Thematische Bibliographien / Part Inspection

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Auswahl der wissenschaftlichen Literatur zum Thema „Part Inspection“

Autor: Grafiati

Veröffentlicht am 25. Mai 2024

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Zeitschriftenartikel zum Thema "Part Inspection"

Abramovich, Gil, Juyang Weng und Debasish Dutta. „Adaptive Part Inspection Through Developmental Vision“. Journal of Manufacturing Science and Engineering 127, Nr. 4 (08.03.2005): 846–56. http://dx.doi.org/10.1115/1.2039103.

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We present a novel online inspection method for manufacturing processes that automatically adapts to variations in part and environmental properties. This method is based on a developmental learning architecture comprising a procedure that focuses attention to apparently defective regions, a recognition method that performs automatic feature derivation based on a set of training images and hierarchical classification, and an action step that controls attention and further decision processes. The method adapts to variations incrementally by updating rather than recreating the training information. Also, the method is capable of inspecting and training simultaneously. Addressing new inspection tasks requires neither re-programming and compatibility tests, nor quantitative knowledge about the image set, from a human developer. Instead, automatic or manual training of the inspection system according to simple guidelines is applied. These attributes allow the method to improve online performance with minimal ramp-up time. Our system performed inspection of three applications with low error rate and fast recognition, confirming its suitability for general-purpose, real-time, online inspection.

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Wilrich, Peter-Theodor. „Part 1.: Sampling Inspection“. Allgemeines Statistisches Archiv 84, Nr. 3 (21.09.2000): 239–50. http://dx.doi.org/10.1007/s101820000031.

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Nagy, Albert L. „PCAOB Quality Control Inspection Reports and Auditor Reputation“. AUDITING: A Journal of Practice & Theory 33, Nr. 3 (01.03.2014): 87–104. http://dx.doi.org/10.2308/ajpt-50752.

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SUMMARY: In 2002, the peer review auditor program was replaced with independent inspections of audit firms by the Public Company Accounting Oversight Board (PCAOB). The PCAOB inspections differ from the peer reviews in several key areas including the independence level of the reviewers, the nature and timing of the reviews, and the content and timing of the findings' disclosures. This study focuses on the informational value of the quality control criticisms disclosure included in Part II of the PCAOB inspection reports. After each inspection, the PCAOB issues inspection reports that include a public portion (Part I) of identified audit deficiencies, and most include a nonpublic portion (Part II) of identified quality control weaknesses. Part II of the report only becomes public if the firm fails to satisfactorily remediate the quality control deficiencies in a 12-month period. This study examines the change in audit firms' market share following the public disclosure of Part II of the inspection report. The results find that audit firms lose a significant amount of market share following the public disclosure of quality control criticisms, and suggest that such a disclosure provides a credible signal of auditor quality to audit clients.

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Avenhaus, R. „APPLICATIONS OF INSPECTION GAMES“. Mathematical Modelling and Analysis 9, Nr. 3 (30.09.2004): 179–92. http://dx.doi.org/10.3846/13926292.2004.9637251.

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An inspection game is a mathematical model of a non‐cooperative situation where an inspector verifies that another party, called inspectee, adheres to legal rules. The inspector wishes to deter illegal activity on the part of the inspectee and, should illegal activity nevertheless take place, detect it with the highest possible probability and as soon as possible. The inspectee may have some incentive to violate his commitments and violation, if observed, will incur punishment. Therefore if he chooses illegal behaviour, the inspectee will wish to avoid detection with the highest possible probability. Three examples of applications are presented. The first one deals with random controls in public transportation systems. The second one describes the problem of verification of arms control and disarmament in a very general way. The third one deals with inspections over time which are important in the context of non‐proliferation verification.

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Šarkan, Branislav, Juraj Hudec, Stefania Semanova, Monika Kiktova und Vladimir Djoric. „Impact of Significant Factors on Assessing the Technical Conditions of Vehicles at Technical Inspection Stations“. Archives of Automotive Engineering – Archiwum Motoryzacji 87, Nr. 1 (30.03.2020): 33–46. http://dx.doi.org/10.14669/am.vol87.art3.

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The paper analyses the assessment of the technical condition of vehicles at technical inspection stations in the Slovak Republic in the period of 2007 – 2019. There are described the legislative conditions for assessment of the technical condition of vehicles at technical inspections stations in the Slovak Republic. Data from technical inspections and defects within all technical inspection stations was recorded in the nationwide information system. These data was used as base for the next analysis. This paper also describes the possibilities for detection of deficiencies at technical inspection stations, and in the final part the impact of expert supervision on the operation of the selected technical inspection stations was analysed. The paper also examines significant factors affecting the assessment of the technical condition of vehicles at technical inspection stations in the Slovak Republic. The first factor represents legislative measures introducing more sophisticated technical means to control technical inspection stations, and the second factor is technical supervision by supervisory authorities over technical inspection stations.

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Pincheira, Miguel, Mattia Antonini und Massimo Vecchio. „Integrating the IoT and Blockchain Technology for the Next Generation of Mining Inspection Systems“. Sensors 22, Nr. 3 (25.01.2022): 899. http://dx.doi.org/10.3390/s22030899.

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Inspection of mining assets is a crucial part of the maintenance process and is of interest to several stakeholders (e.g., OEMs, owners, users, and inspectors). Inspections require an inspector to verify several characteristics of the assets onsite, typically using legacy and poorly digitized procedures. Thus, many research opportunities arise from the adoption of digital technologies to make these procedures more efficient, reliable, and straightforward. In addition to cloud computing, the ubiquitous presence of modern mobile devices, new measurement tools with embedded connectivity capabilities, and blockchain technologies could greatly improve trust and transparency between the stakeholders interested in the inspection. However, there has been little discussion on integrating these technologies into the mining domain. This paper presents and evaluates an end-to-end system to conduct inspections using mobile devices that directly interact with constrained IoT sensor devices. Furthermore, our proposal provides a method to integrate constrained IoT devices as smart measuring tools that directly interact with a blockchain system, guaranteeing data integrity and increasing the trustworthiness of the data. Finally, we highlight the benefits of our proposed architecture by evaluating a real case study in a mining inspection scenario.

