An investigation on the impacts of passive and semiactive structural control on a fixed bottom and a floating offshore wind turbine

Park, Semyung; Lackner, Matthew A.; Pourazarm, Pariya; Tsouroukdissian, Arturo Rodríguez; Cross‐Whiter, John

doi:10.1002/we.2381

Cited by 40 publications

(22 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nevertheless, the authors also showed that the control performance is highly sensitive to the damper's time lag. Semi-active MR dampers also improved the response of the undamped side-to-side motion due to misaligned wind and waves [154]. Caterino carried out an experimental analysis studying the performance of the MR damper.…”

Section: Semi-active Vibration Methodsmentioning

confidence: 99%

Recent Advances in Vibration Control Methods for Wind Turbine Towers

2021

View full text Add to dashboard Cite

Wind power is a substantial resource to assist global efforts on the decarbonization of energy. The drive to increase capacity has led to ever-increasing blade tip heights and lightweight, slender towers. These structures are subject to a variety of environmental loads that give rise to vibrations with potentially catastrophic consequences, making the mitigation of the tower’s structural vibrations an important factor for low maintenance requirements and reduced damage risk. Recent advances in the most important vibration control methods for wind turbine towers are presented in this paper, exploring the impact of the installation environment harshness on the performance of state-of-the-art devices. An overview of the typical structural characteristics of a modern wind turbine tower is followed by a discussion of typical damages and their link to known collapse cases. Furthermore, the vibration properties of towers in harsh multi-hazard environments are presented and the typical design options are discussed. A comprehensive review of the most promising passive, active, and semi-active vibration control methods is conducted, focusing on recent advances around novel concepts and analyses of their performance under multiple environmental loads, including wind, waves, currents, and seismic excitations. The review highlights the benefits of installing structural systems in reducing the vibrational load of towers and therefore increasing their structural reliability and resilience to extreme events. It is also found that the stochastic nature of the typical tower loads remains a key issue for the design and the performance of the state-of-the-art vibration control methods.

show abstract

Section: Semi-active Vibration Methodsmentioning

confidence: 99%

Recent Advances in Vibration Control Methods for Wind Turbine Towers

2021

View full text Add to dashboard Cite

show abstract

“…The pendulum TMD modelled in the TMD module can be utilised as a passive device with constant parameters or semiactively in which the damping force can be controlled. 12 In this study, the TMD module in…”

Section: Implementation Of Ibas In Openfastmentioning

confidence: 99%

“…Beyond a single passive TMD, Zuo et al 10 investigated the effect of multiple TMDs on a finite-element monopile turbine model written in ABAQUS ® ; Sun 11 also investigated the vibration suppression of a monopile turbine using a semiactive TMD under multi-hazards. Furthermore, Park et al 12 included a single pendulum TMD in FAST, which can oscillate omni-directionally (i.e., 2-D motion) with different semi-active control strategy.…”

mentioning

confidence: 99%

Vibration suppression for monopile and spar‐buoy offshore wind turbines using the structure‐immittance approach

et al. 2020

Self Cite

View full text Add to dashboard Cite

Offshore wind turbines have the potential to capture the high‐quality wind resource. However, the significant wind and wave excitations may result in excessive vibrations and decreased reliability. To reduce vibrations, passive structural control devices, such as the tuned mass damper (TMD), have been used. To further enhance the vibration suppression capability, inerter‐based absorbers (IBAs) have been studied using the structure‐based approach, that is, proposing specific stiffness‐damping‐inertance elements layouts for investigation. Such an approach has a critical limitation of being only able to cover specific IBA layouts, leaving numerous beneficial configurations not identified. This paper adopts the newly introduced structure‐immittance approach, which is able to cover all network layout possibilities with a predetermined number of elements. Linear monopile and spar‐buoy turbine models are first established for optimisation. Results show that the performance improvements can be up to 6.5% and 7.3% with four and six elements, respectively, compared with the TMD. Moreover, a complete set of beneficial IBA layouts with explicit element types and numbers have been obtained, which is essential for next‐step real‐life applications. In order to verify the effectiveness of the identified absorbers with OpenFAST, an approach has been established to integrate any IBA transfer functions. It has been shown that the performance benefits preserve under both the fatigue limit state (FLS) and the ultimate limit state (ULS). Furthermore, results show that the mass component of the optimum IBAs can be reduced by up to 25.1% (7,486 kg) to achieve the same performance as the TMD.

show abstract

“…The analytical formulas of a blade-TMD designed by ESM GmBH are established in this Section (Park et al, 2019). The blade-TMD is mounted inside a blade, and consists of a universal joint, dampers, a mass, an elastomeric end-stop spring, and a regulation spring system as shown in Figure 2.…”

Section: Wind Turbine Models and Simulation Toolsmentioning

confidence: 99%

Edgewise vibration suppression of multi-megawatt wind turbine blades using passive tuned mass dampers

Park

Lackner

2020

Wind Engineering

Self Cite

View full text Add to dashboard Cite

The lack of aerodynamic damping of wind turbine blades in the edgewise direction causes larger dynamic responses and lowers the reliability. As blades become longer, edgewise fatigue loading increases rapidly. To mitigate the blade edgewise vibration, structural control techniques using a tuned mass damper (TMD) are applied in this paper. The “TMD” module in FASTv8 was upgraded to enable the high-fidelity simulation of structural control of the blade response. With the developed tool, the optimal parameters and generalized design formulas were established through a parametric study. Also, the control effect of the optimal blade-TMD on reducing fatigue and extreme loads of two different multi-megawatts turbine blades is investigated. Fully-coupled non-linear time marching simulations were conducted by running key design load cases (DLCs) with site-specific meteorological conditions. The results provide insight into the potential benefits and impacts of passive structural control to reduce the fatigue and extreme loads of turbine blades.

show abstract

An investigation on the impacts of passive and semiactive structural control on a fixed bottom and a floating offshore wind turbine

Cited by 40 publications

References 48 publications

Recent Advances in Vibration Control Methods for Wind Turbine Towers

Recent Advances in Vibration Control Methods for Wind Turbine Towers

Vibration suppression for monopile and spar‐buoy offshore wind turbines using the structure‐immittance approach

Edgewise vibration suppression of multi-megawatt wind turbine blades using passive tuned mass dampers

Contact Info

Product

Resources

About