Auswahl der wissenschaftlichen Literatur zum Thema „Ground-drawings“
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Zeitschriftenartikel zum Thema "Ground-drawings"
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Gudelj, Jasenka, und Petar Strunje. „Palladio i Dioklecijanova palača: renesansni arhitektonski crteži splitskog sklopa“. Ars Adriatica, Nr. 5 (01.01.2015): 127. http://dx.doi.org/10.15291/ars.522.
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The article analyses the drawings of Diocletian’s Palace at Split which had belonged to the Renaissance architect Andrea Palladio and which represent the only surviving Renaissance drawings of the most important late antique architectural structure on the east Adriatic coast. Today, they are housed at the Royal Institute of British Architects in London and in the Devonshire collection, Chatsworth. A detailed analysis of the drawing technique, the paper, the handwriting and the style of the drawings, have confirmed the opinion of the scholars who argued that the ground-plan of the emperor’s mausoleum was drawn by an unknown artistand that Palladio added his sketches at a later point; the drawing of the mausoleum’s portal was also made by the same artist. Both drawings were most probably produced in Vicenza during the last quarter of the sixteenthcentury. The ground-plan of the palace itself was drawn by Palladio on the basis of an earlier source. It is likely that a version of the palace ground-plan whichhad served as a model to Palladio remained at Split and that the drawings published by Daniele Farlati in the eighteenth century relied on it rather than on those produced by Johann Fischer von Erlach, as it was argued until now.
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Gudelj, Jasenka, und Petar Strunje. „Palladio i Dioklecijanova palača: renesansni arhitektonski crteži splitskog sklopa“. Ars Adriatica, Nr. 5 (01.01.2015): 127. http://dx.doi.org/10.15291/ars.935.
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The article analyses the drawings of Diocletian’s Palace at Split which had belonged to the Renaissance architect Andrea Palladio and which represent the only surviving Renaissance drawings of the most important late antique architectural structure on the east Adriatic coast. Today, they are housed at the Royal Institute of British Architects in London and in the Devonshire collection, Chatsworth. A detailed analysis of the drawing technique, the paper, the handwriting and the style of the drawings, have confirmed the opinion of the scholars who argued that the ground-plan of the emperor’s mausoleum was drawn by an unknown artist and that Palladio added his sketches at a later point; the drawing of the mausoleum’s portal was also made by the same artist. Both drawings were most probably produced in Vicenza during the last quarter of the sixteenth century. The ground-plan of the palace itself was drawn by Palladio on the basis of an earlier source. It is likely that a version of the palace ground-plan which had served as a model to Palladio remained at Split and that the drawings published by Daniele Farlati in the eighteenth century relied on it rather than on those produced by Johann Fischer von Erlach, as it was argued until now.
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Shevchenko, G. G., L. A. Shchenyavskaya und M. Ya Bryn. „Ground laser scanning of the flyover through the railway for the purposes of its reconstruction“. BRIСS Transport 2, Nr. 4 (25.12.2023): 1–6. http://dx.doi.org/10.46684/2023.4.3.
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The article presents the possibility of obtaining geometric parameters of an flyover passing through a railway using ground–based laser scanning technology using modern equipment Leica Scan Station C10. The practical significance of using the chosen method lies in the fastest and most convenient scanning of the object, reducing production costs and, of course, high accuracy of the spatial data obtained necessary for the reconstruction of the flyover. A study of the use of ground-based laser scanning technology to obtain spatial data of the flyover was conducted, as a result of which the advantages of the chosen method were revealed. Also, based on the data obtained, a comprehensive three-dimensional model and two-dimensional drawings were prepared, such as the facade of the flyover, its plan and drawings of transverse profiles. Thanks to the compiled drawings and models of the bridge structure passing through the railway, the design work on the reconstruction of the facility has become much easier and more efficient. The presented experience confirms the need to introduce modern technologies, namely ground-based laser scanning in survey activities in order to develop and detail design solutions for the reconstruction of flyovers.
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Gao, Chutian, Ming Guo, Zexin Fu, Dengke Li, Xian Ren, Mengxi Sun, Yuquan Zhou und Peng Cheng. „Representative Construction Engineering Drawings Combining SLAM and Ground-Based LiDAR“. Journal of Physics: Conference Series 2112, Nr. 1 (01.11.2021): 012017. http://dx.doi.org/10.1088/1742-6596/2112/1/012017.
