of finite depth: a parametric study

open access: yesEngineering Applications of Computational Fluid Mechanics, 2016
The wave–body interactions for a surface-piercing body in water of finite depth are studied using a potential-theory-based, two-dimensional, fully nonlinear numerical wave tank.
Lixian Wang, Hui Tang, Yanhua Wu
doaj   +1 more source

Fast real-time prediction of wave exciting force for a point absorber based on impulse response functions

open access: yesApplied Ocean Research
Fast real-time prediction of wave exciting forces is necessary for the optimal control of Point Absorbers (PAs) in wave energy conversion. However, the non-causality of the impulse response function (IRF) of wave exciting force is a crucial issue for the
Ryo Yoshimura   +3 more
doaj   +1 more source

STUDY OF STATIC AND DYNAMIC STABILITY OF THIN-WALLED BARS EXCITED BY PERIODICAL AXIAL EXTERNAL FORCES. [PDF]

open access: yesFiabilitate şi Durabilitate, 2010
In these paper, starting from the relations for the displacements and spinning the transversal section of a bar with thin walls of sections opened expressed by the corresponding influence functions and introducing the components of the exterior forces ...
Minodora Maria PASĂRE   +1 more
doaj  

Theoretical and Experimental Study on Electromechanical Coupling Properties of Multihammer Synchronous Vibration System

open access: yesShock and Vibration, 2016
Industrial simulation of real external load using multiple exciting points or increasing exciting force by synchronizing multiple exciting forces requires multiple vibration hammers to be coordinated and work together.
Xin Lai, Wanjun Xie
doaj   +1 more source

Dynamic force calibration by impact excitation [PDF]

open access: yesEPJ Web of Conferences, 2014
Introduce a method of dynamic force calibration by impact excitation. An analysis of the 200kN standard dynamic force calibration equipment at NIM is presented. The heavy hammer and the force transducer under test are brought to collision, and the impact force is measured by laser-Doppler interferometer.
Feng Meng   +3 more
openaire   +2 more sources

Simulation and computation of oscillation and stability of hammer-pontoon systems

open access: yesVietnam Journal of Mechanics, 2000
Hammer pontoon systems are usually used for pile-driving of onshore construction. The systems are constantly acted upon by marine wave, wind and current and have to be fixed by moorings.
Nguyen Cao Menh   +3 more
doaj   +1 more source

Analytical Investigation of Tension Loads Acting on a TLP Floating Wind Turbine

open access: yesJournal of Marine Science and Engineering, 2022
The purpose of this study is to scrutinize the coupled hydroaeroelastic problem for a TLP design of a floating structure consisting of multiple vertical truncated cylinders which support a 10 MW wind turbine (WT).
Thomas P. Mazarakos   +3 more
doaj   +1 more source

Identification of uncorrelated sources of exciting forces by means of the methods of crosspower spectrum matrix decomposition into singular values and eigenvalues

open access: yesArchives of Acoustics, 2014
The practical use of the method of the crosspower spectrum matrix decomposition into singular values in problems of the identification of exciting force sources is discussed.
J. KROMULSKI
doaj  

Synchronous Stability of Four Homodromy Vibrators in a Vibrating System with Double Resonant Types

open access: yesShock and Vibration, 2018
This paper aims at studying the synchronous stability of four homodromy vibrators in subresonant and superresonant states. The motion differential equations are established firstly.
Xueliang Zhang   +3 more
doaj   +1 more source

Effect of Internal Fluid Resonance on the Performance of a Floating OWC Device

open access: yes한국해양공학회지, 2021
In the present study, the performance of a floating oscillating water column (OWC) device has been studied in regular waves. The OWC model has the shape of a hollow cylinder.
Il Hyoung Cho
doaj   +1 more source

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