Dynamic characteristics of segmental assembled HH120 wind turbine tower

Dongliang Zhang; Hom Bahadur Bhattarai; Fei Wang; Xuesen Zhang; Hyeon Jong Hwang; Xiangguo Wu; Yunchao Tang; Soonpil Kang

doi:10.1016/j.engstruct.2023.117438

Dynamic characteristics of segmental assembled HH120 wind turbine tower

Dongliang Zhang
, Hom Bahadur Bhattarai
, Fei Wang
, Xuesen Zhang
, Hyeon Jong Hwang
, Xiangguo Wu^*
, Yunchao Tang
, Soonpil Kang^*

^*Corresponding author for this work

School of Civil Engineering

PowerChina Huadong Engineering Corporation Limited
School of Civil Engineering, Harbin Institute of Technology
CGN New Energy Holdings Co., Ltd.
Konkuk University
Fuzhou University
Zhongkai University of Agriculture and Engineering
Naval Postgraduate School

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

The analysis of dynamic characteristics is crucial in the design of wind tower structures. The dynamic behavior of wind towers is primarily influenced by structural stiffness and mass distribution. In particular, the segment thickness of prefabricated concrete towers should be selected and optimized based on computed results of stress distribution in order to achieve the desired dynamic performance. The main objective of this research is to investigate the effects of design factors, such as segmental thickness and top mass of wind blades, hub, and nacelle, on the natural frequencies and vibration modes of the precast concrete towers. For the finite element analysis, a high-rise wind turbine tower with a hub height of 120 m (HH120 tower) is utilized. Finally, the theoretical model for the reduced degrees of freedom system is validated using the results from the finite element analysis.

Original language	English
Article number	117438
Journal	Engineering Structures
Volume	303
DOIs	https://doi.org/10.1016/j.engstruct.2023.117438
State	Published - 15 Mar 2024

Keywords

Dynamic characteristics
Finite element analysis
Lumped mass
Modal analysis
Precast wind turbine tower

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10.1016/j.engstruct.2023.117438

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title = "Dynamic characteristics of segmental assembled HH120 wind turbine tower",

abstract = "The analysis of dynamic characteristics is crucial in the design of wind tower structures. The dynamic behavior of wind towers is primarily influenced by structural stiffness and mass distribution. In particular, the segment thickness of prefabricated concrete towers should be selected and optimized based on computed results of stress distribution in order to achieve the desired dynamic performance. The main objective of this research is to investigate the effects of design factors, such as segmental thickness and top mass of wind blades, hub, and nacelle, on the natural frequencies and vibration modes of the precast concrete towers. For the finite element analysis, a high-rise wind turbine tower with a hub height of 120 m (HH120 tower) is utilized. Finally, the theoretical model for the reduced degrees of freedom system is validated using the results from the finite element analysis.",

keywords = "Dynamic characteristics, Finite element analysis, Lumped mass, Modal analysis, Precast wind turbine tower",

author = "Dongliang Zhang and Bhattarai, \{Hom Bahadur\} and Fei Wang and Xuesen Zhang and Hwang, \{Hyeon Jong\} and Xiangguo Wu and Yunchao Tang and Soonpil Kang",

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doi = "10.1016/j.engstruct.2023.117438",

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journal = "Engineering Structures",

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TY - JOUR

T1 - Dynamic characteristics of segmental assembled HH120 wind turbine tower

AU - Zhang, Dongliang

AU - Bhattarai, Hom Bahadur

AU - Wang, Fei

AU - Zhang, Xuesen

AU - Hwang, Hyeon Jong

AU - Wu, Xiangguo

AU - Tang, Yunchao

AU - Kang, Soonpil

PY - 2024/3/15

Y1 - 2024/3/15

N2 - The analysis of dynamic characteristics is crucial in the design of wind tower structures. The dynamic behavior of wind towers is primarily influenced by structural stiffness and mass distribution. In particular, the segment thickness of prefabricated concrete towers should be selected and optimized based on computed results of stress distribution in order to achieve the desired dynamic performance. The main objective of this research is to investigate the effects of design factors, such as segmental thickness and top mass of wind blades, hub, and nacelle, on the natural frequencies and vibration modes of the precast concrete towers. For the finite element analysis, a high-rise wind turbine tower with a hub height of 120 m (HH120 tower) is utilized. Finally, the theoretical model for the reduced degrees of freedom system is validated using the results from the finite element analysis.

AB - The analysis of dynamic characteristics is crucial in the design of wind tower structures. The dynamic behavior of wind towers is primarily influenced by structural stiffness and mass distribution. In particular, the segment thickness of prefabricated concrete towers should be selected and optimized based on computed results of stress distribution in order to achieve the desired dynamic performance. The main objective of this research is to investigate the effects of design factors, such as segmental thickness and top mass of wind blades, hub, and nacelle, on the natural frequencies and vibration modes of the precast concrete towers. For the finite element analysis, a high-rise wind turbine tower with a hub height of 120 m (HH120 tower) is utilized. Finally, the theoretical model for the reduced degrees of freedom system is validated using the results from the finite element analysis.

KW - Dynamic characteristics

KW - Finite element analysis

KW - Lumped mass

KW - Modal analysis

KW - Precast wind turbine tower

UR - https://www.scopus.com/pages/publications/85183686166

U2 - 10.1016/j.engstruct.2023.117438

DO - 10.1016/j.engstruct.2023.117438

M3 - 文章

AN - SCOPUS:85183686166

SN - 0141-0296

VL - 303

JO - Engineering Structures

JF - Engineering Structures

M1 - 117438

ER -

Dynamic characteristics of segmental assembled HH120 wind turbine tower

Abstract

Keywords

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