Experimental evidence shows that the tightness of a bolt can be estimated from its vibrational response using a pre-stressed beam model with linear stiffness at its boundaries. We show how considering only linear boundary stiffness successfully reproduce the experimental results. A model of multiple nonlinear springs, modelling the asperities, is presented and it is shown that as the number of asperities increases the system’s response becomes linear-like.
|Number of pages||2|
|Publication status||Published - 2019|
|Event||1st International Nonlinear Dynamics Conference - Rome, Italy|
Duration: 17 Feb 2019 → 20 Feb 2019
|Conference||1st International Nonlinear Dynamics Conference|
|Period||17/02/2019 → 20/02/2019|
Sah, S. M., Thomsen, J. J., & Fidlin, A. (2019). Estimating bolt tightness from measured vibrations: Effective linearity of nonlinear boundary stiffness. Abstract from 1st International Nonlinear Dynamics Conference, Rome, Italy.