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Abstract Obtaining architectural engineering drawings is a crucial aspect of upgrading and repairing structures. Traditional elevation measuring is ineffective and results in a poor rate of restoration. The current building elevation measurement solutions based on 3D scanning technology all obtain building 3D point cloud data from a single type of laser scanner. These two methods can’t get both indoor and outdoor scenes at the same time. This paper presents a scanning strategy that combines SLAM with Ground-based LiDAR to solve this problem. The point cloud data for the building’s indoor and outdoor scenes are obtained independently, and the Ground-based LiDAR point cloud data is registered locally using the iterative closest point(ICP) algorithm. The SLAM point clouds and the Ground-based LiDAR point clouds are then registered as a whole to develop an overall model of the building using point constrained error equations. For various reasons, the building can be trimmed into a planar point cloud model depending on the application. Finally, engineering drawings for the construction of the building can be drawn. The method’s viability was demonstrated by using it in a 3D scanning project of a scenic site in Beijing. This technology improves model information interpretability, scanning efficiency, and provides powerful data assistance for building rehabilitation and repair. It is extremely important in the disciplines of urban planning, rehabilitation, and historic preservation. After performing a more optimal preprocessing, more than 90% classification accuracy was achieved across 18 low-power consumer devices for scenarios in which the in-band features-to-noise ratio (FNR) was very poor.
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Hudson, Anna. „figure ground: the paintings and drawings of Ivan Eyre (review)“. University of Toronto Quarterly 76, Nr. 1 (2007): 597–99. http://dx.doi.org/10.1353/utq.2007.0117.
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Wilson, David J. „Desert Ground Drawings in the Lower Santa Valley, North Coast of Peru“. American Antiquity 53, Nr. 4 (Oktober 1988): 794–804. http://dx.doi.org/10.2307/281119.
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New data are presented on prehispanic ground drawings discovered and mapped during the 1979-1980 settlement-pattern research in the Santa Valley region, north coast of Peru. Among the drawings, which appear to date to the Early Suchimancillo/Gallinazo time period (ca. B.C./A.D. to A.D. 200), are a number of naturalistic figures-including humans, sierra-related llamas and condors, and a jungle-related (possible) cayman. These figures, and other lines of evidence such as rock-walled corral enclosures, suggest the existence of a strong ideological focus on sierra-related animals that probably reinforced intensive coast-sierra socioeconomic relations involving the use of llama pack trains.
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Park, Jin-Ho, und Lionel March. „Space architecture: Schindler's 1930 Braxton-Shore project“. Architectural Research Quarterly 7, Nr. 1 (März 2003): 51–62. http://dx.doi.org/10.1017/s1359135503001982.
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Rudolph Michael Schindler (1887–1953) designed a beach house for Henry Braxton and Viola Brothers Shore in 1930. The house was to have been sited on Ocean Front Walk, Venice, Los Angeles [1]. It was never built, but remains a paper project. In the architectural drawings archives at University of California, Santa Barbara, there are both sketch plans and detailed plans for four levels: the ground floor, the main floor, the balcony floor and the roof level. There are drawings for each of the four elevations as well as sections. Constructional details are provided on five sheets. All told there are 13 extant drawings. In his signature upper case, Schindler typed a brief written description of the house [Table 1].
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Vaníček, Ivan, Jan Pruška und Daniel Jirásko. „BIM – AN APPLICATION IN GEOTECHNICAL ENGINEERING“. Acta Polytechnica CTU Proceedings 29 (20.01.2021): 25–29. http://dx.doi.org/10.14311/app.2020.29.0025.
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BIM model represents a significant step forward within the frame of the overall process of construction. This new approach goes from the assumption that up to date praxis, which is represented by different sets of 2D or 3D drawings of drawings, technical reports and calculations does not cover all problems of the above mentioned overall process of construction. Basic principles of BIM will be discussed, not only from the view of 3D models of the structure design. The utilization of the BIM model during life time structure expectancy will be stressed - from the initial phase (investigation, design) via the phase of structure execution, maintenance and ending with structure demolition at the end of life time expectancy. Specificity of the geotechnical engineering is in this entire process fundamental, as each construction is in the interaction with ground. 3D model of the ground (geotechnical model) is therefore one of the basic individual parametric elements from which BIM model consist. Ground model is time dependant as geological profile and geotechnical properties are refinement during each phase of ground investigation as well during geotechnical structure construction. Final 3D Ground model together with 3D model of geotechnical structure represents a first significant step of the overall BIM model. In the case of underground or earth structures such output can be primordial element of the BIM model with parametric elements around it. Finally some other possibilities or practical applications are mentioned.
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Massey, Ian. „Keith Vaughan: Figure and Ground: Drawings, Prints and Photographsedited by Colin Cruise“. Visual Culture in Britain 15, Nr. 2 (04.05.2014): 218–20. http://dx.doi.org/10.1080/14714787.2014.928150.
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Yarygin, Sergey, und Nikolay Ilderyakov. „Petroglyphs of “Eastern” Appearance in the Kairakkol Mountains and the Aksu River Valley“. Nizhnevolzhskiy Arheologicheskiy Vestnik, Nr. 1 (Juni 2022): 193–207. http://dx.doi.org/10.15688/nav.jvolsu.2022.1.10.
