摘要
为了研究变角度铺层多孔纤维增强夹芯复合材料板在简支边界条件下的动力学性能,基于分层理论和Rayleigh-Ritz法建立了多孔双层纤维增强夹芯复合材料板的振动微分方程,并根据Navier法进行了求解。随后通过有限元动力学分析评估了不同角度的动力学特征以及设置了[0°/90°]和[±45°]两种铺层角度的多孔夹芯层合板进行模态振动试验,验证了理论模型的有效性。并基于理论模型对多孔双层夹芯复合材料板进行了参数化研究,通过遗传算法进行了结构优化。研究结果表明,孔隙率为94.854%、纤维铺层角度为45°倍数的层合板具有优异的动态性能,为结构的设计与制造提供了参考。
To analyze the dynamic performance of variable-angle ply porous fiber-reinforced sandwich composite panels under simply supported boundary conditions,the vibration differential equations for the porous double-layer sandwich panels were established based on the layerwise theory and the Rayleigh-Ritz method.These equations were subsequently solved using the Navier method.The dynamic characteristics at various ply angles were analyzed using Abaqus and the modal tests were performed with[0°/90°]and[±45°]ply orientations to validate the accuracy of the theoretical model.A parametric analysis of the porous double-layer sandwich panel was conducted using the theoretical model,followed by structural optimization using a genetic algorithm.The research reveals that laminated panels with a porosity of 94.854%and fiber ply angles in multiples of 45°exhibit outstanding dynamic performance.These results provide a reference for the design and manufacture of such structures.
作者
孙瑞骏
杨发展
张静静
SUN Ruijun;YANG Fazhan;ZHANG Jingjing(School of Mechanical and Automotive Engineering,Qingdao University of Technology,Qingdao 266520,China)
出处
《振动与冲击》
北大核心
2025年第12期110-121,129,共13页
Journal of Vibration and Shock
基金
国家自然科学基金(52305384)。
关键词
多孔纤维增强夹芯
自由振动
铺层角度
模态试验
有限元模拟
复合材料板
porous fiber-reinforced membrane
free vibration
ply angle
modal test
finite element simulation
composite panel
