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Effects of Material Characteristics on Nonlinear Dynamics of Viscoelastic Axially Functionally Graded Material Pipe Conveying Pulsating Fluid

材料特性对输送脉动流体的粘弹性轴向功能梯度管非线性动力行为的影响

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Abstract

The nonlinear dynamic behaviors of viscoelastic axially functionally graded material (AFG) pipes conveying pulsating internal flow are very complex. And the dynamic behavior will induce the failure of the pipes, and research of vibration and stability of pipes becomes a major concern. Considering that the elastic modulus, density, and coefficient of viscoelastic damping of the pipe material vary along the axial direction, the transverse vibration equation of the viscoelastic AFG pipe conveying pulsating fluid is established based on the Euler-Bernoulli beam theory. The generalized integral transform technique (GITT) is used to transform the governing fourth-order partial differential equation into a nonlinear system of fourth-order ordinary differential equations in time. The time domain diagram, phase portraits, Poincaré map and power spectra diagram at different dimensionless pulsation frequencies, are discussed in detail, showing the characteristics of chaotic, periodic, and quasi-periodic motion. The results show that the distributions of the elastic modulus, density, and coefficient of viscoelastic damping have significant effects on the nonlinear dynamic behavior of the viscoelastic AFG pipes. With the increase of the material property coefficient k, the transition between chaotic, periodic, and quasi-periodic motion occurs, especially in the high-frequency region of the flow pulsation.

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Funding

This work is supported by the National Natural Science Foundation of China (52171288, 51890914), the Key Research and Development Program of Shandong Province (Major Innovation Project) (2022CXGC020405), the National Ministry of Industry and Information Technology Innovation Special Project—Engineering Demonstration Application of Subsea Oil and Gas Production System-Subject 4 “Research on Subsea Christmas Tree and Wellhead Offshore Testing Technology” [MC-201901-S01-04], the Fundamental Research Funds for the Central Universities (20CX02410A), the Development Fund of Shandong Key Laboratory of Oil & Gas Storage and Transportation Safety, and CNPq, CAPES and FAPERJ of Brazil.

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Correspondence to Guangming Fu  (付光明).

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The authors have no competing interests to declare that are relevant to the content of this article.

Article Highlights

• The transverse vibration equation is established for the viscoelastic axially functionally graded material (AFG) pipe conveying pulsating fluid;

• The generalized integral transform technique is developed to analyze the nonlinear dynamics of AFG pipes;

• The effects of the elastic modulus, density, and coefficient of viscoelastic damping on nonlinear dynamics of AFG pipes are discussed.

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Fu, G., Tuo, Y., Zhang, H. et al. Effects of Material Characteristics on Nonlinear Dynamics of Viscoelastic Axially Functionally Graded Material Pipe Conveying Pulsating Fluid. J. Marine. Sci. Appl. 22, 247–259 (2023). https://doi.org/10.1007/s11804-023-00328-8

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  • DOI: https://doi.org/10.1007/s11804-023-00328-8

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