对复合材料舵和传统钢质舵的振动特性进行试验研究和对比分析。通过设计相关试验模型，对复合材料舵和钢质舵的前三阶固有振动模态及10 Hz～1 kHz频段内结构的动态响应进行测试，并对试验结果进行对比分析。研究结果表明：复合材料舵与钢质舵的模态振型基本相同，但复合材料舵所对应的固有频率高于钢质舵；同时，在白噪声激励载荷作用下，10 Hz～1 kHz频段内，复合材料舵整体加速度总级较钢质舵降低可达15 dB，且复合材料舵在局部壳板振动抑制方面明显优于钢质舵。本文研究将为复合材料舵的优化设计和工程应用提供参考和指导。
The experiment research and comparative analysis of vibration characters of composite rudder and traditional steel rudder have been conducted in this paper. By designing related test model, Tests of steel rudder and composite rudder's first three rank mode of vibration and dynamic response of structure in the 10 Hz~1 000 Hz frequency band have been conducted and the results have been compared and analyzed. The results show that: steel rudder are basically the same with composite rudder's modes of vibration, while composite rudder's inherent frequency is higher than steel rudder's inherent frequency. Meanwhile, acceleration level of composite rudder reduce 15 dB than steel rudder in the 10 Hz~1 000 Hz frequency band under the stimulus of the white noise, and restraining vibration of composite rudder is more effectual than steel rudder in part structural shell.
2017,39(8): 36-40 收稿日期：2016-05-30
DOI：10.3404/j.issn.1672-7649.2017.08.008
分类号：TB21
基金项目：国家自然科学基金面上资助项目（51479205）
作者简介：王永历(1991-)，男，硕士研究生，研究方向为结构强度与振动
参考文献：
[1] 张效慈, 司马灿, 吴有生.潜艇舵低速颤振现象及其预报[J].船舶力学, 2001, 5(1): 70-72.ZHANG Xiao-ci, SIMA Can, WU You-sheng.Low-speed flutter phenomenon of submarine rudder and its prediction[J].Journal of Ship Mechanics, 2001, 5(1): 70-72.
[2] 罗忠, 杨坤, 梅志远.纤维增强复合材料动力学固有特性及阻尼特性分析[J].材料导报, 2013, 27(21): 126-132.LUO Zhong, YANG Kun, MEI Zhi-yuan.The analysis of the dynamic natural characteristics and damping of the GFRP laminate composite[J].Materials Review, 2013, 27(21): 126-132.
[3] BREBU MIHAI, BHASKAR THALLADA, MURAI KAZUYA, et al.Thermal degradation of PE and PS mixed with ABS-Br and debromination of pyrolysis oil by Fe-and Ca-based catalysts [J].Polym Degrad Stab, 2004, 84(1): 459.
[4] ZHOU Li-min, WANG Yi-ping, HUANG Qun-wu, et al.Thermal gravimetric characteristics and kinetic of plastic ang biomass blend co-pyrolysis [J].Fuel Process Techno, 2006, 87: 963.
[5] 朱锡, 石勇, 梅志远.夹芯复合材料在潜艇声隐身结构中的应用及其相关技术研究[J].中国舰船研究, 2007, 2(3): 34-39.ZHU Xi, SHI Yong, MEI Zhi-yuan.Vibration characteristics analysis of sandwich composite acoustic stealth rudder[J].Chinese Journal of Ship Research, 2007, 2(3): 34-39.
[6] 杨坤, 梅志远, 李华东.粘弹性复合材料夹芯板稳态响应分析[J].振动与冲击, 2013, 23(7): 88-92.YANG Kun, MEI Zhi-yuan, LI Hua-dong.Steady response analysis for a composite sandwich plate with viscoelastic core layer based on Kelvin model[J].Journal of Vibration and Shock, 2013, 23(7): 88-92.
[7] 朱锡,石勇,李永清, 等.夹层复合材料舵结构设计与声隐身性能的研究[J].武汉理工大学学报, 2008, 30(9): 36-39.ZHU Xi, SHI Yong, LI Yong-qing.Structure design and sound stealth property test on sandwich composites rudder[J].Journal of Wuhan University of Technology, 2008, 30(9): 36-39.
[8] 刘昕, 朱锡, 梅志远, 等.隐身夹芯复合材料舵振动特性研究[J].船海工程.2009, 38(6): 176-179.LIU Xin, ZHU Xi, MEI Zhi-yuan, et al.Vibration characteristics analysis of sandwich composite acoustic stealth rudder[J].Ship & Ocean Engineering, 2009, 38(6): 176-179.
[9] 曹冲锋, 杨世锡, 杨将新.基于白噪声统计特性的振动模式提取方法[J].机械工程学报, 2010, 46(3): 65-70.CAO Chong-feng, YANG Shi-xi, YANG Jiang-xin.Vibration mode extraction method based on the characteristics of white noise[J].Journal of Mechanical Engineering, 2010, 46(3): 65-70.
[10] 孙鑫晖.频域模态参数识别研究及其软件实现[D].南京:南京航空航天大学, 2010.