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Zhou, Guanyan, Yingguang Li, Changqing Liu und Xiaozhong Hao. „A posture adjustment optimization method of the laser inspection device for large complex surface parts“. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 232, Nr. 13 (12.05.2017): 2375–85. http://dx.doi.org/10.1177/0954405417705416.

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The blank of large complex surface parts such as aircraft skin parts is formed by roll–bending process, which always introduces a big shape deviation between actual blanks and the desired ones. The cutting tool path for the blank machining planned based on the nominal digital model of the part may scrap the part due to the shape deviation. In order to address this issue, laser inspection method is used to inspect the blank before machining to obtain the actual shape of the blank which can be used as a reference for cutting tool path generation in addition to the nominal digital model of the part. While the laser inspection device posture adjustment is an important factor for inspection precision, it should be intensively focused. The difficulty of the laser inspection device posture adjustment optimization is that it can only be performed based on the nominal digital model of the part, while the real inspection object is the actual blank whose real shape is unknown, which may lead to the inspection precision disqualification. In order to address the above difficulty, the actual blank profile is first constructed with a few of laser inspection points obtained by rough inspecting. An inspection path planning method is proposed based on the actual blank profile. A genetic algorithm is used to optimize the pendulum angles of the laser inspection device based on the inspection path and the actual blank profile, and the optimized postures of the actual blank can be calculated based on the pendulum angles. The proposed method of this article is verified by the inspection of an aircraft skin part, and the experiment results show that this method can ensure the final inspection precision.

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Apiratwarakul, Korakot, Kamonwon Ienghong, Takaaki Suzuki, Ismet Celebi, Vajarabhongsa Bhudhisawasdi und Somsak Tiamkao. „Using Routine Ambulance Inspection Report Application to Reduce Wasted Time in Emergency Medical Services“. Open Access Macedonian Journal of Medical Sciences 9, E (20.04.2021): 298–301. http://dx.doi.org/10.3889/oamjms.2021.6022.

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BACKGROUND: Ambulance inspections make up part of the emergency medical services (EMS) to keep operations running smoothly as well as to maximize and maintain the safety of vehicles used for delivery of both staff and patients. The EMS of Srinagarind Hospital has been using an ambulance inspection report application since January 2020. Nevertheless, there has been no comparative study of the benefits associated with the use of this specification. AIM: The aim of this study was to compare the advantages of an ambulance inspection report application and paper checklist. METHODS: This cross-sectional study was conducted amid the EMS at a university hospital in Thailand. Data gathering was carried out by employing the Srinagarind Hospital database and ambulance inspection report application throughout January 1, 2019, and December 31, 2020. RESULTS: A total of 2350 ambulance inspections were recorded during the 2-year study period. Recognition times for ambulance inspections incorporating paper checklist and inspection with application were 35.5 ± 9.4 min and 1.02 ± 0.5 min, respectively (P < 0.001). Action times were 25.2 ± 5.1 min and 1.04 ± 0.2 min, respectively. Ambulance inspection compliance rate with the application was 95.3% and 70.1% with a paper checklist. CONCLUSION: Ambulance inspections carried out with an application can reduce recognition and action time, and increase ambulance inspection compliance rate.

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Zhang, Zhihua, Amar Jain und Vinay Kumar. „Model-Based Part Manufacturing Quality Inspection Path Planning“. Wireless Communications and Mobile Computing 2022 (24.02.2022): 1–11. http://dx.doi.org/10.1155/2022/3119284.

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This article mainly studies the path planning of part manufacturing quality inspection based on models. Therefore, this paper optimizes the inspection path planning by combining the deep learning of the BP neural network in the neural network model, then improves the recognition efficiency of parts with various shapes through the collection of surface point information, and then combines the basic principles of model inspection and quality control principles to improve the accuracy of quality inspection. In order to better design this optimal path, this paper also designs welding basic formation parameter experiments and robustness analysis experiments to verify the influencing factors of the welding process and the specific results of image processing; this paper also designed the part outer diameter quality inspection test analysis to verify the accuracy and coverage of model-based part manufacturing quality inspection. The results obtained through the collection of experiments are finally compared with the traditional part quality inspection path; the experimental results show that compared with the traditional part quality inspection path, the new part quality inspection path can improve the accuracy rate of 5%-17%, the coverage rate of 9%-20%, and efficiency of 3%-17%.

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Sangeeta Pandey, Ajay Kumar Sinha. „Visual Inspection Checklist For Concrete Structures (As A Part Of Structural Health Assessment)“. Tuijin Jishu/Journal of Propulsion Technology 44, Nr. 3 (24.11.2023): 4070–81. http://dx.doi.org/10.52783/tjjpt.v44.i3.2246.

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Visual inspection of deteriorating reinforced concrete structures is an integral aspect of routine assessment practices. Data collected through visual inspection is primarily qualitative and subjective because it rarely involves. This article provides structural inspectors and facility engineers the methodology for visually inspecting any civil structure in a systematic way. The subject article is not prescribing any repair, retrofitting and rehabilitation methodologies. With help of basic design, technical and geographical information, inspectors can add value to the evaluation of deteriorated condition of structures. It is primarily for evaluating general civil structures, like buildings, retaining walls, transmission line towers, this study includes all the civil concrete structures, steel structures and pre-fabricated structures.

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Dissertationen zum Thema "Part Inspection"

Chen, Austin Hua-Ren. „Integrated Inspection for Precision Part Production“. Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/14586.

