JMD Announces Editors' Choice Paper Awards for the years: 2014, 2015, and 2016
JMD Welcomes Scott Ferguson and Samy Missoum to the Editorial Board
Mining Process Heuristics from Designer Action Data via Hidden Markov Models
Christopher McComb, Jonathan Cagan; Kenneth Kotovsky
Configuration design problems are common in everyday life as well as engineering, with examples ranging from the selection and arrangement of furniture for a living room to the type of problem-solving used by NASA engineers to return Apollo 13 safely to Earth. There are many theoretical approaches for solving configuration design problems but few studies have examined how humans naturally solve them. This work used data-mining techniques (specifically hidden Markov models) to study the behavioral patterns shown by humans solving two distinct configuration design problems. Read more...
Optimal Design of Panel Reinforcements With Ribs Made of Plates
Shanglong Zhang; Julián A. Norato
Reinforcing ribs can significantly increase the stiffness of panels. In this study, we formulate a computational design method to determine the optimal position, dimensions and orientation of ribs made of stock plates and welded to a panel to maximize its stiffness. Typical applications of welded rib reinforcements are large metallic structures with low production volumes, for which other processes such as machining or stamping are either infeasible or too costly. Read more...
Development and Evaluation of a Mechanical Stance-Controlled Orthotic Knee Joint with Stance Flexion
Jan Andrysek; Matthew J. Leineweber; Hankyu Yu
People with severe impairment of the lower body caused by conditions such as polio or stroke often rely on assistive devices for mobility. Knee orthosis plays an important role in restoring mobility by stabilizing the weakened lower limb and providing support for standing and walking. Concurrently, the orthosis should allow for natural and efficient movement of the limb as required for walking. The focus of this work is to develop a new method for controlling orthotic knee joints. Read more...
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