Staff View
The effects of coaxial propellers for the propulsion of multirotor systems

Descriptive

TitleInfo
Title
The effects of coaxial propellers for the propulsion of multirotor systems
Name (type = personal)
NamePart (type = family)
Holzsager
NamePart (type = given)
Jonathan Elliot
NamePart (type = date)
1994-
DisplayForm
Jonathan Elliot Holzsager
Role
RoleTerm (authority = RULIB)
author
Name (type = personal)
NamePart (type = family)
Diez-Garias
NamePart (type = given)
Francisco Javier
DisplayForm
Francisco Javier Diez-Garias
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
chair
Name (type = corporate)
NamePart
Rutgers University
Role
RoleTerm (authority = RULIB)
degree grantor
Name (type = corporate)
NamePart
School of Graduate Studies
Role
RoleTerm (authority = RULIB)
school
TypeOfResource
Text
Genre (authority = marcgt)
theses
OriginInfo
DateCreated (qualifier = exact)
2017
DateOther (qualifier = exact); (type = degree)
2017-10
CopyrightDate (encoding = w3cdtf); (qualifier = exact)
2017
Place
PlaceTerm (type = code)
xx
Language
LanguageTerm (authority = ISO639-2b); (type = code)
eng
Abstract (type = abstract)
Multirotor vehicles offer access to the skies for users across all walks of life and industry due to their simplicity, availability, and low cost. Although advancements continue, developers are slowed by the limits of available propulsion systems. Coaxial rotors stack propellers over one another to provide more thrust without increasing a vehicle’s footprint nor battery voltage. Previous investigations studied the thrust lost to coaxial rotor systems, wherein downstream propellers produced less thrust than their predecessors. This experimental study examines the effects of propeller spin direction, separation distance, motor speed, and propeller pitch to explore different methods of recuperating thrust losses. During testing, each propeller’s thrust, current draw, and rotational speed was measured. Results show that for 13-inch propellers, reducing the distance between the planes of rotation from 8 to 2 inches produced variations up to 123 grams of thrust, representing a 4.5% improvement. Controlling the motors’ speeds independently confirmed that a coaxial pair will provide thrust most efficiently if the back (downstream) motor is operated at a higher throttle setting than the front (upstream) motor. Similarly, a coaxial pair will provide more thrust if the back propeller’s pitch is higher than the front propeller’s pitch. This was applied to the effect that the back propeller in a coaxial pair provided 119% of the thrust of the front propeller. This allowed for a coaxial pair’s thrust to range between 1790 and 2530 grams, allowing for a 41% increase in thrust from the worst case to the best case. When varying propeller pitch was applied to six different arrangements of four propellers, maximum thrusts ranged between 2960 and 4010 grams. One of these coaxial quadruplets was tested to provide a total of 401% of the thrust of its front propeller.
Subject (authority = RUETD)
Topic
Mechanical and Aerospace Engineering
RelatedItem (type = host)
TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier (type = RULIB)
ETD
Identifier
ETD_8515
PhysicalDescription
Form (authority = gmd)
electronic resource
InternetMediaType
application/pdf
InternetMediaType
text/xml
Extent
1 online resource (vi, 53 p. : ill.)
Note (type = degree)
M.S.
Note (type = bibliography)
Includes bibliographical references
Note (type = statement of responsibility)
by Jonathan Elliot Holzsager
RelatedItem (type = host)
TitleInfo
Title
School of Graduate Studies Electronic Theses and Dissertations
Identifier (type = local)
rucore10001600001
Location
PhysicalLocation (authority = marcorg); (displayLabel = Rutgers, The State University of New Jersey)
NjNbRU
Identifier (type = doi)
doi:10.7282/T3D79FJ6
Genre (authority = ExL-Esploro)
ETD graduate
Back to the top

Rights

RightsDeclaration (ID = rulibRdec0006)
The author owns the copyright to this work.
RightsHolder (type = personal)
Name
FamilyName
Holzsager
GivenName
Jonathan
MiddleName
Elliot
Role
Copyright Holder
RightsEvent
Type
Permission or license
DateTime (encoding = w3cdtf); (qualifier = exact); (point = start)
2017-10-03 16:23:13
AssociatedEntity
Name
Jonathan Holzsager
Role
Copyright holder
Affiliation
Rutgers University. School of Graduate Studies
AssociatedObject
Type
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.
RightsEvent
DateTime (encoding = w3cdtf); (qualifier = exact); (point = start)
2017-10-31
DateTime (encoding = w3cdtf); (qualifier = exact); (point = end)
2018-10-31
Type
Embargo
Detail
Access to this PDF has been restricted at the author's request. It will be publicly available after October 31st, 2018.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
Back to the top

Technical

RULTechMD (ID = TECHNICAL1)
ContentModel
ETD
OperatingSystem (VERSION = 5.1)
windows xp
CreatingApplication
Version
1.5
DateCreated (point = end); (encoding = w3cdtf); (qualifier = exact)
2017-10-03T16:00:40
DateCreated (point = end); (encoding = w3cdtf); (qualifier = exact)
2017-10-03T16:00:40
ApplicationName
Microsoft® Word 2013
Back to the top
Version 8.5.5
Rutgers University Libraries - Copyright ©2024