摘要
为研究编织复合材料充液管道流固耦合特性,采用传递矩阵法,从各向异性材料本构方程、物理方程与边界条件出发,建立复合材料管道一维流固耦合动力学模型。将模型退化成各向同性管进行计算方法验证,并进一步开展复合材料管FEM软件流固耦合验证。计算结果表明:该计算结果与经典“4方程”模型及有限元三维模型结果一致。在证明了该模型及计算方法的正确性后,进一步研究复合材料管中的铺设角度与纤维体积分数对充液管路固有频率及波数的影响。研究结果表明:提高增强材料体积分数,管路固有频率增加,管路传播波数降低;铺设角度增加,固有频率降低,管壁中传播波数增加。该研究结果可为充液管路的设计与控制提供参考。
Here,to study fluid-structure coupled characteristics of braided composite liquid-filled pipeline,a ID fluid-structure coupled dynamic model of composite pipeline was established using the transfer matrix method based on anisotropic material constitution equation,physical equation and boundary conditions.The model was degenerated into isotropic pipeline to verify calculation method,and the fluid-structure interaction verification of composite pipeline FEM software was further performed.The calculation results showed that the calculation results using the proposed method are consistent to those of the classical"4 equation"model and the finite element 3D model.After proving the correctness of the proposed model and calculation method,effects of laying angle and fiber volume fraction in composite pipeline on natural frequencies and wave number of liquid-filled pipeline were further studied.The results showed that natural frequencies of pipeline increase and its propagation wave number decreases with increase in volume fraction of reinforcement material;as laying angle increases,natural frequencies decrease,and propagation wave number in pipe wall increases;the study results can provide a reference for design and control of liquid-filled pipeline.
作者
吴江海
苏明珠
尹志勇
孙玉东
WU Jianghai;SU Mingzhu;YIN Zhiyong;SUN Yudong(Key Lab of Ship Vibration and Noise,China Ship Scientific Research Center,Wuxi 214082,China)
出处
《振动与冲击》
EI
CSCD
北大核心
2023年第7期99-105,共7页
Journal of Vibration and Shock
基金
船舶振动噪声重点实验室基金(JCKY2019207CI02)
国家留学基金委公派留学(202008320401)。
关键词
流固耦合
复合材料
充液管路
频域响应
传递矩阵法
fluid-structure interaction
composite material
liquid-filled pipeline
response in frequency domain
transfer matrix method
