Transverse vibration analysis of concentrated mass-loaded thin circular plate based on strcutural circumferential periodicity

2015 ◽  
Vol 21 (2) ◽  
pp. 147-152
Author(s):  
Desheng Li ◽  
Junhong Zhang ◽  
Dehua Li ◽  
Fengrong Bi
Keyword(s):  
Circular Plate ◽  
Transverse Vibration ◽  
Vibration Analysis ◽  
Concentrated Mass ◽  
Thin Circular Plate

scholarly journals Mobility Matrix of a Thin Circular Plate Carrying Concentrated Masses Based on Transverse Vibration Solution

2014 ◽  
Vol 2014 ◽  
pp. 1-15
Author(s):  
Desheng Li ◽  
Junhong Zhang
Keyword(s):  
Circular Plate ◽  
Transverse Vibration ◽  
Vibration Mode ◽  
Sound Power ◽  
Vibration Source ◽  
Thin Circular Plate ◽  
Mobility Matrix ◽  
Solution Point ◽  
Concentrated Masses ◽  
Mobility Solution

When calculating the vibration or sound power of a vibration source, it is necessary to know the point mobility of the supporting structure. A new method is presented for the calculation of point mobility matrix of a thin circular plate with concentrated masses in this paper. Transverse vibration mode functions are worked out by utilizing the structural circumferential periodicity of the inertia excitation produced by the concentrated masses. The numerical vibratory results, taking the clamped case as an instance, are compared to the published ones to validate the method for ensuring the correctness of mobility solution. Point mobility matrix, including the driving and transfer point mobility, of the titled structure is computed based on the transverse vibration solution. After that, effect of the concentrated masses on the mechanical point mobility characteristics is analyzed.

Mobility power flows of thin circular plate carrying concentrated masses based on structural circumferential periodicity

2016 ◽  
Vol 230 (17) ◽  
pp. 2996-3011
Author(s):  
Jun-hong Zhang ◽  
De-sheng Li
Keyword(s):  
Circular Plate ◽  
Fundamental Frequency ◽  
Transverse Vibration ◽  
New Method ◽  
Concentrate Mass ◽  
Simply Supported ◽  
Thin Circular Plate ◽  
Parametric Effect ◽  
Analytical Results ◽  
Concentrated Masses

A new method was presented by utilizing the structural circumferential periodicity of the inertia excitation due to the concentrated masses to compute the transverse vibration for thin circular plate carrying concentrated masses. Comparison between the calculated fundamental frequency coefficients and those from other approaches validates the method. And then, the point mobility matrices and the power flows were solved on the basis of modal function solutions and the analytical results of simply supported case were presented. Finally, the parametric effect of the single concentrate mass on the power flows was investigated.

An Integral Equation Method for Free Vibration of Circular Plate with Concentrated Mass at Arbitrary Positions

2011 ◽  
Vol 255-260 ◽  
pp. 1830-1835 ◽  
Author(s):  
Gang Cheng ◽  
Quan Cheng ◽  
Wei Dong Wang
Keyword(s):  
Integral Equation ◽  
Eigenvalue Problem ◽  
Free Vibration ◽  
Green’S Function ◽  
Circular Plate ◽  
Green's Function ◽  
Integral Equation Method ◽  
Free Vibrations ◽  
Equation Method ◽  
Concentrated Mass

The paper concerns on the free vibrations of circular plate with arbitrary number of the mounted masses at arbitrary positions by using the integral equation method. A set of complete systems of orthogonal functions, which is constructed by Bessel functions of the first kind, is used to construct the Green's function of circular plates firstly. Then the eigenvalue problem of free vibration of circular plate carrying oscillators and elastic supports at arbitrary positions is transformed into the problem of integral equation by using the superposition theorem and the physical meaning of the Green’s function. And then the eigenvalue problem of integral equation is transformed into a standard eigenvalue problem of a matrix with infinite order. Numerical examples are presented.

scholarly journals Transverse Vibration of a Circular Plate on an Eccentric Annular Elastic Support

1979 ◽  
Vol 22 (167) ◽  
pp. 642-647 ◽  
Author(s):  
Kosuke NAGAYA ◽  
Yoshitaro HIRANO ◽  
Katsutoshi OKAZAKI
Keyword(s):  
Circular Plate ◽  
Transverse Vibration ◽  
Elastic Support
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