负泊松比格栅对夹层板的振动特性影响分析  

Effects of negative Poisson’s ratio grating on vibration characteristics of sandwich panel

作　　者：邵岳川 王献忠[1,2] 马伟佳 齐文超 叶曦[4] 詹必鑫 SHAO Yuechuan;WANG Xianzhong;MA Weijia;QI Wenchao;YE Xi;ZHAN Bixin(Key Laboratory of High Performance Ship Technology,Ministry of Education,Wuhan University of Technology,Wuhan 430063,China;School of Naval Architecture,Ocean and Energy Power Engineering,Wuhan University of Technology,Wuhan 430063,China;Industry Development and Promotion Center,Ministry of Industry and Information Technology of the People’s Republic of China,Beijing 100846,China;Marine Design and Research Institute of China,Shanghai 200011,China)

机构地区：[1]武汉理工大学高性能舰船技术教育部重点实验室,武汉430063 [2]武汉理工大学船海与能源动力工程学院,武汉430063 [3]中华人民共和国工业和信息化部产业发展促进中心,北京100846 [4]中国船舶及海洋工程设计研究院,上海200011

出　　处：《振动与冲击》2025年第3期18-25,90,共9页Journal of Vibration and Shock

基　　金：国家自然科学基金项目(51779201,52271291)。

摘　　要：以负泊松比复合材料夹层板为研究对象,对其振动特性展开研究。首先,设计并制备了夹层板模型,对其进行空气中的强迫振动试验;然后,基于有限元法建立数值模型进行仿真计算,对比试验与仿真结果验证了夹层板数值模型的合理性与可靠性;最后,探究了芯层中格栅截面的形式、角度、厚度以及格栅材料对整体夹层板振动特性的影响。研究表明:当芯层等效密度相同时,内凹六边形格栅更有利于结构的减振设计;结构振动响应随截面角度的减小而减小;截面厚度变化对不同频段内振动响应曲线影响不同,但对响应的峰值大小影响较小;格栅材料为增强碳/玻璃混杂纤维的夹层板振动响应最小。Here,taking a negative Poisson’s ratio composite sandwich panel as the study object,its vibration characteristics were studied.Firstly,a sandwich panel model was designed and prepared,and forced vibration tests in air were conducted for it.Then,a numerical model was established based on finite element method for simulation calculations.The rationality and reliability of the numerical model built here were verified by comparing test results and simulation ones.Finally,effects of form,angle and thickness of grating cross-section as well as grating material in core layer on vibration characteristics of whole sandwich panel were explored.The study showed that when the equivalent density of core layer is the same,concave hexagonal grating is more conducive to structural vibration reduction design;structural vibration responses decrease with decrease in cross-sectional angle;changes of cross-sectional thickness have different effects on vibration response curves in different frequency bands,but these changes have less impact on response peak value;sandwich panels taking carbon/glass hybrid fiber as grating material have the smallest vibration response.

关 键 词：负泊松比 复合材料夹层板 振动特性 减振设计 

分 类 号：U663.95[交通运输工程—船舶及航道工程]