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The article is devoted to the publication of new monuments of rock art in the Kairakkol mountains and the Aksu river valley, located in the Aksu district of the Almaty region of the Republic of Kazakhstan. Geographically, the mountains are part of the Dzhungar Alatau system and are located in the eastern Semirechye. A description of three engravings and a group of three clusters of geometric signs is given. The drawings were discovered during exploration work in the vicinity of the Late Pazyryk burial ground of Tausamaly in 2020 and 2021 in the western spurs of the mountain Kairakkol, rocky outcrops of the Suuk plateau, and the mountain valley of the Aksu river. As a result of the area examination, it was possible to record a large number of petroglyphs dating back from the Bronze Age to the ethnographic time. Much of it definitely dates back to the early Iron Age and the Middle Ages. A large group of tamgas and tamga-like signs was found near the burial ground. Several petroglyphs stand out clearly among other petroglyphs, which have pictorial analogies in southern Siberia, eastern regions of Central Asia, and China. The list includes an anthropomorphic figure with a complex hairstyle or in a complex headdress, a rider about a two-horse, and a dragon. They are adjoined by three drawings, including geometric figures (simple lines, circular signs), knockouts of various types and shapes, holes, images of animals, and, in one case, a rider. They form complex compositions of ideogrammatic nature. A comparative historical analysis of the drawings shows the cultural ties of their creators with the nomads of Altai, the Minusinsk Basin, and, possibly, with the tribes of Northern China. The drawings are tentatively dated to the end of the 1st millennium BC or the border of two eras.
Dissertationen zum Thema "Ground-drawings"
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Howser, Greg Warren. „Between Friends“. Digital Commons @ East Tennessee State University, 2011. https://dc.etsu.edu/etd/1293.
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This paper correlates with a Master of Fine Arts graduate thesis exhibition held at Slocumb Galleries in Ball Hall at East Tennessee State University March 21 through 25, 2011. The exhibition contains a mixed media body of work including prints, metal point drawings, and quilts. These works are an exploration showing the artist's voyeuristic studies through line, texture, form, pigment, and wax.
This thesis goes into detail about how the artist came to create this group of art by discussing tools, printmaking processes, encaustic, metal point, and his influences.
Bücher zum Thema "Ground-drawings"
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Cruise, Colin. Keith Vaughan: Figure and ground, drawings, prints and photographs 1935-1962. Bristol: Sansom & Company Ltd. for Aberystwyth University School of Art Museum, 2013.
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Aveni, Anthony F. Between the lines: The mystery of the giant ground drawings of ancient Nasca, Peru. Austin: University of Texas Press, 2000.
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Aveni, Anthony F. Between the lines: The mystery of the giant ground drawings of ancient Nasca, Peru. Austin: University of Texas Press, 2000.
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Aveni, Anthony F. Between the lines: The mystery of the giant ground drawings of ancient Nasca, Peru. Austin: University of Texas Press, 2000.
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Aveni, Anthony F. Between the lines: The mystery of the giant ground drawings of ancient Nasca, Peru. Austin: University of Texas Press, 2000.
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Nascimento, Márcia, und Nuno Costa, Hrsg. Käräjäkivet 03: Mystery on the Desert: The secret of Pampa: the most important astronomical monument of the world. Barcelos, Portugal: Käräjäkivet, 2019.
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Divine, Grace. White Line Drawings of Flowers on Black Ground GRACE DIVINE DRAWINGS. Independently Published, 2020.
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Figure Ground: Paintings And Drawings of Ivan Eyre. Winnipeg Art Gallery, 2005.
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Aveni, Anthony F. Between the Lines: The Mystery of the Giant Ground Drawings of Ancient Nasca, Peru. University of Texas Press, 2000.
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Aveni, Anthony F. Between the Lines: The Mystery of the Giant Ground Drawings of Ancient Nasca, Peru. University of Texas Press, 2015.
Den vollen Inhalt der Quelle findenBuchteile zum Thema "Ground-drawings"
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Dandarova-Robert, Zhargalma, Christelle Cocco, Grégory Dessart und Pierre-Yves Brandt. „Where Gods Dwell? Part II: Embodied Cognition Approach and Children’s Drawings of Gods“. In When Children Draw Gods, 171–87. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-030-94429-2_7.
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AbstractEmpirical demonstrations of the embodied and grounded cognition approach, involving diverse areas and phenomena, have increased exponentially in recent years. However, little research has been done in the religious domain. To the best of our knowledge, no study based on this theoretical framework has explored spatial dimension in pictorial representation of the divine in children’s drawings or in religious art in general. The present study represents the very first attempt to investigate if and how spatiality is involved in the way children depict the divine in their drawings. Drawings collected from four groups of participants (n = 1156, ages 6–15) characterized by different cultural and religious environments: Japanese (Buddhism and Shinto), Russian-Buryat (Buddhism, Shamanism), Russian Slavic (Christian Orthodoxy), and French-speaking Swiss (Catholic and reformed Christianity) were annotated using the Gauntlet annotation tool and then analysed. The main result indicates that children from all four groups generally depict god (the centre of the annotated representation) in the upper part of their drawings. Further testing indicates that the type of composition (for instance, god depicted alone or as standing on the ground where the sky is also depicted) did not serve as a major influence on the child’s placement of god.
