Analysis and Design of Integrated Optimization of 1.5MW Wind Turbine Tower

2014 ◽  
Vol 971-973 ◽  
pp. 958-961
Author(s):  
Yong Zhi Xie ◽  
An Le Mu
Keyword(s):  
Mathematical Modeling ◽  
Wind Turbine ◽  
Modal Analysis ◽  
Static Analysis ◽  
Optimization Algorithm ◽  
Parametric Modeling ◽  
Analysis And Design ◽  
Wind Turbine Tower ◽  
Tower Structure ◽  
Ansys Workbench

This paper uses Isight_FD 5.6 to integrate UG8.0 parametric modeling, ANSYS Workbench static analysis, modal analysis, and mathematical modeling of design optimization, by means of optimization algorithm, to meet strength and the stiffness of the tower, to realize the optimization of tower structure, so as to attain the expected target which reduces the weight of tower.

The Finite Element Analysis and Comparison of Wind Turbine Tower under Static Wind Load and Fluctuating Wind Load

2013 ◽  
Vol 446-447 ◽  
pp. 733-737
Author(s):  
Chi Chen ◽  
Hao Yuan Chen ◽  
Tian Lu
Keyword(s):  
Finite Element ◽  
Dynamic Analysis ◽  
Wind Turbine ◽  
Modal Analysis ◽  
Large Scale ◽  
Wind Load ◽  
Element Analysis ◽  
Finite Element Software ◽  
Wind Turbine Tower ◽  
Fluctuating Wind

In this paper, a 1.5 MW wind turbine tower in Dali, Yunnan Province is used as the research object, using large-scale finite element software Ansys to carry on the dynamic analysis. These natural frequencies and natural vibration type of the first five of tower are obtained by modal analysis and are compared with natural frequency to determine whether the resonance occurs. Based on the modal analysis, the results of the transient dynamic analysis are obtained from the tower, which is loaded by the static wind load and fluctuating wind load in two different forms. By comparing the different results, it provides the basis for the dynamic design of wind turbine tower.

Static Analysis and Modal Analysis of Heavy-Load Manipulator Based on ANSYS

2014 ◽  
Vol 556-562 ◽  
pp. 1059-1064
Author(s):  
Zhang Li ◽  
Xi Zhe Zang ◽  
Lai Chun Suo ◽  
Yan He Zhu ◽  
Jie Zhao
Keyword(s):  
Modal Analysis ◽  
Static Analysis ◽  
Large Scale ◽  
Control Method ◽  
Mode Shapes ◽  
Element Analysis ◽  
Heavy Load ◽  
Manipulator Arm ◽  
Seamless Connection ◽  
Ansys Workbench

The heavy-load manipulator arm, an important part of the remote handling maintenance system of the large-scale multi-purpose deployer, plays a key role of the entire system. Its modeling and assembly was finished by Pro/E. Then use the ANSYS Workbench, finite element analysis software, to complete its static analysis and modal analysis through building a seamless connection between Pro/E and ANSYS Workbench. As a result, the overall deformation and static stiffness values of the manipulator arm were obtained through static analysis, and the former six-order natural frequency values and mode shapes were obtained through modal analysis. Finally, scheme of structure modification and new control method were presented by analyzing and comparing the results.

Feasibility of segmented concrete in wind turbine tower: Numerical studies on its mechanical performance

2020 ◽  
pp. 105678952095489
Author(s):  
Yanchao Yue ◽  
Jingjing Tian ◽  
Qingyi Mu ◽  
Tangbing Chen ◽  
Lin Peng ◽  
...  
Keyword(s):  
Wind Turbine ◽  
Mechanical Performance ◽  
Cost Savings ◽  
Peak Stress ◽  
Element Model ◽  
Numerical Studies ◽  
Wind Turbine Tower ◽  
Low Elastic Modulus ◽  
Tower Structure

Segmented concrete slices have been widely used in the construction of wind turbine tower due to easy transportation and cost savings. Factors such as the size and form of the concrete slice and the connector may affect the stiffness and reliability of the structure. The objective of this study is to investigate the influence of the above factors on mechanical performance of a wind turbine tower. A finite element model of 40 m segmented concrete tower was developed for the modal analysis, and a local refinement model was established for the static analysis. Results show that the slice form and connectors have impact on the rigidity of the tower structure. Dividing the tower into two pieces per layer, increasing the height of the tower segment, using the grout connection of the longitudinal and staggering longitudinal seams can increase the stiffness of segmented concrete tower. In addition, this study analyzes the role of rubber pads in improving the mechanical performance of the tower, results show that the peak stress at the joints can be reduced by setting rubber pads with low elastic modulus at the longitudinal seams.

