نتایج جستجو برای: piezoelectric plate

تعداد نتایج: 86766  

In the present work, thermo-electro vibration of the piezoelectric nanoplates resting on the elastic foundations using nonlocal elasticity theory are considered. In-plane and transverse displacements of the nanoplate have been approximated by six different modified shear deformation plate theories considering transverse shear deformation effects and rotary inertia. Moreover, two new distributio...

A. Arora A. K. Dubey R. Agarwal R. Sharma

Capacitive Micro-machined Ultrasonic Transducers (CMUTs) are the ultrasonic devices which produce better features in contrast to piezoelectric transducers. The intrinsic parameter of CMUT varies with the variation in geometrical dimension of the device. The cavity height and the radius of the CMUT with circular membrane is varied in the lumped parallel plate model for its impact on the paramete...

In this article fluid-structure interaction of vibrating composite piezoelectric plates is investigated. Since the plate is assumed to be moderately thick, rotary inertia effects and transverse shear deformation effects are deliberated by applying exponential shear deformation theory. Fluid velocity potential is acquired using the Laplace equation, and fluid boundary conditions and wet dynamic ...

A. Bagheri J. Javadi Moghaddam

In this paper a mesh-free model of the functionally graded material (FGM) plate is presented.  The piezoelectric material as a sensor and actuator has been distributed on the top and bottom of the plate, respectively. The formulation of the problem is based on the classical laminated plate theory (CLPT) and the principle of virtual displacements. Moreover, the Particle Swarm optimization (PSO) ...

Journal: :Smart Materials and Structures 2022

Abstract A one-dimensional piezoelectric phononic crystal (PPC) consisting of a periodic pattern made two perfectly bonded materials: one active (piezoelectric), the other passive (elastic) and exhibiting strong acoustic impedance contrast is studied. We are interested in tunability inclusions order to control propagation ultrasonic waves MHz range from nonlinear electrical component connected ...

Journal: :Journal of Intelligent Material Systems and Structures 2009

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی مکانیک 1387

امروزه استفاده از سازه های هوشمند موردی توجه بسیاری قرار دارد. از ویژگی های سازه های هوشمند امکان دریافت لحظه ای اطلاعاتی دربارها وضعیت سازه و قابلیت کنترل آنها از رهگذر این اطلاعات است. حسگرها وسایل دریافت اطلاعات و عملگرها وسایل اعمال کنترل هستند. از بین انواع حسگرها و عملگرها مواد پیزوالکتریک در این میان نقش مهمی دارند. از سوی دیگر نیاز های جدید بشر در حوزه های مختلف به ویژه در ابتدا در حوزه...

Journal: :International Journal of Aeronautical and Space Sciences 2006

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