Surface effects on the nonlinear forced vibration response of third-order shear deformable nanobeams

2014 ◽  
Vol 118 ◽  
pp. 149-158 ◽  
Author(s):  
S. Sahmani ◽  
M. Bahrami ◽  
M.M. Aghdam ◽  
R. Ansari
Keyword(s):  
Forced Vibration ◽  
Surface Effects ◽  
Vibration Response ◽  
Third Order ◽  
Nonlinear Forced Vibration ◽  
Shear Deformable

Reduction of Forced Vibration Response by Optimum Balance of Linkage and Optimum Design of System

1997 ◽  
Author(s):  
She-min Zhang ◽  
Nobuyoshi Morita ◽  
Takao Torii
Keyword(s):  
Objective Function ◽  
Root Mean Square ◽  
Forced Vibration ◽  
Vibration Response ◽  
New Method ◽  
Mean Square ◽  
Design Variables ◽  
Calculation Results ◽  
Angular Velocities ◽  
Optimum Balance

Abstract This paper proposes a new method to reduce the forced vibration response of frame of linkage. It is that the root-mean-square (RMS) value of binary maximum (Bmax) of forced vibration response at a series of angular velocities is taken as the objective function, and the counterweight mass parameters of links and the stiffness factors are used as design variables. Then, it is found out that the responses are related not only to the Bmax value of shaking forces, but also to the shape of curve of shaking forces. The calculation results are compared with those of two other methods used in the reduction of forced vibration response by optimized balance of linkages, and it is shown that the new method can significantly reduce the responses of frame of linkage.

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