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This research develops a methodology for enhancing the performance of a precision computer numerically controlled (CNC) machine tool. The ability to precisely maintain the desired relative position between the cutting tool and the workpiece along the cutting trajectory has a major impact on the dimensional accuracy of the finished part. It is important to ensure that the workpiece geometry satisfies tolerances before removing it from the machine tool. Traditional manufacturing procedures do not catch bad parts until the post-process inspection stage, when the part has already been removed from the setup. Subsequent attempts at re-machining require that the workpiece be re-fixtured back on the machine which often introduces more error into the process. The objective of this research is to develop a methodology that integrates pre-process calibration and process-intermittent gaging to enhance the ability of a two-axis vertical turning center to cut a circular arc. The developed methodology is straightforward and integrates the usage of commercially available instrumentation such as the ball bar and on-machine probe for error identification, prediction, and compensation.

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Baradi, Divyank. „Control strategies and inspection methods for welded part“. Thesis, Karlstads universitet, Avdelningen för maskin- och materialteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-16383.

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Present and future demonstrator designs were used to demonstrate the quality assurance of welds. The NDT methods tested on prototype demonstrator parts are: visual inspection, radius gauges, throat size gauge, liquid-penetrant testing, magnetic particle testing and ultrasonics with pulse echo and phased array. The other methods like eddy current, time of flight diffraction, radiography, impression test, macro test and infrared thermographs are currently being analyzed along with their inspection costs. The control plans for present and future designs with corresponding present and future NDT methods are suggested to minimize a shift in process. Magnetic particle testing revealed a lack of fusion and cracks for fillet welds, whereas ultrasonic pulse echo and phased array identified an internal lack of fusion, inner pores/slag inclusions on butt welds. Ultrasonic PAUT & TOFD could be used for accurate defect identification and thermography for online identification of lack of penetration, depth of penetration and weld parameters.
Weight reduction by improved weld quality (WIQ)

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Ask, Eric A. (Eric Andrew). „Instrumentation of a sensor for small part inspection using laswer fluorescence“. Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/37733.

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Davis, Tyler A. „Flexible machine tool control for direct, in-process dimensional part inspection /“. Diss., CLICK HERE for online access, 2004. http://contentdm.lib.byu.edu/ETD/image/etd478.pdf.

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Davis, Tyler Addison. „Flexible machine tool control for direct, in-process dimensional part inspection“. BYU ScholarsArchive, 2004. https://scholarsarchive.byu.edu/etd/139.

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For some time now coordinate measuring machines have been an integral part of the shop floor. The goal has been to make coordinate measuring machines (CMMs) into tools that can easily be used by machinists to improve their manufacturing capabilities. The value of a CMM as a quality control tool is undisputed. Now efforts are being made to further reduce the time and cost of measurement by reducing the physical distance between machining and measuring processes. The ability to reduce that distance to zero and measure a part directly on the chip-making machine has been a goal for many years. Dimensional inspection of parts is primarily conducted by coordinate measuring machines operating on motion instructions from task planning software. The research in direct machining and control (DMAC) at BYU has identified a potential application of CMM technologies on existing machine tools. To prove that a machine tool can be controlled as a CMM with the DMAC controller, this research will integrate the software package PC-DMIS provided by Wilcox Associates, Inc. with a DMAC controller provided by Direct Controls, Inc. to conduct in-process dimensional inspection of parts as they are being machined. This process is referred to as DirectCMM because it will link the DMAC controller directly to PC-DMIS without need for post-processing. This thesis will lay the groundwork for future efforts at developing systems that utilize in-process part inspection to dynamically correct computer aided manufacturing (CAM) process plans. To aid future efforts at dynamic CAM process updating, a software interface specification will be created for passing measurement data between CMM and CAD/CAM software packages. A CMM control specification will also be created to provide a standard method for controlling coordinate measuring machines with the DMAC controller. Possible methods for dynamic CAD/CAM updating will be explored.

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Borwankar, Raunak. „Optical Non-Destructive Surface Inspection and Automatic Classification of Cast Iron Automotive Part“. Digital WPI, 2017. https://digitalcommons.wpi.edu/etd-theses/1229.

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Over the past decade, research into computer vision has proliferated with the goal to incorporate artificial intelligence into a wide range of applications. These applications can be as sophisticated as intelligent assistants in smartphones and self-driving cars or as mundane as text and face recognition. While most of these applications are software based, they represent unique challenges when it comes to industrial implementation. This thesis concentrates on an optical non-destructive testing (NDT) and automatic classification methodology using customized image processing techniques. In contrast to conventional spatial analyses, which are highly susceptible to noise and human perception, our proposed transform domain approach provides a high degree of robustness and flexibility in feature selection and hence a better classification efficiency. Our presented algorithm classifies the Part-Under-Test (PUT) into two bins of either acceptable or faulty using transform domain techniques in conjunction with a classifier. Because the classification is critically dependent on the features extracted from these images, a sophisticated scalable database was created. This thesis applies transform domain techniques such as Discrete Wavelet Transform (DWT) and Rotated Wavelet Transform (RWT) for feature extraction and then classifies the PUT based on those features. Although, this approach achieves promising classification efficiency, it does not meet industrial standards. It was concluded that in order to achieve those standards, the effect of emissivity fluctuations of the PUT should be negated. The research was then extended to apply an image acquisition algorithm in the form of shape from polarization. The approach exploits the partially linearly polarization of reflected light from the PUT surface. It was observed that this method could not only detect if the PUT is faulty or fault free, but also highlight the locations of the flaws.

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Carlson, Shane A. „Development of a Variational Part Model Using In-Process Dimensional Measurement Error“. Diss., CLICK HERE for online access, 2006. http://contentdm.lib.byu.edu/ETD/image/etd1341.pdf.

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Rezaeimalek, Mohammad. „Planification des activités d’inspection sous incertitude basée sur les conditions de maintenance préventive d’un système de production série“. Thesis, Paris, ENSAM, 2019. http://www.theses.fr/2019ENAM0007.

