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Search Publications

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Displaying 426 - 450 of 2123

Overview of an Ontology-based Approach for Kit Building Applications

November 8, 2017
Author(s)
Zeid Kootbally, Thomas Kramer, Craig I. Schlenoff, Satyandra K. Gupta
The Agility Performance of Robotic Systems (APRS) project at the National Institute of Standards and Technology (NIST) is using Web Ontology Language (OWL) ontologies for modeling in a robotic kitting workstation. The new technical idea for the APRS

Effect of the Additive Manufacturing Process on Cutting Forces in Hybrid Manufacturing

November 3, 2017
Author(s)
Michael Gomez, Andrew Honeycutt, Jarred C. Heigel, Tony Schmitz
Powder bed fusion (PBF) enables metal components with complex geometries to be made via additive manufacturing (AM). Disadvantages of AM are rougher surface finish and lower achievable dimensional tolerances compared to computer numerically-controlled (CNC

Model of Mobile Manipulator Performance Measurement using SysML

November 3, 2017
Author(s)
Roger V. Bostelman, Sebti Foufou, Tsai H. Hong, Mili Shah
Test methods for measuring safety and performance of mobile manipulators have yet to be developed. Therefore, potential mobile manipulator users cannot compare one system to another. Systems Modeling Language (SysML) is a general-purpose modeling language

Proceedings of the 2017 Model-Based Enterprise (MBE) Summit

October 12, 2017
Author(s)
Thomas D. Hedberg, Mark G. Carlisle
On April 3-6, 2017, the National Institute of Standards and Technology (NIST) hosted the Model- Based Enterprise (MBE) Summit to identify challenges, research, implementation issues, and les- sons learned in manufacturing and quality assurance where a

Even Small Factories Can Get Smarter

October 1, 2017
Author(s)
Thomas D. Hedberg, Moneer M. Helu
Smart manufacturing uses data to deliver value the way automation, mechanical machinery, and labor did in the past. Yet engineers often worry that transitioning to smarter factories involves navigating a deluge of unfamiliar and possibly expensive

Using Sensor Feedback to Accurately Estimate Part Pose in Gripper

September 28, 2017
Author(s)
Nithyananda Bhat Kumbla, Jeremy Marvel, Satyandra K. Gupta
High volume manufacturing use custom made fixtures during assembly operations. Small volume manufacturing cannot use fixtures in order to keep setup time and production cost low. The performance of the task in fixture-less assemblies depends on the

Simulating a Virtual Machining Model in an Agent-Based Model for Advanced Analytics

September 25, 2017
Author(s)
David J. Lechevalier, Seungjun Shin, Sudarsan Rachuri, Sebti Foufou, Yung-Tsun T. Lee, Abdelaziz Bouras
Monitoring the performance of manufacturing equipment is critical to ensure the efficiency of manufacturing processes. Machine-monitoring data allows measuring manufacturing equipment efficiency. However, acquiring real and useful machine-monitoring data

A DOMAIN DRIVEN APPROACH TO METAMODELING IN ADDITIVE MANUFACTURING

September 6, 2017
Author(s)
Peter O. Denno, Yan Lu, Paul Witherell, Sundar Krishnamurty, Ian Grosse, Douglas Eddy
Recent studies have shown advantages to utilizing metamodeling techniques to mimic, analyze, and optimize system input-output relationships in Additive Manufacturing (AM). This paper addresses a key challenge in applying such metamodeling methods, namely

Ionizing Radiation Processing and its Potential in Advancing Biorefining and Nanocellulose Composite Materials Manufacturing

September 1, 2017
Author(s)
Michael T. Postek, Dianne L. Poster, Andras Vladar, Mark S. Driscoll, Jay A. LaVerne, Zios Tsinas, Mohamad Al-Sheikhly
Nanocellulose is a high value material that has gained increasing attention because of its high strength, stiffness, unique photonic and piezoelectric properties, high stability and uniform structure. Through utilization of a biorefinery concept

Conceptual Modeling

August 19, 2017
Author(s)
Conrad E. Bock, Fatma Dandashi, Sanford Friedenthal, Natalie Harrison, Steven Jenkins, Leon McGinnis, Janos Sztipanovits, Adelinde Uhrmacher, Eric Weisel, Lin Zhang
Understanding and developing complex systems requires collaboration between individuals with widely varying expertise. Communication between these individuals is facilitated by conceptual models. Conceptual models are early stage artifacts that integrate

THERMAL PROPERTY MEASUREMENT METHODS AND ANALYSIS FOR AM SOLIDS AND POWDERS

August 9, 2017
Author(s)
Justin G. Whiting, Brandon M. Lane, Kevin Chou, Bo Cheng
Thermal properties of additive manufacturing (AM) solids and precursor materials are important factors for build process and part performance. However, measured thermal properties are not well documented, despite being used extensively in AM modeling and

INVESTIGATING GREY-BOX MODELING FOR PREDICTIVE ANALYTICS IN SMART MANUFACTURING

August 8, 2017
Author(s)
Peter O. Denno, Yan Lu, Paul Witherell, Sundar Krishnamurty, Ian Grosse, Douglas Eddy
This paper develops a grey-box modeling approach that combines manufacturing knowledge-based (white-box) models with statistical (black-box) metamodels to improve model reusability and predictability. A white-box model can utilize different types of

Modeling Performance Measurement of Mobile Manipulators

August 3, 2017
Author(s)
Roger V. Bostelman, Sebti Foufou, Tsai H. Hong
Mobile manipulators are being marketed around the world as single manufacturer systems (i.e., robot arm and vehicle manufactured by the same organization) and as independent robot arms, from a different manufacturer and integrated with automatic guided

Rapid Wafer-Scale Growth of Polycrystalline 2H-MoS2 by Pulsed Metalorganic Chemical Vapor Deposition

July 12, 2017
Author(s)
Berc Kalanyan, William A. Kimes, Ryan Beams, Stephan J. Stranick, Elias J. Garratt, Irina Kalish, Albert Davydov, Ravindra Kanjolia, James E. Maslar
High volume manufacturing of devices based on transition metal dichalcogenide (TMD) ultra-thin films will require deposition techniques that are capable of reproducible wafer-scale growth with monolayer control. To date, TMD growth efforts have largely

TOWARDS KNOWLEDGE MANAGEMENT FOR SMART MANUFACTURING

July 4, 2017
Author(s)
Shaw C. Feng, William Z. Bernstein, Thomas D. Hedberg Jr., Allison Barnard Feeney
The need for capturing knowledge in the digital form in design, process planning, production, and inspection has increasingly become an issue in manufacturing industries as the variety and complexity of product lifecycle applications increase. Both
Displaying 426 - 450 of 2123