复合材料充液管路流固耦合特性分析

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振动与冲击 ›› 2023, Vol. 42 ›› Issue (7) : 99-105.

论文

复合材料充液管路流固耦合特性分析

吴江海，苏明珠，尹志勇，孙玉东

作者信息 +

Fluid-structure interaction characteristics analysis of composite liquid-filled pipeline

WU Jianghai, SU Mingzhu, YIN Zhiyong, SUN Yudong

Author information +

文章历史 +

摘要

为研究编织复合材料充液管道流固耦合特性，本文采用传递矩阵法，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：本文计算结果与经典“4方程”模型及有限元三维模型结果一致。在证明了本文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。本文的研究结果可为充液管路的设计与控制提供参考。

Abstract

In order to study the fluid-structure coupling characteristics of woven composite laminate liquid-filled pipeline, a one-dimensional fluid-structure coupling dynamic model of pipeline is established based on the material constitutive equation and model physical equation by using the transfer matrix method. The model degenerates into isotropy for calculation method verification, and the fluid-structure coupling verification of composite FEM software is further carried out. The results show that the calculation results in this paper are consistent with the classical "4-equation" model and finite element three-dimensional model. After proving the correctness of the model and calculation method in this paper, the influence of the layer angle and volume fraction in the material pipe on the natural frequency and wavenumber of the liquid-filled pipeline is further studied and analyzed. The research results show that: increasing the volume fraction of the reinforcing material increases the natural frequency of the pipeline; the natural frequency decreases with the increase of laying angle; increasing the laying angle increases the wave number; on the contrary, with the increase of volume fraction, the wavenumber of pipeline decreases. The results of this paper can provide advice for the design and control of liquid-filled pipelines.

导出引用

吴江海，苏明珠，尹志勇，孙玉东. 复合材料充液管路流固耦合特性分析[J]. 振动与冲击, 2023, 42(7): 99-105

WU Jianghai, SU Mingzhu, YIN Zhiyong, SUN Yudong. Fluid-structure interaction characteristics analysis of composite liquid-filled pipeline[J]. Journal of Vibration and Shock, 2023, 42(7): 99-105

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