Дисертації з теми "Imact dynamics"
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Wagg, David James. "Vibro-impact dynamics of engineering systems." Thesis, University College London (University of London), 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314220.
Повний текст джерелаYeow, Hoe Chian. "Soil classification through dynamic soil signatures." Thesis, University of Aberdeen, 1990. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU031990.
Повний текст джерелаAnandika, Muhammad Nevin. "An Experimental Investigation of the Impact of Random Spacing Errors onthe Transmission Error of Spur and Helical Gear Pairs." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1574680868815187.
Повний текст джерелаKnudsen, Jakob. "Vibro-impact dynamics of fretting wear." Licentiate thesis, Luleå tekniska universitet, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-18592.
Повний текст джерелаGodkänd; 2001; 20070225 (ysko)
DI, BENEDETTO GIOVANNI. "Impact dynamics of tool steel penetrators." Doctoral thesis, Politecnico di Torino, 2017. http://hdl.handle.net/11583/2678424.
Повний текст джерелаGao, Fan. "The Impact Dynamics of Weakly Charged Droplets." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/92888.
Повний текст джерелаDoctor of Philosophy
Electric charges are often found in naturally or artificially formed droplets, such as raindrops, waterfall, and inkjet printer. Neutral droplets impact on flat surfaces will usually trap a bubble inside because of the viscosity of air. The air bubble entrapped can be ignored if the droplet is water because the air bubble will eventually pinch-off. However, if the droplet is metal or some other viscous liquid, the air bubble will stay inside the liquid. This entrapped air bubble is undesired under some circumstances. For example, the existence of air bubble during metal 3D printing can influence the physical property. I show that the delicate gas thin film can be fundamentally altered for even weakly charged droplets both experimentally and numerically. As the charge level is raised above a critical level of about 1% of the maximum charges a droplet can carry for representative impact conditions, the electric stress will dominate the deformation of droplet. A conical liquid tip forms at the droplet bottom, avoiding the entrapment of air bubble. The critical charge level is experimentally proved to be only dependent on the gas viscosity and impact velocity. The deformation applies to common liquids and molten alloy droplets. Even dielectric surfaces can also induce conical deformation. The charged droplets can also deform upon hydrophobic surfaces, and increase the contact time on hydrophobic surfaces or even avoid bouncing.
Murias, dos Santos Antonio E. Ferrand de Almeida. "Intertidal ecology of northern Portuguese rocky shores." Thesis, University of Southampton, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.326590.
Повний текст джерелаSoundranayagam, Sally Ann. "Investigation of nonlinear transformation of impulses in impact units for improvement of hammer drill performance." Thesis, Loughborough University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324489.
Повний текст джерелаMatzinger, Thomas. "An Overview of Body Armor and Single Plate Impact Dynamics." DigitalCommons@CalPoly, 2018. https://digitalcommons.calpoly.edu/theses/1808.
Повний текст джерелаEmms, Rhys Mullin. "Impact of Plasma Dynamics On Femtosecond Filamentation." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/35126.
Повний текст джерелаQiu, Jin 1974. "Modeling of plate impact dynamics and noise." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/80514.
Повний текст джерелаFeroz, Kottamal Thanduparakal. "Impact dynamics of rods, beams and panels." Thesis, University of Manchester, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.488081.
Повний текст джерелаSharker, Saberul Islam. "Water Entry Impact Dynamics of Diving Birds." DigitalCommons@USU, 2017. https://digitalcommons.usu.edu/etd/6441.
Повний текст джерелаBARDINI, LAURA. "Impact of hyporheic zones on nutrient dynamics." Doctoral thesis, Politecnico di Torino, 2013. http://hdl.handle.net/11583/2507376.
Повний текст джерелаWheeler, Jeffrey M. "Nanoindentation under dynamic conditions." Thesis, University of Cambridge, 2009. https://www.repository.cam.ac.uk/handle/1810/218320.
Повний текст джерелаEriksson, Johan. "Experimental and numerical studies of nonsmooth mechanical systems : applications of dimension estimation." Licentiate thesis, Stockholm, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-288.
Повний текст джерелаSim, Min Kyu. "Empirical findings in asset price dynamics revealed by quantitative modelling." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/54302.
Повний текст джерелаMoore, Matthew Richard. "New mathematical models for splash dynamics." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:c94ff7f2-296a-4f13-b04b-e9696eda9047.
