梁结构疲劳刚度退化对模态频率的影响
卫军(),杜永潇,梁曼舒
Influence of fatigue stiffness degradation for beam structure on modal frequency
Jun WEI(),Yong-xiao DU,Man-shu LIANG

图 7. 跨中疲劳抗弯刚度退化曲线

Fig.7. Fatigue bending stiffness degradation curves for mid-span