taptap下载安装安卓学报 ›› 2025, Vol. 43 ›› Issue (4): 36-42.

• 未来机场及智能装备 • 上一篇    下一篇

湿热环境下挖补修理复合材料蜂窝板振动特性研究

  

  1. taptap下载安装安卓 a.交通科学与工程学院;b.航空工程学院,天津 300300
  • 收稿日期:2023-04-30 修回日期:2023-05-21 出版日期:2025-09-22 发布日期:2025-09-22
  • 作者简介:卢翔(1969— ),男,安徽阜阳人,教授,博士,研究方向为民机复合材料结构损伤与修理
  • 基金资助:
    国家自然科学基金项目(U2033209)

Study on vibration characteristics of scarf patch repaired composite honeycomb
panel under hygrothermal conditions

  1. a. College of Transportation Science and Engineering; b. College of Aeronautical Engineering, CAUC, Tianjin 300300, China 
  • Received:2023-04-30 Revised:2023-05-21 Online:2025-09-22 Published:2025-09-22

摘要:

通过对单侧阶梯挖补修理的碳纤维环氧树脂/芳纶纸蜂窝板进行模态测试和有限元仿真,探究了挖补修理
复合材料蜂窝板(简称蜂窝修理板)在湿热环境下的振动特性。 利用分段剪切变形理论和湿热等效理论建
立了单侧阶梯挖补蜂窝修理板的有限元模型;分析了在不同的湿热条件下,修理参数对蜂窝修理板固有频
率的影响。结果表明,挖补修理导致复合材料蜂窝板的刚度下降,挖补斜度越小,母板挖除越多,则蜂窝板
刚度越低,在湿热条件下,这种影响更为显著;在温度为 300~375 K、湿度为 0~0.75% 范围内,蜂窝修理板在
湿环境下固有频率降低比在热环境下明显;湿热联合作用对蜂窝修理板固有频率下降的影响比湿、热条件
单独作用的叠加更大。

关键词:

Abstract:

Through the modal test and finite element simulation of the carbon fiber epoxy resin/Nomex paper honeycomb
panel which is one-side stepped scarf patch repaired, the vibration characteristics of the scarf patch repaired
composite honeycomb panel (abbreviated as honeycomb repaired panel) under hygrothermal conditions were
explored. Using the segmented shear deformation theory and the hygrothermal equivalent theory, a finite element
model for one-side stepped scarf patch honeycomb repaired panel was established. The effect of repairing parameters on the natural frequency of honeycomb repaired panel under different hygrothermal conditions was analyzed. The results showed that the stiffness of the composite honeycomb panels decreases due to scarf patch repairing, and the smaller the slope of scarf patch, the more the motherboard is removed, the lower the stiffness of
the honeycomb panels, and the effect is more significant under hygrothermal conditions. In the range of temperature from 300 K to 375 K and humidity from 0 to 0.75%, the natural frequency of honeycomb repaired panels decreases more significantly in hygroscopic conditions than that in thermal conditions. The combined effect of hygrothermal has a greater impact on the natural frequency reduction of honeycomb repaired panels than superposition of the separate effects of hygroscopic and thermal conditions.

Key words:

acteristic

中图分类号: 

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