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Dissertations / Theses on the topic 'Skewed element'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Hardyniec, Andrew B. "Dynamic Testing and Modeling of a Superelevated Skewed Highway Bridge." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/34806.

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Created in response to the aging infrastructure in the United States, the Long Term Bridge Performance Program (LTBPP) under the Federal Highway Administration (FHWA) proposes to assess the long-term performance of representative bridges through nondestructive evaluation (NDE) techniques and visual inspection. For consistency, a set of guidelines is needed to define the procedures for testing each bridge. The NDE techniques involve dynamic testing, and the protocol for this testing has yet to be finalized. To evaluate the dynamic testing guidelines, a 103 ft single-span, simply supported

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2

Ismail, Eman. "Distribution of stresses and displacements in skewed concrete slabs." Thesis, Linnéuniversitetet, Institutionen för byggteknik (BY), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-66839.

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A 3D nonlinear finite element analysis was developed for simulating the behavior of skewed concrete slabs and to identify the response of the slab with different angles and element sizes. The purpose of this research is helping the engineering and construction industry to utilize the FEM study and results more in different structural applications.Simulations performed in ABAQUS for skewed slabs are also compared to straight and skewed slabs according to the analytical formulation by Timoshenko.The result showed that when the distance increases, the load capacity measured by reaction forces dec

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3

Guo, Zifan. "Numerical Analysis of Passive Force on Skewed Bridge Abutments." BYU ScholarsArchive, 2015. https://scholarsarchive.byu.edu/etd/6151.

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Accounting for seismic forces and thermal expansion in bridge design requires an accurate passive force-deflection relationship for the abutment wall. Current design codes make no allowance for skew effects on passive force; however, large scale field tests indicate that there is a substantial reduction in peak passive force as skew angle increases. A reduction in passive force also reduces the transverse shear resistance on the abutment. The purpose of this study is to validate three-dimensional model using PLAXIS 3D, against large scale test results performed at Brigham Young University and

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4

Snow, Scott Karl. "Numerical Analysis of Passive Force on Skewed BridgeAbutments with Reinforced Concrete Wingwalls." BYU ScholarsArchive, 2008. https://scholarsarchive.byu.edu/etd/7399.

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Numerical Analysis of Passive Force on Skewed BridgeAbutments with Reinforced Concrete WingwallsScott Karl SnowDepartment of Civil and Environmental Engineering, BYU Master of Science Historically bridges with skewed abutments have proven more likely to fail during earthquake loadings (Toro et al, 2013) when compared to non-skewed bridges (Apirakvorapinit et al. 2012; Elnashai et al. 2010). Previous studies including small-scale laboratory tests by Jessee (2012), large-scale field tests by Smith (2014), and numerical modeling by Shamsabadi et al. (2006) have shown that 45° skewed bridge abutme

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5

Li, Xin Hughes Mary Leigh. "Finite element modeling of skewed reinforced concrete bridges and the bond-slip relationship between concrete and reinforcement." Auburn, Ala., 2007. http://repo.lib.auburn.edu/EtdRoot/2007/FALL/Civil_Engineering/Thesis/Li_Xin_24.pdf.

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6

Hunn, Zachary D. "A Finite Element Study of Non-Orthogonal Bolted Flange Plate Connections." University of Cincinnati / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1512045358760702.

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7

Chitroju, Rathna. "Improved performance characteristics of induction machines with non-skewed symmetrical rotor slots." Licentiate thesis, KTH, School of Electrical Engineering (EES), 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-11510.

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<p>Induction machines convert more than 55% of electrical energy into various other forms in industrial and domestic environments. Improved performance, especially by reduction of losses in induction machines hence can significantly reduce consumption of electricity. Many design and control methods are adopted to make induction machines work more efficiently, however certain design compromises are inevitable, such as skewing the rotor to improve the magnetic noise and torque characteristics increase the cross current losses considerably in a cage rotor, degrading the efficiency of the motor. C

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8

Wilson, Kevin E. "A Finite Element Investigation of Non-Orthogonal Moment Connections in Steel Construction." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1445609099.

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9

Mutashar, Rana O. "Response of Skewed Composite Adjacent Box Beam Bridge to Live and Environmental Load Conditions." Ohio University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1597020452615694.

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10

Ozgur, Cagri. "Influence of cross-frame detailing on curved and skewed steel I-girder bridges." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/42769.

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Curved and skewed I-girder bridges exhibit torsional displacements of the individual girders and of the overall bridge cross-section under dead loads. As a result, the girder webs can be plumb in only one configuration. If the structure is built such that the webs are plumb in the ideal no-load position, they generally cannot be plumb under the action of the structure's steel or total dead load; hence, twisting of the girders is unavoidable under dead loads. The deflected geometry resulting from these torsional displacements can impact the fit-up of the members, the erection requirements (cran

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11

Růžička, Jakub. "Nosný skelet budovy." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226065.

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The Master’s thesis concerns a design of load bearing multi-storey steel construction of scientific institution in Brno. This thesis contains three different solutions of a draft proposal and for the elected solution is processed technical report, structural analysis, material list and drawings.