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„Edgar Degas and Mary Cassatt: A Comparison of Drawings for Soft-Ground Etchings“. In Facture: Conservation Science Art History Volume 3: Degas. National Gallery of Art, 2017. http://dx.doi.org/10.37862/aaeportal.00206.006.
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Conlee, Christina A. „Ancient Society in Nasca“. In Beyond the Nasca Lines. University Press of Florida, 2016. http://dx.doi.org/10.5744/florida/9780813062020.003.0001.
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This introductory chapter presents background information on the Nasca region and discusses the Nasca Lines, which are geoglyphs (ground drawings) and the feature for which the area is best known. The geoglyphs were created by the people of the Nasca culture, which was just one of many societies in the long prehistory of the region. A short summary of the historical trajectory of the region is given, and the development of the project at La Tiza is detailed. An outline of the book is presented along with a summary of each chapter.
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Shapland, Michael G. „A corpus of lordly tower-naves“. In Anglo-Saxon Towers of Lordship, 34–106. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198809463.003.0003.
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The synthesis presented here is of the twenty-four tower-naves which come from local rather than monastic contexts, the great majority from suspected manorial sites. Most of these towers still stand above ground, although the majority have not previously been the subject of detailed study. A summary of each tower is provided in alphabetical order, together with selected measured drawings produced as part of this study. Their development in the late tenth century is suggested, and it is concluded that these buildings were primarily a phenomenon of the eleventh century, spread across England to a relatively coherent architectural form.
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„Conclusion: "Back to the Rough Ground!"“. In Line Drawings, 181–88. Ithaca, NY: Cornell University Press, 2019. http://dx.doi.org/10.7591/9781501725623-008.
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Djerassi, Carl. „The Pill and Paul Klee“. In This Man’s Pill, 214–43. Oxford University PressOxford, 2001. http://dx.doi.org/10.1093/oso/9780198508724.003.0010.
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Abstract On 30 July 1985, a San Francisco Chronicle front-page article bore the headline, ‘6 Stolen S.F. Museum Drawings Found.’ At that time, the San Francisco Museum of Modern Art, commonly known as SFMOMA, had not yet moved to its elegant new quarters south of Market Street. It still occupied the two top floors of the War Memorial Building, next door to the San Francisco Opera, its main entrance facing golden-domed City Hall across Van Ness Avenue. The War Memorial’s ground floor entrance hall is a rather grand space that is occasionally rented out for anniversary celebrations, weddings, and other private functions. On the less fashionable side of the street, SFMOMA faces some apartment buildings, one of them the abode of a 19-year-old psychology student attending San Francisco State University.
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Tulke, Julia. „Of Silo Dreams and Deviant Houses“. In Buffalo at the Crossroads, 63–86. Cornell University Press, 2020. http://dx.doi.org/10.7591/cornell/9781501749766.003.0004.
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This chapter describes the interior of Marine A, one of Buffalo's many disused grain elevators that is saturated with visual interventions animating the barren space. It talks about small graffiti tags that occupy concrete walls and rusty metal chutes, spray-painted portraits of fantastical creatures wrap around columns, and a sculptural constellation of cogwheels is suspended from the ceiling of a silo shaft. It also mentions a series of chalk drawings depicting a landscape of miniature grain elevators that is connected to the ground by a dense networks of roots. The chapter examines epithets that have been assigned to Buffalo in past eras, which gesture toward Buffalo's economic prowess at the beginning of the twentieth century and later to its state of industrial decline. It captures the poetic melancholia of Buffalo's postindustrial landscape of decay and abandonment.
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Eusterschulte, Anne. „Au fond – am Farbgrund der Zeichnungen. Epilog / Au fond – on the Colour Ground of the Drawings. Epilogue“. In Gezeichnete Evidentia, 272–317. De Gruyter, 2021. http://dx.doi.org/10.1515/9783110760750-013.
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Webb, Heather. „Viewing and Reading Gesture“. In Dante, Artist of Gesture, 1–13. Oxford University PressOxford, 2022. http://dx.doi.org/10.1093/oso/9780192866998.003.0001.
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Abstract Dante’s Commedia is a poem that is densely packed with fine-grained descriptions of gesture and bodily movement; it is for this reason that the poem has lent itself so readily to countless remediations in paintings, drawings, films, and live performances. This introduction prepares the ground for addressing how those gestures render themselves visible, how they, in their particular instantiations, depend on known examples of vices and virtues, how gesture acts in Dante’s Commedia, and how readers can ‘view’ and respond to gesture in Dante. It is necessary to begin with a discussion of what is meant by gesture. Reason and intention distinguish human gestures. This is not to say, however, that Dante is uninterested in the act of reading bodies more broadly. While some gestures are language, working alongside words in the manifold processes of signifying, the Commedia also frequently dwells on legible but not intentionally expressive bodily signs.
