Design method of bolt connection for wind turbine tower

2017 ◽  
Vol 2017 (0) ◽  
pp. F111001
Author(s):  
Ikuo TOBINAGA ◽  
Takeshi ISHIHARA
Keyword(s):  
Wind Turbine ◽  
Design Method ◽  
Wind Turbine Tower ◽  
Bolt Connection

Decision-Based Design Method for Computing Marginal Cost of Durability

2020 ◽  
Author(s):  
Felipe M. Pasquali ◽  
Jonatan Meza ◽  
John F. Hall
Keyword(s):  
Wind Turbine ◽  
Marginal Cost ◽  
Business Models ◽  
Formal Method ◽  
Design Method ◽  
New Paradigm ◽  
Wind Turbine Tower ◽  
The Cost ◽  
Decision Based Design ◽  
Product Durability

Abstract Product durability impacts both the environment and the economy. Companies are changing their business models to the circular economy. In this model, the ownership of the product remains with the manufacturer. With this new paradigm, determining the life of the product becomes even more important for the success of the business model. The metric defined as the Marginal Cost of Durability (MCD) determines the cost to increase or decrease the life of the system. For a system to last longer, more materials are needed to counteract the fatigue damage. While this metric has been defined and used in studies throughout the literature, there is a need for a formal method of collecting this data. This paper presents a novel method for measuring the MCD aided by Metamodel-Based Optimization. A case study is presented to demonstrate this method when applied to a wind turbine tower. The results indicate that there is an increasing linear relationship between life and cost. A wind turbine tower designed for 80 years has 34% more mass and cost than a 20-year design.

Automatic Design Method of Wind Turbine Tower and it’s Application

2010 ◽  
Vol 139-141 ◽  
pp. 1277-1280
Author(s):  
Dong Hai Su ◽  
Mei Yan Zhang ◽  
Tie Qiang Ma ◽  
Xiao Qiu Han ◽  
Chuan Zong Sun ◽  
...  
Keyword(s):  
Wind Turbine ◽  
Design Method ◽  
Engineering Application ◽  
Design System ◽  
Automatic Design ◽  
Design Efficiency ◽  
Cycle Times ◽  
Wind Turbine Tower ◽  
System Effectiveness ◽  
Parameters Calculation

In order to solve the engineering application problems of parametric rapidly in design of wind turbine tower, an automatic design method of wind turbine tower is put forward first, and the automatic design model was built through analyzing the key parameters and parameters’ calculation relation in different cases: same taper tower design and variable taper tower design. The key parameters, height, diameter and wall thickness of the tower, are mainly considered. Then, an automatic design system of the wind turbine tower is developed and realized according to the model. Finally, the system effectiveness is verified through taking a wind turbine for example. The results show that the system can enhance the design efficiency and shorten the cycle times at the same time.

Structure Optimum Design Based on Maintenance and Lifting Equipment for Wind Turbine

2014 ◽  
Vol 684 ◽  
pp. 273-278 ◽  
Author(s):  
Jia Sun ◽  
Ke Zhang ◽  
Yu Hou Wu
Keyword(s):  
Wind Turbine ◽  
Design Method ◽  
The Self ◽  
Main Design ◽  
Advantages And Disadvantages ◽  
Mechanics Model ◽  
Wind Turbine Tower ◽  
Solid Works ◽  
The Cost ◽  
Lifting Equipment

To meet the urgent demand of maintenance and lifting equipment for wind turbine, combined with designation demand, two kinds of primary structure of the maintenance and lifting equipment has been proposed, analyzed and compared. By means of the Solid Works software the initial design on the two kind of the machine, the self-climbing crane and the trailed hoisting platform, have been conducted, the static analysis has been performed based on the mechanics model, and the advantages and disadvantages of these methods have been pointed out and compared in the paper. Compared with the self-climbing crane, the mechanical structure of the trailed hoisting platform is simpler, the control system presented more reliable, simple, easier realized etc, and the cost is lower. The self-climbing crane is high-automatic, but the design of crane high in the free degree and high in difficulty, and the climbing force focused on the wind turbine tower is too large. Conclusion The trailed hoisting platform is determined as the main design method to design the maintenance and lifting equipment for wind turbine.

