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 10. 模型梁有效预应力变化趋势

Fig.10. Effective prestressing trend of model beams