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Fend, Mechthild. „Hermetic borderline“. In Fleshing Out Surfaces. Manchester University Press, 2017. http://dx.doi.org/10.7228/manchester/9780719087967.003.0007.
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This chapter focuses on a set of nudes and portraits by Jean-Auguste-Dominique Ingres. It engages with the artist's ambivalent relationship with artistic anatomy and demonstrates the artist's increasing attention to the body's surface achieved through a reduction of modelling of the physical forms. Ingres changed the terms of the fabrication of flesh tones – carnations – and skin became deliberately non-physiological. Critics registered Ingres's peculiar handling of skin and flesh as one of the artist's idiosyncrasies and their writings manifest a gradual shift in the understanding of the body in paint. In Ingres‘ paintings themselves, the established association of flesh and paint was replaced by the alignment of the skin with the images‘ ground, be it canvas or paper in the case of drawings, and of the depicted skin with the polished painterly surface. The final section argues that the suppression of anatomical detail is pushed to the extreme in Ingres‘ portraits of women, resulting in a renunciation of physiognomic paradigms in which a person's exterior is meant to refer to internal qualities and character. Like in his Valpinçon Bather, the concealment of skin goes along with the closure of the interior space.
Konferenzberichte zum Thema "Ground-drawings"
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Saseta Naranjo, Albertina. „Dibujando la Casa Peyrissac“. In LC2015 - Le Corbusier, 50 years later. Valencia: Universitat Politècnica València, 2015. http://dx.doi.org/10.4995/lc2015.2015.680.
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Resumen: Se trata de imaginamos en la piel de un empleado de Le Corbusier al que se le encomienda la misión de pasar a limpio unos croquis relativos al proyecto de una casa. Los croquis mencionados son realizados por Le Corbusier en 1942, durante su estancia en Argel, y hacen referencia a una casa diseñada para una propiedad agrícola cerca de la Montaña Chenoua perteneciente a la familia Peyrissac. Disponemos de dichos croquis gracias a la Fundación Le Corbusier y también contamos con la información ofrecida por La Œuvre Complète, aunque en su mayoría consiste en una selección de los mismos dibujos acompañados de algunas notas aclaratorias. Por razones de operatividad se ha optado por recurrir a la tecnología actual, de esta manera todos los dibujos han sido realizados por ordenador. Básicamente nos hemos centrado en una serie de dibujos, que consideramos son los últimos cronológicamente hablando y que representan la planta baja, primera y de cubiertas, una sección transversal de la casa, y sendas axonometrías. También hemos prestado atención al resto de la documentación existente, especialmente a los dibujos que hacen referencia a la implantación de la casa en su entorno, a la organización global y al programa de necesidades, así como cualquier información concreta sobre dimensiones. Hemos insertado la casa en la parcela original, previa búsqueda de la misma, hemos dibujado la planta baja, la planta primera, y una sección transversal, todo ello atendiendo a la información prestada por los dibujos originales del maestro. Como ejercicio hemos dibujado una hipótesis de detalle constructivo de cubiertas. Abstract: It is imagined to be a Le Corbusier employee who is commissioned to draft a house based on some original drawings. These drawings are made by Le Corbusier in 1942, during his stay in Algeria, and refer to a house designed for an agricultural property near the Mountain Chenoua which belongs to Peyrissac family. The original drawings have been provided by Le Corbusier Foundation. Also, The Œuvre Complète provides information for this project, although mostly consists of a selection of the same drawings accompanied by some explanatory notes. For operational reasons it is decided to use current technology, so all drawings have been made by computer. Basically it has been focused on a series of drawings, which it is believed are the last ones and represent the ground, first floor plan and the roof, also a cross-section of the house, and two axonometrics. It has been paid attention to other existing documentation, especially drawings that refer to the implementation of the house in its surrounding, the organization and the program requirements, as well as any specific information about dimensions. The house has been inserted in the original plot and the ground floor, first floor, and a cross section have been drawn, based on the information provided by the original drawings of the Master. As an exercise, a hypothetical construction detail of the roof has been drawn. Palabras Clave: Le Corbusier; Peyrissac; Chenoua; Argel; Croquis; Casa. Keywords: Le Corbusier; Peyrissac; Chenoua; Argel; Sketch; House. DOI: http://dx.doi.org/10.4995/LC2015.2015.680
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Coover, Abigail. „two-and-a-half-dimensional“. In 108th Annual Meeting Proceedings. ACSA Press, 2020. http://dx.doi.org/10.35483/acsa.am.108.33.
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Flickering lines dance in constant motion above, below, around and through the richly textured fields of the multilayered drawings of architecture. This proposal seeks to investigate the interplay of geometry, materiality, color, and perception to create unique spatial and volumetric experiences that oscillate in the area between drawing, installation and permanent structure. Through the transition from the speculative two-dimensional architectural project to that of the project realized in three dimensions, exists a middle ground for investigation. This is the space of the two-and-a-half-dimensional or 2.5D.
