Parametric modelling of multi-body cylindrical offshore wind turbine platforms

2014 ◽  
pp. 1199-1210
Keyword(s):  
Wind Turbine ◽  
Offshore Wind ◽  
Offshore Wind Turbine ◽  
Parametric Modelling ◽  
Multi Body

Investigation on High-Order Coupled Rigid-Flexible Multi-Body Dynamic Code for Offshore Floating Wind Turbines

2017 ◽  
Author(s):  
Zhiqiang Hu ◽  
Jiahao Chen ◽  
Geliang Liu
Keyword(s):  
Wind Turbine ◽  
Coupled Model ◽  
High Order ◽  
Offshore Wind ◽  
Offshore Wind Turbine ◽  
Mooring Lines ◽  
Simulation Code ◽  
Floating Offshore Wind Turbine ◽  
Restoring Forces ◽  
Multi Body

This paper presents a preliminary development and validation of a high-order coupled time-domain simulation code DARwind for floating offshore wind turbine systems. In the code, unsteady Blade-Element-Momentum method with some corrections has been utilized to calculate aerodynamic loads. Combination of potential-flow theory and Morison“s equation are applied to calculate hydrodynamic loads. A quasi-static catenary mooring model is used to consider restoring forces from mooring lines. Kane“s dynamic equations and a high-order coupled model with mode superposition are proposed to model kinematics and structural dynamics of floating offshore wind turbine systems. Subsequently, the effectiveness of the code and its unique high-order coupled dynamic characteristics have been verified by code-to-code tests.

scholarly journals Use of Kane’s Method for Multi-Body Dynamic Modelling and Control of Spar-Type Floating Offshore Wind Turbines

Energies ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 6635
Author(s):  
Saptarshi Sarkar ◽  
Breiffni Fitzgerald
Keyword(s):  
Wind Turbine ◽  
Equations Of Motion ◽  
Dynamic Modelling ◽  
Offshore Wind ◽  
Offshore Wind Turbine ◽  
Kane’S Method ◽  
Kane's Method ◽  
Floating Offshore Wind Turbines ◽  
Multi Body ◽  
And Control

This paper demonstrates the use of Kane’s method to derive equations of motion for a spar-type floating offshore wind turbine taking into account the flexibility of the members. The recently emerged Kane’s method reduces the effort required to derive equations of motion for complex multi-body systems, making them simpler to model and more readily solved by computers. Further, the installation procedure of external vibration control devices on the wind turbine using Kane’s method is described, and the ease of using this method has been demonstrated. A tuned mass damper inerter (TMDI) is installed in the tower for illustration. The excellent vibration mitigation properties of the TMDI are also presented in this paper.

Multi-Body Dynamic Modeling of Offshore Wind Turbine under Wake Effects

2021 ◽  
Author(s):  
M. Li ◽  
Y. Qiu ◽  
X. Wang ◽  
Y. Feng ◽  
X. Cai ◽  
...  
Keyword(s):  
Wind Turbine ◽  
Dynamic Modeling ◽  
Offshore Wind ◽  
Offshore Wind Turbine ◽  
Wake Effects ◽  
Multi Body ◽  
Body Dynamic

The Effect of Counterweight Mass and Line Stiffness on the Global Dynamic Performance of a Hanging-Mass Floating Offshore Wind Turbine

2021 ◽  
pp. 1-15
Author(s):  
Jacob Ward ◽  
Andrew J. Goupee ◽  
Anthony M. Viselli ◽  
Habib Dagher
Keyword(s):  
Wind Turbine ◽  
Parametric Study ◽  
Strong Influence ◽  
Offshore Wind ◽  
Offshore Wind Turbine ◽  
Linear Wave ◽  
Energy Potential ◽  
Floating Offshore Wind Turbine ◽  
Study Results ◽  
Multi Body

Abstract Innovative floating offshore wind turbine (FOWT) platforms that deviate from the conventional semi-submersible, spar, and tension leg platforms (TLP) have become increasingly common due to the need to tap into the high wind energy potential located in deeper waters. One example is the hanging-mass concept, in which a suspended counterweight stabilizes a positively buoyant floater. This work presents a two-dimensional, nonlinear, multi-body model used to assess the influence of the counterweight mass and the suspension line stiffness on the system's global performance, using linear stability analysis and time-domain simulations to conduct a parametric study. For example, the counterweight mass has a strong influence on the amplitude of rotational degrees of freedom. Corresponding natural periods may occur within the linear wave energy range for suitable counterweight sizes due to this strong influence leading to undesirable motions. High-frequency multi-body modes are also dependent on both the line stiffness and counterweight mass, which may result in high relative motion amplitudes and slack lines in certain conditions. Finally, the parametric study results contribute to preliminary hanging-mass FOWT design recommendations.

Coupled Analysis of a 10 MW Multi-Body Floating Offshore Wind Turbine Subjected to Tendon Failures

2021 ◽  
Author(s):  
Yang YANG ◽  
Musa BASHIR ◽  
Constantine MICHAILIDES ◽  
Xuan MEI ◽  
Jin WANG ◽  
...  
Keyword(s):  
Wind Turbine ◽  
Offshore Wind ◽  
Coupled Analysis ◽  
Offshore Wind Turbine ◽  
Floating Offshore Wind Turbine ◽  
Multi Body
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