Organizing a Design Space of Disparate Component Topologies

Kumar, Mukund; Campbell, Matthew I.

doi:10.1007/978-94-007-0510-4_25

Cited by 3 publications

(4 citation statements)

References 15 publications

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“…Dependencies are modeled by two linked approaches: matrix based or graph based. Matrix-based approaches, also known as design structured matrix (DSM), can be viewed as methods focusing on adjacency matrices of graphs (Browning, 2016; Kreimeyer and Lindemann, 2011; Kumar and Campbell, 2011; Sunnersjo, 2016). The choice of using one representation or the other depends on the computational practicability and the needs of representation (readability and compactness).…”

Section: Related Workmentioning

confidence: 99%

Change propagation prediction: A formal model for two-dimensional geometrical models of products

Masmoudi

Leclaire

Zolghadri

et al. 2017

Concurrent Engineering

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A product is redesigned by integrating structural or functional modifications to satisfy new needs or requirements. Iterations are also necessary to fine-tune product definition during the initial design process. In both cases, engineering changes are the means by which the product evolves. However, changes are propagated from component to components and from function to functions, leading to nonvalue development activities with extra costs and delays. These engineering changes may have harmful impacts on industrialization and manufacturing; they can drastically hinder efforts to ensure faster time-to-market. Research works currently seek to model, predict, analyze, and assess the impacts of engineering changes and their propagations. This article focuses on changes in a two-dimensional geometrical product model and proposes a new change prediction approach based on two steps. First, the dependencies between the parameters of structural components are identified through experiments. These dependencies are characterized qualitatively, quantitatively, and by formal equations. The changes are then propagated through the network of dependencies, and their consequences are computed. A geometric two-dimensional model of a bicycle is used to illustrate the approach. The results are discussed, and the main contributions of the approach are highlighted while further research paths are presented at the end of this article.

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Section: Related Workmentioning

confidence: 99%

Change propagation prediction: A formal model for two-dimensional geometrical models of products

Masmoudi

Leclaire

Zolghadri

et al. 2017

Concurrent Engineering

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“…A graph grammar representation however encodes much more complex forms of functioncomponent mapping by using grammar rules. Previous work on computational design synthesis for product assemblies using graph grammar representation [15] describes a two layer approach as a simplification of the Function Behavior Structure approach [16]. This uses function structure and a Component Flow Graph to represent electromechanical products such as compressors, blowers, hair dryer etc.…”

Section: Related Workmentioning

confidence: 99%

Rule Based Stochastic Tree Search

Kumar

Campbell

Königseder

et al. 2014

Design Computing and Cognition '12

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Rule Based Stochastic Tree SearchMukund Kumar, for M.S.E.The University of Texas at Austin, 2011 Supervisor: Matthew I Campbell This work presents an enhancement of a search process that is suited for a problem that can be solved using a graph grammar based generative tree. Generative grammar can be used to generate a vast number of design alternatives by using a seed graph of the problem and a set of transformation rules. The problem is to find the best solution among this space by doing the least number of evaluations possible. In a previous paper, an interactive algorithm for searching in a graph grammar representation was presented. The process was demonstrated for a problem of tying a necktie and the work here builds on top of this process to be useful for solving engineering problem. To test the search process, two problems, a photovoltaic array topology optimization problem and an electromechanical product redesign problem, are chosen. It is shown this search process converges in finding the best solution within a few hundred evaluations which is a manageable number compared to the large solution space of millions of candidates. Further optimization and tweaks are done on the process to control exploration vs. exploitation and find the parameters for fastest convergence and the best solution.v

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“…Rather than present a long list of alternatives, the set of concepts are also passed to a clustering routine in the interest of identifying similarities amongst the generated alternatives. [38,39]. These activities result in a wealth of data that may be useful to a designer, without an intuitive means of exploring the space of design alternatives.…”

Section: Underlying Architecturementioning

confidence: 99%

“…In the second, the number of dimensions used to describe the concepts is reduced by identifying the principal components before clustering. The first option, discussed in detail in [38] uses a variant K-means clustering or Lloyd's algorithm as an iterative clustering algorithm. [21,48] A second clustering option, discussed in detail in [39] uses Principal Component Analysis (PCA) to reduce the dimensionality of the problem prior to applying the clustering algorithm [49] .…”

Section: Goalsmentioning

confidence: 99%

Exploring Automatically Generated Design Concepts Using Cyberinfrastructure

Naim

English

Lewis

2010

Volume 3: 30th Computers and Information in Engineering Conference, Parts a and B

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Our society has witnessed major growth and innovation in technology. However, one of innovation’s fundamental aspects, designer creativity, is still largely unsupported by information technology (IT) tools. This paper establishes a bridge between efforts to use cyberinfrastructure to generate design alternatives and a designer’s ability to explore and evaluate concepts. The research presented provides a method of synthesizing a web-based representation of a product concept using information from a digital design repository, an automatic concept generator, and results from a clustering analysis. A visualization interface is developed to provide designers with multiple representations of product concepts. The development of this approach establishes a computing infrastructure to support an investigation into the effect of information technology on designer creativity and provides a foundation for the development of further support technology. The architecture is implemented and the result is illustrated with an example in order to show the capabilities of the approach.

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Organizing a Design Space of Disparate Component Topologies

Cited by 3 publications

References 15 publications

Change propagation prediction: A formal model for two-dimensional geometrical models of products

Change propagation prediction: A formal model for two-dimensional geometrical models of products

Rule Based Stochastic Tree Search

Exploring Automatically Generated Design Concepts Using Cyberinfrastructure

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