Aerial robotic systems / Jamie Branch in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 35, N° 7 (07/2018)

[article]  inJOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL) > Vol. 35, N° 7 (07/2018) . - p. 28-33 Titre : Aerial robotic systems : A novel approach to safe coating inspection at heights Type de document : texte imprimé Auteurs : Jamie Branch, Auteur Année de publication : 2018 Article en page(s) : p. 28-33 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Contrôle technique Drones Revêtements protecteurs Index. décimale : 667.9 Revêtements et enduits Résumé : Traditional coating inspection techniques require extensive manual testing by the inspector, often at vertical heights that must be accessed by equipment such as scaffolding, lifts and ladders. Aerial robotic technology offers a novel approach to obtaining big data more efficiently, while reducing an inspector's occupational exposure to dangerous heights. This article addresses the benefits, as well as limitations, of utilizing aerial robotic systems as a viable means of coating inspection. Dry film thickness (DFT) is an integral component in determining the quality of a coating job. Strcutures with large surface areas will require enormous quantities of data to ensure that a coating is in compliance with the applicable standards and specifications. For example, if 300,000 m² of flat surface called for coating inspection by DFT, a minimum of 45,000 gauge readings would be required for compliance with SSPC-PA 2. To obtain these measurements, the inspector must manually touch the probe to the material being measured. Current handheld electronic Type 2 DFT equipment is conveniently designed to be lightweight and portable; however, it requires the inspector to physically access the testing sites, which are frequently located at dangerous heights. Scaffolding, scissor lifts, fall protection and other access equipment are utilized to reach test sites, which are expensive and present fall hazards to personnel accessing them. The Bureau of Labors Statistics reports that 849 workers lost their lives in 2016 from falling while on the job across all industries. The United States Occupational Safety and Health Administration (OSHA) established a hierarchy of hazard protection that specifies that engineering fall hazards out and away from the workplace is the most effective strategy for keeping workers safe. An alternative to performing measurements manually at the test site is to utilize an aerial robotic system to perform the measurements with the worker safely on the ground. This method satisfies OSHA's hierarchy of fall protection by engineering the fall hazard away by removing the necessity of the worker to access heights. Note de contenu : - BENEFITS : Safety - Time and cost savings - Big data tied to geospatial coordinates - LIMITATIONS : New technology - Wind - Confined spaces - Geometry - Fig. 1 : Robotic aircraft takes DFT readings on a ship - Fig. 2 : A pilot navigates the aircraft while remaining safly on the ground - Fig. 3 : An aircraft inspects at a chemical plant - Fig. 4 : Robotic aircraft are a cost-effective tool, reducing billable time spent repetitively accessing inspection areas - Fig. 5 : Inspection of multiple structure types can be safely conducted by robotic aircraft Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31611 [article]

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Contact-based nondestructive testing / Bob Dahlstrom in COATINGS TECH, Vol. 15, N° 7 (07/2018)  

[article]  inCOATINGS TECH > Vol. 15, N° 7 (07/2018) . - p. 44-48 Titre : Contact-based nondestructive testing : (NDT) at height with aerial robotics Type de document : texte imprimé Auteurs : Bob Dahlstrom, Auteur ; Jamie Branch, Auteur Année de publication : 2018 Article en page(s) : p. 44-48 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Contrôle non destructif Contrôle technique Epaisseur -- Mesure Revêtements:Peinture Robots Surfaces -- Analyse Ultrasons Index. décimale : 667.9 Revêtements et enduits Résumé : To take nondestructive testing (NDT) measurements at height, equipment such as aerial lifts, scaffolding, ladders, or other solutions are required to reach areas on ships, bridges, aboveground storage tanks, flare stacks, and other infrastructure and industrial sites. This is both dangerous, due to the possibility of falls, and time consuming. In certain instances, it may also require taking an asset, such as a flare stack, offline so it can be accessed to take NDT readings. Handheld digital testing devices are traditionally used to perform NDT inspections of material surfaces, with the inspector physically accessing all test sites to obtain a measurement. Utilizing an aerial robotics platform for contact-based NDT measurements such as dry film thickness (DFT), surface profile (SP), or ultrasonic testing (UT) allows workers to remain safely on the ground while the device performs measurements at elevation. Figure 1 demonstrates how the pilot/inspector remains at ground level, while the aircraft approaches a ship for DFT measurements. In addition to being safer, the aerial robotic NDT measurement process can be faster due to the job no longer requiring access equipment and the manual intensity of a human measuring every inspection area. The use of an aerial robotics platform is a novel application utilizing existing NDT devices and available drone technologies equipped with a system of complex integrations; custom sensor arrays, printed circuit boards (PCB) and software, that allows for a better application of science. The system has the potential to improve the inspection, testing, and data collection aspects of assets by making the NDT measurement process easier and safer. This allows for more frequent measurements and/or a larger quantity of measurement samples at a more efficient rate. With an easier, faster, and safer method to collect NDT measurements from locations of height, we can expand the science of nondestructive testing by collecting data from locations where data was either inaccessible or difficult to obtain due to access issues, safety considerations, or other limitations. The patented aerial robotic system discussed in this article flies up to a structure, then under full autonomous software control, touches an NDT measurement probe (such as a DFT, SP, UT, etc.) to the target and records the measurement data compliant with SSPC, IMO PSPC, ISO, ASTM, API, or other standards. The goal of this article is to make readers aware of this new technology, specifically through DFT testing, as well as to provide information as to its efficacy, limitations, and operational requirements. Note de contenu : - Background : use of electronic DFT measurement devices - Prevailing 'manual' measurement methodology : Regulatory view on working at heights - NEW 'AERIAL ROBOTIC' MEASUREMENT METHODOLOGY - EFFICACY OF THE DATA COLLECTED BY AN 'AERIAL ROBOTIC' MEASUREMENT SYSTEM - Fig. 1 : Representative photo of handheld digital testing device - Fig. 2 : Aerial robotics DFT measurements testing - Fig. 3 : Real time DFT measurement user interface - Table : T-test En ligne : https://drive.google.com/file/d/1Zi4xwcw5z-MdL8s_bajxgBr-VlFErjaD/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31211 [article]

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