Computer-Aided Engineering and Mechatronics in the Design of Apparel Equipment

This research project combines computer-aided-engineering methods with practical control strategies to develop precise fabric handling capabilities. The primary goal is to develop mechatronic design concepts for assembly processes such as: folding, joining, placing, and locating that take into account variability in fabric material properties such as weight and stiffness. Advanced three-dimensional modeling of fabric drape and manipulation using the finite element method will be simplified for the design of fabric handling control systems. Controls that stabilize the fabric motion and allow accurate handling with minimum wrinkling will be investigated. Proof of concept demonstrations will be constructed to show techniques for systematically adjusting for material property variation. Project objectives and relevance to National Textile Center goals are discussed. The technical approach and progress to date are reviewed. I. PROJECT OBJECTIVES AND RELEVANCE TO NTC GOALS The major objective of this research project is to combine computer-aided-engineering methods with practical control strategies to develop precise fabric handling capabilities. The primary goal is to develop mechatronic design concepts for assembly processes such as: folding, joining, placing, and locating that take into account variability in fabric material properties such as weight and stiffness. Advanced three-dimensional modeling of fabric drape and manipulation using the finite element method will be simplified for the design of fabric handling control systems. Controls that stabilize the fabric motion and allow accurate handling with minimum wrinkling will be investigated. Proof of concept demonstrations will be constructed to show techniques for systematically adjusting for matefial property variation. Other potential applications for this technology in future years would include 3D fabric processes such as shape pressing and sewing. Computer-aided-engineering is prevalent in many high technology industries in the US, including automotive and aerospace. Computer simulation of manufacturing processes during the equipment design phase is an accepted procedure. This same approach must be implemented in the design of fabric handling equipment. Machinery must be enNational Textile Center Annual Report: August 1995 275