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Influence of the elastomeric coating on parameters of steady state vibrations of coil springs in the resonance and outside it

Michalczyk K.

Journal of Theoretical and Applied Mechanics

2014

Vol. 52 nr 2

507--518

The computational model of steady state vibrations of the coil spring covered with an elastomeric layer under resonance conditions and outside them is presented in the paper. It enables one to assess the reduction effectiveness of dynamic stresses in function of the material and geometrical parameters of the applied coating. The considerations are supplemented with the numerical examples.

Analysis of the influence of elastomeric layer on helical spring stresses in longitudinal resonance vibration conditions

Michalczyk K.

Archives of Civil and Mechanical Engineering

2013

Vol. 13, no. 1

21--26

The analysis of elastomeric coating influence on dynamic resonant stresses values in spring is presented in this paper. The appropriate equations determining the effectiveness of dynamic stress reduction in resonant conditions as a function of coating parameters were derived. It was proved that rubber coating will not perform in satisfactory manner due to its low modulus of elasticity in shear. It was also demonstrated that about-resonance areas of increased stresses are wider and wider along with the successive resonances and achieve significant values even at large distances from the resonance frequencies.