Measurement of the loss factor and the Young’s modulus in structural steel by using a laser beam reflection method

2014 ◽  
Vol 65 (7) ◽  
pp. 1024-1027 ◽  
Author(s):  
Sung Soo Jung ◽  
Yong Bong Lee ◽  
Byeong Su Jeon ◽  
Su Hyun Shin
Keyword(s):  
Laser Beam ◽  
Structural Steel ◽  
Young’S Modulus ◽  
Loss Factor ◽  
Young's Modulus ◽  
Reflection Method ◽  
Beam Reflection

Reproduction of sound from old wax phonograph cylinders using the laser-beam reflection method

1986 ◽  
Vol 25 (5) ◽  
pp. 597 ◽  
Author(s):  
Toshiaki Iwai ◽  
Toshimitsu Asakura ◽  
Tom Ifukube ◽  
Toshio Kawashima
Keyword(s):  
Laser Beam ◽  
Reflection Method ◽  
Beam Reflection

scholarly journals DYNAMIC DUROMETER MEASUREMENT OF YOUNG'S MODULUS AND LOSS FACTOR

1992 ◽  
Vol 02 (C1) ◽  
pp. C1-869-C1-872
Author(s):  
W. M. MADIGOSKY ◽  
R. B. FIORITO
Keyword(s):  
Young’S Modulus ◽  
Loss Factor ◽  
Young's Modulus

Novel dynamic model for calculating the equivalent Young's modulus and loss factor of layered beams

2020 ◽  
Vol 488 ◽  
pp. 115634
Author(s):  
Xuhao Du ◽  
Ming Jin ◽  
Andrew Guzzomi ◽  
Lingzhi Li ◽  
Jie Pan
Keyword(s):  
Young’S Modulus ◽  
Dynamic Model ◽  
Loss Factor ◽  
Young's Modulus ◽  
Layered Beams

Analytical analysis of vibration characteristics for the hard-coating cantilever laminated plate

2017 ◽  
Vol 232 (5) ◽  
pp. 813-824 ◽  
Author(s):  
Wei Sun ◽  
Xiaozhou Liu ◽  
Yue Zhang
Keyword(s):  
Young’S Modulus ◽  
Loss Factor ◽  
Young's Modulus ◽  
Vibration Reduction ◽  
Vibration Characteristics ◽  
Hard Coating ◽  
Laminated Plate ◽  
Ansys Software ◽  
Lagrange’S Equation ◽  
Natural Characteristics

For laminated plate served in high temperature and high corrosion environment, hard coating can be applied to suppress destructive vibration. While the creation of the dynamic model of hard-coating laminated plate is the premise of the research on vibration reduction. This study was focused on analyzing vibration characteristics of the hard-coating cantilever laminated plate under base excitation. Orthogonal polynomials were used as admissible displacement functions to formulate the displacement field, Lagrange’s equation was used to build the governing equations of both free vibration and forced vibration for the composite plate, and methods of solving the natural characteristics and the harmonic response were presented. A T300/QY89l1 laminated plate with NiCoCrAlY+YSZ hard coating was chosen to demonstrate the proposed method and obtained results were compared with the ones gotten by ANSYS software with the purpose of assessing the rationality of the developed analytical model. Finally, based on the established model, the influences of hard-coating parameters, including thickness, Young’s modulus, and loss factor, on the vibration characteristics of the laminated plate were studied. The results show that increasing the thickness, Young’s modulus and loss factor of hard coating are beneficial to vibration reduction of laminated plate.

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