摘要
本文介绍了海上风机支撑结构的一般失效形式，提出了适合工程实践的设计分析方法，并以某一单立柱三桩的海上风机支撑结构为例，进行了最终极限强度计算、动力特性分析以及疲劳强度分析，计算结果表明：①疲劳工况是结构设计的控制工况；②支撑结构振动频率在风机工作频率1P和3P之间；③风机工作时的气动阻尼可有效减少支撑结构振动和疲劳损伤。本文提供方法和思路可为设计人员提供借鉴，对工程实践具有一定的指导作用。
This paper introduces the general failure modes, design and analysis method suitable for engineering practice the for support structures of offshore wind turbine. As an example, the ultimate strength, dynamic behavior and fatigue strength analysis are carried out for tripod type - a typical wind turbine support structure. Calculation results show that： ① Fatigue limit state is a control condition for the structure design; ② The vibration frequency of support structure is between 1P and 3P of the wind turbine; ③the aerodynamic damping can reduce vibration amplitude and fatigue damage of support structure. The methods and concepts given in this paper will serve as references for designers as well as guidelines for engineering industry.
出处
《中国造船》
EI
CSCD
北大核心
2011年第A02期169-179,共11页
Shipbuilding of China