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La planification de l'inspection de la qualité des pièces (PQIP) est un problème important dans les systèmes de production. En raison du fort impact des activités de maintenance préventive (PM) sur le taux de non-conformité des produits (un des principaux paramètres du problème PQIP), il est nécessaire de développer une planification intégrée des activités l'inspection et les activités de maintenance afin d’obtenir une optimisation globale du système. Cette thèse présente des modèles mathématiques de programmation linéaire à nombres entiers mixtes pour le problème de planification intégrée du contrôle de la qualité et des activités de gestion de maintenance dans un système de production en série à plusieurs étapes. Les modèles déterminent simultanément le moment et l’endroit optimals pour effectuer les activités susmentionnées en prenant en compte la détérioration des étapes de production. Ces deux décisions sont effectuées via la minimisation du coût total (y compris la production, la maintenance, l'inspection, la mise au rebut, la réparation et la pénalité des articles défectueux expédiés au client) et ainsi elles optimisent la productivité du système. Dans ce cas, la productivité du système est formulée comme une mesure non linéaire, puis linéarisée par la technique d'approximation linéaire par morceaux. En plus, l’incertitude relative à l’estimation des composantes de coût et de la quantité demandée est gérée par une approche possibiliste robuste. Un exemple numérique et une étude de cas réelle sont étudiés pour valider et vérifier les modèles proposés. Le résultat le plus important de cette recherche est que la détermination des lieux d’inspection le long d’un processus de fabrication à différentes périodes avec la prise en compte d’impact des activités de maintenance préventive sur le taux de production défectueuses se traduit par une amélioration significative de la performance du système de production
Part Quality Inspection Planning (PQIP) is a significant problem in multi-stage manufacturing systems. Because of an existing strong impact of Preventive Maintenance (PM) activities on the defective production rate (which is the main input of the PQIP), developing an integrated planning for the part quality inspection and PM protects system from a local optimum. This thesis presents mixed-integer linear programming models for the integrated planning problem of the part quality inspection and PM activities in a serial multi-stage manufacturing system. The models concurrently determine the right time and place for performing the above-mentioned activities while the stages are deteriorating. These two decisions are made while the models are to minimize the total cost (including the production, PM, inspection, scrap, repair, and the penalty of shipped defective items) and maximize system productivity. Notably, the system productivity is formulized as a non-linear measure, and then it is linearized by the piecewise linear approximation technique. In addition, the uncertainty about the estimation of cost components and demand is handled by a robust possibilistic approach. A numerical example and a real case study are investigated to validate and verify the proposed models. The most important result of this research is that the determination of inspection locations along a manufacturing line in different periods of time regarding the impact of preventive maintenance activities on defective production probability results in a more efficient system

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Radvar-Esfahlan, Hassan. „Fixtureless geometric inspection of nonrigid parts using "generalized numerical inspection fixture"“. Mémoire, École de technologie supérieure, 2014. http://espace.etsmtl.ca/1294/1/RADVAR_ESFAHLAN_Hassan.pdf.

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Aujourd’hui les pièces mécaniques de forme libre et qui sont souples (non rigides) sont fréquentes dans les industries automobile et aéronautique. Ces pièces possèdent des formes significativement différentes à l'état libre que leurs formes nominales, telles que définies dans un modeleur numérique, en raison de leurs variations dimensionnelles et géométriques, l’effet de la gravité et les contraintes résiduelles induites par le procédé de fabrication. Pour l'inspection géométrique de ces pièces flexibles, des appareils d'inspection spécialisés tel que les gabarits de conformation, en combinaison avec les machines à mesure tridimensionnelle (MMT) et/ou des dispositifs d'acquisition de données optiques (scanners) sont utilisés. Ce qui se traduit immanquablement par des coûts et des délais additionnels qui se traduisent par une carence de compétitivité pour l’industrie. L'objectif de cette thèse est de faciliter l'inspection dimensionnelle et géométrique des composants flexibles à partir d'un nuage de points sans l'aide d’un gabarit ou autre opération de conformation secondaire. Plus précisément, nous visons à développer une méthodologie pour localiser et quantifier les défauts de profil dans le cas des coques minces qui sont typiques pour les industries aéronautique et automobile. La méthodologie présentée est basée sur le fait que la distance géodésique entre deux points d'une forme demeure invariante au cours d'une déformation isométrique (absence d’étirement, stretch). Cette étude développe donc la théorie générale, les méthodes et outils pour une métrologie des pièces non rigides en se basant sur l’hypothèse d’une déformation isométrique. Nous avons ainsi développé une méthode originale que nous avons nommée ‘Gabarit d'Inspection Numérique Généralisée (GNIF)’. C’est une méthodologie robuste qui utilise les découvertes et technologies récemment développées en géométrie métrique et algorithmique. Les techniques de réduction dimensionnelle non linéaire sont employées pour identifier les meilleures correspondances entre deux sets de points (CAD et nuage mesuré). Finalement, la méthode des éléments finis est employée en post-traitement pour ‘caler’ les deux nuages de points et produire un état numérique ‘virtuel’ d’une opération de conformation pour atteindre le but du projet qui est de développer une approche générale de l'inspection géométrique sans gabarit pour les pièces non rigides. La validation et l’exploration des performances métrologiques de notre approche sont réalisées sur des composants typiques de l’industrie.

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Tam, Shu-ming, und 譚樹明. „Inspection of machined parts by measuring inertial properties“. Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B31237708.

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Bücher zum Thema "Part Inspection"

FEDERAL AVIATION ADMINISTRATION. FAA DAR, DAS, DOA, and SFAR part 36 directory. [Washington, D.C.?]: U.S. Dept. of Transportation, Federal Aviation Administration, 1996.

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United States. Food Safety and Inspection Service., Hrsg. Meat and poultry inspection regulations (as reprinted from 9 CFR part 200 to end). [Washington, DC]: U.S. Dept. of Agriculture, Food Safety and Inspection Service, 2004.

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United States. Agricultural Marketing Service. Poultry Programs. Regulations governing the inspection of eggs (Egg Products Inspection Act): 7 CFR part 57 : effective August 27, 1999. Washington, D.C: U.S. Dept. of Agriculture, Marketing and Regulatory Programs, Agricultural Marketing Service, Poultry Programs, 1999.

