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AUTHOR(S): Ugo Tornar
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ABSTRACT The theory of SID ( Strain Integral Damping) is thoroughly explained in references [1] through [6]. Reference [1] has been included because of the very important concept that forces cannot be functions of accelerations. The present paper deals with the critical case of strongly non linear elastic elements (elastomers) with heavy static load. The ability of SID to simulate hysteresis cycles that are practically independent from the frequency (as Natural Hysteretic Damping is found to be in nature), is confirmed by two examples at 30 and 70 Hz and a SCILAB script (in appendix) is provided to the user to perform the calculations and better understand what is done. Instructions about how to set the important “ω1” parameter are also given to the user as well as cautions about how to set the zero of the displacements used for strain integral calculation. |
KEYWORDS vibration; damping; secant stiffness; static load; SID; convergence; bushings; hysteresis; cycles; |
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Cite this paper Ugo Tornar. (2025) SID (Strain Integral Damping) Static Load Effects. International Journal of Transportation Systems, 10, 1-5 |
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