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12

Osorno, Daniel. "Rolling element skew measurement in a spherical roller bearing utilizing a CPD probe." Thesis, Available online, Georgia Institute of Technology, 2005, 2005. http://etd.gatech.edu/theses/available/etd-08242005-140539/.

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Thesis (M. S.)--Mechanical Engineering, Georgia Institute of Technology, 2006.<br>Steven Danyluk, Committee Chair ; David Sanborn, Committee Member ; Shreyes Melkote, Committee Member. Includes bibliographical references.

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13

Kerr, Robert A. "Boundary Control For Automated Sweeping of Finite Element Meshes." BYU ScholarsArchive, 1999. https://scholarsarchive.byu.edu/etd/3454.

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Finite element analysis depends greatly upon a high-quality mesh to be able to provide reasonably accurate answers to engineering problems. Models that need to be analyzed using finite element analysis are becoming increasingly more complex, and correspondingly harder to mesh with good quality. Skew is one quality metric which can cause problems with finite element analyses. This thesis explains how skew is calculated, discusses two common sources of skew: multiply-linked surfaces with interval constraints, and biased edge meshes. Two methods of lessening skew in surface meshes are then presen

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14

Bengtsson, Pär, and Johan Wallin. "Analysis of a Prefabricated Concrete Skew Angle Slab Bridge." Thesis, Linnéuniversitetet, Institutionen för byggteknik (BY), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-81146.

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Prefabricated concrete elements are widely used in the construction industry today. With advantages such as time savings, increased safety at the construction site and minimized material usage, prefab becomes a major challenger to the traditional on-site casting construction method. However, constructing a bridge in concrete still presents challenges when using prefab as a construction method. Hence, more research in the area is needed. This master thesis has been studying the behavior of a prefabricated skew angle slab and the connection between the slab and wall elements of a bridge. The stu

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15

Li, Hangang Carleton University Dissertation Engineering Civil. "Thin-walled box beam finite elements for static analysis of curved haunched and skew multicell box girder bridges." Ottawa, 1992.

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16

Gomez, John Hermes Castillo. "Propriedades de Lie de elementos simétricos sob involuções orientadas em álgebras de grupo." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/45/45131/tde-04012013-170011/.

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Sejam $F$ um corpo de característica diferente de $2$ e $G$ um grupo. A partir da involução clássica, que envia cada elemento em seu inverso, e uma orientação do grupo $G$ é possível definir uma involução clássica orientada na álgebra de grupo $FG$. O objetivo desta tese é estudar propriedades de Lie do conjunto dos elementos simétricos $(FG)^+$ e, em alguns casos, do conjunto dos elementos anti-simétricos $(FG)^-$. Primeiro, abordamos o caso quando $G$ não tem elementos de ordem $2$. Aqui, mostramos que se $(FG)^+$ (ou $(FG)^-$) é Lie nilpotente ou Lie $n$-Engel, então $FG$ também é Lie nilp

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17

Hellström, Lars. "The Diamond Lemma for Power Series Algebras." Doctoral thesis, Umeå University, Mathematics and Mathematical Statistics, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-92.

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<p>The main result in this thesis is the generalisation of Bergman's diamond lemma for ring theory to power series rings. This generalisation makes it possible to treat problems in which there arise infinite descending chains. Several results in the literature are shown to be special cases of this diamond lemma and examples are given of interesting problems which could not previously be treated. One of these examples provides a general construction of a normed skew field in which a custom commutation relation holds.</p><p>There is also a general result on the structure of totally ordered semig

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18

Wrana, Lukáš. "Hasičská stanice." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265476.

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The subject of this thesis is to create a project documentation of the design of new construction of fire station in Šumperk. The fire station is designed according to ČSN 73 5710 as a C type station that will be used by professional fire brigade of Olomouc district. The object is structurally divided into two parts - a masonry building, and a reinforced concrete frame. The administrative part of the building together with the base of the fire brigade, technical room, and a fire tower are designed as a masonry building made of Ytong cellular concrete units. One of the parts is designed as a tw

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19

Fodor, Viktor. "Analýza konstrukce části elektrického stroje." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-219920.

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This thesis discusses the optical diagnostics of electrical motor parts using a 3D scanner. It describes the construction of electrical induction motors, their heat losses, cooling and refrigeration systems that may be used by such motors. It approaches the possibilities of heat recording and briefly explains the 3D scanner’s principal. It also introduces the simulation program ANSYS which uses the finite element method. This thesis shows the post processing of the digitalized object and the simulations and compares the simulation and measurement results. The final part is devoted to the analy

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20

Thomason, Krista A. "Trends Analysis and a Yearly Comparison of Point Sources of Atmospheric Mercury Using HYSPLIT Back Trajectories Focused in Athens, Ohio." Ohio University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1557161272706908.

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21

Ráb, Jakub. "Stavebně technologický projekt haly ADS s.r.o. Větřkovice." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-391951.

