Готові списки джерел за темами / Campbell, Robert

Добірка наукової літератури з теми "Campbell, Robert"

Автор: Grafiati
Опубліковано: 10 грудня 2022
Оновлено: 28 січня 2023

Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями

Оберіть тип джерела:

Зміст

Ознайомтеся зі списками актуальних статей, книг, дисертацій, тез та інших наукових джерел на тему "Campbell, Robert".

Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.

Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.

Статті в журналах з теми "Campbell, Robert"

1

Campbell, J., B. Sykes, and R. Rubira. "Robert Wallace Campbell." Australian Veterinary Journal 99, no. 11 (November 2021): 502–3. http://dx.doi.org/10.1111/avj.13121.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Marx, Vivien. "Robert E. Campbell." Nature Methods 12, no. 3 (February 26, 2015): 163. http://dx.doi.org/10.1038/nmeth.3294.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

GCJ. "Robert Campbell Cunningham." Psychiatric Bulletin 14, no. 2 (February 1990): 123. http://dx.doi.org/10.1192/pb.14.2.123.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Lamberty, George. "Obituary Robert Clark Campbell." Journal of Plastic, Reconstructive & Aesthetic Surgery 69, no. 10 (October 2016): 1319–20. http://dx.doi.org/10.1016/j.bjps.2016.07.016.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Thomas, S. "Robert Wedderburn's Correspondent Miss Campbell." Notes and Queries 61, no. 4 (November 7, 2014): 510–14. http://dx.doi.org/10.1093/notesj/gju183.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Sokal, Michael M. "Robert Campbell Davis (1925–1999)." History of Psychology 2, no. 3 (1999): 240–42. http://dx.doi.org/10.1037/h0092720.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Vane-Wright, Richard I. "In memoriam: Campbell Robert Smith (1951–2019)." Nota Lepidopterologica 42, no. 1 (July 23, 2019): 121–28. http://dx.doi.org/10.3897/nl.42.37808.

Повний текст джерела
Анотація:
Campbell Smith was employed as an entomologist at London’s Natural History Museum for 35 years, during which time he worked on various catalogues, curated parts of the museum collections, and contributed to the output of several research groups. In 2009 he took early retirement to look after his widowed father. His sudden and unexpected death on 11th March 2019 came as a shock to former museum staff and various entomologists around the world, acknowledging his loss with sorrow mixed with good memories of this most amiable colleague and friend.
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Doty, William G. "Joseph Campbell: An Introduction. Robert A. Segal." Journal of Religion 68, no. 2 (April 1988): 358. http://dx.doi.org/10.1086/487872.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Campbell, Adrian, Robert Hairstans, and Giulia Jones. "Refocusing modern methods of construction on the climate emergency: a 'five capitals' model for action." Structural Engineer 98, no. 9 (September 1, 2020): 22–28. http://dx.doi.org/10.56330/zymy4857.

Повний текст джерела
Анотація:
Adrian Campbell, Robert Hairstans and Giulia Jones explain how natural, human, social, manufactured and economic capital can all benefit from a sustainability-focused approach to off-site manufacturing.
Стилі APA, Harvard, Vancouver, ISO та ін.
10

ZHANG, ZHI-QIANG. "In memory of Robert Campbell Dalgleish (1940–2009)." Zootaxa 2336, no. 1 (January 15, 2010): 67. http://dx.doi.org/10.11646/zootaxa.2336.1.6.

Повний текст джерела
Анотація:
Dr Robert Campbell Dalgleish—Zootaxa’s editor for Phthiraptera and Siphonaptera—died suddenly of a heart attack on December 7th at his home in San Diego, California, USA. He was in contact with the editorial office when he accepted two manuscripts for Zootaxa in Nov. 2009 (Lareschi & Linardi 2009; Mound 2009). I was shocked and deeply saddened when I heard the news of his passing in December 2009.
Стилі APA, Harvard, Vancouver, ISO та ін.
Більше джерел

Дисертації з теми "Campbell, Robert"

1

Curry, Philip Dwayne. "Robert Oldham Fife a "classical Disciple" in the Stone-Campbell movement /." Online full text .pdf document, available to Fuller patrons only, 2000. http://www.tren.com.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Campbell, Robert Todd. "The Ninth Step." ScholarWorks@UNO, 2009. http://scholarworks.uno.edu/td/936.

