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Search Publications by: Ram D. Sriram (Fed)

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Displaying 126 - 150 of 310

Standardized Data Exchange of CAD Models with Design Intent

September 1, 2007
Author(s)
Junhwan Kim, Mike Pratt, Raj G. Iyer, Ram D. Sriram
Modern CAD systems generate feature-based product shape models with parameterization and constraints. Until recently, standards for CAD data exchange among different CAD systems were restricted to the exchange of pure shape information. These standards

Data Exchange of Parametric CAD Models Using ISO 10303-108

July 1, 2007
Author(s)
Junhwan Kim, Mike Pratt, Raj G. Iyer, Ram D. Sriram
Modern CAD systems generate feature-based product shape models with parameterization and constraints. Until recently, standards for CAD data exchange among different CAD systems were restricted to the exchange of pure shape information. These standards

The Architecture Development Facilitator (ADF) First Year Report

March 1, 2007
Author(s)
Steven J. Fenves, Eswaran Subrahmanian, Puja Goyal, Jean-Cyrus L. Angbo, Faouzi Daoud, Ram D. Sriram
This document serves as the summary report on the first year?s progress on the Architecture Development Facilitator (ADF) project covering the activities from December 15, 2005, to December 15, 2006. The ADF is intended to assist the Office of Network

A Model of Deformable Rings for Interpretation of Wireless Capsule Endoscopic Videos

November 1, 2006
Author(s)
Piotr Szczypinski, Ram D. Sriram, Parupudi Sriram, Nageshwar Reddy
Wireless Capsule Endoscopy (WCE) provides a means to obtain a detailed video of the small intestine, not feasible with other endoscopic techniques. A single session with WCE may produce nearly 8 hours of video, which may take around one to two hours to

Feature Technology and Ontology for Embedded System Design and Development

August 1, 2006
Author(s)
XuanFang Zha, Ram D. Sriram
In this paper, we present our recent effort on using a feature technology and ontology for embedded systems modeling and design. We present an overview of embedded system design and propose an object-oriented UML modeling approach to representing embedded

Representation of Heterogeneous Material Properties in the Core Product Model

June 1, 2006
Author(s)
Arpan Biswas, Steven J. Fenves, V Shapiro, Ram D. Sriram
The Core Product Model (CPM) was developed at NIST as a high level abstraction for representing product related information, to support data exchange, in a distributive and a collaborative environment. In this paper, we extend the CPM to components with

Special Issue on Collaborative Engineering

June 1, 2006
Author(s)
Ram D. Sriram, Simon Szykman, D Durham
Design of complex engineering systems is increasingly becoming a collaborative task among designers or design teams that are physically, geographically, and temporally distributed. The complexity of modern products means that a single designer or design

Assembly Model Representation from Conceptual to the Detailed Design

March 1, 2006
Author(s)
Sudarsan Rachuri, Y H. Han, Sebti Foufou, Shaw C. Feng, Utpal Roy, Fujun Wang, Ram D. Sriram, Kevin W. Lyons
The important issue of mechanical assemblies has been a subject of intense research over the past several years. Most electromechanical products are assemblies of several components, for various technical as well as economic reasons. This paper provides an

A System for Performing Content-Based Searches on a Database of Mechanical Assemblies

January 1, 2006
Author(s)
A S. Deshmukh, M V. Karnik, Satyandra K. Gupta, Ram D. Sriram
The increased use of 3D CAD systems by product development organizations has resulted in large databases of assemblies; this explosion of assembly data will continue in the future. Currently, there are no effective content-based techniques to search these

Artificial Intelligence in Engineering: Personal Reflections

January 1, 2006
Author(s)
Ram D. Sriram
The field of artificial intelligence (AI), as we understand it now, got its impetus during a two-month workshop organized by John McCarthy (Stanford University), one of the founding fathers of AI, in Dartmouth in the summer of 1956. The term Artificial

The Role of Standards in Product Lifecycle Management Support

January 1, 2006
Author(s)
Eswaran Subrahmanian, Sudarsan Rachuri, A Bouras, Steven J. Fenves, Sebti Foufou, Ram D. Sriram
A major challenge of any product engineering project is to support the creation, exchange, management and archival of information about product, process, people and services across the networked and extended enterprise covering the entire product lifecycle

A Feature-Based Approach to Embedded System Hardware and Software Co-Design

December 1, 2005
Author(s)
XuanFang Zha, Steven J. Fenves, Ram D. Sriram
An embedded system is a hybrid of hardware and softwarethat combines software flexibility and hardware real-time performance. The co-design of hardware and software is the most critical but difficult issue in embedded system design. In this paper, we