Analysis of Dynamic Characteristics of the Magnetostrictive Power Ultrasonic Transducer

被引：3
|
作者：
Zeng, Geng Xin [1 ]
Cao, Biao [1 ]
Zeng, Hai Quan [2 ]
机构：
[1] South China Univ Technol, Sch Mech & Automot Engn, Guangzhou 510640, Guangdong, Peoples R China
[2] Xiamen Univ Technol, Dept Mech Engn, Xiamen 361024, Peoples R China
来源：
VIBRATION, STRUCTURAL ENGINEERING AND MEASUREMENT I, PTS 1-3 | 2012年 / 105-107卷
基金：
中国国家自然科学基金;
关键词：
Magnetostrictive; Ultrasonic transducer; Terfenol-D; Dynamic characteristics;
D O I：
10.4028/www.scientific.net/AMM.105-107.1693
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The giant magnetostrictive material (GMM) is a novel smart material based on magnetostrictive effect, and it is well suited to power ultrasonic transducer. Based on electromagnetic theory and vibration theory, the design and working principle of the magnetostrictive power ultrasonic transducer has been explained. This paper analyzed the dynamic characteristics of giant magnetostrictive materials under the outside magnetic field and deduced the wave equation of Terfenol-D rod, and the steady-state solution to the equation was obtained under given excitation. The speed and acceleration expressions of Terfenol-D were deduced by differentiating with respect to displacement equation. Based on developing mathematical models, computer imitation was made, and the result of modulation was analyzed from external conditions of transducer and inner structure of magnetostrictive material.
引用
收藏
页码：1693 / +
页数：2
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