scholarly journals On the Forced Vibration Characteristics of a Elastically Supported Mechanical System with a Shaft

1956 ◽  
Vol 22 (115) ◽  
pp. 187-193
Author(s):  
Atsushi KIUCHI
Keyword(s):  
Mechanical System ◽  
Forced Vibration ◽  
Vibration Characteristics ◽  
Elastically Supported

Impact of a Mass on a Damped Elastically Supported Beam

1948 ◽  
Vol 15 (2) ◽  
pp. 125-136
Author(s):  
W. H. Hoppmann
Keyword(s):  
Differential Equation ◽  
Elastic Foundation ◽  
Forced Vibration ◽  
Numerical Solutions ◽  
Coefficient Of Restitution ◽  
Tabular Form ◽  
Single Degree Of Freedom ◽  
Simply Supported ◽  
Single Degree ◽  
Elastically Supported

Abstract In this paper a study is made of the problem of the central impact of a mass on a simply supported beam on an elastic foundation with considerations of internal and external damping. The differential equation for the forced vibration of the beam is developed. It is solved for the case in which the force is a function of time and is concentrated at the center of the beam. Formulas are obtained for the deflections. An expression is developed for the coefficient of restitution which is essential in determining the deflections and the strains. Criteria are devised for determining the cases in which the beam may be considered as a single-degree-of-freedom system when damping and an elastic foundation are considered. The importance of these criteria is discussed. A numerical example illustrating the theory developed in the paper is worked out in detail. Results of computations for several numerical solutions are given in tabular form.

Effect of Porosity on free and forced vibration characteristics of the GPL reinforcement composite nanostructures

2019 ◽  
Vol 77 (10) ◽  
pp. 2608-2626 ◽  
Author(s):  
Amin Pourjabari ◽  
Zanyar Esmailpoor Hajilak ◽  
Alireza Mohammadi ◽  
Mostafa Habibi ◽  
Hamed Safarpour
Keyword(s):  
Forced Vibration ◽  
Vibration Characteristics ◽  
Composite Nanostructures

Forced Motions of Composite Conoidal Shell Roofs with Complicated Boundary Conditions

2010 ◽  
Vol 123-125 ◽  
pp. 89-92
Author(s):  
Kaustav Bakshi ◽  
Hari Sadhan Das ◽  
Dipankar Chakravorty
Keyword(s):  
Finite Element ◽  
Boundary Conditions ◽  
Forced Vibration ◽  
Vibration Characteristics ◽  
Finite Element Code ◽  
Isoparametric Finite Element

An eight noded isoparametric finite element code is applied to study static bending, free and forced vibration characteristics of composite conoidal shell roofs with complicated boundary conditions which are often encountered in the industry.

Study on Vibration Transmission, with Application to the Calibration of a Measuring Stand

2013 ◽  
Vol 430 ◽  
pp. 153-157
Author(s):  
Andrei Craifaleanu ◽  
Cristian Dragomirescu ◽  
Nicolaie Orăşanu ◽  
Adrian Costache
Keyword(s):  
Mechanical System ◽  
Experimental Model ◽  
Forced Vibration ◽  
Mechanical Characteristics ◽  
Final Part ◽  
Practical Application ◽  
Vibration Transmission ◽  
Vibration Measuring ◽  
Theoretical Results

The paper studies the vibration transmitted by a mechanical oscillating system to its fixing device. The influence of the mechanical characteristics (inertial and elastic) of the device on the quantities specific to the free and forced vibration, respectively, of the principal system, is analyzed. In this context, the paper investigates the possibility to correlate the vibrations of the mechanical system with the vibrations measured on the fixing device. The conclusions of this study can be used for the calibration of vibration measuring stands. In the final part, a practical application is presented, aimed to compare the theoretical results with the data obtained by measurements performed on an experimental model built by the authors.

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