湖南大学学报（自然科学版）
湖南大學學報（自然科學版）
호남대학학보（자연과학판）
JOURNAL OF HUNAN UNIVERSITY(NATURAL SCIENCES EDITION)
2015年
5期
29-35
,共7页
陈俊岭%阳荣昌%马人乐
陳俊嶺%暘榮昌%馬人樂
진준령%양영창%마인악
风力发电塔%格构式塔架%结构优化%粒子群算法%四角钢十字形组合截面
風力髮電塔%格構式塔架%結構優化%粒子群算法%四角鋼十字形組閤截麵
풍력발전탑%격구식탑가%결구우화%입자군산법%사각강십자형조합절면
wind turbines%lattice tower%structural optimization%particle swarm optimization%four-angle combined cross-section
为解决传统单管风力发电塔架在大型风电机组应用中加工、制作、安装和运输成本大幅上升的问题，提出一种新型组合式塔架结构，并对其进行结构优化设计。该塔架上部为传统单管式塔架，下部为四角钢十字形组合截面塔柱的格构式塔架。通过对四角钢十字形组合截面的轴压极限承载力进行分析，得到组合截面的稳定系数曲线。基于粒子群算法，综合考虑应力、频率和长细比约束等因素，对下部格构式塔架的形状和杆件截面进行优化。分析结果表明，组合式塔架结构可以解决传统单管式风力发电塔架的运输问题，且用钢量节省约34%。
為解決傳統單管風力髮電塔架在大型風電機組應用中加工、製作、安裝和運輸成本大幅上升的問題，提齣一種新型組閤式塔架結構，併對其進行結構優化設計。該塔架上部為傳統單管式塔架，下部為四角鋼十字形組閤截麵塔柱的格構式塔架。通過對四角鋼十字形組閤截麵的軸壓極限承載力進行分析，得到組閤截麵的穩定繫數麯線。基于粒子群算法，綜閤攷慮應力、頻率和長細比約束等因素，對下部格構式塔架的形狀和桿件截麵進行優化。分析結果錶明，組閤式塔架結構可以解決傳統單管式風力髮電塔架的運輸問題，且用鋼量節省約34%。
위해결전통단관풍력발전탑가재대형풍전궤조응용중가공、제작、안장화운수성본대폭상승적문제，제출일충신형조합식탑가결구，병대기진행결구우화설계。해탑가상부위전통단관식탑가，하부위사각강십자형조합절면탑주적격구식탑가。통과대사각강십자형조합절면적축압겁한승재력진행분석，득도조합절면적은정계수곡선。기우입자군산법，종합고필응력、빈솔화장세비약속등인소，대하부격구식탑가적형상화간건절면진행우화。분석결과표명，조합식탑가결구가이해결전통단관식풍력발전탑가적운수문제，차용강량절성약34%。
Traditional tubular wind turbine towers may result in a great increase in the fabricating, mounting and transporting cost for large wind turbine systems.A new composite tower was proposed and then the structural optimization was carried out.The new structure is composed of a lattice tower at the bottom with four-angle combined cross-section legs and the steel tube at the top.The stability coefficients curve of the four-angle combined cross-section column subjected to axial compression was first obtained by a series of ultimate bearing capacity analyses.Considering the strength,frequency and slenderness ratio as constraint conditions,the shape and section optimization of the lower lattice tower was carried out.The optimal results show that the proposed structural system can resolve the scarcity of traditional tubular steel towers in transportation and has a 34% less steel consumption.
