Evaluation Method of NFR Sliders Using Modal Analysis and Instrumental Variable Method

Kyung-Hwa Rim; Chae-Hun An

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Evaluation Method of NFR Sliders Using Modal Analysis and Instrumental Variable Method

机译：基于模态分析和工具变量法的NFR滑块评估方法

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摘要

Identification method using vibration signal is formulated to evaluate the dynamic characteristics of air bearings under NFR (Near Field Recording) sliders in optical disk drives. The required impulse responses and frequency response functions of NFR sliders are obtained on numerical non-linear models including rigid motion of slider and fluid motion of air bearing under the slider. System parameters are identified by modal analysis method and instrumental variable method. The identified system parameters of sliders are utilized to evaluate the dynamic characteristics of air bearings. This shows that the developed method is a good indicator in evaluating dynamic characteristics of NFR sliders.

机译：制定了使用振动信号的识别方法，以评估光盘驱动器中NFR（近场记录）滑块下空气轴承的动态特性。 NFR滑块所需的脉冲响应和频率响应函数是在数值非线性模型上获得的，其中包括滑块的刚性运动和滑块下方的空气轴承的流体运动。系统参数通过模态分析法和工具变量法进行识别。所确定的滑块系统参数用于评估空气轴承的动态特性。这表明所开发的方法是评估NFR滑块动态特性的良好指标。

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来源
《Key Engineering Materials》 |2004年第pt1期|p.895-900|共6页
作者
Kyung-Hwa Rim; Chae-Hun An;
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作者单位

Korea University of Technology and Education Gajun-ri, Byungchun-myun, Chunan-si, Chungnam, Korea, 330-708;

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原文格式 PDF
正文语种 eng
中图分类工程基础科学;
关键词
NFR; slider; modal analysis method; instrumental variable method; identification; air bearing;

机译：NFR滑块模态分析法仪器变量法识别空气轴承;

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Evaluation Method of NFR Sliders Using Modal Analysis and Instrumental Variable Method

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