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Search Publications

NIST Authors in Bold

Displaying 326 - 350 of 2123

Identification of machine tool squareness errors via inertial measurements

May 14, 2019
Author(s)
Karoly Szipka, Andreas Archenti, Gregory W. Vogl, Alkan Donmez
The accuracy of multi-axis machine tools is affected to a large extent by the behaviour of the system's axes and their error sources. In this paper, a novel methodology using circular inertial measurements quantifies changes in squareness between two axes

Uncertainty of particle size measurements using dynamic image analysis

May 14, 2019
Author(s)

Justin G. Whiting, Vipin N. Tondare, John H. Scott, Thien Q. Phan, M A. Donmez

Metal powder particle size and size distribution (PSD) are critical factors affecting powder layer density and uniformity in additive manufacturing processes. Among various existing measurement methods, dynamic image analysis (DIA) instruments are very

Towards Standard Exoskeleton Test Methods for Load Handling

May 9, 2019
Author(s)
Roger V. Bostelman, Ya-Shian Li-Baboud, Ann Virts, Soocheol Yoon, Mili Shah
Exoskeletons are now being marketed by several manufacturers and yet there are currently no standard test methods to compare exoskeletons to task. The National Institute of Standards and Technology (NIST) has been a key contributor to the formation of a

A Reference Schema for the Unit Manufacturing Process Information Model

May 7, 2019
Author(s)
William Bernstein, David Lechevalier
This document presents supporting documentation for a reference implementation of the Unit Manufacturing Process (UMP) information model presented in ASTM E3012, Standard Guide for Characterizing Environmental Aspects of Manufacturing Processes. A version

Incorporating unit manufacturing process models into life cycle assessment workflows

May 5, 2019
Author(s)
William Z. Bernstein, Cesar D. Tamayo, David Lechevalier, Michael Brundage
Life cycle assessment (LCA) carries significant uncertainties and imprecision due to a number of factors, including the framework's linearity assumptions and the wide use of aggregate unit processes in practice. The goal of this work is to exploit the unit

Proceedings of the 9th Model-Based Enterprise Summit (MBE 2018)

May 1, 2019
Author(s)
Thomas D. Hedberg, Mark G. Carlisle
The ninth installment of the Model-Based Enterprise (MBE) Summit was hosted at the National Institute of Standards and Technology (NIST) on April 2-5, 2018. The MBE Summit 2018 witnessed another year-over-year registration growth. This speaks to the

Wireless Network Design for Emerging IIoT Applications: Reference Framework and Use Cases

April 16, 2019
Author(s)
Yongkang Liu, Mohamed T. Hany, Kang B. Lee, Lotfi Benmohamed, Richard Candell
In this paper we propose a framework that allows a designer to assess various physical and cyber factors involved in determining the performance of a wireless use case as well as evaluate their performance impacts in search for a design that leads to an

Standards Needs for Maintenance Work Order Analysis in Manufacturing

April 3, 2019
Author(s)
Thurston Sexton, Michael Brundage
To bolster the efficiency and performance of maintenance work in manufacturing-maintenance being one of the key components to ensuring successful long-term operations-it is becoming increasingly necessary to ensure that maintenance operations are capable

ASTM F48 Formation and Standards for Industrial Exoskeletons and Exosuits

March 19, 2019
Author(s)
William G. Billotte, Brian D. Lowe, Donald R. Peterson
Established in the fall of 2017, ASTM F48 is a technical committee that is addressing the need for standards related to wearable devices that augment, enable, assist, or enhance motion, posture, or physical activity – commonly referred to as “exoskeletons”

Channel Characterization and Delay Optimization for Industrial Wireless Control Systems

March 4, 2019
Author(s)
Xiaolin Jiang, Zhibo Pang, Rick Candell, Dacfey Dzung, Michele Luvisotto, Carlo Fischione
Wireless communication is gaining popularity in industry for its simple deployment, mobility and low cost. Ultra low latency and high reliability requirements of mission critical industrial applications are highly demanding for wireless communication, and

A-UGV Capabilities - Recommended Guide to Autonomy Levels

February 26, 2019
Author(s)
Roger V. Bostelman, Elena R. Messina
A-UGV has been defined by ASTM Committee F45 as an "Automatic, Automated, or Autonomous vehicle that operates while in contact with the ground without a human operator." However, what do the levels actually mean to manufacturers, users, or especially

Design, Manufacturing, and Inspection Data for a Three-Component Assembly

February 12, 2019
Author(s)
Thomas D. Hedberg, Michael E. Sharp, Toby M. Maw, Mostafizur M. Rahman, Swati Jadhav, James J. Whicker, Allison Barnard Feeney, Moneer M. Helu
To better understand and address the challenges faced in linking all stages of a manufacturing and design process, an investigative fabrication process was designed and enacted as part of a collaboration between the National Institute of Standards and

Factory Optima: A Web-based System for Composition and Analysis of Manufacturing Service Networks based on a Reusable Model Repository

February 6, 2019
Author(s)
Alexander Brodsky, Mohan Krishnamoorthy, Mohomad O. Nachawati, William Z. Bernstein, Daniel A. Menasce
This paper reports on the development of Factory Optima, a web-based system that allows manufacturing process engineers to compose, optimize and perform trade-off analysis of manufacturing and contract service networks based on a reusable repository of

Annual Manufacturing Review: 2018

January 28, 2019
Author(s)
Douglas Thomas
This annual report characterizes US innovation and industrial competitiveness in manufacturing. It includes tracking domestic manufacturing activity and its domestic supply chain in order to develop a quantitative depiction of US manufacturing in the

COMPARISON OF DATA ANALYTICS APPROACHES USING SIMULATION

December 9, 2018
Author(s)
Sanjay Jain, Anantha Narayanan Narayanan, Yung-Tsun Lee
Selecting the right data analytics (DA) approach for an application is rather complex. Obtaining sufficient and right kind of data for evaluating these approaches is a challenge. Simulation models can support this process by generating synthetic data where

Empowering Robotics in Manufacturing Through Metrology

December 3, 2018
Author(s)
Jeremy A. Marvel, Elena R. Messina
This paper discusses the challenges and opportunities surrounding robotics, as faced by the manufacturing industry. The means by which metrology can address these challenges and opportunities are also discussed. Details are given regarding NIST's Robotic

The Agile Robotics for Industrial Automation Competition

December 3, 2018
Author(s)
William Harrison, Anthony Downs, Craig I. Schlenoff
The Agile Robotics for Industrial Automation Competition (ARIAC) is an annual simulation-based competition initiated in 2017. The competition challenges teams to design industrial robotic system control code to function in a dynamic environment. Each team
Displaying 326 - 350 of 2123