Повний текст джерелаMovahedi-Lankarani, Hamid. "Canonical equations of motion and estimation of parameters in the analysis of impact problems." Diss., The University of Arizona, 1988. http://hdl.handle.net/10150/184490.
Повний текст джерелаMalik, M. A. A. "Limit order book dynamics and market impact estimation." Thesis, University of Essex, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.571506.
Повний текст джерелаPotter, Andrew Thomas. "The impact of supply chain dynamics on transport." Thesis, Cardiff University, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.440759.
Повний текст джерелаSkeppström, Lehto Hugo, and Richard Hedlund. "Impact of Vehicle Dynamics Modelling on Feature Based SLAM for Autonomous Racing." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-262646.
Повний текст джерелаI autonom racing är det viktigt att kunna lokalisera fordonet med hög noggrannhet samtidigt som en karta över banan skapas. Den här informationen kan vidare bli hanterad av planerings- och reglersystem för att uppfylla autonom racing fullt ut. Den kinematiska modellen är en vanligt förekommande rörelsemodell i SLAM. Den är däremot en bristande representation av fordonet vid höga laterala accelerationer eftersom modellen enbart är baserad på trigonometriska samband. Det här masterarbetet undersöker den kinematiska modellens påverkan vid olika manövrar och huruvida den dynamiska modellen, som modellerar däckkrafterna, kan förbättra prestandan. En EKF-SLAM algorithm innehållande den kinematiska- och dynamiska modellen implementerades på en utvecklingsplattform. Estimeringsnoggrannheten av positionen och orienteringen jämfördes vid typiska manövrar för racingscenarier. Resultatet visade att estimeringsnoggrannheten av positionen och orienteringen var generellt sett lika vid användandet av antingen den kinematiska eller den dynamiska modellen. Implikationerna av att byta från den kinematiska modellen till den dynamiska modellen vid höga glidvinklar, resulterade i en signifikant bättre estimeringsnoggrannhet av positionen och orienteringen vid körning i en okänd miljö. Emellertid så var effekterna av att byta till en dynamisk modell insignifikanta vid körning i en känd miljö. Implikationerna av denna studie föreslår att under det första varvet av racingbanan byta från den kinematiska modellen till den dynamiska vid höga laterala accelerationer. Under kommande varv har valet av fordonsmodell mindre effekt. Nyckelord: SLAM, EKF-SLAM, lokalisering, estimering, fordonsmodellering, kinematisk modell, dynamisk modell, autonom racing.
Jafri, Syed M. "Modeling of impact dynamics of tennis ball with a flat surface." Thesis, Texas A&M University, 2003. http://hdl.handle.net/1969.1/2441.
Повний текст джерелаLi, Kuinian. "Impact dampers for structural dynamic control." Thesis, University of Bath, 2004. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.409881.
Повний текст джерелаZhu, Ling. "Dynamic inelastic behaviour of ship plates in collision." Thesis, University of Glasgow, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324960.
Повний текст джерелаGebhardt, Christoph R. "Reactive cluster impact dynamics and ion processes investigated by cluster impact mass spectrometry." [S.l. : s.n.], 2000. http://deposit.ddb.de/cgi-bin/dokserv?idn=962138657.
Повний текст джерелаCox, Simon John. "Pressure impulses caused by wave impact." Thesis, University of East Anglia, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266731.
Повний текст джерелаAriyo, Adeyemi Idowu. "Droplet Dynamics of Aqueous Polymeric Solutions on Solid Surfaces." University of Cincinnati / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1236212747.
Повний текст джерелаModarres, Najafabadi Seyed Ali. "Dynamics modelling and analysis of impact in multibody systems." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=115886.
Повний текст джерелаFurther, based on the above analysis approach, we introduce a new interpretation of the energetic coefficient of restitution, specially applicable to contact involving multibody systems. This interpretation generalizes the concept of the energetic coefficient of restitution and allows for consideration of simultaneous multiple-point contact scenarios. Moreover, based on the concept of the generalized energetic coefficient of restitution, the contact modes and the post-impact state of planar single-point impact are determined. Further, the problem of simultaneous multiple-point impact is considered, where it is shown that our approach can also be advantageous to characterize the dynamics of interaction in such systems.
