Title: A Mathematical Approach to Manufacturing Process and Systems Modeling Using Geometric Programming
Authors: Scott T. Nill, Larissa F. Nietner, and Alexander M. Rubin
Abstract: Recent advances in composite materials and manufacturing processes for commercial aircraft have brought disruptive change to the industry. It has been challenging to quantify the business impacts of coupled changes in vehicle performance and production processes of new composites systems. We present an approach to integrate nonlinear models for manufacturing processes, production systems, and design using Geometric Programming. The models capture the interconnections between manufacturing processes, production systems, and supply chain, and financial performance in a single mathematical framework. Trade-offs across disparate disciplines are easily quantified. Sensitivities are obtained without requiring simulations. Parameter uncertainties are propagated to understand risks to performance, making this approach particularly suited to composite manufacturing. In a case study, we show how major contributors to manufacturing cost are estimated with minimal design data. We present an example trade study for different composite technologies in manufacturing fuselage sections, showing how different manufacturing processes affect production system design and part costs. Sensitivities are used to show the major cost-drivers from design inputs.
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Conference: SAMPE 2019 - Charlotte, NC
Publication Date: 2019/05/20
Price: FREEGet This Paper