General Structure Configuration and Parametric Design Method of Wind Turbine Tower

2012 ◽  
Vol 487 ◽  
pp. 588-592
Author(s):  
Zhen Yun Duan ◽  
Xiao Jiao Liu ◽  
Tie Qiang Ma
Keyword(s):  
Wind Turbine ◽  
Parametric Design ◽  
Design Method ◽  
General Structure ◽  
3D Design ◽  
Wind Turbine Tower ◽  
Relation Model ◽  
Tower Model ◽  
Structure Configuration ◽  
Parameter Relation

In order to improve the design efficiency of wind turbine tower, a design method which combines configuration and parametric design is proposed, the general structure model of wind turbine tower is given, and the parameter relation model of tower components is established. Based on skeleton and coordinate system coincident method, the automatic assembly of 3D tower model is realized. An automated 3D design software system of wind turbine tower is built by the API of Pro/E. The validity of the system is proved by wind turbine SUT-1500.

A Circuit Model for Lightning Surge of Wind Turbine Tower with an Internal Conductor

2015 ◽  
Vol 135 (3) ◽  
pp. 200-206 ◽  
Author(s):  
Yoki Ikeda ◽  
Naoto Nagaoka ◽  
Yoshihiro Baba
Keyword(s):  
Wind Turbine ◽  
Circuit Model ◽  
Wind Turbine Tower

Seismic response analysis of steel–concrete hybrid wind turbine tower

2021 ◽  
pp. 107754632110075
Author(s):  
Junling Chen ◽  
Jinwei Li ◽  
Dawei Wang ◽  
Youquan Feng
Keyword(s):  
Wind Turbine ◽  
Response Spectrum ◽  
Ground Motions ◽  
Time History ◽  
Seismic Action ◽  
Response Spectrum Method ◽  
Spectrum Method ◽  
Wind Turbine Tower ◽  
Ground Types ◽  
Nonlinear Time History

The steel–concrete hybrid wind turbine tower is characterized by the concrete tubular segment at the lower part and the traditional steel tubular segment at the upper part. Because of the great change of mass and stiffness along the height of the tower at the connection of steel segment and concrete segment, its dynamic responses under seismic ground motions are significantly different from those of the traditional steel tubular wind turbine tower. Two detailed finite element models of a full steel tubular tower and a steel–concrete hybrid tower for 2.0 MW wind turbine built in the same wind farm are, respectively, developed by using the finite element software ABAQUS. The response spectrum method is applied to analyze the seismic action effects of these two towers under three different ground types. Three groups of ground motions corresponding to three ground types are used to analyze the dynamic response of the steel–concrete hybrid tower by the nonlinear time history method. The numerical results show that the seismic action effect by the response spectrum method is lower than those by the nonlinear time history method. And then it can be concluded that the response spectrum method is not suitable for calculating the seismic action effects of the steel–concrete hybrid tower directly and the time history analyses should be a necessary supplement for its seismic design. The first three modes have obvious contributions on the dynamic response of the steel–concrete hybrid tower.

Collapse analysis of wind turbine tower under the coupled effects of wind and near-field earthquake

Wind Energy ◽  
2018 ◽  
Vol 22 (3) ◽  
pp. 407-419 ◽  
Author(s):  
Jian Fan ◽  
Qian Li ◽  
Yanping Zhang
Keyword(s):  
Wind Turbine ◽  
Near Field ◽  
Wind Turbine Tower ◽  
Collapse Analysis

Methodology for seismic risk assessment for tubular steel wind turbine towers: application to Canadian seismic environment

2011 ◽  
Vol 38 (3) ◽  
pp. 293-304 ◽  
Author(s):  
Elena Nuta ◽  
Constantin Christopoulos ◽  
Jeffrey A. Packer
Keyword(s):  
Seismic Hazard ◽  
Wind Turbine ◽  
Seismic Loading ◽  
Element Analysis ◽  
Design Spectrum ◽  
Wind Turbine Tower ◽  
Damage States ◽  
Wind Turbine Towers ◽  
Hazard Level ◽  
Hazard Levels

The seismic response of tubular steel wind turbine towers is of significant concern as they are increasingly being installed in seismic areas and design codes do not clearly address this aspect of design. The seismic hazard is hence assessed for the Canadian seismic environment using implicit finite element analysis and incremental dynamic analysis of a 1.65 MW wind turbine tower. Its behaviour under seismic excitation is evaluated, damage states are defined, and a framework is developed for determining the probability of damage of the tower at varying seismic hazard levels. Results of the implementation of this framework in two Canadian locations are presented herein, where the risk was found to be low for the seismic hazard level prescribed for buildings. However, the design of wind turbine towers is subject to change, and the design spectrum is highly uncertain. Thus, a methodology is outlined to thoroughly investigate the probability of reaching predetermined damage states under any seismic loading conditions for future considerations.

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