不同筋材对复合材料加筋板水中透声性能影响试验研究  

Experimental study on effect of different reinforcements on sound tranmission performance of composite stiffened plates in water

作　　者：赵欣阳 祝熠 梅志远[1] 付晓 ZHAO Xinyang;ZHU Yi;MEI Zhiyuan;FU Xiao(College of Naval Architecture and Ocean Engineering,Naval University of Engineering,Wuhan 430033,China)

机构地区：[1]海军工程大学舰船与海洋学院,湖北武汉430033

出　　处：《中国舰船研究》2023年第3期197-204,共8页Chinese Journal of Ship Research

摘　　要：[目的]为探索使用复合材料筋材替代钢质桁架的可行性,针对加筋板近场声散射特性,提出复合材料筋材设计方案,并开展相关试验研究。[方法]首先,基于水声材料测试标准建立加筋板透声性能试验方案;然后,通过消声水池自由场标定及扁钢与钢质桁架的透声性能对比,验证试验环境与试验条件的可行性;最后,通过试验分析正入射与斜入射条件下加筋板的透声性能规律。[结果]结果表明:在正入射与斜入射条件下,加筋板的透声性能规律基本相同,其透声性能依次为裸板>钢质桁架>复合材料帽型加筋板;复合材料筋材的透声性能受入射面横截面积的影响较大,横截面积越小的加筋板其透声性能越优。[结论]研究结合试验分析探索了未来研制高透声复合材料加筋板的方向,即在保证弯曲刚度相等的前提下,复合材料筋材应尽量采用镂空结构形式,并尽可能降低其入射面横截面积;另在设计筋材时应尽可能减少材料使用的种类,以减少筋材中不同材料界面的数量。[Objectives]In order to explore the feasibility of replacing steel trusses with composite rein-forcements,this study proposes a composite reinforcement design for the near-field acoustic scattering charac-teristics of stiffened plates,and conducts the requisite experiments.[Methods]First,based on the hy-droacoustic material testing standards,a test protocol for the sound transmission performance of stiffened plates is established;second,the feasibility of the test environment and conditions is verified through the free field calibration of an anechoic pool and comparisons between the sound transmission performance of flat steel and steel trusses;finally,the sound transmission performance law of stiffened plates under the conditions of positive and oblique incidence is analyzed through experiments.[Results]The results show that the sound transmission performance of stiffened plates under the conditions of positive and oblique incidence is basic-ally the same,and in the order of bare plate>steel truss>composite stiffened plate.The sound transmission performance of composite stiffened plates is influenced by the cross-sectional area of the incident surface,and the smaller the cross-sectional area,the better the performance.[Conclusions]Combined with experiment-al analysis to explore the future development direction of high sound transmission composite stiffened plates and ensure equal bending stiffness,the design of composite reinforcements should try to use a hollow structur-al form and reduce the cross-sectional area of the incident surface as far as possible;in addition,the types of material used should be minimized so as to reduce the number of different material interfaces in reinforce-ments.

关 键 词：复合材料 加筋板 透声性能 等弯曲刚度 斜入射 

分 类 号：U668.3[交通运输工程—船舶及航道工程]