scholarly journals Steady-state vibration of a viscoelastic cylinder cover subjected to moving loads

2016 ◽  
Vol 58 ◽  
pp. 202-210 ◽  
Author(s):  
Anssi T. Karttunen ◽  
Raimo von Hertzen
Keyword(s):  
Steady State ◽  
Viscoelastic Cylinder ◽  
Moving Loads

The steady-state response of a Maxwell viscoelastic cylinder to sinusoidal oscillation of its boundary

2007 ◽  
Vol 464 (2089) ◽  
pp. 207-221 ◽  
Author(s):  
Panagiotis G Massouros ◽  
Guy M Genin
Keyword(s):  
Steady State ◽  
Mechanical Response ◽  
External Loading ◽  
Loading Frequency ◽  
Peak Strain ◽  
Steady State Response ◽  
Viscoelastic Cylinder ◽  
Sinusoidal Oscillation ◽  
State Response ◽  
Angular Vibration

The steady-state response of a Maxwell viscoelastic cylinder to periodic sinusoidal oscillation of its boundary was studied as a simplified model of the brain responding to low-amplitude angular vibration of an idealized skull. The objectives were to identify conditions in which peak strain occurred on the interior of the cylinder, and to identify ways to scale strains from differently sized cylinders. This latter objective is motivated by the work of Holbourn to inform scaling of intracranial strains experienced under similar acceleration of skulls of different animals. The mechanical response was dictated by two dimensionless parameters that incorporate material properties and external loading frequency. The location and magnitude of maximum strain were examined with respect to these governing parameters in steady state. A frequency-dependent mapping of brain constitutive data to idealized Maxwell models was applied to predict the location and magnitude of peak strains inside a cylinder with mechanical properties representing the adult human brain. Results suggest that peak strains occur on the interior of such a cylinder for skull oscillation within a specific frequency band.

Response of Cylindrical Sandwich Shells to Moving Loads

1967 ◽  
Vol 34 (1) ◽  
pp. 81-86 ◽  
Author(s):  
G. Herrmann ◽  
E. H. Baker
Keyword(s):  
Steady State ◽  
Dynamic Response ◽  
Initial Stress ◽  
Axial Stress ◽  
Steady State Response ◽  
Sandwich Shell ◽  
Moving Loads ◽  
Axially Symmetric ◽  
Cylindrical Sandwich Shell ◽  
State Response

This paper presents an analysis into the dynamic response of a long cylindrical sandwich shell under a moving axially symmetric ring load. The shell is assumed to be orthotropic and subjected to an initial axial stress. The uniform velocity of the load is prescribed and only the steady-state response is considered. Numerical results indicate the effects of various relevant parameters. The behavior of orthotropic sandwich cylinders under initial stress is compared with that of homogeneous isotropic cylindrical shells free of initial stress, and differences are pointed out.

Effect of gravity on steady-state response to moving loads

1973 ◽  
Vol 111 (1) ◽  
pp. 2241-2248
Author(s):  
S. N. De ◽  
P. R. Sen-Gupta
Keyword(s):  
Steady State ◽  
Steady State Response ◽  
Moving Loads ◽  
State Response

On the Approach to Steady State for Frictional Contact Under Moving Loads

1983 ◽  
Vol 50 (4a) ◽  
pp. 783-788 ◽  
Author(s):  
J. Dundurs ◽  
A. K. Gautesen
Keyword(s):  
Steady State ◽  
Integral Equations ◽  
Frictional Contact ◽  
Moving Loads ◽  
Contact Interface ◽  
Normal Forces ◽  
Approach To Steady State

There is a class of problems involving frictional contact for which a steady state of slip is possible under moving loads as, for instance, when a tire is press-fitted on a wheel, and loaded by forces that travel along its circumference and induce localized slip between the tire and the wheel. The steady state slip has been investigated before, but no estimates showing how quickly the steady state is approached are available. The present paper considers for this purpose a problem that can largely be reduced analytically. It involves two half spaces that are pressed together and sheared. The contact interface is locally pried apart by concentrated normal tractions which, after application, start to move. The moving normal forces induce localized separation and slip zones that travel along the interface. The analysis based on integral equations shows that the approach to steady state is relatively slow.

Sign in / Sign up

Export Citation Format

Share Document