NEWS 3 July 2024

Order of frictions and stiffnesses matters for virtual play

For lumped systems consisting of different frictions and stiffnesses, there has been confusion in literature about hysteresis curves and virtual play for many decades.

Various references presented an incorrect formula to calculate the virtual play, while in other sources a correct version appeared. This Mikroniek article presents a formula that can be used to calculate the correct value of the virtual play for discretised lumped friction models. (Image courtesy of Kees Verbaan).

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