A Study on the Evaluation of the Loss Factor and Young′s Modulus of Damping Materials on Temperature Condition

2층형 제진 강판을 이용한 오도 조건에 따른 제진재의 손실계수 및 탄성계수 측정

  • 이장명 (울산대학교 공과대학 기계.자동차공학부) ;
  • 이준 (울산대학교 대학원 기계.자동차공학부)
  • Published : 2001.12.01

Abstract

The characteristic values of damping materials are variant on frequency and temperature. We measure the characteristic values(loss factor, young\\\\`s modulus) of damping materials in vibration test. We can not measure characteristic values of damping materials by themselves. So, we proposed a method, sticking damping material to thin steel beam and measuring of characteristic values of damping material on frequency and temperature. We didn\\\\`t use constraining layer but we measured characteristic values on conditioning temperature.

Keywords

References

  1. VIBRATIONDAMPING Nashif,A.D
  2. Acustica :Akustische Beihefte v.2 Uber die Damping der Bigeschwingungen Dunner Bleche,Durch Fest Haftende Blelage Oberst.H
  3. Journal of the Acoustic Society of America v.31 no.7 Damping of Flexural Waves by a Constrained Viscoelastic Layer Kerwin,Edward M.Jr
  4. Structural Damping Damping of Plate Flexural Vibrations by Means of Viscoelastic Laminate Ross.D;Ungar,E.E;Kerwin,E.M;J.E.Ruzicka(ed)
  5. Proc.3rd Intl.Congr.on Acoustics A Comparison of the Effectiveness of Homgeneous Layer and Damping Flexural Wave in Plate Ross,D;Kerwin,E.M
  6. Formulas for Natural Frequency and Mode Shape Robert D;Blevins Ph.D
  7. Journal of the Acoustical Society of America v.34 no.8 Loss Factor of Viscoelastic Damped Beam Structures Unger,E.E
  8. Journal of Applied Mechnics Vol.32.Trans.ASME.Series E v.88 no.4 Theory of Vibratory Bending for Elastic and Viscoelastic Layered Finite Length Beams Ditaranto,R.A
  9. Journal of Sound and Vibration v.10 no.2 The Forced Vibration of a Three-Layer Damped Sandwich Beam with Arbitrary Boundary Conditions Mead,D.J;Markus,S
  10. Standard Method for Measuring Vibration Damping Properties of Materials ASTM
  11. Vibration Testing:Theory and Practice Kenneth,G.McConnell
  12. Random Data:Analysis and Measurement Procedures Julius S.Bendat;Allan G.Piersol