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Earthquake Engineering and Engineering Vibration 2024年第2期23卷 511-524页

作者： Lei Zhenbo Liu Gang Wang Hui Hui Yi School of Civil Engineering Chongqing UniversityChongqing 400045China Key Laboratory of New Technology for Construction of Cities in Mountain Area Chongqing UniversityMinistry of EducationChongqing 400045China

With the rapid development of large megawatt wind turbines,the operation environment of wind turbine towers(WTTs)has become increasingly *** particular,seismic excitation can create a resonance response and cause excessive vibration of the *** investigate the vibration attenuation performance of the WTT under seismic excitations,a novel passive vibration control device,called a prestressed tuned mass damper(PS-TMD),is presented in this ***,a mathematical model is established based on structural dynamics under seismic ***,the mathematical analytical expression of the dynamic coefficient is deduced,and the parameter design method is obtained by system tuning ***,based on a theoretical analysis and parameter design,the numerical results showed that the PS-TMD was able to effectively mitigate the resonance under the harmonic basal ***,the time-history analysis method is used to verify the effectiveness of the traditional pendulum tuned mass damper(PTMD)and the novel PS-TMD device,and the results indicate that the vibration attenuation performance of the PS-TMD is better than the *** addition,the PS-TMD avoids the nonlinear effect due to the large oscillation angle,and has the potential to dissipate hysteretic energy under seismic excitation.

关键词： wind turbine tower prestressed tuned mass damper vibration control seismic excitation numerical simulation

Multi-Objective Structural Optimization of a wind turbine tower

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Journal of Shanghai Jiaotong university(Science) 2020年第4期25卷 538-544页

作者： ZHENG Yuqiao ZHANG Lu PAN Yongxiang HE Zhe School of Mechanical and Electrical Engineering Lanzhou University of TechnologyLanzhou 730050China

The 2MW wind turbine tower is considered as the baseline configuration for structural *** design variables consist of the thickness and height located at the top tower *** relationships between the design variables and the optimization objectives(mass,equivalent stress,top displacement and fatigue life)are mapped on the basis of uniform design and regression ***,five solutions are developed by an algorithm,*** to their efficiency and applicability,the most suitable solution is *** approach yields a decrease of 0.48%in the mass,a decrease of 54.48%in the equivalent stress and an increase of 8.14%in fatigue life,as compared with existing tower *** improved wind turbine tower is obtained for this practice.

关键词： structural optimization wind turbine tower multi-objective optimization algorithm uniform design

Fatigue Life Prediction for Flange Connecting Bolts of wind turbine tower

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Journal of Shanghai Jiaotong university(Science) 2020年第4期25卷 526-530页

作者： YU Zelin SUN Pengwen WANG Dong School of Mechanical Engineering Inner Mongolia University of TechnologyHohhot 010051China Research Institute Beiqi Foton Motor Co.Ltd.Beijing 102206China

Flange joint part is the weak link of wind turbine *** view of the special structure,complex stress and easy failure of the connecting bolt of the wind turbine tower flange,the relationship between the external load of the tower section and the internal stress of the bolt is established by the finite element method,and the time series internal stress of the bolt is calculated by the Schmidt-Neuper *** S-N curve which is suitable for the connecting bolt material of the tower flange is selected by the GL2010 *** the basis of Miner’s fatigue cumulative damage theory and rain flow counting method,the fatigue strength of the whole ring bolt is roughly calculated,and the most dangerous part is *** axial symmetry model of screw connection is used for accurately calculating the fatigue cumulative damage of the bolt at the dangerous *** results show that the fatigue life of the bolts in the most dangerous position can meet the requirements,the engineering algorithm has advantages in determining the dangerous part of the whole ring bolt,and the finite element method has high accuracy in predicting the fatigue life of the bolts in the dangerous *** proposed method is feasible and effective in predicting the fatigue life of the flange joint bolts of the tower.

