轻工机械2026，Vol.44Issue(4)：10-15,24,7.DOI:10.3969/j.issn.1005-2895.2026.04.002
基于模态分析的冲击能量与温度条件对碳纤维复材一阶固有频率的影响
Influence of Impact Energy and Temperature Conditions on First-Order Natural Frequency of Carbon Fiber Composites Based on Modal Analysis
夏子良 1祖洪飞1
作者信息
- 1. 浙江理工大学 机械工程学院,浙江 杭州 310018
- 折叠
摘要
Abstract
To address issues such as fiber breakage and material extrusion caused by impact during the service of carbon fiber composites,the author proposed a dynamic non-destructive testing method based on modal analysis.Taking epoxy resin carbon fiber plates as the research object,drop hammer impact tests(single impact energy of 10-45 J)combined with modal analysis were conducted to investigate the effects of different impact energies and temperatures on the first-order natural frequencies of the material.Experimental results show a strong correlation between impact energy and the first-order frequency of carbon fiber plate.Additionally,low temperatures(-10℃)primarily affect the first-order natural frequencies when the single impact energy is 25-30 J.The medium and high temperature(40℃)has the strongest influence on the first-order natural frequency of the carbon fiber board when the single impact energy is 20 J.The high temperature(90℃)makes the first-order natural frequency change more smoothly.Compared with static methods,the dynamic non-destructive testing method based on modal analysis has the advantages of simpler operation,faster detection speed,lower detection cost,and a certain predictive capability for the critical state of internal material damage.关键词
碳纤维复合材料/无损检测/模态分析/冲击损伤/温度效应Key words
carbon fiber composite material/non-destructive testing/modal analysis/impact damage/temperature effect分类
机械制造引用本文复制引用
夏子良,祖洪飞..基于模态分析的冲击能量与温度条件对碳纤维复材一阶固有频率的影响[J].轻工机械,2026,44(4):10-15,24,7.
