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Abstract and Physical Effects of Curvature on Dynamics of Extended Body Systems
Abstract and Physical Effects of Curvature on Dynamics of Extended Body Systems
Abstract and Physical Effects of Curvature on Dynamics of Extended Body Systems

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20260209102905
ISBN  
9798265400949
DDC  
620.004
저자명  
Day, Brian.
서명/저자  
Abstract and Physical Effects of Curvature on Dynamics of Extended Body Systems
발행사항  
[Sl] : Georgia Institute of Technology, 2023
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2023
형태사항  
250 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-05, Section: B.
주기사항  
Advisor: Matsumoto, Elisabetta.
학위논문주기  
Thesis (Ph.D.)--Georgia Institute of Technology, 2023.
초록/해제  
요약The presence of intrinsic curvature of an ambient space influences the dynamics of point particles moving through it as typically considered in applications of differential geometry in physical contexts, such as general relativity. We aim to utilize the mathematics of differential geometry to instead consider the collective curvature effects on extended body systems in some generic curved space. To this end we develop a mathematical framework which serves as the foundation of a general dynamics solver numerical toolkit in which users can simulate the dynamics of discrete extended body systems in generic curved spaces. Through analyzing the dynamics of such extended body systems we recognized a relationship between deformation of the body during its dynamics as a result of the ambient curvature. This led us to expand our mathematical model of extended bodies to include deformable bodies. We find that such deformable bodies can generate collective motion via deforming their body even in a ambient space lacking curvature. This is due to the presence of an abstract notion of curvature defined on the configuration space of the system via considering the system as being described by a mathematical object known as a fiber bundle. This revelation allows us to discuss the dynamics of such deformable control systems using the ideas of geometric mechanics. In particular, we consider recasting our system in a geometric mechanics framework to address the question of determining optimal controls of how to deform the system so as to minimize some cost function. This is based on considering the optimization problem as a variational problem whose solutions correspond to optimal controls of the system. We develop this variational approach into a numerical toolkit acting as the foundation of a more general purpose optimization toolkit for deformable control systems described by fibers bundles.
일반주제명  
Test systems
일반주제명  
Investigations
일반주제명  
Lagrange multiplier
일반주제명  
Mechanics
일반주제명  
Reynolds number
일반주제명  
Visualization
일반주제명  
Geometry
일반주제명  
Symmetry
일반주제명  
Fluid mechanics
일반주제명  
Mathematics
기타저자  
Georgia Institute of Technology.
기본자료저록  
Dissertations Abstracts International. 87-05B.
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

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■006m          o    d                
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■020    ▼a9798265400949
■035    ▼a(MiAaPQ)AAI32315643
■035    ▼a(MiAaPQ)GeorgiaTech73170
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a620.004
■1001  ▼aDay,  Brian.
■24510▼aAbstract  and  Physical  Effects  of  Curvature  on  Dynamics  of  Extended  Body  Systems
■260    ▼a[Sl]▼bGeorgia  Institute  of  Technology▼c2023
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2023
■300    ▼a250  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-05,  Section:  B.
■500    ▼aAdvisor:  Matsumoto,  Elisabetta.
■5021  ▼aThesis  (Ph.D.)--Georgia  Institute  of  Technology,  2023.
■520    ▼aThe  presence  of  intrinsic  curvature  of  an  ambient  space  influences  the  dynamics  of  point  particles  moving  through  it  as  typically  considered  in  applications  of  differential  geometry  in  physical  contexts,  such  as  general  relativity.  We  aim  to  utilize  the  mathematics  of  differential  geometry  to  instead  consider  the  collective  curvature  effects  on  extended  body  systems  in  some  generic  curved  space.  To  this  end  we  develop  a  mathematical  framework  which  serves  as  the  foundation  of  a  general  dynamics  solver  numerical  toolkit  in  which  users  can  simulate  the  dynamics  of  discrete  extended  body  systems  in  generic  curved  spaces.  Through  analyzing  the  dynamics  of  such  extended  body  systems  we  recognized  a  relationship  between  deformation  of  the  body  during  its  dynamics  as  a  result  of  the  ambient  curvature.  This  led  us  to  expand  our  mathematical  model  of  extended  bodies  to  include  deformable  bodies.  We  find  that  such  deformable  bodies  can  generate  collective  motion  via  deforming  their  body  even  in  a  ambient  space  lacking  curvature.  This  is  due  to  the  presence  of  an  abstract  notion  of  curvature  defined  on  the  configuration  space  of  the  system  via  considering  the  system  as  being  described  by  a  mathematical  object  known  as  a  fiber  bundle.  This  revelation  allows  us  to  discuss  the  dynamics  of  such  deformable  control  systems  using  the  ideas  of  geometric  mechanics.  In  particular,  we  consider  recasting  our  system  in  a  geometric  mechanics  framework  to  address  the  question  of  determining  optimal  controls  of  how  to  deform  the  system  so  as  to  minimize  some  cost  function.  This  is  based  on  considering  the  optimization  problem  as  a  variational  problem  whose  solutions  correspond  to  optimal  controls  of  the  system.  We  develop  this  variational  approach  into  a  numerical  toolkit  acting  as  the  foundation  of  a  more  general  purpose  optimization  toolkit  for  deformable  control  systems  described  by  fibers  bundles.
■590    ▼aSchool  code:  0078.
■650  4▼aTest  systems
■650  4▼aInvestigations
■650  4▼aLagrange  multiplier
■650  4▼aMechanics
■650  4▼aReynolds  number
■650  4▼aVisualization
■650  4▼aGeometry
■650  4▼aSymmetry
■650  4▼aFluid  mechanics
■650  4▼aMathematics
■690    ▼a0346
■690    ▼a0204
■690    ▼a0405
■71020▼aGeorgia  Institute  of  Technology.
■7730  ▼tDissertations  Abstracts  International▼g87-05B.
■790    ▼a0078
■791    ▼aPh.D.
■792    ▼a2023
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17365967▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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