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Displaying 726 - 750 of 2125

Characterizing Task-Based Human-Robot Collaboration Safety in Manufacturing

February 27, 2015
Author(s)
Jeremy A. Marvel, Joseph A. Falco, Ilari Marstio
A new methodology for describing the safety of human-robot collaborations is presented. Taking a task-based perspective, a risk assessment of a collaborative robot system safety can be evaluated offline during the initial design stages. This risk

Effects of wafer noise on the detection of 20 nm defects using optical volumetric inspection

February 11, 2015
Author(s)
Bryan M. Barnes, Francois R. Goasmat, Martin Y. Sohn, Hui Zhou, Andras Vladar, Richard M. Silver
Patterning imperfections in semiconductor device fabrication may either be noncritical [e.g., line edge roughness (LER)] or critical, such as defects that impact manufacturing yield. As the sizes of the pitches and linewidths decrease in lithography

Thermographic and FE Simulation of the DMLS Process at NIST

February 4, 2015
Author(s)
Brandon M. Lane, Li Ma, Shawn P. Moylan, M A. Donmez, Eric P. Whitenton, Daniel J. Falvey
A major effort of the Measurement Science for Additive Manufacturing Program at NIST is to provide high quality, well-defined temperature measurement of the DMLS process to support and validate multi-physics simulations. However, the dynamic, complex

A Semantic Framework for Modeling and Simulation of Cyber-physical Systems

December 30, 2014
Author(s)
Parastoo Delgoshaei, Mark Austin, Amanda Pertzborn
This paper describes a new semantic platform infrastructure for model-based systems engineering, requirements traceability, and system simulation and assessment of cyberphysical systems (CPSs). When fully developed this environment will support the

Product Data Sheet Ontology

December 18, 2014
Author(s)
Binyam G. Abeye, Edward J. Barkmeyer Jr., Peter O. Denno
Data exchange transactions for the engineering, procurement, and operation of process equipment depend heavily on product data sheets. Product data sheets are traditional paper forms that serve as the main method of communicating detailed equipment

DATA ANALYTICS USING SIMULATION FOR SMART MANUFACTURING

December 11, 2014
Author(s)
Guodong Shao, Sanjay Jain, Seungjun Shin
Manufacturing organizations are able to accumulate large amounts of plant floor production and environmental data due to advances in data collection, communications technology, and use of standards. The challenge has shifted from collecting a sufficient

VIRTUAL FACTORY REVISITED FOR MANUFACTURING DATA ANALYTICS

December 11, 2014
Author(s)
Sanjay Jain, Guodong Shao
Development of a data analytics application for manufacturing is best when tested with large sets of data. It is usually difficult for application developers to find access to real manufacturing data streams for testing new data analytics applications

Costs and Cost Effectiveness of Additive Manufacturing

December 4, 2014
Author(s)
Douglas Thomas, Stanley W. Gilbert
The use of additive manufacturing has increased significantly in previous years. Additive manufacturing is used by multiple industry subsectors, including motor vehicles, aerospace, machinery, electronics, and medical products. Currently, however, additive

ISO TC 184/SC 4 product and manufacturing information (PMI) EXPRESS models

December 1, 2014
Author(s)
Thomas R. Thurman
This document provides product and manufacturing information (PMI) EXPRESS models to be used in ISO 10303-242 edition 2. The models include representations for the following PMI symbology: thread symbols, surface texture symbols, edge condition symbols

A Cross-Domain Survey of Metrics for Modeling and Evaluating Collisions

November 28, 2014
Author(s)
Jeremy A. Marvel, Roger V. Bostelman
This paper provides a brief assessment of the metrics for measuring probability, degree, and severity of collisions as applied to autonomous and intelligent systems. Though not exhaustive, this survey evaluates the state-of-the-art of collision metrics

Toward Smart Manufacturing Using Decision Guidance Analytics

November 1, 2014
Author(s)
Alexander Brodsky, Mohan Krishnamoorthy, Daniel A. Menasce, Guodong Shao, Sudarsan Rachuri
This paper is focused on decision analytics for smart manufacturing. We consider temporal manufacturing processes with stochastic throughput and inventories. We demonstrate the use of the recently proposed concept of the decision guidance analytics

Feasibility of Integrating OAGIS and BPMN

October 22, 2014
Author(s)
Denis Gagne, Conrad Bock
Engineering and enterprise processes overlap in their concerns, for example, coordinating product design and customer relations. Integration of these processes provides more efficient communication and higher quality results than leaving them separated
Displaying 726 - 750 of 2125