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A nonlinear mechanical oscillator for physics laboratories

 

作者: R. Dorner,   L. Kowalski,   M. Stein,  

 

期刊: American Journal of Physics  （AIP Available online 1996）
卷期: Volume 64, issue 5  

页码: 575-580

 

ISSN:0002-9505

 

年代: 1996

 

DOI:10.1119/1.18157

 

出版商: American Association of Physics Teachers

 

关键词: OSCILLATORS;LABORATORY EQUIPMENT;RESONANCE;EDUCATIONAL TOOLS;HYSTERESIS;MECHANICAL VIBRATIONS;NONLINEAR PROBLEMS;03.20;01.50.P

 

数据来源: AIP

 

摘要:

This article describes a simple nonlinear mechanical oscillator suitable for an undergraduate physics laboratory. The oscillating system is a Plexiglas blade, with nonlinearity introduced by means of contact with stretched rubber bands. Using a variable driving frequency, students can make amplitude and phase lag measurements with sufficient accuracy for quantitative work. It is possible to study classical resonance with the linear system and then, with the modified system, produce nonlinear effects such as hysteresis.

 

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