... for wave energy absorption, because of the unique arrangement of the PTO system: a heavy mass ball inside of the WEC, links the device hull via springs and PTO dampers (see the PTO system from the cut-off in Figure 1b). Under the wave excitation, the device hull moves in 6 DOFs (degrees of freedom), while...

..., to minimize the response in flexible modes of operation using appropriate control mechanisms. This paper discusses the surge response control of a Tension leg platform using a tuned mass damper (TMD). TMD, consisting of spring-mass-dashpot, helps to control the surge response, being the predominant degree...

... sustainability artificial intelligence offshore projects planning and execution passive control social responsibility wind energy active control platform equation tmd parameter offshore wind turbine coefficient sustainable development turbine damper vibration wind turbine model...

... ABSTRACT Large amount parameters make optimizing multiple tuned mass dampers’ (MTMD) performance difficult. A simplified method of MTMD optimization is proposed. In this method, tuned mass dampers (TMDs) are used to suppress the peak responses in the frequency domain by being tuned...

... ABSTRACT Offshore wind turbines located in sea ice zones are subjected to severe ice-induced vibration. The present study uses a three-dimensional pendulum tuned mass damper (3d-PTMD) to mitigate the nacelle/tower and foundation dynamic response under the combined action of wind and ice loading...

... ABSTRACT Tension leg platform (TLP) floating wind turbines (FWTs) experience high-amplitude, dynamic structural vibrations under complex loading conditions. Tuned mass dampers (TMDs) are a simple yet effective means to reduce such loadings. This work focuses on load reduction by TMDs...

... renewable energy simulation wind turbine head loss engineering tlmcd vertical column cross section wind energy cfd simulation coefficient analytical model ocean engineering damper natural frequency configuration tlcd equation liquid multi-column damper tank Tuned liquid...

... Vibration Mitigation of Offshore Platform Utilizing a Magnetorheological Elastomer Damper Dingxin Leng, Kai Xu, Guijie Liu, Yingchun Xie, Xiaojie Tian Department of Mechanical and Electrical Engineering, Ocean University of China Qingdao, Shandong, China ABSTRACT The present paper focus...

...-off system and/or the hydrodynamics. sustainability pto simulation pressure drop power output accumulator renewable energy angular velocity damper wave energy converter sustainable development equation nonlinear wave energy converter converter rotational speed hydraulic motor...

... ABSTRACT Tuned liquid dampers (TLD) are passive vibration absorbers of lightly damped structures such as airport towers, chimneys, skyscrapers, long-span bridges, overhead power lines, tall buildings, masts and offshore platforms. TLDs dissipate the structural vibration energy with the help...

...) damper-tensioner system. The innovation is inspired from the successful engineering applications of MR dampers in land-based buildings as isolators against large-amplitude earthquake vibrations. The specific characteristic of MR dampers in alternating the damping forces has great potential...

... ABSTRACT: The magnetorheological (MR) dampers have been used to reduce the vibration in truck seats in the auto industry, to minimize the damage to civil engineering structures due to seismic loads, and etc. Recently some researchers introduce MR dampers into the offshore industry, mainly...

... to the total damping of deepwater floating platform in the low frequency range. The viscous damper is designed to simulate the contribution of mooring damping. The dissipated energy by a mooring line from the floating platform as a result of its oscillation is applied to calculate the mooring-induced damping...

... - hydrodynamic motion and loading, SaSD - strength and structural design, M - mooring, and EaC - economics and cost. dimension requirement technical design stability subsea system regulation critical parameter objective function damper constraint optimization problem mooring system hull...

... the flexural, longitudinal and shear wave motions in the plates. Zhou Ping and Zhao Deyou (2008) calculated the vibration energy ratios of a stiffened panel in the mid and high frequency regions based on the dynamic stiffness method. l-shaped plate representation power flow damper position flow...

... Experimental Study on Ship Equipments Vibration Reduction Based on Magnetorheological Damper Zhongchao Deng; Dagang Zhang; Xiongliang Yao Deepwater Engineering and Technology Research Center, Harbin Engineering University. Harbin, Heilongjiang, China. ABSTRACT The equipment vibration on ship...

... Robust design optimization of mass dampers for control of tension leg platforms Alexandros A. Taflanidis 1, Demos C. Angelides 2 and Jeffrey T. Scruggs 1 1 Department of Civil and Environmental Engineering, Duke University Durham, North Carolina, USA. 2 Department of Civil Engineering, Aristotle...

... artificial intelligence damper control implementation tension leg platform model parameter excitation subsea system evaluation upstream oil & gas characteristic machine learning frequency displacement tendon implementation application control application platform reliability controller...

... Hydrodynamic features of a novel column design for semi-submersible platforms have been investigated. Each column consists of a cylinder with a special pontoon design at the lower end called "damper". Each of these dampers is aimed at producing increased resistance for heave, roll and pitch...

... because they are associated with wind speeds in the subcritical Reynolds number regime. Alaskan Arctic North Slope oil and gas operators have employed successful mitigating measures (pipeline vibration dampers and tuned vibration absorbers) to prevent potential severe fatigue damage to pipeline welds...