A new method that indicates the peak stress of random vibration response

2012 ◽  
Author(s):  
Yong Yan ◽  
Peng Xie ◽  
Zhen Xu ◽  
Guang Jin
Keyword(s):  
Random Vibration ◽  
Peak Stress ◽  
Vibration Response ◽  
New Method

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.

Random Vibration Response II: Simple Examples

1971 ◽  
pp. 87-95
Author(s):  
John D. Robson ◽  
Colin J. Dodds ◽  
Donald B. Macvean ◽  
Vincent R. Paling
Keyword(s):  
Random Vibration ◽  
Vibration Response

A Quantitative Method of Tailoring Input Spectra for Random Vibration Screens

1987 ◽  
Vol 30 (5) ◽  
pp. 42-49
Author(s):  
Allen Curtis ◽  
Richard McKain
Keyword(s):  
Random Vibration ◽  
Quantitative Method ◽  
Vibration Response ◽  
Rational Method ◽  
Mechanical Equipment ◽  
Precipitation Threshold

This paper presents a rational method by which an effective random vibration screen may be developed efficiently and quantitatively. In summary, a Flaw Precipitation Threshold (FPT) was derived from measurements of vibration response at known flaw locations. Responses were measured on a variety of modern electronic and electro-mechanical equipment, manufactured by five different manufacturers, during ongoing vibration screens. A vibration screen can be tailored for a piece of equipment by performing a global vibration response survey and adjusting the input spectra so that the response falls within the FPT.

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