Shape-based searching for product lifecycle applications

Iyer, N.C.; Jayanti, Subramaniam; Lou, Kuiyang; Kalyanaraman, Yagnanarayanan; Ramani, Karthik

doi:10.1016/j.cad.2005.02.011

Cited by 70 publications

(29 citation statements)

References 36 publications

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“…As indicated by Iyer et al [59], citing Ullman [60], many design problems require the application of previous knowledge and the redesign of existing products. According to an industry research report by the Aberdeen Group [4], significant time and cost savings were achieved when companies reused design elements.…”

Section: Design Intent Communication and Model Reusementioning

confidence: 99%

Extended 3D annotations as a new mechanism to explicitly communicate geometric design intent and increase CAD model reusability

Camba

Contero

Johnson

2014

Computer-Aided Design

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Revista:Computer-Aided Design Versión / Versió: Preprint Cita bibliográfica / Cita bibliogràfica (ISO 690):CAMBA, Jorge, et al. Extended 3D annotations as a new mechanism to explicitly communicate geometric design intent and increase CAD model reusability. ComputerAided Design, 2014, vol. 57, p. 61-73 AbstractA successful implementation of the Model-Based Enterprise concept (MBE) requires maximizing the potential benefits of annotated 3D models. The foundations of the MBE model are established by digital product definition data practices, which are currently regulated by standards such as ASME Y14. 41-2003 and ISO 16792:2006. At the center of the MBE concept is the notion of CAD model reusability, which relies on the idea that 3D CAD models can be reused both throughout the entire product lifecycle and as a starting point for future development of new products. In this context, a critical aspect of CAD model reuse is the proper identification and understanding of the geometric design intent that is usually expressed implicitly within the CAD model.In this work, we present a method to communicate geometric design intent explicitly by overloading and extending the scope of the current annotation instruments available in the MBE approach. We propose a new broader type of model annotation that we call "extended annotation," where design information is represented both internally within the 3D model and externally, on a separate repository. This structure naturally demands additional mechanisms to support the interaction of users with the information. In order to manage the information stored in these extended annotations effectively, we implemented an annotation manager that automatically synchronizes the dual representation of the annotations. To reduce the visual clutter in the 3D model, the software provides powerful filtering, editing, and visualization capabilities, giving users complete control of the information stored in the model. Finally, a study was conducted with 60 participants to evaluate the performance of the proposed model and the usability of the annotation manager. Results show a statistically significant benefit of using the extended annotation system, suggesting the use of this model as a valuable approach to improve design intent communication.

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Section: Design Intent Communication and Model Reusementioning

confidence: 99%

Extended 3D annotations as a new mechanism to explicitly communicate geometric design intent and increase CAD model reusability

Camba

Contero

Johnson

2014

Computer-Aided Design

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“…Therefore, the study of proteins and their interactions might involve external shape similarity assessment. Over the last few years several algorithms for shape similarity assessment have been developed [Car03,Cam01,Iye05,Jay05]. As proteins are three dimensional entities, we will mainly focus on three dimensional shape similarity assessment algorithms.…”

Section: Literature Surveymentioning

confidence: 99%

Study of interaction of the cyclin-dependent kinase 5 with its activator, p25 and with the p25-derived inhibitor, CIP

Cardone¹,

Sriram²,

Albers³

et al. 2009

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A high-affinity inhibitor protein called CIP , which can be produced by small truncations of p35, was earlier identified by Amin, Albers, and Pant. P35 is one of the physiological activators of cdk5, a member of the cyclin-dependent kinase family. P25 is an activator derived from the truncation of the physiological cdk5 activator p35 upon exposure to Aβ peptides, and it is known to be associated with the hyperphosphorylation of specific neuronal proteins. This typically occurs in the case of neurodegenerative diseases such as Alzheimer's. In this paper we study in silico the binding mechanism of cdk5-p25 and cdk5-CIP complexes more in detail. This provides a better understanding of the inhibitory activity of the protein CIP. We use a geometry-based technique to verify the following hypothesis: p25's truncation provides increased flexibility to CIP, and hence CIP is able to conform better to cdk5 interface than p25. Therefore CIP is expected to bind to cdk5 more easily than p25 and prevent it from reaching its active conformation. Our in silico study is based on a geometry-based alignment algorithm. The algorithm is capable of efficiently aligning two protein conformations with respect to their interfaces, which are represented as point sets. The algorithm is based on biochemical criteria as well as geometrical ones. Our results indicate the validity of the flexibility hypothesis. They could be used, along with some observations we made on cdk5 activation, as a basis for a set of very targeted and therefore more efficient molecular dynamics simulations.

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“…Iyer et al [17] presented a CAD oriented search system, based on shape, voxelization and other approaches. Pal et al [25] extracted features from CAD models using genetic algorithms.…”

Section: Comparing Shape Models Of Cadmentioning

confidence: 99%

Retrieving Matching CAD Models by Using Partial 3D Point Clouds

Ip¹,

Gupta²

2007

Computer-Aided Design and Applications

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The ability to search for a CAD model that represents a specific physical part is a useful capability that can be used in many different applications. This paper presents an approach to use partial 3D point cloud of an artifact for retrieving the CAD model of the artifact. We assume that the information about the physical parts will be captured by a single 3D scan that produces dense point clouds. CAD models in our approach are represented as polygonal meshes. Our approach involves segmenting the point cloud and CAD mesh models into surface patches. The next step is to identify corresponding surface patches in point clouds and CAD models that could potentially match. Finally, we compute transformations to align the point cloud to the CAD model and compute distance between them. We also present experimental results to show that our approach can be used to retrieve CAD models of mechanical parts. INTRODUCTIONThe ability to search for a CAD model that represents a specific physical part is a useful capability that can be used in many different applications. The following scenario illustrates the usefulness of being able to search for a CAD model based on point cloud generated by a partial scan. Let us assume that a part needs to be replaced in a complex machine. There is no label on the part. Hence the user does not know the part number. The user scans the physical part using a 3D scanner and generates the point cloud. This point cloud is then used by the user to search the CAD database and find the CAD model of this part. The CAD model has the information about the part number and the user is able to order the replacement part using the part number.

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Shape-based searching for product lifecycle applications

Cited by 70 publications

References 36 publications

Extended 3D annotations as a new mechanism to explicitly communicate geometric design intent and increase CAD model reusability

Extended 3D annotations as a new mechanism to explicitly communicate geometric design intent and increase CAD model reusability

Study of interaction of the cyclin-dependent kinase 5 with its activator, p25 and with the p25-derived inhibitor, CIP

Retrieving Matching CAD Models by Using Partial 3D Point Clouds

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