... 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...

... 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 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...

...ABSTRACT 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...

... Tuned liquid column damper (TLCD) has been widely used in ship industry to damp the roll motion. Utilizing this technology for floating offshore wind turbines (FOWTs) has been recently studied. Research shows that the overall FOWT system benefits from the extra damping introduced by the TLCD...

... ABSTRACT The present paper focus on the effectiveness performance of a MRE damper for vibration control of offshore platform under seismic loadings. MRE materials are fabricated, and a MRE damper in mixing coupling mode is designed. Testing and dynamic modeling of the proposed MRE damper...

.... In general it appears WEC modelling has so far either utilised low fidelity hydrodynamics models with a fully modelled PTO, or at the other end, used high-fidelity CFD simulations to increase the accuracy of the hydrodynamics but relied on a simplified linear damper to account for PTO forces. The WEC used...

... 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...

... for the vibration dynamic dampers (hereinafter referred to as dampers) and absorbers as well as for calculation of high-rise structures equipped with these dampers. The constructive design of damper providing vibration damping of structures with a frequency of natural vibrations of less than 0.3 Hz is considered...

... reynolds number vibration pvd configuration weld primary mode pvd piping simulation stress range damper primary mode frequency upstream oil & gas mode shape pipe distance vibration damper piping design pipeline tva wind speed secondary mode wiv ABSTRACT Narrow...

... concept of power flow was discussed by Goyder and White (1980) and Pinnington and White (1981), with significant developments and advances reported by Fahy and Price (1999). vibration mode power flow design matrix power flow mode theory damper vector power flow mode control factor...