Evan Shellshear

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Many industry leaders have recognized the need to reinvent the way factories operate. This has led to the Industrie 4.0 and Industrial Internet initiatives, which advocate the use of cyber-physical systems to provide customers with personalized products. The authors present a data-driven approach based on the idea of a digital factory--that is, a virtual(More)
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Collision free path planning is a key technology for assembly analysis, robot line optimization, and virtual assessment of industrial maintenance and service. The ability to compute collision free paths relies on the ability to quickly and robustly query the proximity of the planning object to its surroundings. Path planning with triangulated models is a(More)
—Detecting self-collision for cables and similar objects is an important part of numerous models in computational biology (protein chains), robotics (electric cables), hair modeling, computer graphics, etc. In this paper the 1D sweep-and-prune algorithm for detecting self-collisions of a deforming cable comprising linear segments is investigated. The(More)
A new multi-threaded memetic algorithm (genetic algorithm with local optimizations) for the ISO 3832 luggage packing standard is presented. Apart from producing high-quality results, the algorithm also exploits the highly parallel computer architectures that are becoming more common as well as packing more boxes than other state-of-the-art algorithms. We(More)
In this article we present a heuristic algorithm to compute the largest volume of an object in three dimensions that can move collision-free from a start configuration to a goal configuration through a virtual environment. The results presented here provide industrial designers with a framework to reduce the number of design iterations when designing parts(More)