重力式基础陆上风机结构长期动力特性试验研究
朱则昊,仝福生,国振,王立忠,张佳利,陈江波

Model test on long-term dynamic characteristics study of gravity foundation onshore wind turbine
Ze-hao ZHU,Fu-sheng TONG,Zhen GUO,Li-zhong WANG,Jia-li ZHANG,Jiang-bo CHEN
图 5 结构自振频率随循环加载次数变化关系图(CLT-1~CLT-4)
Fig.5 Change of natural frequency with number of cycles (CLT-1~CLT-4)