The use and applicability of the approach reported are further investigated by conducting an experimental study on a robotic testbed. The open architecture of the testbed allows us to perform various contact experiments, such as single- and multiple-point impact scenarios, with different pre-impact configurations and velocities. The kinematic and dynamic models of the system have been developed and implemented for real-time analysis. It is shown that impact between multibody systems is considerably affected by not only the local dynamics characteristics of the interacting bodies, but also the (global) configuration of the interacting multibody systems. The reported results suggest that the material presented herein offers a useful means to characterize impact in complex systems.
Ghazavi, M. R. "Pin dynamics and impact in revolute joints with clearance." Thesis, University of Bath, 1990. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.760604.
Повний текст джерелаKamarainen, Outi Katriina. "Dynamics of ligand-protein interactions : impact on drug discovery." Thesis, University of Leeds, 2017. http://etheses.whiterose.ac.uk/18445/.
Повний текст джерелаYang, Yongqian. "Impact of Patchy Vegetation on Wave and Runup Dynamics." Diss., Virginia Tech, 2016. http://hdl.handle.net/10919/72278.
Повний текст джерелаPh. D.
GATNE, KALPAK PRAKASH. "EXPERIMENTAL INVESTIGATION OF DROPLET IMPACT DYNAMICS ON SOLID SURFACES." University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1163531264.
Повний текст джерелаLee, Gordon. "The theoretical and numerical analysis of impact oscillators." Thesis, University of Bristol, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336875.
Повний текст джерелаZhu, Bin. "p-Version finite elements and applications in structural impact and damage detection /." access full-text access abstract and table of contents, 2005. http://libweb.cityu.edu.hk/cgi-bin/ezdb/thesis.pl?phd-bc-b19887565a.pdf.
Повний текст джерела"Submitted to Department of Building and Construction in partial fulfillment of the requirements for the degree of Doctor of Philosophy" Includes bibliographical references (leaves 253-269)
Maak, Travis Gardner. "Dynamic Intervertebral Foramen Narrowing During Whiplash." Yale University, 2006. http://ymtdl.med.yale.edu/theses/available/etd-06282006-113354/.
Повний текст джерелаLee, Eunjeong. "Force and impact control for robot manipulators with unknown dynamics and disturbances." Case Western Reserve University School of Graduate Studies / OhioLINK, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=case1057933316.
Повний текст джерелаDjahansouzi, B. "Effect of dynamic response on impact damage." Thesis, Imperial College London, 1988. http://hdl.handle.net/10044/1/47033.
Повний текст джерелаSaleh, Almahdi. "Assessment of Nonlinear Damping Elements for Vibro-Impacts inAutomotive Torsional Systems with Discontinuous Nonlinearities." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1449148151.
Повний текст джерелаŠafr, Karel. "Analýza dopadů regulací pomocí dynamického input-output modelu." Master's thesis, Vysoká škola ekonomická v Praze, 2013. http://www.nusl.cz/ntk/nusl-194207.
Повний текст джерелаRupčík, Jan. "Deformační člen formulového vozidla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231790.
Повний текст джерелаKennedy, Eric Allen. "Lateral and Posterior Dynamic Bending of the Mid-Shaft Femur: Fracture Risk Curves for the Adult Population." Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/32216.
Повний текст джерелаMaster of Science
DOMMATA, SANDEEP KUMAR GOUD, and SAMARA CHANDRA HASON KONAGALA. "IMPACT OF GROUP DYNAMICS ON TEAMS WORKING IN SOFTWARE ENGINEERING." Thesis, Blekinge Tekniska Högskola, Institutionen för programvaruteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-4696.
Повний текст джерелаSANDEEP KUMAR GOUD DOMMATA: +91-9848783435
Stoenescu, Eleonor D. Marghitu Dan B. "Dynamics and synthesis of kinematic chains with impact and clearance." Auburn, Ala., 2005. http://repo.lib.auburn.edu/EtdRoot/2005/SPRING/Mechanical_Engineering/Dissertation/STOENESCU_ELEONOR_32.pdf.
Повний текст джерелаWard, Zoe. "Exploring the impact of heterogeneities on HIV dynamics within host." Thesis, University of Bath, 2011. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.550615.
Повний текст джерелаKundu, Reema. "Impact of engine icing on jet engine compressor flow dynamics." Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/54870.
Повний текст джерелаWarner, Sharon Elaine. "Foot design, locomotor impact dynamics and pathology in large mammals." Thesis, Royal Veterinary College (University of London), 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.618328.
