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Alternative Sampling Plans for Verification of Pipeline Material Properties: Frequentist and Bayesian Statistical Approaches

Autor: Jed Ludlow

Publikováno v: Volume 1: Pipeline Safety Management Systems; Project Management, Design, Construction, and Environmental Issues; Strain-Based Design and Assessment; Risk and Reliability; Emerging Fuels and Greenhouse Gas Emissions.

The creation and retention of accurate records reflecting the makeup of a pipeline is a critical aspect of pipeline safety. In the U.S., 49 CFR 192 provides guidance on the verification of pipeline material properties for populations of like pipe, in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9fda50cfb5ede2d439941739532be93d
https://doi.org/10.1115/ipc2022-87115

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Optimal Design of Permanent Magnet Bearings with Application to the HeartQuest Ventricular Assist Device

Autor: Jed Ludlow, James F. Antaki, Chen Chen, Gill B. Bearnson, Brad Paden

Publikováno v: JSME International Journal Series C. 46:403-408

Closed-form design equations for magnetic bearings are desirable for design optimization of sophisticated electrical mechanical systems such as artificial hearts. We develop asymptotic approximations to force and stiffness characteristics of magnetic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ddb2af6a6939076baeb60b68a9605c43
https://doi.org/10.1299/jsmec.46.403

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A Magnetic Suspension Theory and Its Application to the HeartQuest Ventricular Assist Device

Autor: Gill B. Bearnson, Dave Paden, James F. Antaki, Jed Ludlow, Brad Paden, Randolph Crowson, Chen Chen

Publikováno v: Artificial Organs. 26:947-951

Motivated by the design of the HeartQuest magnetically levitated left ventricular assist device, closed form expressions have been developed to compute forces and stiffnesses of magnetic suspensions. The theory applies to any combination of concentri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20068585c1c1564babfb25cd7da98ea8
https://doi.org/10.1046/j.1525-1594.2002.07125.x

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Multiple Data Set ILI for Mechanical Damage Assessment

Autor: Jed Ludlow, Chris Goller, James Simek

Publikováno v: Volume 2: Pipeline Integrity Management.

The purpose of this paper is to present a non-traditional pipeline mechanical damage ranking system using multiple-data-set in-line inspection (ILI) tools. Mechanical damage continues to be a major factor in reportable incidents for hazardous liquid

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::44647edb0d94323bac1f65c1ac47a1a2
https://doi.org/10.1115/ipc2012-90244

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Oblique Field Magnetic Flux Leakage Inline Survey Tool: Implementation and Results

Autor: Jed Ludlow, Phil Tisovec, James Simek

Publikováno v: 2010 8th International Pipeline Conference, Volume 1.

InLine Inspection (ILI) tools using the magnetic flux leakage (MFL) technique are the most common type used for performing metal loss surveys worldwide. Based upon the very robust and proven magnetic flux leakage technique, these tools have been show

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5c6ab47b3afb75f30f35c2fe88bde398
https://doi.org/10.1115/ipc2010-31313

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