Smart Laminated Shells and Deflection Control Strategy with Optimal Voltage

Bhattacharya, Pinaki; Suhail, H.; Sinha, P. P.

doi:10.1106/h2wr-tryc-lndf-7bm5

Cited by 8 publications

(5 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For validation, the static control problem of a simply supported smart composite spherical shell panel, analysed earlier by Bhattacharya et al (2000) is taken up. The shell has a square planform (0.9 m × 0.9 m), and is thin, having a / h = 100 .…”

Section: Numerical Resultsmentioning

confidence: 99%

“…A uniformly distributed pressure load of 10 Nm − 2 is applied on the top surface of the shell. The central deflection obtained by the present ZIGT FE is presented and compared in Table 1 with the FSDT solution of Bhattacharya et al (2000) under uniform actuation potential of ϕ 0 = 0 and ϕ 0 = 100 V applied on the actuator surface. The results compare very well with the reference results for all laminate configurations and all values of radius of curvature.…”

Section: Numerical Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Coupled efficient layerwise finite element modeling for active vibration control of smart composite and sandwich shallow shells

Kapuria

Yasin

2014

Journal of Intelligent Material Systems and Structures

View full text Add to dashboard Cite

The active vibration suppression of smart composite and sandwich shallow shells equipped with distributed monolithic piezoelectric and piezo-fiber reinforced composite (PFRC) sensors and actuators is studied using a four-node quadrilateral shallow shell element based on a fully coupled, accurate and efficient layerwise (zigzag) theory. The shell element uses the concept of electric nodes to satisfy the equipotential condition of electroded sensor surfaces without making any approximations or averaging. The effective electromechanical properties of the PFRC laminas are computed using a coupled three-dimensional iso-field micromechanical model. Both classical (constant gain velocity feedback (CGVF)) and optimal (linear quadratic Gaussian (LQG)) control strategies are studied. A truly collocated actuator–sensor arrangement is proposed and shown to remove the instability in CGVF control of shallow shells with conventionally collocated actuators and sensors. The effects of piezoelectric fiber orientation and volume fraction ratio of PFRC, and the radius of curvature and span to thickness ratio of the shell on the control performance, are studied. It is shown that the LQG control not only suppresses the transient vibration under step/impulse excitations, but also eliminates the beating phenomena under harmonic excitation when the forcing frequency is close to the natural frequency of the system.

show abstract

Section: Numerical Resultsmentioning

confidence: 99%

Section: Numerical Resultsmentioning

confidence: 99%

Coupled efficient layerwise finite element modeling for active vibration control of smart composite and sandwich shallow shells

Kapuria

Yasin

2014

Journal of Intelligent Material Systems and Structures

View full text Add to dashboard Cite

show abstract

“…Pinto Correia et al [265] conducted an analysis of adaptive shell structures using a refined laminated model. Bhattacharya et al [266] investigated smart laminated shells and deflection control strategy. Xue [267] studied effective dielectric constant of composite shells.…”

Section: Piezoelectric Shellsmentioning

confidence: 99%

Review of Recent Literature on Static Analyses of Composite Shells: 2000-2010

Qatu¹,

Asadi²,

Wang³

2012

OJCM

View full text Add to dashboard Cite

Laminated composite shells are frequently used in various engineering applications including aerospace, mechanical, marine, and automotive engineering. This article reviews the recent literature on the static analysis of composite shells. It follows up with the previous work published by the first author [1-4] and it is a continuation of another recent article that focused on the dynamics of composite shells [3]. This paper reviews most of the research done in recent years (2000-2010) on the static and buckling behavior (including postbuckling) of composite shells. This review is conducted with an emphasis on the analysis performed (static, buckling, postbuckling, and others), complicating effects in both material (e.g. piezoelectric) and structure (e.g. stiffened shells), and the various shell geometries (cylindrical, conical, spherical and others). Attention is also given to the theory being applied (thin, thick, 3D, nonlinear …). However, more details regarding the theories have been described in previous work [1,3]

show abstract

“…Bhattcharya et al [15] considered the finite element analysis of smart composite shells based on Reissner's principle. Results were presented for laminated composite shell panels.…”

Section: Introductionmentioning

confidence: 99%

Static behaviour of a laminated composite spherical shell cap with piezoelectric actuators

Ram¹,

Kiran²

2008

Smart Mater. Struct.

View full text Add to dashboard Cite

The behaviour of a laminated composite spherical shell cap with piezoelectric layers subjected to external static load and electrical potential is investigated using the finite element method based on first-order shear deformation theory. An eight-node degenerated isoparametric shell element with five degrees of freedom at each node is considered. The control of deflection and stresses in a laminated composite spherical shell cap with piezoelectric actuators subjected to external load and electrical potential is investigated. Results are presented for the control of deflection and stresses of simply supported and clamped laminated composite spherical shell caps with piezoelectric actuators subjected to uniform normal pressure by applying an electrical potential.

show abstract

Smart Laminated Shells and Deflection Control Strategy with Optimal Voltage

Cited by 8 publications

References 16 publications

Coupled efficient layerwise finite element modeling for active vibration control of smart composite and sandwich shallow shells

Coupled efficient layerwise finite element modeling for active vibration control of smart composite and sandwich shallow shells

Review of Recent Literature on Static Analyses of Composite Shells: 2000-2010

Static behaviour of a laminated composite spherical shell cap with piezoelectric actuators

Contact Info

Product

Resources

About