Numerical evaluation for vibration-based damage detection in wind turbine tower structure

2015 ◽  
Vol 21 (6) ◽  
pp. 657-675 ◽  
Author(s):  
Tuan-Cuong Nguyen ◽  
Thanh-Canh Huynh ◽  
Jeong-Tae Kim
Keyword(s):  
Damage Detection ◽  
Wind Turbine ◽  
Numerical Evaluation ◽  
Wind Turbine Tower ◽  
Tower Structure

Modal Analysis of the 1.5MW Wind Turbine Tower

2013 ◽  
Vol 712-715 ◽  
pp. 1494-1500
Author(s):  
Bi Feng Cao ◽  
Hui Yu
Keyword(s):  
Finite Element ◽  
Wind Turbine ◽  
Modal Analysis ◽  
Natural Frequency ◽  
Excitation Frequency ◽  
Horizontal Axis ◽  
Horizontal Axis Wind Turbine ◽  
Finite Element Software ◽  
Wind Turbine Tower ◽  
Tower Model

The paper uses the finite element software ANSYS to establish a 1.5 MW horizontal-axis wind turbine tower model as an example and works on the modal analysis. The modal analysis takes into account the totalmass of wind rotor and nacelle and assumes the bottom of the wind turbine tower is fully constrained. The result shows that the natural frequency of the 1.5MW wind turbine tower is not coincident with the excitation frequency of the wind turbine, and the wind turbine can operate stably at the design condition.

Finite Element Analysis of Wind Turbine Lifting Platform Bridge Structure

2014 ◽  
Vol 687-691 ◽  
pp. 398-401 ◽  
Author(s):  
Yu Tang ◽  
Yu Hou Wu ◽  
Ke Zhang ◽  
Jia Sun ◽  
En Wei Song
Keyword(s):  
Wind Turbine ◽  
Modal Analysis ◽  
Optimization Design ◽  
Three Dimensional ◽  
Bridge Structure ◽  
Element Analysis ◽  
Nature Frequency ◽  
New Type ◽  
Strength And Stiffness ◽  
Ansys Workbench

Designed a new type of wind turbine internal maintenance lifting platform using three-dimensional drawing software SolidWorks to establish the 3D model for the internal maintenance lifting platform. Imported platform bridge part to ANSYS Workbench static and modal analysis module; make load analysis according to the wind turbine operating environment and platform’s most dangerous operating condition and obtain the maximum stress of platform bridge structure and place and form of deformation. Obtained multiple order natural frequency and vibration mode of platform bridge structure through modal analysis. Compared with the standard, it shows that this structure satisfies the strength and stiffness requirement and will generate frequency affecting human body higher than the nature frequency. This thesis provides a theoretical foundation for designing the wind driven generator internal lifting platform and provides a reference for optimization design.

Modal Analysis of a Wind Turbine Tower Based on the Finite Element Method

2015 ◽  
Vol 744-746 ◽  
pp. 179-182
Author(s):  
Hong Zhu Shan ◽  
Zhen Hua Liu
Keyword(s):  
Finite Element ◽  
Wind Turbine ◽  
Modal Analysis ◽  
Excitation Frequency ◽  
Element Model ◽  
Direct Drive ◽  
The Finite Element Method ◽  
Wind Turbine Tower ◽  
Inherent Frequency ◽  
Generator Unit

For the low power wind turbine, the tower and the generator unit is easy to produce resonance, which will result in bigger amplitude. In this paper, as an example, the authors establish a finite element model for modal analysis by a 55kw direct-drive permanent-magnet generator, to confirm its inherent frequency and vibration mode. Horizontal amplitude on the top of the tower can be received under different external excitation frequency. The results correspond to the codes very well and can provide effective reference data for the design of the wind turbine tower.

Analysis and design of the prototype of a steel 1-MW wind turbine tower

2003 ◽  
Vol 25 (8) ◽  
pp. 1097-1106 ◽  
Author(s):  
I. Lavassas ◽  
G. Nikolaidis ◽  
P. Zervas ◽  
E. Efthimiou ◽  
I.N. Doudoumis ◽  
...  
Keyword(s):  
Wind Turbine ◽  
Analysis And Design ◽  
Wind Turbine Tower
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