نتایج جستجو برای: magnetostrictive materials

تعداد نتایج: 437098  

Journal: :J. Comput. Meth. in Science and Engineering 2006
Sultan Aljahdali Syed J. Hyder

Constitutive equations of magnetostrictive smart materials involving mechanical and magnetic fields are presented via Hamilton’s principle. Finite element equations are used to solve the equations of motion subjected to different force inputs. Magnetostrictive (CoFe2O4) layers mounted on the root of cantilever beam is considered as the case study to obtain the displacement and magnetic response...

2006
James M. Nealis Ralph C. Smith

Applications utilizing smart materials are rapidly increasing and include high speed milling and hybrid motor design. Such application utilize magnetostrictive transducers operating in hysteretic and nonlinear regimes. To achieve the high performance capabilities of these transducers, models and control laws must accommodate the nonlinear dynamics in a manner which is robust and facilitates rea...

2014
Yiwei Liu Baomin Wang Qingfeng Zhan Zhenhua Tang Huali Yang Gang Liu Zhenghu Zuo Xiaoshan Zhang Yali Xie Xiaojian Zhu Bin Chen Junling Wang Run-Wei Li

The magnetic anisotropy is decreased with increasing temperature in normal magnetic materials, which is harmful to the thermal stability of magnetic devices. Here, we report the realization of positive temperature coefficient of magnetic anisotropy in a novel composite combining β-phase polyvinylidene fluoride (PVDF) with magnetostrictive materials (magnetostrictive film/PVDF bilayer structure)...

1999
Garnett C. Horner Leslie Bromberg J. P. Teter

Cryogenic magnetostrictive materials, such as rare earth zinc crystals, offer high strains and high forces with minimally applied magnetic fields, making the material ideally suited for deformable optics applications. For cryogenic temperature applications, such as Next Generation Space Telescope (NGST), the use of superconducting magnets offer the possibility of a persistent mode of operation,...

Journal: :Journal of Mathematical Analysis and Applications 1995

Journal: :Journal of the Japan Society of Powder and Powder Metallurgy 2000

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