VIBRATION TESTING OF BONE USING PZT EXCITATION AND LDV MEASUREMENTS

机译：使用PZT激励和LDV测量进行骨的振动测试

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Recent studies have indicated modal properties of bones canrnbe used to indicate health; however, such properties are difficultrnto measure. This paper presents a method for vibrationrntesting of bones that can be used to extract modal propertiesrnfor health monitoring. Specifically, this paper discusses analyzingrnsegments of bone in a laboratory environment as anrninitial phase to developing a health monitoring system forrncomplete bones in a clinical environment. The bone segmentsrnpresent several difficulties for testing because of theirrnsmall and lightweight size. These difficulties are circumventedrnusing recent advances in hardware. The bone segmentrnis mounted onto a PZT stack that vibrates with small amplitudernat high frequencies. The resulting vibrations are measuredrnusing non-contact sensing via a laser doppler vibrometer.rnThis setup has been used to compute modal properties ofrnbone segments at different levels of health.

机译：最近的研究表明，可以使用骨骼的模态特性来表明健康；但是，这些性质难以测量。本文提出了一种用于骨骼振动测试的方法，该方法可用于提取用于健康监测的模态特性。具体来说，本文讨论了在实验室环境中分析骨骼的各个阶段作为初始阶段，以开发用于临床环境中完整骨骼的健康监测系统的过程。骨段尺寸小，重量轻，给测试带来了许多困难。利用硬件的最新进展可以避免这些困难。装在PZT叠层上的骨节段器会在高频下以小幅度振动。所产生的振动是通过激光多普勒振动计通过非接触式传感来测量的。该设置已用于计算不同健康水平的骨节段的模态特性。

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来源
《IMAC-XXI: a conference amp; exposition on structural dynamics》|2003年|p.1-6|共6页
会议地点 Kissimmee FL(US)
作者
Joseph A. Dupuis; Barbara Garita; Rick Lind; Andrew J. Kurdila; Andrew J. Rapoff;
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Department of Mechanical and Aerospace EngineeringrnUniversity of FloridarnGainesville, FL 32611;

Department of Mechanical and Aerospace EngineeringrnUniversity of FloridarnGainesville, FL 32611;

Department of Mechanical and Aerospace EngineeringrnUniversity of FloridarnGainesville, FL 32611;

Department of Mechanical and Aerospace EngineeringrnUniversity of FloridarnGainesville, FL 32611;

Department of Mechanical and Aerospace EngineeringrnUniversity of FloridarnGainesville, FL 32611;

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原文格式 PDF
正文语种 eng
中图分类结构力学;结构力学;
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2. Measurement Methods for the d_(33) Coefficient of PZT Thin Films on Silicon Substrates: A Comparison of Double-Beam Laser Interferometer (DBI) and Single-Beam Laser Vibrometer (LDV) Techniques [J] . MAREK POKORNY, MIROSLAV SULC, ROMAIN HERDIER Ferroelectrics: Letters Section . 2007,第1期

机译：硅基板上PZT薄膜的d_（33）系数的测量方法：双光束激光干涉仪（DBI）和单光束激光振动仪（LDV）技术的比较
3. Comparison of DIC and LDV for practical vibration and modal measurements [J] . Phillip L. Reu, Daniel P. Rohe, Laura D.Jacobs Mechanical systems and signal processing . 2017,第ptaB期

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4. VIBRATION TESTING OF BONE USING PZT EXCITATION AND LDV MEASUREMENTS [C] . Joseph A. Dupuis, Barbara Garita, Rick Lind, International Modal Analysis Conference . 2004

机译：使用PZT激励和LDV测量的骨骼振动测试
5. Vibration testing by design: Excitation and sensor placement using genetic algorithms. [D] . Larson, Cinnamon Buckels. 1996

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6. High Precision Vibration-Type Densitometers Based on Pulsed Excitation Measurements [O] . Andreas Rechberger, Robert Amsüss, Stefan Rossegger, 2019

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8. Infrared Measurements of the Vibrational Excitation and De-Excitation Rates of N2 Using CO Additive [R] . Russo, A. L., Watt, W. S. 1968

机译：用CO添加剂红外测量N2的振动激发和去激发率

VIBRATION TESTING OF BONE USING PZT EXCITATION AND LDV MEASUREMENTS

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