Hydro-Servo-Aero-Elastic Analysis of Floating Offshore Wind Turbines
A fully coupled hydro-servo-aero-elastic simulator for the analysis of floating offshore wind turbines (FOWTs) is presented. All physical aspects are addressed, and the corresponding
Performance Prediction of the Elastic Support Structure
This study centered on the elastic support of the generator in a 7 MW wind turbine, with a specific focus on conducting physical tests to measure its bidirectional static stiffness. To determine the rated load that each wind
Effects of elastic support on the dynamic behaviors of the
effects of the elastic support on the dynamics of the wind turbine drive train must be elucidated to improve the reliability and service life of wind turbines. Recent studies on the dynamic
Performance Prediction of the Elastic Support Structure of a Wind
To test the static sti ness of the elastic support for a wind turbine generator, a micro- computer-controlled electro-hydraulic servo rubber testing machine, of model WXJ.200
Tolerance requirements for flange connections of wind
Seidel, M. (2018), Tolerance requirements for flange connections in wind turbine support structures. (elastic / plastic) In order to estimate the meridional shell (tower wall) stiffness, a
STUDY OF THE ELASTIC STABILITY OF THE WIND TURBINE
- wind turbine generator is considered to act statically on the support pillar, the mechanical model being in the form of a concentrated force acting at the free end of the structure. In this paper
Effects of elastic support on the dynamic behaviors of the wind
The findings of this study provide the foundation for optimizing the elastic support stiffness of the wind turbine drive train. The reliability and service life of wind turbines are
On motion analysis and elastic response of floating
The elastic response of wind turbines blades and towers is. for floating wind turbines support structures. Energy Procedia. 137:177–185. Carbon Trust (2015) Floating offshore wind: market
Coupled aero-hydro-servo-elastic methods for floating wind turbines
In recent years, the rapid development of the offshore wind industry has been attracting increasing worldwide attention [1].Currently, offshore wind turbines can be classified
Effects of elastic support on the dynamic behaviors of the wind
Results showed that the elastic support parameters considerably influenced the dynamic behaviors of the wind turbine drive train. A large support stiffness of the torque arms
Reliability-based design optimization of offshore wind turbine support
An efficient reliability-based design optimization method for the support structures of monopile offshore wind turbines is proposed herein. First, parametric finite element analysis
Effects of elastic support on the dynamic behaviors of
Results showed that the elastic support parameters considerably influenced the dynamic behaviors of the wind turbine drive train. A large support stiffness of the torque arms decreased
Reduced vibration and Model validation of DFIG for wind
The vibration system of wind turbine doubly-fed induction generator (DFIG) includes generator, elastic support and frame. The work in this paper was conceived to test whether the elastic
A fracture mechanics framework for optimising design and
1 A fracture mechanics framework for optimising design and 2 inspection of offshore Wind Turbine support structures against 3 fatigue failure 4 Peyman Amirafshari1, Feargal Brennan1,
Effects of gear modifications on the dynamic characteristics of
vibration acceleration and the structural noise of the wind turbine gearbox were lowered after suitable tooth modification. Keywords: Wind turbine gearbox; Elastic supporting; Gear
Effects of elastic support on the dynamic behaviors of the
The wind turbine drive train is a key component of wind turbines, and the performance of the former is responsible for the reliability and service life of the latter. An elastic support condition
STUDY OF THE ELASTIC STABILITY OF THE WIND TURBINE
the wind turbine, is adopted the following simplifying hypothesis: the shape of the wind turbine blades is considered to be rectangular and their negligible weight at the entire structure. 3.
Effects of elastic support on the dynamic behaviors of the wind turbine
The reliability and service life of wind turbines are influenced by the complex loading applied on the hub, especially amidst a poor external wind environment. A three-point elastic support,
Material parameters of the wind turbine drive train
Recently, Wang et al. [12] examined the effects of different elastic support parameters on the dynamic behaviors of the wind turbine drive train using the FRFs. In addition, Bouaziz et al. [13
Uncertainty modeling in reliability analysis of floating wind turbine
The future installations will see a progression from shallow to deep waters. It necessitates the development of innovative floating platforms to support the offshore wind
6 FAQs about [Elastic support for wind turbine generators]
What is elastic support of a wind turbine?
1. INTRODUCTION The elastic support of the generator for wind turbine is a flexible structure connecting the generator and the rear frame, and its function is mainly to reduce the vibration transmitted from the generator to the rear frame.
What is the stiffness of elastic support of a wind turbine generator?
According to the structural characteristics of the elastic support, Kx equals Ky . Due to the decline of stiffness, the strength and carrying capacity of the elastic support will decrease. Based on the experience, the stiffness of the elastic support of the wind turbine generator should be greater than 4000N/mm.
Why is elastic support important for wind turbine vibration reduction?
As the installed capacity of wind power continues to increase and the operating time of wind turbine increases, problems related to vibration have become more prominent . Therefore, the selection of elastic support as key components of the vibration reduction system is particularly important.
How to select the elastic support of a generator?
When selecting the elastic support of the generator, the X (axial), Y (lateral), and Z(vertical) stiffness are mainly considered to match the rationality of the system. Without considering the flexibility of the rear frame, the The Authors, published by EDP Sciences.
How does Abaqus improve the stiffness of a wind turbine?
It has a certain reliability, and greatly simplifies the selection of the elastic support of the wind turbine. Secondly, the DOE method is used to analyze the sensitivity of the wind turbine's elastic support stiffness by the integration of ABAQUS and Isight software. Finally, the stiffness is optimized by algorithm.
What is the torsional frequency of a wind farm generator?
According to formulas 1, the torsional frequency around Z axis is 26.19Hz which causes the current excessive vibration of the generator in the wind farm. The generator system mainly includes three components which are generator, elastic support and rear frame.