scholarly journals Dynamic response of continuous beams with discrete viscoelastic supports under sinusoidal loading

2014 ◽  
Vol 86 ◽  
pp. 76-82 ◽  
Author(s):  
Bing Li ◽  
Shaohua Wang ◽  
Xiao Wu ◽  
Bin Wang
Keyword(s):  
Dynamic Response ◽  
Continuous Beams

scholarly journals IMPROVED ANALYSIS OF A PROPPED CANTILEVER UNDER LATERAL VIBRATION

2021 ◽  
Vol 30 (4) ◽  
Author(s):  
Victor Okonkwo ◽  
Chukwurah Aginam ◽  
Charles Nwaiwu
Keyword(s):  
Dynamic Response ◽  
Dynamic Analysis ◽  
Continuous Systems ◽  
Lateral Vibration ◽  
Continuous Beam ◽  
Lumped Mass ◽  
Lagrange’S Equation ◽  
Continuous Beams ◽  
Lumped Masses ◽  
Stiffness Distribution

Continuous systems are sometimes analysed as lumped masses connected by massless elements. This reduces the structure’s degree of freedom and therefore simplifies the analysis. However this over simplification introduces an error in the analysis and the results are therefore approximate. In this work sections of the vibrating beam were isolated and the equations of the forces causing vibration obtained using the Hamilton’s principle. These forces were applied to the nodes of an equivalent lumped mass beam and the stiffness modification needed for it to behave as a continuous beam obtained. The beam’s stiffness was modified using a set of stiffness modification factors to . It was observed that by applying these factors in the dynamic analysis of the beam using the Lagrange’s equation, we obtain the exact values of the fundamental frequency irrespective of the way the mass of the beam was lumped. From this work we observed that in order to obtain an accurate dynamic response from a lumped mass beam there is need to modify the stiffness composition of the system and no linear modification of the stiffness distribution of lumped mass beams can cause them to be dynamically equivalent to the continuous beams. This is so because the values of the modification factors obtained for each beam segment were not equal. The stiffness modification factors were obtained for elements at different sections of the beam

Human pilot dynamic response in flight and simulator.

1958 ◽  
Author(s):  
Edward Seckel ◽  
Ian A. M. Hall ◽  
Duane T. McRuer ◽  
David H. Weir
Keyword(s):  
Dynamic Response

Memory effects in the dynamic response of a random two-spin Ising system

1991 ◽  
Vol 1 (1) ◽  
pp. 63-77 ◽  
Author(s):  
M. Nifle ◽  
H. J. Hilhorst
Keyword(s):  
Dynamic Response ◽  
Memory Effects ◽  
Ising System

Dynamic response of a blue phase to an applied field

1992 ◽  
Vol 2 (10) ◽  
pp. 1803-1809
Author(s):  
V. K. Dolganov ◽  
G. Heppke ◽  
H.-S. Kitzerow
Keyword(s):  
Dynamic Response ◽  
Applied Field ◽  
Blue Phase
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