JMD Welcomes Massimo Callegari and Yu-Tai Lee to the Editorial Board
Call For Papers: Design Theory and Methodology
Call For Papers: Special Issue on Simulation-based Design under Uncertainty
Announcing New Annual Best Paper Award
Parameterized Design Optimization of a Magnetohydrodynamic Liquid Metal Active Cooling Concept
Darren J. Hartl, Edgar Galvan, Richard J. Malak, Jeffrey W. Baur
This work is the first demonstration of the use of a parameterized approach to design optimization on a complex engineering problem. Parameterized optimization solves a family of optimization problems as a function of exogenous parameters. When applied to a subsystem of interest, it results in general knowledge about the capabilities of the subsystem rather than a restrictive point solution. The motivation is that it often is necessary to advance the development of a subsystem independent of system-level specifics. Read more...
Effect of Social Structuring in Self-Organizing Systems
Newsha Khani, James Humann, Yan Jin
Dealing with unforeseeable changing situations, often seen in exploratory and hazardous task domains, requires engineered complex systems that can feature flexibility to fulfill multiple resolutions over long lifespans, robustness to deal with environmental changes and resilience to sustain system damage. The current top-down engineering design approach has its limitations in cases where it is impossible to fully consider and predict the true operational uncertainties because the hidden interdependencies among the system components can lead to unforeseeable interactions at operation time. Read more...
An Evaluation Methodology for Design Concept Communication Using Digital Prototypes
Soheil Arastehfar, Ying Liu, Wen Feng Lu
Digital prototype (DP), as a form of communication media, allows designers to communicate design concepts to users by rendering the physical characteristics, e.g., size, colour, and texture. One important aspect is how well users can estimate the values of the physical characteristics of design concepts through interactions with DPs. Better estimates can lead to better perceptions of the designed attributes closely associated with the physical characteristics, and hence, useful user feedback about design concepts. Read more...
A Cost-Driven Design Methodology for Additive Manufactured Variable Platforms in Product Families
Xiling Yao, Seung Ki Moon, Guijun Bi
Additive manufacturing (AM) techniques provide designers with more freedoms in creating customized products with complex shapes. When major design changes are made to a part, undesired high cost increments may be incurred due to AM process setting adjustments, and hence it is a challenge to explore AM-enabled design freedoms while controlling costs at the same time. In this research, we introduce the concept of a variable product platform and its associated AM process setting platform, based on which the design and process setting adjustments can be restricted within a bounded feasible space in order to limit cost increments. Read more...
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