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J, Iannello C., und John F. Kennedy Space Center, Hrsg. Evaluation of cable harness post-installation testing: Part B. Kennedy Space Center, FL: National Aeronautics and Space Administration, Kennedy Space Center, 2011.

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United States. Food Safety and Inspection Service. Meat and Poultry Inspection Regulations (As reprinted from 9 CFR Part 200 to End), January 2010. S.l: s.n., 2010.

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Spencer, Rosalyn. The inspection of nursery education inspection report [for] Burley Park Early Years Centre, Burley, Leeds ...: Date of inspection 4/9/97. [London]: Ofsted, 1997.

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Ford, Ian. Inspection: Part Two. Independently Published, 2018.

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Ford, Ian. Inspection: Part One. Independently Published, 2017.

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Ford, Ian. Inspection: Part One and Two. Independently Published, 2018.

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Ten CFR Part 52 Construction Inspection Program Framework Document. USGOV, 2004.

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Buchteile zum Thema "Part Inspection"

Seiß, Sebastian, Markus Boden, Jürgen Melzner, Yuan Zheng, Delval Thibaut und Rayan El Chamaa. „Ontology-Based Construction Inspection Planning: A Case Study of Thermal Building Insulation“. In CONVR 2023 - Proceedings of the 23rd International Conference on Construction Applications of Virtual Reality, 824–36. Florence: Firenze University Press, 2023. http://dx.doi.org/10.36253/10.36253/979-12-215-0289-3.82.

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Poor construction quality is one of the most significant challenges for the construction industry. However, failures can be avoided or minimized by inspections based on detailed quality inspection plans as a part of quality assurance. Therefore, structured and project-specific planning of inspection plans is required to provide inspectors with the right information. Nevertheless, inspection planning is mainly manual, dependent on the individual’s experience and high level of effort. As a result, inspection planning is often neglected and limited to providing general checklists that often lack semantically rich descriptions and are unspecific concerning individual project requirements. Furthermore, proper planning of inspections requires multiple information sources, such as building design, schedules, contractual and supplier guidelines, and standards, all of which must be provided or linked via an information model. Current research lacks an adequate formalized knowledge model to provide the knowledge-driven inspection planning process with the necessary domain knowledge to support inspection planning with heterogeneous information defined in isolated systems. Therefore, this paper extends the Ontology for Construction Quality Assurance (OCQA) with the OCQA-Thermal Insulation (OCQA-TI) to formalize thermal insulation inspection planning knowledge. The OCQA offers a new linked data model that provides explicit knowledge of quality inspection planning. The development of the OCQA-TI follows the Linked Open Terms (LOT) methodology and is implemented using the Web Ontology Language (OWL). The proposed ontology is evaluated using various approaches, including automatic consistency checking, answering competency questions, and criteria-based evaluation. The results indicate that the OCQA-TI can provide inspectors with relevant inspection planning knowledge and integrate various related information streams, thus providing a more comprehensive and efficient approach to insulation inspection planning. The functionality of OCQA-TI enables the fulfillment of increased sustainability and energy efficiency requirements by providing insulation inspection knowledge

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PHAN, Nguyen Duy Minh, Yann QUINSAT und Claire LARTIGUE. „Simulation of Laser-Sensor Digitizing for On-Machine Part Inspection“. In Lecture Notes in Mechanical Engineering, 301–11. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-45781-9_31.

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Patel, P. M., S. K. Lau und D. P. Almond. „Contrast Analysis in Thermal Wave Materials Inspection. Part I: Pulsed Excitation“. In Photoacoustic and Photothermal Phenomena III, 235–37. Berlin, Heidelberg: Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-540-47269-8_60.

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Patel, P. M., S. K. Lau und D. P. Almond. „Contrast Analysis in Thermal Wave Materials Inspection. Part II: Periodic Excitation“. In Photoacoustic and Photothermal Phenomena III, 238–40. Berlin, Heidelberg: Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-540-47269-8_61.

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Costa, Carlos M., Joana Dias, Rui Nascimento, Cláudia Rocha, Germano Veiga, Armando Sousa, Ulrike Thomas und Luís Rocha. „Inspection of Part Placement Within Containers Using Point Cloud Overlap Analysis for an Automotive Production Line“. In Flexible Automation and Intelligent Manufacturing: Establishing Bridges for More Sustainable Manufacturing Systems, 677–86. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-38241-3_76.

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Mimra, Christopher, Vincent Krein, Racim Radjef, Bronwyn Fox und Peter Middendorf. „Detection of Gaps and Overlaps in Laser Line Triangulation Data of Dry Fibre Tape Layups Using Image Projection“. In Advances in Automotive Production Technology – Towards Software-Defined Manufacturing and Resilient Supply Chains, 253–65. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-27933-1_24.

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AbstractA major cost driver in the production of carbon composite parts is the quality inspection, which to this day relies on manual investigation by a trained worker. Gaps and overlaps in the layups are to be detected because they are proven to be detrimental towards the mechanical properties of the final part. In recent works, laser line triangulation sensors have been applied to inspect layups of prepreg tapes and non-crimp fabric material. These sensors create a 3D point cloud of the specimens surface. This is then evaluated by conversion into a grey-scale image and a subsequent image processing algorithm. However, the most commonly used algorithms fail to differentiate between defects and small, acceptable irregularities, such as welding spots, slits and single fibres which stick out.The aim of this research is to develop a reliable evaluation method for scans of dry fibre tape layups. An overview over the different groups of algorithms is provided, image projection is selected and compared to algorithms which have been proven to work best on pre-pregs. While the common algorithms fail to classify a test set of dry fibre specimen, image projection can reach a true positive rate of 100% and a false positive rate of 19%. The proposed setup can be a centrepiece of a future in-line quality inspection system for dry fibre layups which has potential for a significant decrease of the manufacturing costs.

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Suzuki, Hiromasa, Xiangning Mao und Yutaka Ohtake. „A Method for Void Inspection in X-ray CT Images Based on Golden Part Generated from a Set of Accepted Parts“. In Advances in Intelligent Systems and Computing, 907–10. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-63403-2_82.