Повний текст джерела
Анотація:
In this paper, I will analyze the production process of my thesis film, The Ninth Step. I will examine all of the various elements of the project, from development, through post-production to determine how effective it is in depicting human drama and conflict. I will employ the notes of unbiased audience members as a key criterion in the measure of this study.
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Klevskog, Emma. "Robert Langdon's Hero's Journey : Reading the Novels of Dan Brown with the perspective of the Monomyth." Thesis, Karlstads universitet, Institutionen för språk, litteratur och interkultur, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-48079.

Повний текст джерела
Анотація:
This essay investigates the characteristics of Robert Langdon and his female helpers in Dan Brown’s novels Angels and Demons, The Da Vinci Code, The Lost symbol and Inferno.  In each of these novels, the quests are always solved by a male-female team. This essay is therefore going to focus on the character of Robert Langdon and his female helpers with the perspective of the Monomyth by Joseph Campbell. The protagonist Robert Langdon is a Harvard University professor specialised in religious iconology and symbology, but in these four novels he is thrown into breath-taking adventures with dangerous situations, however, with the help of several females he always manages to survive. The aim of this essay is to show how Langdon and his female helpers have the characteristics of a contemporary hero and helper, with the perspective of Campbell’s the Monomyth. Keywords: Character Analysis, Robert Langdon, Hero, Female Helper, the Monomyth, Angels and Demons, The Da Vinci Code, The Lost Symbol, Inferno.
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Forte, Joseph A. ""We Weren't Kidding": Prediction as Ideology in American Pulp Science Fiction, 1938-1949." Thesis, Virginia Tech, 2010. http://hdl.handle.net/10919/42644.

Повний текст джерела
Анотація:
In 1971, Isaac Asimov observed in humanity, a science-important society. For this he credited the man who had been his editor in the 1940s during the period known as the golden age of American science fiction, John W. Campbell, Jr. Campbell was editor of Astounding Science-Fiction, the magazine that launched both Asimov's career and the golden age, from 1938 until his death in 1971. Campbell and his authors set the foundation for the modern sci-fi, cementing genre distinction by the application of plausible technological speculation. Campbell assumed the science-important society that Asimov found thirty years later, attributing sci-fi ascendance during the golden age a particular compatibility with that cultural context. On another level, sci-fiâ s compatibility with â science-importantâ tendencies during the first half of the twentieth-century betrayed a deeper agreement with the social structures that fueled those tendencies and reflected an explication of modernity on capitalist terms. Tethered to an imperative of plausibly extrapolated technology within an American context, sci-fi authors retained the social underpinnings of that context. In this thesis, I perform a textual analysis of stories published in Astounding during the 1940s, following the sci-fi as it grew into a mainstream cultural product. In this, I prioritize not the intentions of authors to advance explicit themes or speculations. Rather, I allow the authorsâ direction of reader sympathy to suggest the way that favored characterizations advanced ideological bias. Sci-fi authors supported a route to success via individualistic, competitive, and private enterprise. They supported an American capitalistic conveyance of modernity.
Master of Arts
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Noordhuis-Fairfax, Sarina. "Field | Guide: John Berger and the diagrammatic exploration of place." Phd thesis, Canberra, ACT : The Australian National University, 2018. http://hdl.handle.net/1885/154278.