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The subject of my master's thesis is construction technological project of the hall ADS s.r.o. Větřkovice. The work includes technical report of construction technological project, facilities of construction zone, solving traffic routes from the production to the place of construction, study of the implementation of the main technological stages of the building SO02, the most appropriate machine assembly, technological specification for drilled piles and for montage of prefabricated reinforced concrete skeleton, control and test plan, schedule of work, itemized budget, plan of the safety and h

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22

Gregorová, Stanislava. "Dům krátké cesty." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-354978.

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The specified area is located in the city district Brno - Židenice, near the railway station. The theme of the thesis is the architectural study of selected part of the multifunctional intense urban structure, which was solved in the pre-diploma project. Draft uses the building site intensively, provides high plot ratio and density of population, a wide range of functions in a relatively small area is related to the elimination of transportation. By using topography the proposal creates a permeable areas, buildings with relations to the surroundings and with quality public spaces and attractiv

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23

Schrámek, Martin. "Příprava realizace montované haly s administrativou v Praci." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-392115.

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The subject of the diploma thesis is a preparation of a prefabricated hall with administration in Prace. The production hall will be used to produce glass fiber reinforced concrete. Next part and extension is an administrative part. The text part of the thesis contains a technical report on the building technological project, time and financial plan of the building - object, coordinating situation of the building with broader relations of the transport routes, study of the realization of the main technological stages of the building object, item budget of the main building object, time schedul

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24

Garláthy, Michal. "Vybrané části stavebně technologického projektu fotbalové tribuny Androva stadionu v Olomouci." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226510.

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The theme of this diploma thesis are the Selected Parts of Building and Technological Project for Football Tribune of Ander Stadium in Olomouc. The content of this diploma thesis is the technological process of assembly of the building bearing construction of prefabricated concrete elements, the budget, the inspection and the test plan, the issue of safety and health at the construction site, the project concerning the construction site installation, the mechanical assembly, assessment of tower crane, object time and financial plan, construction technology study and the construction timetable.

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25

Li, Xiaodong. "Observation et commande de quelques systèmes à paramètres distribués." Phd thesis, Université Claude Bernard - Lyon I, 2009. http://tel.archives-ouvertes.fr/tel-00456850.

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L'objectif principal de cette thèse consiste à étudier plusieurs thématiques : l'étude de l'observation et la commande d'un système de structure flexible et l'étude de la stabilité asymptotique d'un système d'échangeurs thermiques. Ce travail s'inscrit dans le domaine du contrôle des systèmes décrits par des équations aux dérivées partielles (EDP). On s'intéresse au système du corps-poutre en rotation dont la dynamique est physiquement non mesurable. On présente un observateur du type Luenberger de dimension infinie exponentiellement convergent afin d'estimer les variables d'état. L'observateu

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26

Hsiang, Tien-Ruey, and 項天瑞. "Additive Maps on Skew Elements of Prime Rings." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/99689989824982957276.

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碩士<br>國立清華大學<br>數學系<br>85<br>Let [x,y]=xy-yx. For a natural number v and a map f, we define [f(x),x]_0=f(x)and [f(x),x]_v=[[f(x),x]_(v-1),x]. f is called v- commuting on a set A if [f(x),x]_v=0 for all x in A. Let R be a prime ring with involution * of char(R) not equal to 2, with skew element K, and extended centroid C. If f is an additivemap from K into K such that f is v-commuting on K, and char(R)=0 or char(R)>v,then there exist a in C and an additive map b from K into C such that f(

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27

黃惟魯. "Strong Commutativity Preserving Maps On Skew Elements Of Matrix Algebras." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/90038310093430414065.

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碩士<br>國立彰化師範大學<br>數學系所<br>99<br>Abstract (Part1) We investigate strong commutativity preserving maps on skew elements of matrix algebras over an algebraically closed field of characteristic not 2. The exceptional cases are also illustrated.

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28

Sahu, Girish Kumar. "Static and free vibration analysis of laminated composite skew plate with and without cutout." Thesis, 2013. http://ethesis.nitrkl.ac.in/5206/1/211ME1178.pdf.

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Most of the structures generally under severe static and dynamic loading and different constrained conditions during their service life. This may lead to bending, buckling and vibration of the structure. Therefore, it is necessary to predict the static and vibration responses of laminated composite plates/skew plates precisely with less computational cost and good accuracy of these complex structures and. A suitable finite element model is proposed and developed based on first order shear deformation theory using ANSYS parametric design language (APDL) code. This is well that, the theory accou

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29

Ogedengbe, Emmanuel Olakunle Busayo. "Non-inverted skew upwind scheme for numerical heat transfer and fluid flow simulations." Thesis, 2006. http://hdl.handle.net/1993/272.

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This thesis studies advection modeling for heat transfer and fluid flow problems using a new Non--Inverted Skew Upwind Scheme (called NISUS). Variants of the new scheme are formulated and developed with 8-noded hexahedral elements using the Finite Element Method (FEM)and rectangular elements based on a Finite Volume Method (FVM). A new method of mass weighting to predict convective fluxes of each scalar from the nodal point values is developed. Due to an explicit representation in terms of nodal variables, local inversion of the upwind coefficient matrix is not needed. Also, this thesis evalua

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