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Dean, Joan FitzPatrick, und Radvan Markus. „The Internationalist Dramaturgy of Hilton Edwards and Micheál mac Liammóir“. In Cultural Convergence, 15–46. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-57562-5_2.

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Abstract In part because the Gate explored an experimental dramaturgy, its artistic directors Micheál mac Liammóir and Hilton Edwards often wrote, spoke and advocated for a drama that could move beyond realism. The analysis of Hilton Edwards’s dramatic commentary reaches from his early articles on dramaturgy right up to his encounter with the Berliner Ensemble in 1956 that influenced Edwards’s most elaborate statement on drama, The Mantle of Harlequin (1958). An important part of Edwards’s vision was his cosmopolitanism, his refusal to view drama within a restricted national framework. Nationality, on the other hand, was more important for the self-styled Irishman Micheál mac Liammóir. On close inspection, however, we find that his outlook did not differ much from Edwards’s. Mac Liammóir’s main concern was for Irish(-language) drama to absorb elements from abroad, to escape the straitjacket of Abbey realism and to become distinctive in a global context.

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Mimra, Christopher, Boris Eisenbart, Stefan Carosella und Peter Middendorf. „Combination of the Scanning and the Polar Measuring Method for the Defect Detection in Dry Fibre Layups Using an Eddy Current Sensor“. In Advances in Automotive Production Technology – Towards Software-Defined Manufacturing and Resilient Supply Chains, 243–52. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-27933-1_23.

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AbstractGaps, fibre misalignment and foreign objects in dry fibre tape layups are detrimental towards the final mechanical properties of carbon fibre composite parts. Eddy current sensors can be used to inspect layups for the named defects. In comparison to optical inspection methods, eddy current measurements are capable of inspecting not only the top layer but multiple plies at once. In the literature, two different methods have been proposed for this inspection. One is the scanning method, where the sensor is moved over the specimen and creates a grey-scale image. The pixel brightness correlates with the layup’s local electrical conductivity. The other method for the local inspection is the polar method, where the sensor is rotated on a single spot to detect the fibre orientation. In this work, both methods were conducted with the same inspection system, which is based on a collaborative robotic arm. It has been shown that the scanning method can identify gaps and foreign objects out of metal. The fibre orientation can be identified by the rotational method with a precision of 0.16$$^{\circ }$$ ∘ . The exact positioning of the probe remains the main challenge for this inspection system. However, a combination of both methods promises to provide a reliable inspection method for the most common defect in a dry fibre layup.

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Konferenzberichte zum Thema "Part Inspection"

Wells, Lee J., Mohammed S. Shafae und Jaime A. Camelio. „Automated Part Inspection Using 3D Point Clouds“. In ASME 2013 International Manufacturing Science and Engineering Conference collocated with the 41st North American Manufacturing Research Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/msec2013-1212.

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Ever advancing sensor and measurement technologies continually provide new opportunities for knowledge discovery and quality control (QC) strategies for complex manufacturing systems. One such state-of-the-art measurement technology currently being implemented in industry is the 3D laser scanner, which can rapidly provide millions of data points to represent an entire manufactured part’s surface. This gives 3D laser scanners a significant advantage over competing technologies that typically provide tens or hundreds of data points. Consequently, data collected from 3D laser scanners have a great potential to be used for inspecting parts for surface and feature abnormalities. The current use of 3D point clouds for part inspection falls into two main categories; 1) Extracting feature parameters, which does not complement the nature of 3D point clouds as it wastes valuable data and 2) An ad-hoc manual process where a visual representation of a point cloud (usually as deviations from nominal) is analyzed, which tends to suffer from slow, inefficient, and inconsistent inspection results. Therefore our paper proposes an approach to automate the latter approach to 3D point cloud inspection. The proposed approach uses a newly developed adaptive generalized likelihood ratio (AGLR) technique to identify the most likely size, shape, and magnitude of a potential fault within the point cloud, which transforms the ad-hoc visual inspection approach to a statistically viable automated inspection solution. In order to aid practitioners in designing and implementing an AGLR-based inspection process, our paper also reports the performance of the AGLR with respect to the probability of detecting specific size and magnitude faults in addition to the probability of a false alarms.

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Choi, Young Jin, Jun Sang Cho, Dong Woo Kim und Jung Sik Kong. „Implementation of image-based inspection technology for bridges“. In IABSE Conference, Seoul 2020: Risk Intelligence of Infrastructures. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2020. http://dx.doi.org/10.2749/seoul.2020.265.

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<p>Many infrastructures are conducting smart inspections using drones and various inspection equipment. Bridge inspections are still mostly performed by manpower, and the demand for unmanned equipment-based inspections to improve these traditional methods is increasing. In this research, a drone was used to photograph the entire view of the bridge, and rail, wire-cam were used to check the inspection blind spots that occur during inspection by personnel. A 360- degree camera was used in the part accessible to the inspector. Based on the images obtained through all technologies, a three-dimensional road view of the inspection bridge was constructed. The image-based inspection result is intuitive for both managers and inspectors, so it will improve convenience and efficiency during maintenance.</p>

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Knopf, George K., und Jonathan Kofman. „Multisensor fusion for geometric-part inspection“. In Photonics East '99, herausgegeben von George K. Knopf, Patrick F. Muir und Peter E. Orban. SPIE, 1999. http://dx.doi.org/10.1117/12.371188.

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Rofalis, Nikolaos, Anders S. Olesen, Michael L. Jakobsen und Volker Kruger. „Fast visual part inspection for bin picking“. In 2016 IEEE International Conference on Imaging Systems and Techniques (IST). IEEE, 2016. http://dx.doi.org/10.1109/ist.2016.7738261.

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Doughty, Samuel. „Least Squares Applied to Circular Part Inspection“. In International Off-Highway & Powerplant Congress & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1995. http://dx.doi.org/10.4271/952157.