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Peeters, M., G. Kerschen, J. C. Golinval und C. Stephan. „Nonlinear Normal Modes of Real-World Structures: Application to a Full-Scale Aircraft“. In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-47141.
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The objective of this paper is to demonstrate that the numerical computation of the nonlinear normal modes (NNMs) of complex real-world structures is now within reach. The application considered in this study is the airframe of the Morane-Saulnier Paris aircraft, whose ground vibration tests have exhibited some nonlinear structural behaviors. The finite element model of this aircraft, elaborated from drawings, has more than 80000 degrees of freedom, and softening nonlinearities exist in the connection between the external fuel tanks and the wing tips. From this model, a reduced-order model, which is accurate in the [0–100Hz] range, is constructed using the Craig-Bampton technique. The NNMs of the reduced model are then computed using a numerical algorithm combining shooting and pseudo-arclength continuation. The results show that the NNMs of this full-scale structure can be computed accurately even in strongly nonlinear regimes and with a reasonable computational burden. Nonlinear modal interactions are also highlighted by the algorithm and are discussed.
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Bujarbaruah, Prankush, Sukungta Monlai, Satyajit Chakrabarty, Sidhartha Gogoi, Manash Choudhury, Ashish Khera und Bidyut B. Baniah. „Utilization of High Resolution Integrated Indirect Inspection Survey Technologies as Part of the Direct Assessment Methodology of Ageing Non-Cathodically Protected Pipeline Network“. In ASME 2021 India Oil and Gas Pipeline Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/iogpc2021-64097.
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Abstract There is an old adage “if it is not broken, do not fix it” and this could be applicable for our day-to-day menial activities, but could prove fatally disastrous if followed by any pipeline owners globally. Although, pipelines are statistically the safest means of transporting hydrocarbon — the consequence to an event could be exponential, even if the probability of the event to occur is low. The magnitude of consequence only goes higher with the ever-burgeoning population. To this effect, Oil India Limited (OIL) owns an intensive network of spider-webbed carbon steel pipelines in Upper Assam, India geographical area with varying vintage. Understanding the associated risks of operating such critical pipeline systems, it was decided for the pipelines to undergo code-compliant integrity assessment. It is well known that non-CP protected pipelines are electrically continuous conductors without any insulation (isolation) joints to separate the above-ground station piping to the cross-country underground pipeline sections. With respect to this, OIL deployed a state-of-the-art integrated indirect inspection survey tool to assist in conducting Direct Assessment based integrity assessment. This paper provides an insight into such a scenario where the operator proactively employed the use of advanced high-resolution integrated survey technology to their non-cathodically protected, but coated pipeline assets. Due to the age and design of these “temporary” pipeline systems, there were no prior readily available records in terms of construction, drawings, maps, alignment sheets, operational or historical maintenance data for these pipelines. The advanced Integrated survey played a vital role in decluttering these extensively jumbled network of non-CP pipelines. Firstly, by actually locating the pipeline based on sub meter accuracy and secondly performing simultaneous above ground survey for coating assessment and susceptibility for corrosion. The adaptability of integrated survey as per given situation helped overcome the difficult pipeline route conditions and customize the assessment for these highly challenging pipelines and make ECDA feasible as per NACE SP0502 Standard Practice for this very complex spider web network of pipelines.
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Ripley, Neil, Trevor Simpson und Mark Leir. „Lessons Learned From Supporting a Geohazard Management Program“. In 2010 8th International Pipeline Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ipc2010-31339.
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There are a number of geomatics tasks required to support a Geohazard Management Program (Program). For the program implemented by BGC Engineering Inc. for several midstream pipeline operators, these tasks range from identification of potential geohazards (landslide, river erosion), to setup and support for field navigation, through to geohazard database management. Doing these in an efficient and effective manner requires substantial amounts of spatial data and a toolset containing both software and hardware components. For this Program geohazards are classified as hydrotechnical (e.g. a pipeline crossing a river) or geotechnical (e.g. a pipeline traversing a slope). Lists of potential geohazards are generated and provided to field crews who then navigate to each site and perform a field inspection. Navigation and inspection observations are accomplished with the aid of a ruggedized laptop connected to wireless GPS. Upon return from the field, sites are uploaded to Cambio™, an internet database for managing geohazards. Each site is assigned a frequency of action commensurate with the estimated level of risk. Assigned actions include follow-up ground inspections, detailed investigations, monitoring, maintenance and mitigation. An audit trail of site inspections, surveys and mitigation reports, photos, and site survey drawings, are all available for review within Cambio™, allowing access to the information from any site with an internet connection. This paper will present an overview of the Geohazard Management Program from a geomatics perspective, highlighting the integration of geomatics tools into a system designed to be used by engineering personnel, field technicians, and project managers.