Повний текст джерела
Анотація:
Positioned between writing and drawing, the diagram is proposed by John Berger as an alternative strategy for articulating encounters with landscape. A diagrammatic approach offers a schematic vocabulary that can compress time and offer a spatial reading of information. Situated within the contemporary field of direct data visualisation, my practice-led research interprets Berger’s ‘Field’ essay as a guide to producing four field | studies within a suburban park in Canberra. My seasonal investigations demonstrate how applying the conventions of the pictorial list, dot-distribution map, routing diagram and colour-wheel reveals subtle ecological and biographical narratives.
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Pearson, Judith Huacuja. "Spirituality and activism in the art of Robert Campbell." Thesis, 1997. http://hdl.handle.net/1911/17121.

Повний текст джерела
Анотація:
As an artist, physician and social activist, Robert Campbell combined artistic, spiritual, medical and humanitarian work. Through art Campbell engaged his audiences in issues of poverty and injustice, and stimulated social activism in others. This thesis articulates the connections between Campbell's differing media and identifies his strategies for fusing art with social activism. The thesis documents paintings through which Campbell attempted to link personal reflection and meditation to an awareness of others; sculptures that incorporate the viewer's symbolic actions with an expanded consciousness; and installations that explicitly associate compassionate identification with others to social activism. Campbell's artistic and social practice, influenced by Liberation theology of Latin America, sought to reconcile the personal with the social through a process of consciousness-raising. This process included meditations, educational actions and community involvement, and is identified as a key component to the activism and spirituality in the art of Robert Campbell.
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Lee, Robert Campbell. "Biochemistry and molecular biology of arabinoxylan metabolism in barley / submitted by Robert Campbell Lee." 2002. http://hdl.handle.net/2440/21829.

Повний текст джерела
Анотація:
"April 2002"
Includes bibliographical references (leaves 193-211)
xi, 211 leaves : ill., plates ; 30 cm.
Title page, contents and abstract only. The complete thesis in print form is available from the University Library.
Thesis (Ph.D.)--University of Adelaide, Dept. of Plant Science, 2002
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Lee, Robert Campbell. "Biochemistry and molecular biology of arabinoxylan metabolism in barley / submitted by Robert Campbell Lee." Thesis, 2002. http://hdl.handle.net/2440/21829.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.

Книги з теми "Campbell, Robert"

1

McKnight, Glee. Descendants of Robert and Jane (Cumberland) Campbell of Butler County, Pennsylvania. Butler, Pa: The Association, 2001.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

From mountain man to millionaire: The "bold and dashing life" of Robert Campbell. Columbia: University of Missouri Press, 1999.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Hart, Robert. Archives of China's Imperial Maritime Customs Confidential Correspondence between Robert Hart and James Duncan Campbell, 1874-1907. Beijing: Foreign Languages Press, 1990.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Baker, Frances Shands. Mountain man to millionaire: The story of Colonel Robert Campbell, 1804-1879 and other heroes in St. Louis, Missouri. St. Louis: Campbell House Museum Press, 2000.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Moore, A. Gregg. The legacy of John Robert Moore alias Sikes: With chapters devoted to the families Campbell, Eason, Orr, Pate, and Westbrook. Wilmington, NC (3308 N. Kerr Ave., Wilmington 28405): A.G. Moore, 1992.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Crowder, Norman Kenneth. Renfrew people: An every name index to The story of Renfrew by W.E. Smallfield and Rev. Robert Campbell, D. SC. Nepean, Ont: Crowder Enterprises, 1987.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Robert, Campbell. Farewell sermon delivered by Rev. Robert Campbell, D.D., on retiring from the ministry of St. Gabriel Church, Montreal, October 3, 1909. Montreal: Witness Press, 1995.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

John, Campbell. The correspondence of John Campbell MP, with his family, Henry Fox, Sir Robert Walpole and the Duke of Newcastle, 1734-71. Chichester, West Sussex: Wiley Blackwell for The Parliamentary History Yearbook Trust, 2013.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