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Xiong, Hanwei, Jun Xu, Chenxi Xu und Ming Pan. „Fixtureless nonrigid part inspection using depth cameras“. In International Symposium on Optoelectronic Technology and Application 2016, herausgegeben von Sen Han und JiuBin Tan. SPIE, 2016. http://dx.doi.org/10.1117/12.2247537.

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Shilling, K. Meghan, und Thomas R. Kurfess. „Using White Light Interferometry for Mesoscale Part Inspection“. In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-42328.

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Measurement of LIGA parts is critical for characterization and understanding of process variables. Traditionally, measurement using coordinate metrology consists of collecting data points from all of the surfaces of a part (e.g., three dimensional data) and comparing these points with target geometry as defined in a CAD file. Systems such as coordinate measurement machines and laser scanners are often used to collect the data. Unfortunately, three dimensional data collection has proven to be quite difficult for mesoscale parts, such as those created using the LIGA process. The inspection techniques used for larger parts cannot be used for parts of this scale because of physical limitations or poor resolution. This paper targets the use of white light interferometry for the analysis of micro-components produced using the LIGA and stereolithography processes. Both of these processes often create parts that are designed to have a constant cross section with planar top and bottom surfaces. Assuming this geometric relationship holds true, the analysis of just the top or bottom surface of the part can provide useful information pertaining to process capability and part geometry. White light interferometry is well-suited to the measurement of these planar surfaces. This paper will discuss techniques used to analyze two dimensional part parameters using white light interferometry in combination with image processing techniques. Several case studies are included to show the abilities of the measurement and processing methods.

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Harding, Kevin G. „Large part metrology challenges and lessons learned“. In Dimensional Optical Metrology and Inspection for Practical Applications IX, herausgegeben von Song Zhang und Kevin G. Harding. SPIE, 2020. http://dx.doi.org/10.1117/12.2559697.

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Mack, Chris A., Frieda Van Roey und Gian Lorusso. „Unbiased roughness measurements: subtracting out SEM effects, part 3“. In Metrology, Inspection, and Process Control for Microlithography XXXIII, herausgegeben von Ofer Adan und Vladimir A. Ukraintsev. SPIE, 2019. http://dx.doi.org/10.1117/12.2515898.

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Yukawa, Toshihiro, Masayuki Suzuki, Yuichi Satoh und Hideharu Okano. „Magnetic Part Design of Pipe-Surface Inspection Robot“. In IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics. IEEE, 2006. http://dx.doi.org/10.1109/iecon.2006.347281.

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Berichte der Organisationen zum Thema "Part Inspection"

Brauer, Douglas C., Daniel Henry und George A. Matzkanin. ACE/AACE Inspection and Analysis Handbook. Part 1. Management. Fort Belvoir, VA: Defense Technical Information Center, Juni 1985. http://dx.doi.org/10.21236/ada210047.

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Brauer, Douglas C., Daniel Henry und George A. Matzkanin. ACE/AACE Inspection and Analysis Handbook. Part 2. Engineering. Fort Belvoir, VA: Defense Technical Information Center, Juni 1985. http://dx.doi.org/10.21236/ada210048.

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Brauer, Douglas C., Daniel Henry und George A. Matzkanin. ACE/AACE Inspection and Analysis Handbook. Part 3. Profiling. Fort Belvoir, VA: Defense Technical Information Center, Juni 1985. http://dx.doi.org/10.21236/ada210049.

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Bond, Leonard J., und John R. Bowler. Advance High Temperature Inspection Capabilities for Small Modular Reactors: Part 1 - Ultrasonics. Office of Scientific and Technical Information (OSTI), August 2017. http://dx.doi.org/10.2172/1417974.

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Phillips, Jake. Understanding the impact of inspection on probation. Sheffield Hallam University, 2021. http://dx.doi.org/10.7190/shu.hkcij.05.2021.

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This research sought to understand the impact of probation inspection on probation policy, practice and practitioners. This important but neglected area of study has significant ramifications because the Her Majesty’s Inspectorate of Probation has considerable power to influence policy through its inspection regime and research activities. The study utilised a mixed methodological approach comprising observations of inspections and interviews with people who work in probation, the Inspectorate and external stakeholders. In total, 77 people were interviewed or took part in focus groups. Probation practitioners, managers and leaders were interviewed in the weeks after an inspection to find out how they experienced the process of inspection. Staff at HMI Probation were interviewed to understand what inspection is for and how it works. External stakeholders representing people from the voluntary sector, politics and other non-departmental bodies were interviewed to find out how they used the work of inspection in their own roles. Finally, leaders within the National Probation Service and Her Majesty’s Prisons and Probation Service were interviewed to see how inspection impacts on policy more broadly. The data were analysed thematically with five key themes being identified. Overall, participants were positive about the way inspection is carried out in the field of probation. The main findings are: 1. Inspection places a burden on practitioners and organisations. Practitioners talked about the anxiety that a looming inspection created and how management teams created additional pressures which were hard to cope with on top of already high workloads. Staff responsible for managing the inspection and with leadership positions talked about the amount of time the process of inspection took up. Importantly, inspection was seen to take people away from their day jobs and meant other priorities were side-lined, even if temporarily. However, the case interviews that practitioners take part in were seen as incredibly valuable exercises which gave staff the opportunity to reflect on their practice and receive positive feedback and validation for their work. 2. Providers said that the findings and conclusions from inspections were often accurate and, to some extent, unsurprising. However, they sometimes find it difficult to implement recommendations due to reports failing to take context into account. Negative reports have a serious impact on staff morale, especially for CRCs and there was concern about the impact of negative findings on a provider’s reputation. 3. External stakeholders value the work of the Inspectorate. The Inspectorate is seen to generate highly valid and meaningful data which stakeholders can use in their own roles. This can include pushing for policy reform or holding government to account from different perspectives. In particular, thematic inspections were seen to be useful here. 4. The regulatory landscape in probation is complex with an array of actors working to hold providers to account. When compared to other forms of regulation such as audit or contract management the Inspectorate was perceived positively due to its methodological approach as well as the way it reflects the values of probation itself. 5. Overall, the inspectorate appears to garner considerable legitimacy from those it inspects. This should, in theory, support the way it can impact on policy and practice. There are some areas for development here though such as more engagement with service users. While recognising that the Inspectorate has made a concerted effort to do this in the last two years participants all felt that more needs to be done to increase that trust between the inspectorate and service users. Overall, the Inspectorate was seen to be independent and 3 impartial although this belief was less prevalent amongst people in CRCs who argued that the Inspectorate has been biased towards supporting its own arguments around reversing the now failed policy of Transforming Rehabilitation. There was some debate amongst participants about how the Inspectorate could, or should, enforce compliance with its recommendations although most people were happy with the primarily relational way of encouraging compliance with sanctions for non-compliance being considered relatively unnecessary. To conclude, the work of the Inspectorate has a significant impact on probation policy, practice and practitioners. The majority of participants were positive about the process of inspection and the Inspectorate more broadly, notwithstanding some of the issues raised in the findings. There are some developments which the Inspectorate could consider to reduce the burden inspection places on providers and practitioners and enhance its impact such as amending the frequency of inspection, improving the feedback given to practitioners and providing more localised feedback, and working to reduce or limit perceptions of bias amongst people in CRCs. The Inspectorate could also do more to capture the impact it has on providers and practitioners – both positive and negative - through existing procedures that are in place such as post-case interview surveys and tracking the implementation of recommendations.

