Browsing by Subject "nonlinear elastic properties"

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Access status: Open Access ,
Identification of a backlash using the modelling function method
(Wydawnictwa AGH, 2005) Szmidt, Artur; Gierulski, Wacław
The physical value of a backlash in a kinematic pair of a mechanical system can be determined using a number of methods; still the problem is considered to be difficult. The identification may involve employing a modelling function, which allows also finding out about other properties of a given mechanical system. A modelling function constitutes a mathematical model for the relationship between the solids-joints interaction and the relative displacement and the relative velocity of the solids. This study aims at identifying a backlash by means of one-dimensional modelling functions that do not take account of velocity. The functions depend on the parameters determined during the identification process. Their values result from the similarity of signals being a response of the analysed real system and its mathematical model (i.e. its modelling function). The method does not require selecting signals; any signal representing the actual operation of the system will be applicable. Signals are analysed over a time period. A special form of the modelling function should permit determining the values of the searched parameters, i.e. the backlash.