Dynamic Analysis on Steel Tower of Vertical Axis Wind Turbine

2011 ◽  
Vol 291-294 ◽  
pp. 2529-2536
Author(s):  
Jia Jun Si ◽  
Kuan Jun Zhu ◽  
Bin Liu ◽  
Yao Ding
Keyword(s):  
Dynamic Analysis ◽  
Wind Turbine ◽  
Natural Frequency ◽  
Vertical Axis ◽  
Scientific Basis ◽  
Harmonic Load ◽  
Vertical Axis Wind Turbine ◽  
Harmonic Response ◽  
Structural Style ◽  
The Difference

The dynamic analysis has been adopted for the calculation of the low-order natural frequency and harmonic response data of the steel tower of vertical axis wind turbine, as well as the dynamic relation between the wind turbine and the tower. When the wheel rotates at 160rpm, the harmonic load has a very serious destructive damage to the tower. In order to avoid the system failure caused by the system resonance in the engineering design, some optimizations have been taken on satisfying the security and reliability of the tower. This study provides the scientific basis for the dynamic design and the optimization. The conclusion shows that the most effective method of raising the natural frequency is to reduce the weight of the structure when the material and the structural style are determined. As a result, the difference between harmonic response and resonance frequency of the structure rises to 21.3％ from 0.3％ after reducing the weight of the tower by 21.3％.

The Research on the Design of the Vertical Axis Wind Turbine Street Light Pole

2013 ◽  
Vol 341-342 ◽  
pp. 383-386
Author(s):  
Zhong Guo Bian ◽  
Shu Qin Liu ◽  
Guo Zhi Han
Keyword(s):  
Wind Turbine ◽  
Natural Frequency ◽  
Wall Thickness ◽  
Vertical Axis ◽  
Mechanical Analysis ◽  
Vertical Axis Wind Turbine ◽  
Wind Generator ◽  
Inherent Frequency ◽  
Light Pole

According to the characteristics of the vertical axis wind turbine, research about the mechanical analysis and inherent frequency in design of the small vertical axis wind generator pole is complete, and simulation on the influence of the structure forms and pole wall thickness on natural frequency has been done. The results can help solve the problem such as resonance between the wind turbine pole and the rotating turbine.

Calculating the aerodynamics of vertical axis wind turbines

2012 ◽  
Vol 34 (3) ◽  
pp. 169-184 ◽  
Author(s):  
Hoang Thi Bich Ngoc
Keyword(s):  
Wind Turbine ◽  
Incidence Angle ◽  
Vertical Axis ◽  
Rotor Blades ◽  
Vertical Axis Wind Turbine ◽  
Horizontal Axis Wind Turbine ◽  
Velocity Triangle ◽  
Relationship Of ◽  
The Relationship

Vertical axis wind turbine technology has been applied last years, very long after horizontal axis wind turbine technology. Aerodynamic problems of vertical axis wind machines are discussible. An important problem is the determination of the incidence law in the interaction between wind and rotor blades. The focus of the work is to establish equations of the incidence depending on the blade azimuth, and to solve them. From these results, aerodynamic torques and power can be calculated. The incidence angle is a parameter of velocity triangle, and both the factors depend not only on the blade azimuth but also on the ratio of rotational speed and horizontal speed. The built computational program allows theoretically selecting the relationship of geometric parameters of wind turbine in accordance with requirements on power, wind speed and installation conditions.

Design and Analysis of Vertical Axis Wind Turbine

2017 ◽  
Author(s):  
Prof. R.K. Bhoyar ◽  
Prof. S.J. Bhadang ◽  
Prof. N.Z. Adakane ◽  
Prof. N.D. Pachkawade
Keyword(s):  
Wind Turbine ◽  
Vertical Axis ◽  
Vertical Axis Wind Turbine
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