Tolerance synthesis using bond graph inversion and fuzzy logic

In the context of mechatronic systems design, this paper addresses a parameter tolerance synthesis with respect to specifications including output epistemic uncertainties. The methodology proposed here concerns uncertainties modelled with fuzzy logic. The procedure relies on output uncertainties propagation through an inverse model. Design parameter tolerance is then synthesized. The results are validated injecting designed parameters in the direct model. The methodology is illustrated on a linear model with specifications including combined uncertainties.

I. Introduction

In the last few decades, mechatronic and its applications have dramatically changed the world. As a consequence, the problem of mechatronic system design has drawn more and more attention.