Повний текст джерелаAoki, Takaaki. "Molecular Dynamics Simulation of Cluster Ion Impact on Solid Surface." Kyoto University, 2000. http://hdl.handle.net/2433/8942.
Повний текст джерелаIn this thesis, the impact process of cluster ions on solid surfaces was studied using molecular dynamics (MD) simulation. Cluster is an aggregated material which consists of a few to thousand atoms. The impact process of cluster ion on solid surface is of great interest because the effect of impact by cluster ion cannot be explained by the summation of individual monomer ions, and it is termed as 'nonlinear effect.' In order to understand the nonlinear effect by cluster, the dynamics of collisional process between cluster and solid surface should be examined. MD simulation is one method of computer simulation to solve numerically the Newton's equation of motion for each atom in the system using difference equation technique, so MD can make it possible to trace the time evolution of coordinates and velocity for every atom with high resolution. The basic theory of molecular dynamics and the acceleration method are described in chapter 2. For this study, the original MD program was developed, which can accelerate the calculation speed of collisional process of high-energy atoms with a solid surface by applying different timestep to each atom depending on its velocity. Due to this acceleration technique and recent progress in computers, it can be possible to simulate the system with a large number of atoms, or more than hundred simulations in order to obtain statistics. In the following chapters, MD simulation is used to examine the impacts of various types of clusters on a number of well defined substrates. Chapter 3 describes the typical impact process of cluster on solid surface examined using large argon cluster and silicon substrate. The differences between cluster and monomer impact are shown in penetration range, damage formation and sputtering. The energy dependence of penetration depth of cluster was examined and it was fond that the penetration depth is proportional to the cube root of the incident energy. This is due to a large number of collisions between cluster atoms and surface atoms, which cause isotropic propagation of incident energy. Through this multiple-collision process, a crater-shaped damage is formed on the surface. In chapter 4, the impacts of carbon cluster onto carbon substrate are examined both by MD simulation and experimentally. Carbon is a suitable material to generate well-defined small size clusters such as C7 , C19 and C60 in experiments. It was found that the penetration depth of carbon clusters with several keV/atom is similar to that of monomer ion, but a larger number of displacements are formed with the cluster size of larger than 10. From this study, the boundary size of cluster size where a cluster shows the nonlinear effect is discussed. Shallow junction formation by boron cluster implantation into silicon substrate is discussed in chapter 5. Decaborane (B10H14) is a stable material of boron cluster and each boron atom can be irradiated with 1/10 energy of the total acceleration energy. This implies that the low-energy implantation can be obtained easily. The penetration depth by B10H14 is shown to be the same as that by boron monomer ions with same acceleration energy per atom. Furthermore, it is found that B10H14 implantation can form larger number of displacements in the near surface region, with lower atomic dose than monomer ions. The high-yield damage formation on the surface suggested to suppress the transient enhanced diffusion (TED). These properties of B10H14 implantation are considered as advantageous for small LSI fabrication. In chapter 6, the impact of uorine cluster and neon cluster onto silicon substrate are compared, in order to examine the sputtering effect by reactive cluster ion. Fluorine cluster shows higher sputtering yield than both uorine atom and neon cluster at low energy region. It is suggested that the high-density atomic and energy deposition by cluster ion impact prompt the formation of volatile silicon- uoride materials and desorption of uoride materials. As the incident energy increases, uorine and neon cluster shows similar sputtering yield because the physical sputtering effect through atomic collisions is major effect in high energy region. From these results, characteristics of cluster ion impact depending on incident energy, cluster size and cluster and substrate species are discussed.
Kyoto University (京都大学)
0048
新制・課程博士
博士(工学)
甲第8326号
工博第1891号
新制||工||1165(附属図書館)
UT51-2000-F230
京都大学大学院工学研究科電子物性工学専攻
(主査)教授 山田 公, 教授 今西 信嗣, 助教授 高岡 義寛
学位規則第4条第1項該当
Clapham, Hannah Eleanor. "Modelling dengue infection dynamics and the impact of control measures." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/18022.
Повний текст джерелаKaiser, Thomas. "Impact of Flow Rotation on Flame Dynamics and Hydrodynamic Stability." Thesis, Toulouse, INPT, 2019. http://oatao.univ-toulouse.fr/24115/1/Kaiser_Thomas.pdf.
Повний текст джерела