PIEZOELECTRIC ACTUATORS FOR BONE MECHANICAL STIMULATION: EXPLORING THE CONCEPT
نویسندگان
چکیده
منابع مشابه
Vibration Control of a Mechanical Structure with Piezoelectric Actuators - a Comparison of Bimorph and Stack Actuators
The practical results of the vibration suppression of a cantilever beam with a low voltage piezoelectric bimorph patch and a stack actuator are discussed. After the equation of motion of the controlled system is obtained by the finite element method, a modal analysis is performed to reduce the numbers of degrees of freedom. A modal linear quadratic feedback controller is realized on a real-time...
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Magnetostriction occurs in the most ferromagnetic materials and leads to many effects [1,2]. The most useful one to refer to is the Joule effect. It is responsible for the expansion (positive magnetostriction) or the contraction (negative) of a rod subjected to a longitudinal static magnetic field. In a given material, this magnetostrain is quadratic and occurs always in the same direction what...
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The piezoelectric actuator (PEA) is a well-known device for managing extremely small displacements in the range from 10 pm (1 pm = 10 12 m) to 100 m. When developing a control system for a piezo-actuated positioning mechanism, the actuator dynamics have to be taken into account. An electromechanical piezo model, based on physical principles, is presented in this paper. In this model, a first-or...
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Bone mass distribution and structure are dependent on mechanical stress and adaptive response at cellular and tissue levels. Mechanical stimulation of bone induces new bone formation in vivo and increases the metabolic activity and gene expression of osteoblasts in culture. A wide variety of devices have been tested for mechanical stimulation of cells and tissues in vitro. The aim of this work ...
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1 Department of Electronic Engineering, Faculty of Engineering, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan; E-Mails: [email protected] (A.T.); [email protected] (Y.F.) 2 Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesa 10, Bandung 40132, Indonesia; E-Mail: [email protected] 3 Shanghai Key Laboratory of...
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ژورنال
عنوان ژورنال: Journal of Biomechanics
سال: 2012
ISSN: 0021-9290
DOI: 10.1016/s0021-9290(12)70345-7