Flutter and bifurcation instability analysis of fluid-conveying micro-pipes sandwiched by magnetostrictive smart layers under thermal and magnetic field

Amiri, Ahad; Masoumi, Arian; Talebitooti, Roohollah

doi:10.1007/s10999-020-09487-w

Cited by 20 publications

(7 citation statements)

References 31 publications

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“…In the meantime, performing a review on literature, it can be seen that a few studies have been carried out in the several field of vibrations such as in-depth nonlinear dynamics [6][7][8][9][10], vibration control [11][12][13][14][15][16][17][18], microtubes or nanotubes in microfluidic devices [19][20][21][22], and pipes using functionally graded materials [23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Terfenol-D Layer in a Functionally Graded Pipe Transporting Fluid for Free Vibration

Patil¹,

Kadoli²

2023

Pipeline Engineering - Design, Failure, and Management

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Knowledge of natural frequency of pipeline conveying fluid has relevance to designer to avoid failure of pipeline due to resonance. The damping characteristics of pipe material can be increased by using smart materials like magnetostrictive namely, TERFENOL-D. The objective of the present chapter is to investigate vibration and instability characteristics of functionally graded Terfenol-D layered fluid conveying pipe utilizing Terfenol-D layer as an actuator. First, the divergence of fluid conveying pipe is investigated without feedback control gain and thermal loading. Subsequently, the eigenvalue diagrams are studied to examine methodically the vibrational characteristics and possible flutter and bifurcation instabilities eventuate in different vibrational modes. Actuation of Terfenol-D layer shows improved stability condition of fluid conveying pipe with variation in feedback control gain and thermal loading. Differential quadrature and differential transform procedures are used to solve equation of motion of the problem derived based on Euler-Bernoulli beam theory. Finally, the effects of important parameters including the feedback control gain, thermal loading, inner radius of pipe and density of fluid on vibration behavior of fluid conveying pipe, are explored and presented in numerical results.

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Section: Introductionmentioning

confidence: 99%

“…Failure due to filament wound with consideration of production process inconsistencies have been assessed by Rafiee et al [16]. Vibration and instability response of magnetostrictive sandwich cantilever fluid-conveying micro-pipes is investigated utilizing smart magnetostrictive layers as actuators by [18].…”

Section: Introductionmentioning

confidence: 99%

Terfenol-D Layer in a Functionally Graded Pipe Transporting Fluid for Free Vibration

Patil¹,

Kadoli²

2023

Pipeline Engineering - Design, Failure, and Management

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“…Smart microsystems conveying fluids, namely microtube or microfluid robots, have recently attracted great interest [1,2], especially for their promising applications in biomedical and bio-engineering technologies, including vascular-like networks [3], minimally invasive surgery [4], clinical in vivo [5], and drug delivery microtube robots targeted cancer cells [6].…”

Section: Introductionmentioning

confidence: 99%

Fractional‐order sliding mode control for a novel magneto‐electro‐elastic microtube robot

Tofigh,

Shah‐Mohammadi‐Azar,

Rezazadeh

et al. 2023

Asian Journal of Control

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In this paper, a tracking controller based on a non‐integer sliding surface is proposed for a magneto‐electro‐elastic (MEE) fluid‐conveying microtube robot. The smart/adaptive MEE material enables us to control the robot with no need for external sensors and actuators. The micro‐robot lateral motion is modeled by Euler–Bernoulli beam equations. The governing equation of the robot is derived using the constitutive equations of MEE materials and Maxwell's principle followed by Hamilton's variational method. Based on the extracted dynamic model, a novel non‐integer order sliding mode controller is introduced to suppress the microtube vibration and to provide robust path following for the robot tip. This control approach is compatible with the parameter‐varying nature of the robot dynamics. Theoretical analyses, based on Lyapunov theory, are also conducted to verify the stability of the closed‐loop system. Comparative simulations are finally performed to show the efficiency of the proposed system in comparison with the conventional micro tubes made of smart materials and with an integer order sliding mode controller (SMC). The results demonstrate that the proposed robot properly meets the performance requirements in terms of vibration suppression and trajectory tracking, even in the presence of disturbances.

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“…The incorporation of magnetostrictive patches with passive substrate beams in lattice design can lead to extreme ondemand modulation of effective elastic properties in a contactless setup. Magnetostrictive materials, which we aim to use as an intrinsic material in the hybrid lattices, belong to the class of smart materials that show dimensional changes under the influence of a magnetic field and also depicts the converse effect of change in magnetization under the influence of externally applied stresses (Quandt and Seemann 1995, Bhattacharya and Murty 1996, Body et al 1997, Si and Cho 2004, Ghosh and Gopalakrishnan 2005, Chopra and Sirohi 2013, Sheikholeslami et al 2017, Xu and Shang 2019, Amiri et al 2020. Grima et al (2013) and Galea et al (2022) experimentally demonstrated the variation in mechanical properties by incorporating magnetic inserts/inclusions over the inclined cell walls of the lattice structure.…”

Section: Introductionmentioning

confidence: 99%

Extreme on-demand contactless modulation of elastic properties in magnetostrictive lattices

Singh

Mukhopadhyay²,

Adhikari³

et al. 2022

Smart Mater. Struct.

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2D lattices are widely popular in micro-architected metamaterial design as they are easy to manufacture and provide lightweight multifunctional properties. The mechanical properties of such lattice structures are predominantly an intrinsic geometric function of the microstructural topology, which are generally referred to as passive metamaterials since there is no possibility to alter the properties after manufacturing if the application requirement changes. A few studies have been conducted recently to show that the active modulation of elastic properties is possible in piezoelectric hybrid lattice structures, wherein the major drawback is that complicated electrical circuits are required to be physically attached to the micro-beams. This paper proposes a novel hybrid lattice structure by incorporating magnetostrictive patches that allow contactless active modulation of Young’s modulus and Poisson’s ratio as per real-time demands. We have presented closed-form expressions of the elastic properties based on a bottom-up approach considering both axial and bending deformations at the unit cell level. The generic expressions can be used for different conﬁgurations (both unimorph or bimorph) and unit cell topologies under variable vertical or horizontal magnetic ﬁeld intensity. The study reveals that extreme on-demand contactless modulation including sign reversal of Young’s modulus and Poisson’s ratio (such as auxetic behavior in a structurally non-auxetic conﬁguration, or vice-versa) is achievable by controlling the magnetic ﬁeld remotely. Orders of diﬀerence in the magnitude of Young’s modulus can be realized actively in the metamaterial, which necessarily means that the same material can behave both like a soft polymer or a stiﬀ metal depending on the functional demands. The new class of active mechanical metamaterials proposed in this article will bring about a wide variety of design and application paradigms in the ﬁeld of functional materials and structures.

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Flutter and bifurcation instability analysis of fluid-conveying micro-pipes sandwiched by magnetostrictive smart layers under thermal and magnetic field

Cited by 20 publications

References 31 publications

Terfenol-D Layer in a Functionally Graded Pipe Transporting Fluid for Free Vibration

Terfenol-D Layer in a Functionally Graded Pipe Transporting Fluid for Free Vibration

Fractional‐order sliding mode control for a novel magneto‐electro‐elastic microtube robot

Extreme on-demand contactless modulation of elastic properties in magnetostrictive lattices

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