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Search Publications

NIST Authors in Bold

Displaying 526 - 550 of 2193

Integrating Finite Element Analysis with Systems Engineering Models

June 11, 2017
Author(s)
Jerome Szarazi, Axel Reichwein, Conrad Bock
In order to promote traceability, consistency, interoperability and better collaboration between systems engineering and Finite Element Analysis (FEA)-based simulation activities, we propose a tool-independent description of FEA models that integrates with

Smart manufacturing through a framework for a knowledge-based diagnosis system

June 9, 2017
Author(s)
Michael P. Brundage, Boonserm Kulvatunyou, Toyosi Ademujimi, Badarinath Rakshith
Various techniques are used to diagnose problems throughout all levels of the organization within the manufacturing industry. Often times, this root cause analysis is ad-hoc with no standard representation for artifacts or terminology (i.e., no standard

Towards a Robot Task Ontology Standard

June 8, 2017
Author(s)
Stephen B. Balakirsky, Craig I. Schlenoff, Sandro R. Fiorini, Signe Redfield, Marcos Barreto, Hirenkumar Nakawala, Joel L. Carbonera, Larisa Soldatova, Julita Bermejo-Alonso, Fatima Maikore, Paulo J. Goncalves, Elena D. Momi, S. Veera Ragavan, Tamas Haidegger
Ontologies serve robotics in many ways, particularly in describing and driving autonomous functions. These functions are built around robot tasks. The goal of a recently established international study group is to develop a knowledge representation that

ACCURACY DEGRADATION ANALYSIS FOR INDUSTRIAL ROBOT SYSTEMS

June 7, 2017
Author(s)
Guixiu Qiao, Brian A. Weiss
As robot systems become increasingly prevalent in manufacturing environments, the need for improved accuracy continues to grow. Recent accuracy improvements have greatly enhanced automotive and aerospace manufacturing capabilities, including high-precision

Building Connections through Standards Landscaping

June 7, 2017
Author(s)
Paul W. Witherell, Yan Lu
Standards are an essential part of how we do business, from communication, to establishing best practices, to achieving quality control. As commerce and technology continues to diversify, standards, and standard organizations, have become increasingly

Identification of machine tool geometric performance using on-machine inertial measurements

June 6, 2017
Author(s)
Gregory W. Vogl, Radu Pavel, Andreas Archenti, Thomas J. Winnard, Matlock M. Mennu, Brian A. Weiss, Alkan Donmez
Machine tools degrade during operations, yet accurately detecting degradation of machine components such as linear axes is typically a manual and time-consuming process. Thus, manufacturers need automated and efficient methods to diagnose the condition of

A System and Architecture for Reusable Abstractions of Manufacturing Processes

June 2, 2017
Author(s)
Alexander Brodsky, Mohan Krishnamoorthy, William Z. Bernstein, M. Omar Nachawati
In this paper we report on the development of a system for managing a repository and conducting analysis and optimization on manufacturing performance models. The repository is designed to contain (1) unit manufacturing process performance models, (2)

Channel Modeling and Performance of Zigbee Radios in an Industrial Environment

May 31, 2017
Author(s)
Mehrdad Damsaz, Derek Guo, Jeff Peil, Wayne Stark, Nader Moayeri, Rick Candell
In this paper we describe measurements of wireless propagation characteristics to develop path loss models in industrial environments. The models for path loss we develop are two-slope models in which the path loss is a piecewise linear relation with the

Automated Uncertainty Quantification Through Information Fusion in Manufacturing Processes

May 12, 2017
Author(s)
Saideep Nannapaneni, David Lechevalier, Anantha Narayanan Narayanan, Sankaran Mahadevan, Sudarsan Rachuri
Evaluation of key performance indicators (KPIs) such as energy consumption is essential for decision-making during the design and operation of smart manufacturing systems. The measurements of KPIs are strongly affected by several uncertainty sources such

Industrial Wireless Systems Workshop Proceedings

May 11, 2017
Author(s)
Richard Candell
Background: Wireless technology has great appeals to many manufacturers, in this case industrial automation systems, which include process control, discrete manufacturing, safety systems, and building automation. Applying wireless sensing and control

Dynamic Metrology and ASTM E57.02 Dynamic Measurement Standard

May 2, 2017
Author(s)
Roger V. Bostelman, Tsai H. Hong, Steven A. Legowik, Mili Shah
Optical tracking systems are used in a wide range of fields. The market for optical tracking systems has dramatically increased over the past several years to $1.2B revenue in 2014. This paper describes the new ASTM E3064 Standard test method procedures

Improvements in Accelerometer Calibration at NIST Using Digital Vibrometry

April 29, 2017
Author(s)
Beverly F. Payne, Richard A. Allen, Colleen E. Hood
Improvements in shaker design and laser vibrometer development has provided more precise calibration of accelerometers. Calibrations are performed at frequencies from 1Hz to 20 kHz with improved uncertainty and improved efficiency. The vibrometer mounting

Mobile Manipulator Stability Measurements

April 18, 2017
Author(s)
Roger V. Bostelman, Tsai H. Hong
Mobile manipulators are being marketed for material handling and other tasks. Manufacturers suggest the stability of the vehicle best when the onboard loading tapers the centroid to the center of the wheelbase as the payload height increases. Experiments
Displaying 526 - 550 of 2193
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