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Nonsmooth impact mechanics of a free falling body
Descriptive
TypeOfResource
Text
TitleInfo
(ID = T-1)
Title
Nonsmooth impact mechanics of a free falling body
Identifier
ETD_3083
Identifier
(type = hdl)
http://hdl.rutgers.edu/1782.1/rucore10001600001.ETD.000057701
Language
LanguageTerm
(authority = ISO639-2);
(type = code)
eng
Genre
(authority = marcgt)
theses
Subject
(ID = SBJ-1);
(authority = RUETD)
Topic
Mechanical and Aerospace Engineering
Subject
(ID = SBJ-2);
(authority = ETD-LCSH)
Topic
Nonlinear mechanics
Subject
(ID = SBJ-3);
(authority = ETD-LCSH)
Topic
Force and energy
Subject
(ID = SBJ-4);
(authority = ETD-LCSH)
Topic
Tribology
Subject
(ID = SBJ-5);
(authority = ETD-LCSH)
Topic
Contact mechanics
Abstract
(type = abstract)
In this study, several models are developed for analyzing the oblique impact of a container dropped from a height above the impacting surface. The governing equations for impact of rigid bodies in the presence of friction are developed. A clear relationship for determining sliding behavior is presented. For both frictional regimes, the dependence of the energy loss on the initial parameters is analyzed. Several vibrational impact models are presented and analyzed. These models produce a transient description of the impact force and aid in the determination of the ratio of the cushion and cargo stiffness which produce the best impact outcome. The effect of aerodynamic drag prior to impact is also analyzed. The equations governing the aerodynamics form a set of coupled nonlinear differential equations. The numerical solution of these equations illustrates that there exists a point where the object’s velocity reaches a favorable minimum, which is substantially below the terminal velocity. An approximate solution, obtained by decoupling the aerodynamic equations, is presented and validated. Both the rigid body impact mechanics and the aerodynamics are combined in a simulation code capable of analyzing subsequent impact. The simulated tumbling distances for a container, which was designed for the U.S. Army, are compared to experimental drop test data. The results validate the use of the rigid body model for this type of container.
PhysicalDescription
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electronic resource
Extent
xx, 183 p. : ill.
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application/pdf
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text/xml
Note
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M.S.
Note
(type = bibliography)
Includes bibliographical references
Note
(type = vita)
Includes vita
Note
(type = statement of responsibility)
by Alexey Titovich
Name
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Titovich
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Alexey
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1987-
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author
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Alexey Titovich
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Baruh
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Haim
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chair
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Advisory Committee
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Haim Baruh
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Bottega
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William J.
Role
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internal member
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Advisory Committee
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William J. Bottega
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Elsayed
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Elsayed A.
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internal member
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Advisory Committee
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Elsayed A. Elsayed
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Rutgers University
Role
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degree grantor
Name
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Graduate School - New Brunswick
Role
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(authority = RULIB)
school
OriginInfo
DateCreated
(qualifier = exact)
2011
DateOther
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(type = degree)
2011-01
Place
PlaceTerm
(type = code)
xx
RelatedItem
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TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier
(type = RULIB)
ETD
RelatedItem
(type = host)
TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier
(type = local)
rucore19991600001
Location
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(displayLabel = Rutgers, The State University of New Jersey)
NjNbRU
Identifier
(type = doi)
doi:10.7282/T3NS0THK
Genre
(authority = ExL-Esploro)
ETD graduate
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Rights
RightsDeclaration
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The author owns the copyright to this work.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
RightsHolder
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(type = personal)
Name
FamilyName
Titovich
GivenName
Alexey
Role
Copyright Holder
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Type
Permission or license
DateTime
2010-12-24 13:42:36
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Copyright holder
Name
Alexey Titovich
Affiliation
Rutgers University. Graduate School - New Brunswick
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License
Name
Author Agreement License
Detail
I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
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Technical
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ETD
MimeType
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application/pdf
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application/x-tar
FileSize
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3276800
Checksum
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699a3daed15dcc413441728d7a90fe7111bb7d96
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