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Flores V., David, Roberto Gomez, Dante Tolentino und E. Sánchez Nájera. „Lateral Seismic Fragility of a Cable-Stayed Bridge using Point Estimate Method“. In IABSE Symposium, Istanbul 2023: Long Span Bridges. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2023. http://dx.doi.org/10.2749/istanbul.2023.0092.
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<p>Cable-stayed bridges are a constant topic of study, they are pleasing to the eye and have a good seismic performance. Some important cable-stayed bridges in Mexico are ageing and there is a need to review their structural response. As built drawings are necessary to carry out a thoroughly review, however, ageing bridges blue prints are incomplete or lack important information, such is the case of cable pre-stressing forces, concrete mechanical properties and damping ratio. These are common source of uncertainty. In the analytical fragility assessment of bridges, several uncertainties are inherent in the estimation of seismic damage. Several techniques have been widely used, such as Monte Carlo simulations, simplified fragility estimation, Bayesian methodologies, among others. However, there is not much research about point estimate methodologies that are just as precise as other techniques and demand much lower computation time.</p><p>In this regard, in this paper a probabilistic approach for the lateral seismic fragility of cable stayed bridges is presented. Point estimates simulations are used. We study a cable-stayed bridge whose configuration is widely used in Mexico. A numerical model is developed considering the nonlinear response of the components and its uncertainties. A collection of real ground motion records is used as applied load, from which the fragility curves are then obtained by analysing the structure using Non-linear Time History Analysis (NTHA). Then, the fragility curves of piers and pylon are presented.</p>
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Dan, Dorin, und Mirela Blaga. „INTERACTIVE TOOLS FOR UNDERSTANDING THE METHODS USED TO CONTROL RACKING MOVEMENT OF THE NEEDLE BED OF A FLAT KNITTING MACHINE“. In eLSE 2016. Carol I National Defence University Publishing House, 2016. http://dx.doi.org/10.12753/2066-026x-16-250.
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The interactive method of teaching presented in this paper represents the outcome of the process of the innovating the working methods applied in the knitting laboratory of the flat knitting technology. The method applied successfully makes use of the benefits of computer-aided training and provides students with the following interactive animations: description of the raking device and how to control the needle bed positions, characterization of the three working positions for needle beds (ground position for knitting stitches, half rack for transferring stitches and half rack for knitting 1x1 or purl structures). In order to show methods for protecting the knitting process, two interactive applications are used: first, the over racking mechanism that pre-stretches the stitches prior to transfer, and second, the mechanism that racked very slowly the needle bed to protect the yarn used. Corel Draw was used for the drawings, Corel Rave for the interactive animations and video camera for the video clips. The laboratory module was designed based on an XML file taken as a model, amended contents according to the needs of the laboratory and then used for transformation in the HTML laboratory module using the ModulEst application. The Hot Potatoes software has been used to create interactive multiple-choice test for the World Wide Web. The application is available for the students in html format, and it is part of the module of "Advanced Knitting Technologies", developed within the project Adan2Tex, financed through the program Erasmus Plus, for supporting the professionals in the textile industry.
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Yang, Jianfeng, Handing Wang, Xiaoming Zhang, Bingchen Feng, Weijin Wang und Zhao Wang. „Seismic Risk Analysis of the 380VAC Emergency Electrical Power Distribution Cabinets of a Nuclear Power Plant in China“. In 2017 25th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/icone25-66548.
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According to the research of the operating principle, installation position and running environment of the 380VAC emergency electrical power distribution cabinets (Hereinafter referred to as electrical cabinets) of a nuclear power plant in China, there are three aspects caused by earthquake that seriously affect the safety of the electrical cabinets, including relay chatter, failure of electrical cabinet structure and spatial interactions. Relay chatter refers to contacts of the relay being changed during the period of strong shaking. It may lead to associated circuits malfunction and the equipment failure of the relay control unless it can be effectively reset. The purpose of relay chatter is to find out these relays whose consequences are unacceptable after earthquake and calculate failure probability. Failure of electrical cabinet structure in the earthquake is to carry out seismic fragility evaluation. The goal of seismic fragility evaluation is to assess a given value which describes the ground acceleration capacity and the corresponding uncertainties, and then, the conditional probability of failure as a function of peak ground acceleration [PGA] and a family of fragility curves can be obtained. In this paper, finite element model of the electrical cabinet is established using ANSYS Workbench software. According to the electric cabinets seismic failure mode, we take some of the parameters including the parameters of the floor response spectrum, material strength parameters and so on as the input to calculate the median ground acceleration capacity and the corresponding uncertain parameters. The seismic spatial interactions are defined as the electrical cabinet destroyed due to the surrounding objects failure by falling, collapse, etc. Therefore, if necessary, it is needed to evaluate the seismic fragility of the surrounding objects. Usually through walking down, checking the design drawings or the combination of the above methods, we can find out the surrounding objects for an electric cabinet. So we analyze the seismic risk of the electrical cabinet from the above three aspects. When the results of the above three aspects obtained, we convolute of the electrical cabinet fragility with the seismic hazard curve which represents the frequency of occurrence of earthquake motions at various levels of intensity at the site. Then Monte Carlo sampling is adopted to analyze the uncertainty distribution. In this article, Risk Spectrum Professional software (reference 8) and Risk Spectrum Hazard lite software (reference 9) are used to complete the calculation and get some quantitative seismic risk insights. The above seismic risk insights can support the establishment of seismic probabilistic safety analysis model (Hereinafter referred to as SPSA) for a nuclear power plant, which helps to formulate seismic improvement strategies.
