Machining feature-based similarity assessment algorithms for prismatic machined parts

Cardone, Antonio; Gupta, Satyandra K.; Deshmukh, Abhijit; Karnik, Mukul

doi:10.1016/j.cad.2006.08.001

Cited by 59 publications

(23 citation statements)

References 29 publications

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“…It has been proven to work in simple scenarios and is validated empirically in many domains in the real world [52][53][54]. Typically, Cardone et al [55] proposed a CBR based method for assessing the cost of machining for newly design prismatic parts. The method was similaritybased so that the similar part in database to the target part is 8 Advances in Mechanical Engineering retrieved to predict the cost of machining for the newly design part.…”

Section: Cbr Based Systems and Applications Cbrmentioning

confidence: 99%

Recent Developments on Computer Aided Fixture Design: Case Based Reasoning Approaches

Hashemi

Shaharoun

Izman

et al. 2014

Advances in Mechanical Engineering

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Fixture design is an important issue in the process of manufacturing. As a critical design activity process, automation in fixture design plays an integral role in linking computer aided designs and computer aided manufacturing. This paper carries out a literature review of computer aided fixture design (CAFD) developments using intelligent methods that have been commonly utilized in automation in the last two decades. The first part of this review considers the steps of fixture design along with the significant researches and requirements of fixtures over time. After that, the paper presents important and relevant research carried out in the field of CAFD using intelligent approaches and the working principles surrounding this issue. The following section concentrates on the details of case based reasoning (CBR) approach, the most successful approach in CAFD. The examination of this approach is carried out based on applications, stages of CBR based systems fixture design, working principles, and pertinent proposed approaches. Lastly, the present drawbacks of the current methods and shortfalls in research are identified for future studies.

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Section: Cbr Based Systems and Applications Cbrmentioning

confidence: 99%

Recent Developments on Computer Aided Fixture Design: Case Based Reasoning Approaches

Hashemi

Shaharoun

Izman

et al. 2014

Advances in Mechanical Engineering

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“…Feature-based techniques discriminate the three dimensional models based on the features and their characteristics rather than the gross shape of the object. Feature interactions and multiple interpretations still pose significant challenges to successful extraction of features [Car04,Car06]. Some of these techniques appear to be promising for specific domains such as manufacturing cost estimation, while some others can be used as a filter to quickly prune dissimilar objects based on the shape similarity assessment criteria [Gup99,Kar05,Ram01].…”

Section: Literature Surveymentioning

confidence: 99%

“…This makes the problem even harder. In fact standard minimization techniques cannot be used as, in general, the closest point q from set B to a given point p i from set A changes as transformation T is applied to set A [Car06]. In particular, among the feasible values of transformation T there will be some specific values in correspondence of which the closest point q from set B to a given point p i from set A will change [Car06].…”

Section: Definition Of the Distance Function To Evaluate Protein Geommentioning

confidence: 99%

“…In fact standard minimization techniques cannot be used as, in general, the closest point q from set B to a given point p i from set A changes as transformation T is applied to set A [Car06]. In particular, among the feasible values of transformation T there will be some specific values in correspondence of which the closest point q from set B to a given point p i from set A will change [Car06]. For a 2 DOF instance that is simpler to visualize, it can be seen that the transformation space for a given point p i of set A is divided into a set of subspaces such that its closest neighbor does not change within them (see Figure 15).…”

Section: Definition Of the Distance Function To Evaluate Protein Geommentioning

confidence: 99%

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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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“…Pal et al [25] extracted features from CAD models using genetic algorithms. Cardone et al [4] compared prismatic machined parts by using machining features. Various database techniques for CAD are discussed in [6,7,12].…”

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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Machining feature-based similarity assessment algorithms for prismatic machined parts

Cited by 59 publications

References 29 publications

Recent Developments on Computer Aided Fixture Design: Case Based Reasoning Approaches

Recent Developments on Computer Aided Fixture Design: Case Based Reasoning Approaches

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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