A Review of the Design Intent Concept in the Context of CAD Model Quality Metrics

Otey, Jeffrey; Contero, Manuel; Camba, Jorge D.

doi:10.18260/1-2--19992

Cited by 6 publications

(5 citation statements)

References 21 publications

(29 reference statements)

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“…Model quality in CAD is a multidimensional construct (Contero et al, 2002). In the context of our paper, Proceedings of the 8 th North American International Conference on Industrial Engineering and Operations Management, Houston, Texas, USA, June 13-16, 2023 © IEOM Society International we focus specifically on parametric quality and reusability (Otey et al, 2014). If the template model does not have a sufficient level of quality, design alternatives may not be created successfully due to regeneration errors Aranburu et al, 2022).…”

Section: A Methods To Automate the Prototyping Processmentioning

confidence: 99%

Conceptual Product Development through Parametric Optimization: A Case Study on the Design of an Ophthalmic Instrument

Bartlett,

Young,

Camba

2023

Proceedings of the International Conference on Industrial Engineering and Operations Management

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In this paper, we describe a conceptual product design approach based on variational 3D models, parametric optimization, and rapid prototyping for facilitating the exploration of the solution space for a design problem. We demonstrate the proposed strategy through a case study on the design of an ophthalmic instrument. A template 3D model was manually created and fed to a parametric optimization tool to automatically generate design alternatives based on a set of criteria, which were then exported for 3D printing and testing in both dry and wet lab environments. Our results show that the method facilitates parallel prototyping and enables the exploration of a wider range of solutions more quickly and efficiently, particularly in highly constrained scenarios, but it requires designers to think of the initial models as families of solutions.

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Section: A Methods To Automate the Prototyping Processmentioning

confidence: 99%

Conceptual Product Development through Parametric Optimization: A Case Study on the Design of an Ophthalmic Instrument

Bartlett,

Young,

Camba

2023

Proceedings of the International Conference on Industrial Engineering and Operations Management

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“…-For Otey et al (2014Otey et al ( , 2018, DI is a term that is commonly defined as the expected behavior of a CAD model after undergoing a modification.…”

Section: Related Workmentioning

confidence: 99%

“…At present, CAD methodology is principally based on: parametric design, feature modeling, the use of the tree and the parent-child relations of feature dependence. According to Otey et al (2014), there is a consensus that modeling tools and strategies greatly influence DI.…”

Section: Introductionmentioning

confidence: 99%

The importance of adaptive expertise in CAD learning: maintaining design intent

Barbero

Pedrosa

Pena

2018

Journal of Engineering Design

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In CAD modeling, there is no one general standardized teaching-learning methodology. We use the strategic-learning methodology, maintaining design intent, fully aware that it is necessary to modify CAD models for their reuse. Questions concerning the thought processes of students when modeling with CAD and the strategies that they choose that best maintain design intent arise in the course of using the 3D modeling programs. Our aim here is to determine the importance of adaptive expertise in the results of CAD models and, particularly, in one of its constructs: design intent. To do so, CAD-based experimentation took place over two years with 78 third-year students in the first year and with 53 third-year students in the second year from the subject module of Graphic Engineering, on the Degree in Mechanical Engineering of the University of Burgos. At the start of the year, the students conducted a survey to measure adaptive expertise. Subsequently, in the first year of experimentation, the students prepared various CAD models and the design intent was evaluated in one of them (a connecting rod or conrod), broken down into the skeleton, the structure, the modifications and the constraints. In the conrod exercise, the students also completed a questionnaire both before and after designing their models, which were analyzed to detect the thought processes and the strategies that they had applied. In the second year of experimentation, design intent was incorporated in various exercises at the beginning of the year, in addition to the conrod. The main conclusion is that the correct division of the part into its pieces and adaptive expertise improved the results in relation to design intent in the CAD.

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“…In a parametric modeling context, it has been argued that over-and under-constrained parametric 2D profiles result in low quality 3D models, which fail to convey design intent and are more likely to cause regeneration errors or behave unpredictably when altered [7,8]. Design intent and how it is represented and managed are complex topics that have been the subject of numerous studies [9,10]. In the context of this paper, we consider design intent as the construct or plan that allows designers to anticipate the way a geometric model must behave when it is modified [11].…”

Section: Introductionmentioning

confidence: 99%

A constraint redundancy elimination strategy to improve design reuse in parametric modeling

González-Lluch

Plumed

Pérez-López

et al. 2021

Computers in Industry

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A Review of the Design Intent Concept in the Context of CAD Model Quality Metrics

Cited by 6 publications

References 21 publications

Conceptual Product Development through Parametric Optimization: A Case Study on the Design of an Ophthalmic Instrument

Conceptual Product Development through Parametric Optimization: A Case Study on the Design of an Ophthalmic Instrument

The importance of adaptive expertise in CAD learning: maintaining design intent

A constraint redundancy elimination strategy to improve design reuse in parametric modeling

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