关键词： fatigue cumulative damage internal stress of bolt engineering algorithm flange connecting bolt wind turbine tower

Multi-Objective Structural Optimization of wind turbine tower Using Nondominated Sorting Genetic Algorithm

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Journal of Beijing Institute of Technology 2020年第3期29卷 417-424页

作者： Yuqiao Zheng Lu Zhang Fugang Dong Bo Dong School of Mechanical and Electronic Engineering Lanzhou University of TechnologyLanzhou 730050China

A multi-objective optimization process for wind turbine steel towers is described in present *** objective functions are tower top deformation and *** tower's height,radius and thickness are considered as design *** mathematical relationships between objective functions and variables were predicted by adopting a response surface methodology(RSM).Furthermore,the multi-objective non-dominated sorting genetic algorithm-II(NSGA-II)is adopted to optimize the tower structure to achieve accurate results with the minimum top deformation and total mass.A case study on a 2MW wind turbine tower optimization is given,which computes the desired tower structure *** results are compared with the original tower:a reduction of tower top deformation reduction by about 16.5%and a reduction of a mass by about 1.5%could be achieved for such an optimization process.

关键词： wind turbine tower statics analysis experiment design multi-objective optimization

A New Approach for Structural Optimization with Application to wind turbine tower

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Energy Engineering 2022年第3期119卷 1017-1029页

作者： Fugang Dong Yuqiao Zheng Hao Li Zhengwen He School of Mechanical and Electrical Engineering Lanzhou University of TechnologyLanzhou730050China

This work takes the bionic bamboo tower(BBT)of 2 MW wind turbine as the target,and the nondominated sorting genetic algorithm(NSGA-II)is utilized to optimize its structural ***,the objective functions are deformation and *** on the correlation analysis,the target optimization parameters were ***,the Kriging model of the BBT was established through the Latin Hypercube SamplingDesign(LHSD).Finally,the BBT structure is optimized withmultiple objectives under the constraints of strength,natural frequency,and *** comparison shows that the optimized BBT has an advantage in the Design Load Case(DLC).This advantage is reflected in the fact that the overall stability of the BBT has increased by 2.45%,while the displacement of the BBT has decreased by 0.77%.In addition,the mass of the tower is decreased by 1.49%.Correspondingly,the steel consumption of each BBT will be reduced by 2789 *** work provides a scientific basis for the structural design of the tower in service.

关键词： wind turbine tower bionic bamboo tower correlation analysis multi-objective optimization

wind turbine tower Optimization under Various Requirements by Using Genetic Algorithm

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Engineering（科研） 2010年第8期2卷 641-647页

作者： Serdar Yildirim Ibrahim Ozkol Faculty of Aeronautics and Astronautics Istanbul Technical UniversityIstanbulTurkey

The purpose of this study is to optimize the mass of 1.5 MW wind turbine steel tower performing Genetic Algorithm method (GA). In accordance with ASCE 7-98, AISC-89 and IEC61400-1 , the impact of loads on tower is calculated within the highest safety conditions against buckling strength of each sections of tower by means of GA codes. The stifness along tower is ensured entirely while the mass of tower is mitigated and optimized.

关键词： Mass Optimization Genetic Algorithm wind turbine tower

Rapid seismic analysis methodology for in-service wind turbine towers

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Earthquake Engineering and Engineering Vibration 2015年第3期14卷 539-548页

作者： Dai Kaoshan Huang Yichao Gong Changqing Huang Zhenhua Ren Xiaosong State Key Laboratory of Disaster Reduction in Civil Engineering and College of Civil Engineering Tongji University State Key Lab of Power Transmission Equipment & System Security and New Technology Chongqing University Department of Engineering Technology University of North Texas

The wind energy industry has been growing rapidly during the past *** with this growth,engineering problems have gradually emerged in the wind power industry,including those related to the structural reliability of turbine *** study proposes a rapid seismic analysis methodology for existing wind turbine tower *** method is demonstrated and validated using a case study on a 1.5 MW tubular steel wind turbine *** finite element(FE)models are developed *** tests are conducted to obtain the turbine tower’s vibrational *** tests include(1) remotely measuring the tower vibration frequencies using a long range laser Doppler Vibrometer and(2) monitoring the tower structural vibration by mounting accelerometers along the height of the tubular ***-situ measurements are used to validate and update the FE models of the wind turbine *** the updated FE model that represents the practical structural conditions,seismic analyses are performed to study the structural failure,which is defined by the steel yielding of the tubular *** research is anticipated to benefit the management of the increasing number of wind energy converters by providing an understanding of the seismic assessment of existing tubular steel wind turbine towers.

关键词： wind turbine tower fi eld testing laser sensing se