Optimization of thermal buckling control for composite laminates with PFRC actuators using trigonometric shear deformation theory

An active vibration control method of the piezoelectric composite laminated plate under the external disturbance is studied. Firstly, the dynamic model of the piezoelectric composite laminated plate is derived based on the classical laminated plate theory and the Hamilton's principle. And subsequently, a sliding mode observer is developed for the external disturbance, and the stability of the observer is verified by the Lyapunov equation, and also the LQR controller is designed based on the observed state. The particle swarm algorithm is adapted to optimize the weighting matrix. In the end, the impacts of the geometric parameters and the stacking sequences on the dynamic behavior of the piezoelectric composite material plate is analyzed. Results indicate that the sliding mode observer can accurately track the original state, and the vibration of the piezoelectric composite material plate can be suppressed effectively by the LQR control based on the particle swarm

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A novel approach for buckling optimization of stiffened piezolaminated composite plates

Goodarzimehr,

Topal,

Bohlooly Fotovat

2024

Journal of Composite Materials

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This study presents a novel approach for optimizing the critical buckling load of the stiffened piezolaminated composite plates using a self-adaptive special relativity search (SASRS) algorithm. The fiber orientations in the layers are considered as design variables. The stability equations are first derived based on the classical laminated plate theory (CLPT) with von Karman nonlinearity. The optimization problem is implemented in MATLAB. The optimization results are obtained to indicate the effecs of various boundary conditions, applied voltages, grid shapes, angles of diagonal ribs, and plate aspect ratios on the optimal design. Numerical investigations are carried out for 10-ply symmetrical stiffened piezolaminated plates. The robustness and efficiency of the proposed SASRS algorithm in maximizing the critical buckling load of the stiffened piezolaminated plates are demonstrated by comparing the optimized results from the standard special relativity search (SRS) algorithm. It is found that the proposed optimization method has better performance than the SRS algorithm.

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Optimization of thermal buckling control for composite laminates with PFRC actuators using trigonometric shear deformation theory

Cited by 3 publications

References 37 publications

The thermal-mechanical buckling and postbuckling design of composite laminated plate using a ROM-driven optimization method

The thermal-mechanical buckling and postbuckling design of composite laminated plate using a ROM-driven optimization method

Active vibration control of a piezoelectric composite laminate

A novel approach for buckling optimization of stiffened piezolaminated composite plates

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