1771-1858, Owen Robert, and Underhill Samuel 1795-1872, eds. Debating for God: Alexander Campbell's challenge to skepticism in antebellum America. Abilene, Tex: Abilene Christian University Press, 2008.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Campbell, Robert. Journal of occurrences at the forks of the Lewes and Pelly rivers May 1848 to September 1852: The daily journal kept at the Hudson's Bay Company trading post known as Fort Selkirk at the confluence of the Yukon and Pelly rivers, Yukon territory : by Robert Campbell (Clerk of the Company) and James G. Stewart (Asst. Clerk). Whitehorse: Yukon Tourism Heritage Branch, 2000.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
Більше джерел

Частини книг з теми "Campbell, Robert"

1

Campbell, Joseph. "Joseph Campbell: "The General Manager has arrived at the only possible conclusion available to a reasonable and prudent man"." In In the Matter of J. Robert Oppenheimer, edited by Richard Polenberg, 385–86. Ithaca, NY: Cornell University Press, 2019. http://dx.doi.org/10.7591/9781501729515-062.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Pickel, Gert. "Robert D. Putnam und David E. Campbell: American Grace: How Religion Divides and Unites Us (2010)." In Schlüsselwerke der Religionssoziologie, 621–29. Wiesbaden: Springer Fachmedien Wiesbaden, 2019. http://dx.doi.org/10.1007/978-3-658-15250-5_68.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Dickens, Charles. "To Sir Robert Campbell, [?6 September 1850]." In The British Academy/The Pilgrim Edition of the Letters of Charles Dickens, Vol. 6: 1850–1852, edited by Kathleen Mary Tillotson, Graham Storey, and Nina Burgis. Oxford University Press, 1988. http://dx.doi.org/10.1093/oseo/instance.00112589.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

"An Interview with Robert Jean Campbell III, MD." In American Psychiatry and Homosexuality, 87–104. Routledge, 2012. http://dx.doi.org/10.4324/9780203835937-11.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

"Martin R. Delany and Robert Campbell in West Africa." In Moving Home, 120–59. Duke University Press, 2021. http://dx.doi.org/10.1215/9781478021858-005.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

"Martin R. Delany and Robert Campbell in West Africa." In Moving Home, 120–59. Duke University Press, 2021. http://dx.doi.org/10.2307/j.ctv2k0580g.9.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Burns, Robert. "284 Bruce Campbell Esq. Milrig By Kilmarnock." In The Letters of Robert Burns, Vol. 1: 1780–1789 (Second Edition), edited by J. De Lancey Ferguson and G. Ross Roy, 336. Oxford University Press, 1985. http://dx.doi.org/10.1093/oseo/instance.00033414.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

McCue, Kirsteen. "Orchestral Manoeuvres: Burns on the Concert Platform, 1879–1959." In Performing Robert Burns, 148–63. Edinburgh University Press, 2021. http://dx.doi.org/10.3366/edinburgh/9781474457149.003.0010.

Повний текст джерела
Анотація:
As has been mapped by recent scholarship, Burns’s lyrics, and often the melodies associated with them, have inspired musicians since the 1780s to arrange, set and compose their own work. Much has been written on the musical settings in Burns’s early song collections for Johnson and Thomson; some work has been done on Schumann’s lieder with texts by Burns; little attention has so far been given to the many orchestral depictions of Burns’s poems and songs. This chapter examines the creation and performance history of a small set of these works. It begins with Alexander Campbell Mackenzie's late-1800s orchestral rhapsodies, featuring key songs and tunes associated with Burns, a compositional process repeated in 1959 with Serge Hovey's Robert Burns Rhapsody, created in the USA and premiered in Berlin. Between these dates, Burns's major poem 'Tam o' Shanter' inspired in quite different ways three key British composers – Mackenzie and his younger Scots contemporary Learmont Drysdale, and England's Malcolm Arnold – revealing its attractiveness to the world of programmatic orchestral music. The chapter explores how Burns's musical influence went beyond his songs and melodies – and beyond Scotland's borders.
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Scott, Walter. "Appendix." In Rob Roy. Oxford University Press, 2008. http://dx.doi.org/10.1093/owc/9780199549887.003.0004.

