Active aeroelastic flutter analysis and vibration control of supersonic composite laminated plate

Computation of aerothermoelastic properties and active flutter control of CNT reinforced functionally graded composite panels in supersonic airflow

Control of geometrically nonlinear vibrations of functionally graded magneto-electro-elastic plates

This paper presents a first known study of the optimal shape control of carbon nanotube (CNT) reinforced functionally graded composite plates. Piezoelectric patches are bonded to the top and bottom surfaces to act as actuators and sensors. The genetic algorithm (GA) is used to search the optimal actuator voltages and displacement feedback control gains for the shape control of the CNT reinforced functionally graded composite plates. Three types of CNT distributions are researched in this investigation. A higher-order shear deformation theory is applied to evaluate the displacement fields of the plate. The governing equation of the structural system is formulated with the use of Hamilton's principle and the assumed mode method. The effects of shape control on CNT reinforced functionally graded composite plates, by optimizing the voltage distribution for the open-loop control and the displacement feedback control gain for the closed-loop control, are presented. The effects of CNT distributions and plate aspect ratios on optimal shape control results are also investigated.

Optimal shape control of CNT reinforced functionally graded composite plates using piezoelectric patches

Flutter and thermal buckling control for composite laminated panels in supersonic flow

This paper deals with the analysis of vertically reinforced 1–3 piezoelectric composite materials as the material used for the distributed actuator of smart structures A micromechanics model has been derived to predict the effective elastic and piezoelectric coefficients of these piezoelectric composites which are useful for the analysis of smart beams In order to investigate the performance of a layer of this 1–3 piezoelectric composite material as the distributed actuator of smart structures, active constrained layer damping (ACLD) of smart laminated composite beams has been studied The constraining layer in the ACLD treatment has been considered to be made of this piezoelectric composite A finite element model has been developed to study the dynamics of the overall beam/ACLD system Both in-plane and out-of-plane actuations of the constraining layer of the ACLD treatment have been utilized for deriving the finite element model It has been found that these vertically reinforced 1–3 piezoelectric composite materials which are in general being used as distributed sensors can be potentially used as distributed actuators of smart structures

https://iopscience.iop.org/article/10.1088/0964-1726/15/2/047/pdf

A K Pradhan

Papers

The performance of vertically reinforced 1 3 piezoelectric composites in active damping of smart structures