Non-linear dynamics of a simply supported fluid-conveying pipe subjected to motion-limiting constraints: Two-dimensional analysis

Geng, Peng; Xiong, Yingfei; Gao, Yun; Liu, Liming; Wang, Menghao; Zhang, Zheng

doi:10.1016/j.jsv.2018.08.018

Cited by 28 publications

(2 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…After repeated start-up and shutdown, these pipes do elongate, and therefore, longitudinal displacement becomes significant and must be evaluated (Carr et al., 2006; Watson et al., 2011). Peng et al. (2018) revealed that the longitudinal motion might influence the vibration amplitude of the pipe such that the effects on the nonlinear dynamics of the system are both quantitative and qualitative.…”

Section: Resultsmentioning

confidence: 99%

Cusp bifurcation of slightly curved tensioned pipe conveying hot pressurized fluid

Orolu

Fashanu

Oyediran

2018

Journal of Vibration and Control

View full text Add to dashboard Cite

In the course of operation of pipes conveying high temperature-high pressure fluid, unexpected behaviors leading to catastrophic failures have been observed. These have been attributed to uncertainties arising from issues not adequately addressed in the design. Sources of such uncertainties include geometric imperfection of the pipe and temperature variation. The perfectly straight pipe is assumed in most designs, but it is an idealization that does not exist in practice. In a bid to reduce the number of uncertainties in design and operation, a model governing nonlinear vibration of tensioned pipes conveying hot pressurized fluid that accounts for the geometric imperfection of the pipe is developed in this work. Coupled nonlinear equations of motion in both axial and transverse directions are obtained and solved using the eigenfunction expansion method. The influence of initial curvature, temperature, and the longitudinal vibration on the pipe are investigated. The results obtained show that a pipe with geometric imperfection exhibits cusp bifurcation and not supercritical pitchfork bifurcation.

show abstract

Section: Resultsmentioning

confidence: 99%

Cusp bifurcation of slightly curved tensioned pipe conveying hot pressurized fluid

Orolu

Fashanu

Oyediran

2018

Journal of Vibration and Control

View full text Add to dashboard Cite

show abstract

“…In other words, the critical flow velocity is capable of characterizing the stiffness performance of the pipes (Jweeg and Ntayeesh, 2016). From the perspective of dynamics, both the overall structural characteristics (Dai et al, 2013; Li et al, 2020b; Peng et al, 2018) and flow conditions (Li et al, 2013; Yang et al, 2014) jointly affect the dynamic phenomenon of the pipes under various loads. Dai et al (2020) studied the stability law of periodic fluid-conveying heterogeneous nanotube system.…”

Section: Introductionmentioning

confidence: 99%

On the impact process and stress field of functionally graded graphene reinforced composite pipes with a viscoelastic interlayer

Nie

Ren

et al. 2022

Journal of Vibration and Control

View full text Add to dashboard Cite

In the paper, impact process of the fluid-conveying pipes composed of graphene-reinforced composite layers and a viscoelastic interlayer is studied. The bending stress field, midspan displacement and contact force are focused on. Based on the theory of high-order displacement field, the governing equations are derived through the Hamilton variational principle. To obtain the approximate solution for the impact dynamics of pipes, the Galerkin method is extended to expand the generalized displacements into the schemes of triangular series. Further, by utilizing the orthogonality of the trigonometric series, the differential equations of various orders for impact dynamics are established. The fourth-order Runge–Kutta method is introduced to the truncated solutions. Subsequently, the parameter sensitivity of the transient responses in the impact stage is emphatically discussed. It is revealed that the insensitive parameters to contact force and midspan displacement have a great influence on the stress field. Furthermore, the evolution characteristics of the bending normal stress field are highlighted. Numerical results illustrate that the attenuation characteristics of bending stress field are determined by the coupling effects of internal flow and structural features on structural stiffness and damping.

show abstract

Dynamic Instability of Cantilever Pipe Conveying Fluid

Sahoo¹,

Panda

Das³

2021

Lecture Notes in Mechanical Engineering

View full text Add to dashboard Cite

Non-linear dynamics of a simply supported fluid-conveying pipe subjected to motion-limiting constraints: Two-dimensional analysis

Cited by 28 publications

References 30 publications

Cusp bifurcation of slightly curved tensioned pipe conveying hot pressurized fluid

Cusp bifurcation of slightly curved tensioned pipe conveying hot pressurized fluid

On the impact process and stress field of functionally graded graphene reinforced composite pipes with a viscoelastic interlayer

Dynamic Instability of Cantilever Pipe Conveying Fluid

Contact Info

Product

Resources

About