점탄성층을 삽입한 3층 적층보의 진동감쇠특성에 관한 연구 = A Study on the Characteristics of Vibration Damping of a Beam with Inserted Viscoelastic Layer

다국어 초록 (Multilingual Abstract)

For a number of years it has been known that flexural vibrations in a plate can be damped by the application of a layer of damping (viscoelastic) material that is in turn constrained by a backing layer or foil. A common example is the damping tape currently used in aircraft and electronic equipment.<br/>
This paper present a quantitative analysis of the resultant damping of the sandwiched beam. As in the work of H. Oberst the damping is characterized by the loss factor ??. which the damping is the normalized imaginary part of the complex bending stiffness of damped plate.<br/>
An experimental technique known as the impulse technique is presented for measuring the vibration damping of composite materials<br/>
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목차 (Table of Contents)

• Abstract
  
• 1.서론
  
• 2.3충보의 이론적 해석
  
• 3.충격기법(Impulse Technique)과 감쇠의 측정
  
• 4.결과 및 고찰
  
• 5.결론
  
• REFERENCE