Fuzzy Control of Membrane Wrinkling

ABSTRACTThe impact of this work is reflected in combining two different areas of research, one of which deals with intelligent control strategies, while the other focuses on the mechanics of highly flexible structures, such as membranes. True membranes are “no-compression” structures which exhibit the unique response of wrinkling. Accurate measurement of membrane wrinkling has heretofore not been presented in the literature; among other requirements, noncontact methods must be used. First, some background information on membrane wrinkling prediction and measurement is given. Then, an experimental apparatus is discussed within which a membrane was subject to planar deformations. Finally a control strategy, based on a fuzzy PD controller, is discussed in detail together with experimental results.