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Walker, Gareth, Nick Jefferies, Matt Lennard und Jeremy Lightfoot. „Cone Penetration Testing of Radiologically Contaminated Burial Trenches“. In ASME 2009 12th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2009. http://dx.doi.org/10.1115/icem2009-16086.
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Golder Associates (UK) Ltd, in partnership with Serco Assurance (Serco), undertook targeted cone penetration testing (CPT) of a series of six parallel on-site burial trenches on a nuclear licensed site in the UK. The form and concentration of radioactive and chemical material within the trenches is unknown. CPT was used to confirm the location of the bund walls and to characterise the material within the trenches. The CPT technique involves hydraulically pushing rods fitted with specialist characterisation “cones” into the ground. CPT generates no solid or liquid waste, and allowed rapid investigation of the trenches and bunds while ensuring exposure of radiation and contamination to workers was kept to a minimum, or removed in entirety. As a result of the unknown nature of radiological contamination within the trenches and the potential of introducing contamination into the inside of the CPT truck, a purpose-built extraction rig was constructed to withdraw the CPT equipment from the ground. Extraction of the equipment assumed airborne radioactive contamination was a potential hazard. The CPT locations selected for the investigation were based on non-intrusive geophysical survey work and a radiation survey, which identified the approximate location of the trenches, anomalies within the material (e.g. metallic objects), and radiation hotspots. The results of the geophysical surveys were overlaid with the original as-built drawings of the trenches. During the investigation the following investigation cones were deployed: • Resistance/friction cone, which determines geology through measurement of the friction on the sleeve of the cone and resistance on the tip of the cone; this was used to investigate the geology of the bunds. • Total gamma cone, which was used to obtain total gamma radiation results (in counts per second); • Groundwater sampler (BAT Sampler™), which was used to obtain a water sample from beneath the trenches; • Video cone, which was used to obtain a visual recording of the material within the trenches; and • Conductivity cone, which was used to investigate the presence of and depth to bodies of water below ground level (e.g. perched water, regional groundwater). The investigation collected essential data from an area of the site that had not previously been investigated, while minimising potential radiological exposure to all workers, and producing no investigation-derived waste. The investigation therefore confirmed the efficacy of cone penetration testing as a valid site investigation technique in a high hazard area. The data acquired from the CPT investigation and geophysical investigation also allowed boreholes to be sited in the bund walls between the trenches. Siting of the boreholes was a major risk for the project and presented a significant potential hazard. Golder has successfully used CPT on nuclear sites in the UK: as an innovative site investigation technique to facilitate radiological characterisation of an area with variable ground conditions; to investigate organic solvent plumes; and for the installation of blind tubes as a way of conducting subsurface radiation surveys and as part of a leak detection system (work in progress in partnership with Serco).
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Stanica, Iulia cristina, Costin anton Boiangiu, Giorgiana violeta Vlasceanu, Marcel Prodan, Cristian Avatavului, Razvan adrian Deaconescu und Codrin Taut. „A SURVEY ON HISTORY, PRESENT AND PERSPECTIVES OF DOCUMENT IMAGE ANALYSIS SYSTEMS“. In eLSE 2019. Carol I National Defence University Publishing House, 2019. http://dx.doi.org/10.12753/2066-026x-19-025.
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We live in the century of technology, where the enormous evolution of data and science has recently favored a strong interest in processing, transmitting, and storing information. If, in the past, only a human mind could extract meaningful information from image data, after decades of dedicated research, scientists have managed to build complex systems that can identify different areas, tables, and texts from scanned documents, all the obtained information being easily accessed and passed by one to another. Books, newspapers, maps, letters, drawings - all types of documents can be scanned and processed in order to become available in a digital format. In the digital world, the storage space is very small compared to physical documents, so these applications will replace millions of old paper volumes with a single memory disk and will be accessible at the same time for anyone using just Internet access and without having a risk of deterioration. Other problems, such as ecological issues, accessibility and flexibility constraints can be solved by the use of document image analysis systems. This article presents the methods and techniques used to process on-paper documents and convert them to electronic ones, starting from pixel level and getting to the level of the entire document. The main purpose of Document Image Analysis Systems is to recognize texts and graphical interpretations from images, extract, format and present their contained information accordingly to the people's needs. We will also try to provide solid ground for practitioners that implement systems from this category to enhance the unsupervised processing features in order to make physical documents easily available to the masses.