Interactive constraint-aided conceptual design

O’Sullivan, Barry

doi:10.1017/s0890060402164043

Cited by 34 publications

(30 citation statements)

References 31 publications

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“…Here, the several possible -means‖ or -solution principles‖ are listed by the designer for each function that the system needs to perform. This work assumes that the designer provides the necessary information although it is conceivable that the various -means‖ or -solution principles‖ are populated from a database based on the function similar to the approach in [21] and [22].…”

Section: Visual Tools Used In Early Designmentioning

confidence: 99%

Towards Enabling Visual Design Exploration Involving Multiple Abstractions of Design Descriptions

Devanathan

Ramani

2011

Volume 2: 31st Computers and Information in Engineering Conference, Parts a and B

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Designers use several visual tools for exploring and understanding design problems and solutions. House of Quality (HoQ), function-structure, Morphological matrices, concept selection tables, 2D drawings are some of the visual tools and representations used in mechanical design. In this article we attempt to connect these visual tools and their underlying models to support exploration in early design using a representation called the working knowledge model (WKM). We identify two key aspects in design that are important for establishing such connections: different abstractions are used to describe the same design element, and several alternatives are considered during exploration. The constituent elements of the visual tools such as engineering characteristics (ECs) in a HoQ are described using classes of the information model. A simple wiki-based implementation is described that allows the user to tag the wiki text with WKM classes, which is then extracted to populate a database. This information is used by visual tools that can be embedded within a wiki page; the decisions taken by the user using these visual tools are then incorporated back into the WKM database and the wiki is updated if needed. A case study of the design of an automotive flow control valve is described to demonstrate the prototype.

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Section: Visual Tools Used In Early Designmentioning

confidence: 99%

Towards Enabling Visual Design Exploration Involving Multiple Abstractions of Design Descriptions

Devanathan

Ramani

2011

Volume 2: 31st Computers and Information in Engineering Conference, Parts a and B

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show abstract

“…Let's consider the design of a bicycle [12], whose expected functionality is to provide transport. In the functional space, the provide-transport function is decomposed into child functions such as: facilitate-movement, provide-energy, support-passenger, change-direction and provide-support.…”

Section: Design Modelmentioning

confidence: 99%

“…The development of such design assistants requires a knowledge-level approach (similarly to many AI approaches developed in the past, e.g. [4,12,13]). Furthermore, the approach must focus on generating design proposals perceived as "useful" by the designer, even with incomplete knowledge-based modeling and reasoning capabilities.…”

Section: Introductionmentioning

confidence: 99%

Towards an agent-based framework for guiding design exploration

Díaz-Pace

Bass

Bachmann

et al. 2008

Proceedings of the 2008 International Workshop on Recommendation Systems for Software Engineering

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One of the premises of conceptual design is that the designer must evaluate a range of candidate solutions before selecting the final solution. Tool support is critical to aid designers in that exploration, because the design space is usually large and involves multiple constraints. A modality of assistance is that the tool criticizes the current design and provides the designer with recommendations for improving it. Traditional knowledge-based systems and optimization tools tend to be inappropriate when the designer is actively involved in the search loop, because the design proposals should match the designer's context. To address this challenge, this paper describes an agent-based framework for developing design recommendation tools that help designers to perform explorative search more effectively. The approach is exemplified with an experimental design assistant for software architecture design.

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“…Such reasoning with constraints is commonly used in the detailed design stage. Monotonicity analysis~Wilde, 1975;Papalambros & Wilde, 1979, 1988!, constraint propagation~Davis, 1987Sarma & Rinderle, 1992!, Galileo constraint programming language~Bowen & Bahler, 1992O'Sullivan, 2002!, and also methods presented in Bordeaux et al~2003! andBowen~2003! are some examples of the existing constraint reasoning techniques.…”

Section: Constraint Reasoningmentioning

confidence: 99%

Synergy and transitivity in constraint dominance methods: Demonstration with linear motor design problem

Deshpande

Rinderle

2006

AIEDAM

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Reasoning about relationships among design constraints can facilitate objective and effective decision making at various stages of engineering design. Exploiting dominance among constraints is one particularly strong approach to simplifying design problems and to focusing designers' attention on critical design issues. Three distinct approaches to constraint dominance identification have been reported in the literature. We lay down the basic principles of these approaches with simple examples, and we apply these methods to a practical linear electric actuator design problem. With the help of the design problem we demonstrate strategies to synergistically employ the dominance identification methods. Specifically, we present an approach that utilizes the transitive nature of the dominance relation. The identification of dominance provides insight into the design of linear actuators, which leads to effective decisions at the conceptual stage of the design. We show that the dominance determination methods can be synergistically employed with other constraint reasoning methods such as interval propagation methods and monotonicity analysis to achieve an optimal solution for a particular design configuration of the linear actuator. The dominance determination methods and strategies for their employment are amenable for automation and can be part of a suite of tools available to assist the designer in detailed as well as conceptual design.

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Interactive constraint-aided conceptual design

Cited by 34 publications

References 31 publications

Towards Enabling Visual Design Exploration Involving Multiple Abstractions of Design Descriptions

Towards Enabling Visual Design Exploration Involving Multiple Abstractions of Design Descriptions

Towards an agent-based framework for guiding design exploration

Synergy and transitivity in constraint dominance methods: Demonstration with linear motor design problem

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