湖南大学学报(自然科学版)2017,Vol.44Issue(11):81-87,7.DOI:10.16339/j.cnki.hdxbzkb.2017.11.010
基于时域法的不同塔架风力机抗台风分析
Typhoon-resistance Analysis of Wind Turbines with Different Towers Based on Time-domain Method
摘要
Abstract
In order to investigate the typhoon-resistance of wind turbines with different towers ,four wind turbine integration models with different forms of towers were built by Abaqus finite element soft-ware and Autoregressive (AR) model was used to simulate the fluctuating wind for modal analyses and ty-phoon time-history analyses .The results show that the natural frequencies of wind turbines are greatly af-fected by wind rotor and nacelle .When the typhoon wind speed increases ,the maximum along-wind dis-placement of the steel conical-cylindrical tower climbs linearly ,while those of the other 3 towers show a significant nonlinear growth .As a lightweight flexible structure ,the steel tube lattice tower exhibits the greatest dynamic response ,and the steel conical-cylindrical tower exhibits the second one .Because of the considerable stiffness and weight ,the displacement response of the reinforced concrete conical-cylindrical tower is the minimum ,and the typhoon-resistance capability is the best .关键词
风力机塔架/时域分析/脉动风模拟/台风荷载/动力响应Key words
wind turbine tower/time-domain analysis/fluctuating wind simulation/typhoon load/dy-namic response分类
能源科技引用本文复制引用
刘新喜,邓宗伟,高乾丰..基于时域法的不同塔架风力机抗台风分析[J].湖南大学学报(自然科学版),2017,44(11):81-87,7.基金项目
国家自然科学基金资助项目(51378082),National Natural Science Foundation of China(51378082) (51378082)
湖南省教育厅科学研究重点项目(14A024),Key Project of Scientific Research of Hunan Educational Committee(14A024) (14A024)