Parametric resonance of a composite cylindrical shell containing pulsatile flow of hot fluid

Kadoli, Ravikiran; Ganesan, N.

doi:10.1016/j.compstruct.2003.12.002

Cited by 16 publications

(7 citation statements)

References 26 publications

(48 reference statements)

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“…Introducing Eq. (18) in Eq. (20), the perturbation pressure on the inner shell or outer shell is given by…”

Section: Fluid-shell Interactions and Thermal Loadsmentioning

confidence: 97%

“…Ganesan and Pradeep [17] investigated stability and vibrations of cylindrical shells containing still hot liquid by using a semi-analytical finite element method. The similar work on dynamic stability of a cylindrical shell conveying hot fluid was conducted by Pavikiran and Ganesan [18]. The effect of water temperature on instability of a shell is examined.…”

Section: Introductionmentioning

confidence: 96%

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Dynamics and stability of a cylindrical shell subjected to annular flow including temperature effects

Wang

Zhang

2015

Arch Appl Mech

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Considering thermal loads, dynamics and stability of an outer cylindrical shell conveying swirling fluid in the annulus between the inner shell-type body and the outer shell are investigated by the travelling wave approach. Shell motions are considered based on Donnell-type shell theory. The fluid forces are described by means of the potential flow theory, and thermal loads are determined by the thermo-elastic theory. The numerical analyses are conducted by a zero-level contour method. The study shows the effects of annular gaps and boundary conditions on stability of shells. The influences of angular flow on the critical axial velocity and axial flow on the critical annular velocity are discussed. Moreover, the thermal loads decrease the critical flow velocity markedly and the critical temperature rise is found.

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“…Introducing Eq. (18) in Eq. (20), the perturbation pressure on the inner shell or outer shell is given by…”

Section: Fluid-shell Interactions and Thermal Loadsmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 96%

Dynamics and stability of a cylindrical shell subjected to annular flow including temperature effects

Wang

Zhang

2015

Arch Appl Mech

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“…The literature on the aspects of dynamic instabilities of composite shells conveying pulsating fluid is very much scarce. Kadoli and Ganesan (2004) studied the parametric instabilities in composite cylindrical shells containing a pulsating hot fluid flow. A coupled fluid-structure interaction problem for a pulsating flow of hot water was used along with the time independent geometric stiffness matrix formulated based on the initial stresses due to flow of hot fluid through the composite cylindrical shell.…”

mentioning

confidence: 99%

Nonlinear vibrations of plates in axial pulsating flow

Tubaldi

Amabili

Alijani

2015

Journal of Fluids and Structures

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“…The upper and lower bounds of design variables and stochastic variables are furnished in Table 1 and Table 2 respectively showing respective upper control limit (UCL) and lower control limit (LCL). The reliability based optimization problem is studied with an objective of weight [i.e., volume(V)×density (ρ)] minimization and to avoid resonance [37][38][39] as defined below: (14) where i =1,2,. .…”

Section: Detail Optimization Schemementioning

confidence: 99%

A Response Surface Modelling Approach for Resonance Driven Reliability Based Optimization of Composite Shells

Dey

Mukhopadhyay²,

Khodaparast³

et al. 2016

Period. Polytech. Civil Eng.

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IntroductionThe development of reliable composite structures in production process is always subjected to large variability due to manufacturing imperfection and uncertain operational factors. In practice, an additional factor of safety is assumed by designers due to difficulty in assessing reliability to avoid resonance in conjunction to uncertainties of stochastic natural frequencies. This existing practice of designer results in either an ultraconservative (overestimation of material cost) or an unsafe design. Hence, it is needed to overcome this current limitation wherein the design of composites are restricted to a deterministic regime despite of rapidly increasing demands of technological, economical and safety needs. Many literatures are available dealing with uncertainty quantification of composite structures [1][2][3]. Moreover, the reliability in conjunction to cost component involved in weight optimization of such composite structures are always a challenge for the designers. The common cause of employing composite structures in many applications (such as aircraft, civil structures) is weight sensitiveness wherein the objective of design optimization [4] is to lower the weight for achieving the better performance. For example, in structural design problem, the need of computation of the natural frequency is required to avoid the resonance which can vary with the uncertain geometric and material properties of the structure. In such engineering applications with complex systems, the consequences of uncertain system behaviour become severe in terms of cost and effort. The assessment of probability of failure and the need to improve the reliability of the systems have become essentially important for structural safety. Such necessities in turn raise the need for reliability based design optimization (RBDO) analysis [5]. The uncertain variation of system parameters can be mathematically coupled with optimization tools such as genetic algorithm (GA) to achieve safety as well as cost-effectiveness.Many studies are carried out by applying RBDO methods for optimal design of shallow composite structures. The random loading and material properties including manufacturing uncertainties are considered for example in [6][7][8][9][10][11]. Miki [12] and Fukunaga and Chou [13] proposed a graphical optimization method using lamination parameters for stiffened compos-

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Parametric resonance of a composite cylindrical shell containing pulsatile flow of hot fluid

Cited by 16 publications

References 26 publications

Dynamics and stability of a cylindrical shell subjected to annular flow including temperature effects

Dynamics and stability of a cylindrical shell subjected to annular flow including temperature effects

Nonlinear vibrations of plates in axial pulsating flow

A Response Surface Modelling Approach for Resonance Driven Reliability Based Optimization of Composite Shells

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