摘要
通过强迫振动试验测试,探索2.5维纬向树脂基编织复合材料平板结构中的振动非线性特性。为了抑制材料的大变形行为,将2.5维纬向树脂基编织复合材料平板结构置身于不同边界条件、不同幅值水平基础激励下进行扫频强迫振动试验。试验结果表明:在微幅变形条件下复合材料平板的强迫振动响应呈现出明显的非线性特征。
The vibration nonlinear characteristics of 2.5D weft resin-based braided composite plate structure is explored by forced vibration test.In order to suppress the large deformation behavior of the material,the plate structure of 2.5D weft resin-based braided composite,subjected to different boundary conditions and different levels of basic excitation,is tested by means of swept frequency forced vibration.The experimental results show that the forced vibration response of the composite plate presents obvious nonlinear characteristics under the condition of slight deformation.
作者
刘杰明
LIU Jieming(Aero-engine Thermal Environment and Structure Key Laboratory of Ministry of Industry and Information Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)
出处
《机械制造与自动化》
2022年第4期48-51,共4页
Machine Building & Automation
关键词
2.5维编织复合材料
树脂基
振动非线性
强迫振动
2.5D braided composite
resin-based
vibration nonlinearity characteristic
forced vibration
