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research-article

Research on the influence of helical Strakes and it’s parameters for dynamic response of platform of floating wind turbine based on optimization method of orthogonal design

[+] Author and Article Information
Qinwei Ding

School of Energy and Power Engineering, University of Shanghai for Science and Technology, 516 Jungong Rd, YangPU District, 200093, Shanghai, China
m18301928952@163.com

Chun Li

School of Energy and Power Engineering, University of Shanghai for Science and Technology, 516 Jungong Rd, Yangpu District, 200093, Shanghai, China
lichunusst@163.com

Binxin Li

Asia Capital Reinsurance, #08-01 Suntec tower 4, Singapore 429081
wric123@gmail.com

Wenxing Hao

School of Energy and Power Engineering, University of Shanghai for Science and Technology, 516 Jungong Rd, Yangpu District, 200093, Shanghai, China
hao_wtar@163.com

Zhou Ye

School of Energy and Power Engineering, University of Shanghai for Science and Technology, 516 Jungong Rd, Yangpu District, 200093, Shanghai, China
ye_pei_yu@163.com

1Corresponding author.

ASME doi:10.1115/1.4037091 History: Received January 05, 2016; Revised May 26, 2017

Abstract

The stability of platform structure is the paramount guarantee of the safe operation of the offshore floating wind turbine. The NREL 5MW floating wind turbine is established based on the OC3-Hywind Spar Buoy platform with the supplement of helical strakes for the purpose to analysis the impact of helical strakes on the dynamic response of the floating wind turbine Spar platform. The dynamic response of floating wind turbine Spar platform under wind, wave and current loading from the impact of number, height and pitch ratio of the helical strakes is analysed by the radiation and diffraction theory, the finite element method and orthogonal design method. The result reveals that the helical strakes can effectively inhibit the dynamic response of the platform but enlarge the wave exciting force; the best parameter combination is 2 pieces of helical strakes with height of 15%D and the pitch ratio of 5; the height of the helical strake and its pitch ratio have significant influence on pitch response.

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