摘要
采用强耦合法对张力腿平台风电机组支撑结构进行模态分析,充分认识张力腿平台结构的动力特性。由计算结果可知:整体振型复杂,不同构件振型变化较大,平台的振动对上部塔架有连带作用;调整张力钢缆长度和平台水下位置对平台结构的动力特性影响不大,张力腿平台结构对水深、环境激励荷载具有很好的适应性;通过共振分析,有效区分结构自振频率和环境载荷的激励频率,避免共振危害的发生,可以满足海洋复杂环境下风电机组的正常运行。
The strong-interaction method was used in analyzing the coupled model, and the dynamic characteristics of the TLP for offshore wind turbine support were recognized. As the calculated results showed that the mode shapes of the structure are complex, and change greatly between different components, the mode shapes of the platform are related to the towers. The mode shapes of the structure didn＇ t change much after adjusting the length of the tension wire and the underwater location of the platform, the TLP has good adaptability for the different water depth and the environment stim- ulation loads; The resonance vibration analysis method was used in distinguishing the natural vibration frequencies of TLP from the frequencies of condition loads, and then the resonance vibration will be avoided, so the offshore wind turbine can work normally in the complex conditions.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2010年第9期1198-1203,共6页
Acta Energiae Solaris Sinica
关键词
海上风电机组
张力腿平台
流固耦合
动力特性
首摇
共振
offshore wind turbine
Tension Leg Platform （TLP）
fluid structure interaction
dynamic characteristics
sway
resonance vibration