Повний текст джерела
Анотація:
No. I Advertisement for Apprehension of Rob Roy (From the Edinburgh Evening Courant, June 18 to June 21, A.D. 1712. No. 1058) ‘That Robert Campbell, commonly known by the name of Rob Roy MacGregor, being lately intrusted by several noblemen and gentlemen with...
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Burns, Robert. "41 Monsieur Thomas Campbell Pencloe, c/o Mr. Good." In The Letters of Robert Burns, Vol. 1: 1780–1789 (Second Edition), edited by J. De Lancey Ferguson and G. Ross Roy. Oxford University Press, 1985. http://dx.doi.org/10.1093/oseo/instance.00033139.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.

Тези доповідей конференцій з теми "Campbell, Robert"

1

Thiago Gamboa Ritto, David Julian González Maldonado, and Paulo Arthur Lima de Deus. "Robust Campbell diagram of a simple 2DOF rotordynamics system." In 23rd ABCM International Congress of Mechanical Engineering. Rio de Janeiro, Brazil: ABCM Brazilian Society of Mechanical Sciences and Engineering, 2015. http://dx.doi.org/10.20906/cps/cob-2015-1618.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Duleba, I. "On use of Campbell-Baker-Hausdorff-Dynkin formulas in nonholonomic motion planning." In Proceedings of the First Workshop on Robot Motion and Control. RoMoCo'99 (Cat. No.99EX353). IEEE, 1999. http://dx.doi.org/10.1109/romoco.1999.791072.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Legrand, Mathias, and Christophe Pierre. "Numerical Investigation of Abradable Coating Wear Through Plastic Constitutive Law: Application to Aircraft Engines." In ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-87669.

Повний текст джерела
Анотація:
In the field of turbomachines, better engine performances are achieved by reducing possible parasitic leakage flows through the closure of the clearance distance between blade tips and surrounding casings. Together with new technologies involving higher casing conicity for improved compression rates, direct contact is now considered as part of aircraft engines normal life. In order to avoid possibly catastrophic scenarios due to high contact efforts between the rotating and static components, implementation of abradable coatings has been widely recognized as a robust solution offering several advantages: reducing potential damage to the incurring blade as well as adjusting operating clearances, in-situ, to accept physical contact events. Nevertheless, the process of wear undergone by abradable coatings is not well understood and its consequences are still under investigation. In the present work, its macroscopic behavior is numerically approximated through a piecewise linear plastic constitutive law which allows for real time access to the current abradable layer profile. First results prove convergence in time and space of the proposed approach and show that the frequency content of the blade response is clearly affected by the presence of abradable coatings. It seems that opening the clearance between the blade tip and the casing during wear leads to large amplitudes of motion far from the usual linear conditions provided by the well-known Campbell diagrams.
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Machado, Antonio Jaschke. "The effect of buildings on atmospheric turbulence in open spaces in Western São Paulo State, Brazil." In 24th ISUF 2017 - City and Territory in the Globalization Age. Valencia: Universitat Politècnica València, 2017. http://dx.doi.org/10.4995/isuf2017.2017.4832.

Повний текст джерела
Анотація:
This paper seeks to identify a pattern of air turbulence that reflects the effect of buildings on air turbulence characteristics measured in open spaces in Western São Paulo State, Brazil. Atmospheric turbulence was estimated using high-frequency observations of the three orthogonal wind components (u, v, w). A CSAT3 sonic anemometer from Campbell Scientific Inc. (CSI) was deployed on the roof of a building, and the turbulent components (u', v', w') were systematically measured and recorded at 0.1 s and 5 min intervals, respectively, over 100 days between the end of summer (March 2015) and beginning of winter (July 2015) with a CR3000 automatic data acquisition system (CSI). The data analysis took into account the diurnal and nocturnal variability of the turbulence, and the experimental results revealed the existence of a daily vertical circulation pattern. The w component varied between 15 and 45 cm.s-1 on average, and the turbulent fluctuations observed indicated that an ascending component with a speed of up to 1 m.s-1 predominated during the middle of the day and early afternoon. Throughout the night until the early hours of the morning, a less robust, subsiding component with a speed of up to 0.5 m.s-1 was observed. The mean horizontal flow (u, v) was low-speed (around 1 m.s-1) and predominantly from the southeast. There was a consistent change in the direction of this wind, which changed to easterly during the morning as the ascending branch developed. We propose a model for air circulation close to the surface in which this change in direction of the wind is the main effect of the building on the observed turbulence.
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Szwedowicz, J., Th Secall-Wimmel, P. Du¨nck-Kerst, A. Sonnenschein, D. Regnery, and M. Westfahl. "Scaling Concept for Axial Turbine Stages With Loosely Assembled Friction Bolts: The Linear Dynamic Assessment — Part I." In ASME Turbo Expo 2007: Power for Land, Sea, and Air. ASMEDC, 2007. http://dx.doi.org/10.1115/gt2007-27502.