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Heggen, Hans Olav. PR186-215102-R01 Subsea Pipeline Risk-Based Inspection Benchmarking. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), September 2022. http://dx.doi.org/10.55274/r0012237.

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There are many standards, recommended practices (RP) and guidelines available for subsea pipe-line integrity management (PIM). In all of these, inspection is a key part of managing the integrity of subsea pipelines. However, detailed coverage of risk-based inspection (RBI) and detailed inspection planning is limited in these standards, RPs and guidelines; optimization of inspection and inspection frequency is generally determined at operator's discretion unless strictly regulated by authorities. Thus, there is a need to identify operator best practices and attempt to define a unified decision-making process to optimize inspection and inspection frequencies. This document: � Summarizes the most relevant standards, RPs and guidelines with respect to RBI � Reports the findings from answered questionnaires and interviews with operators, and � Identifies potential paths forward to reach a unified inspection planning best practice

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Kumar, Vinod. PR-164-114512-R02 CRA Weld Overlay Pipes for Subsea Application Report on Phase 2 - Part 1 Investigations. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), Oktober 2014. http://dx.doi.org/10.55274/r0010100.

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PRCI commissioned TWI to carry out a project for developing guidelines for qualification of CRA weld overlay pipes with a scope as specified in PRCI Project MATS-1-1 CRA Weld Overlay Pipes for Subsea Application. TWI completed phase 1 of this project during 2011-2013 and the results of these investigations were submitted to PRCI via report Catalogue No. PR-164-114512-R01. TWI carried out further investigation as Phase 2, addressing the criticalities of the manufacture and inspection of full length weld overlay pipes. This report describes the details of the manufacture of pipe samples, inspection, testing, and the results obtained.

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Duncan. L52005 Reliable Diagnosis of SCC During Field Inspection. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), März 2003. http://dx.doi.org/10.55274/r0011252.

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Direct assessment (DA) is one method pipeline companies use to assess the extent and severity of stress corrosion cracking and other defects on their pipeline system. Successful integrity management of a pipeline is dependent, in part, on proper interpretation of the defects encountered in the DA program. The objective of this project was to prepare a document containing a compilation of types of crack-like magnetic-particle testing (MT) or visual indications found on underground transmission pipelines for the purpose of proper interpretation of their type and cause. Pipe samples containing various types of defects were inspected by means of black and MT, optically photographed, and then metallographically sectioned and photographed. The MT photographs and metallographic photomicrographs were compiled in an Access Database.

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Author, Unknown. DTRS56-02-T-0002 Pipeline Inspection Technologies Demonstration Report. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), Mai 2001. http://dx.doi.org/10.55274/r0011928.

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The purpose of this assessment is to help identify promising inspection technologies best suited for further development as part of an integrated teaming effort between the robotic platform and sensor developers. This document is not intended to provide a detailed analysis of each technology's performance or to rate their performance relative to one another. Technologies discussed include: Shear Horizontal Electromagnetic Acoustic Transducer (EMAT) Remote Field Eddy Current (RFEC) Collapsible Remote Field Eddy Current (CRFEC) Nondestructive Ultrasonic Measurement Permanent Magnet Eddy Current Multi-purpose Deformation Sensor Dual Magnetization MFL Guided Wave Ultrasonics

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Varisco, Andrea Edoardo, und Mark Bromley. Good Practice Guide on Post-Shipment On-site Inspections of Military Materiel. Stockholm International Peace Research Institute, August 2022. http://dx.doi.org/10.55163/riai5755.

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In order to prevent the diversion of exported military materiel, an increasing number of states have conducted post-shipment on-site inspections (i.e. physical inspections of exported military materiel on the territory of the importing state) or have introduced measures to allow for them to take place. Several multilateral instruments have produced guidance documents on arms export controls that include provisions relevant to requiring or conducting post-shipment on-site inspections and this topic has been one of the main focuses of the German presidency of the Eighth Conference of States Parties to the Arms Trade Treaty. This SIPRI Good Practice Guide is aimed at states that are in the process of developing post-shipment on-site inspections or are considering their future adoption. It highlights a series of good practices that states can apply when developing and implementing this tool and follows four steps that are part of a post-shipment on-site inspection process: (a) adopting on-site inspections, (b) requiring on-site inspections, (c) conducting on-site inspections, and (d) follow-on steps after on-site inspections. The Good Practice Guide draws from experience of states that have conducted post-shipment on-site inspections, relevant guidance and policy documents, and the work done by SIPRI on this topic.

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