Повний текст джерела
Анотація:
For industrial condensing steam turbines operating at variable speed, Siemens has developed a last stage SK-blade family in the early 80s. The principle goal was to design a robust blade profile for the highest reliability and a good performance, which allow the operation in resonances under high steam mass flow and excessive condensing pressures. To suppress resonance stresses through friction dissipation, loosely fitted conical bolts are applied to the upper part of adjacent airfoils. In the early 80s, these capabilities were experimentally investigated and validated for the smallest SK-blade at a set-up of the real turbine unit. The tapered and twisted geometry of the smallest SK-blade has been scaled under consideration of the similar mechanical and aerodynamic characteristics. The entire scaled-up SK-blade family has proved its reliability in more than 500 industrial turbine units arranged for different power and speeds. In the last years there could be seen a trend to very large compression units, like GTL (Gas to Liquids), PTA (Acid Terephtalic) or Methanol plants. Therefore, the SK-blade family has been extended to larger airfoils using the well established scale concept based on the smallest SK-unit. In this paper, the mechanical capabilities of the smallest and large SK-blades coupled by the bolts are verified by using the Finite Element (FE) Method. The static analyses with friction sliding on the bolts and the linear dynamic behaviour of tuned disc assemblies are considered. The FE mesh quality and the proper restraint conditions at the radial root are accomplished by getting good agreements between the computed and measured resonance frequencies of the large freestanding blade at standstill. The validated mesh refinement and root boundary conditions are used further in all numerical FE analyses. For the large SK-disc assembly under spin pit conditions, the obtained FE results are in very good agreement with the experimental Campbell diagram. The determined positions of the gauges allow for identifying either stick-slip or sticking contact conditions at the bolts. The experimental spin pit results show mainly sticking contact conditions at the bolts because of too weak air jet excitation. Only in very narrow frequency ranges around resonance peaks, micro-slips on the friction bolts occur due to the resonance amplification of blade vibrations. This is proved indirectly by the evaluated damping values for spin pit conditions, which are bigger than the damping magnitudes of the disc assembly at standstill, which was measured with hammer tests. This empirical statement is approved by the FE steady-state dynamic results for the analytically determined amplitudes of the air jet excitation. The obtained results show that the proposed linear dynamic concept can be successfully applied to the design process of the scaled turbine discs of different dimensions with loosely assembled friction bolts for assessment of maximum static stresses and free vibration behaviour. The scaling design criteria of the blades with friction bolts are confirmed fully for natural frequencies and excitation conditions, but their real responses depending on the excitation amplitudes need to be obtained from the non-linear dynamic simulation which is considered in paper GT2007-27506 (Szwedowicz et al., 2007).
Стилі APA, Harvard, Vancouver, ISO та ін.
Також вас можуть зацікавити розширені добірки на тему "Campbell, Robert" для конкретних типів джерел:
Статті в журналах Книги
Ми пропонуємо знижки на всі преміум-плани для авторів, чиї праці увійшли до тематичних добірок літератури. Зв'яжіться з нами, щоб отримати унікальний промокод!

До бібліографії