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Biomechanics and Fluid Dynamics of Amphibious Locomotion in Microvelia
Biomechanics and Fluid Dynamics of Amphibious Locomotion in Microvelia
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105519
- ISBN
- 9798263341718
- DDC
- 553.7
- 서명/저자
- Biomechanics and Fluid Dynamics of Amphibious Locomotion in Microvelia
- 발행사항
- [Sl] : Georgia Institute of Technology, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 129 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-05, Section: B.
- 주기사항
- Advisor: Bhalma, Saad.
- 학위논문주기
- Thesis (Ph.D.)--Georgia Institute of Technology, 2024.
- 초록/해제
- 요약Unique life inhabits the interface between air and water, presenting unique challenges and solutions. These specimen [1, 2] as well as their environment [3, 4] are known as the neuston. For the insects living in the neuston layer, long, hairy legs that leverage surfacetension to support their weight on the water's surface provide the solution. One such insectis the Mirovelia, which uses the alternating tripod gait to walk on the water's surface. This gait, shared by many terrestrial insects like ants and cockroaches, allows the Mirovelia to move efficiently on both land and water-a feat other semiaquatic insects struggle with.We explore how the Mirovelia maneuvers its body to thrive in both environments, utilizing water's surface for forward propulsion.In the neuston layer, various animals employ different techniques to walk on water.Some animals slap the water's surface fast enough to avoid sinking [5, 6, 7, 8, 9], while smaller creatures, like spiders [10, 11, 12, 13] and insects [14, 15, 16], leverage surface tension. They often use either the rowing gait [14, 17] or the alternating tripod gait [14,16]. Since the rowing gait is not optimized for land locomotion [16], we study the M.americana to understand how the alternating tripod gait enables amphibious movement.The focus of this dissertation is the biomechanics and fluid dynamics of Mirovelia amer-icana. Specifically, we examine three aims: the biomechanics of amphibious locomotion in M. americana, the specialized leg dynamics of M. americana on water, and the vortex interaction in M. americana on water.First, we explore how M. americana adjusts its gait to walk on land, water, and duckweed-covered water, a common neuston inhabitant. We compare the differences in body and leg speed across these surfaces and examine how M. americana adjusts its joint angles and stride frequency to navigate rough and patchy terrain. From these experiments, we discover that M. americana bend their front and hind tibiofemoral joint at higher amplitudes when walking on rough or heterogeneous substrates as opposed to walking on water. The front egs move their legs at a higher amplitude on rough and heterogeneous surfaces compared to water, while the hind legs decrease their strides on rough or heterogeneous surfaces.Next, we investigate the role of each leg pair in M. americana. By removing the tarsus(foot) or pairs of tarsi, we evaluate the impact on the insect's speed and directionality,determining which legs are primarily responsible for balance, propulsion, and stabilizing direction. Through experiments, we discover that the middle legs act as the main propellers in the system while the hind legs act as rudders. Therefore, the middle legs are needed for movement and speed while the hind legs stabilize direction.We then examine the fluid dynamics of the alternating tripod gait through fluid visu-alization and image analysis. We measure vortex intensity via circulation and track the placement of the middle and hind legs, discovering that the hind legs step into vortices created by the anterior middle legs. We analyze the physics of this wake recapture and its impact on thrust on the water's surface. Our models suggest that M.Americana gain thrust when the hind legs recapture the vortex created by the middle leg.In conclusion, the findings from this research provide insights into the biomechanics and fluid dynamics of M.americana, which can influence the design of amphibious robots.Future research ideas in studying M. americana for biology, biophysics, biomechanics, elastocapillarity, and robotics are also proposed.
- 일반주제명
- Water
- 일반주제명
- Vortices
- 일반주제명
- Fluid dynamics
- 일반주제명
- Biomechanics
- 일반주제명
- Legs
- 일반주제명
- Fluid mechanics
- 기본자료저록
- Dissertations Abstracts International. 87-05B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520260202105519
■006m o d
■007cr#unu||||||||
■020 ▼a9798263341718
■035 ▼a(MiAaPQ)AAI32309463
■035 ▼a(MiAaPQ)GeorgiaTech76861
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a553.7
■1001 ▼aO'Neil, Johnathan.
■24510▼aBiomechanics and Fluid Dynamics of Amphibious Locomotion in Microvelia
■260 ▼a[Sl]▼bGeorgia Institute of Technology▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a129 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-05, Section: B.
■500 ▼aAdvisor: Bhalma, Saad.
■5021 ▼aThesis (Ph.D.)--Georgia Institute of Technology, 2024.
■520 ▼aUnique life inhabits the interface between air and water, presenting unique challenges and solutions. These specimen [1, 2] as well as their environment [3, 4] are known as the neuston. For the insects living in the neuston layer, long, hairy legs that leverage surfacetension to support their weight on the water's surface provide the solution. One such insectis the Mirovelia, which uses the alternating tripod gait to walk on the water's surface. This gait, shared by many terrestrial insects like ants and cockroaches, allows the Mirovelia to move efficiently on both land and water-a feat other semiaquatic insects struggle with.We explore how the Mirovelia maneuvers its body to thrive in both environments, utilizing water's surface for forward propulsion.In the neuston layer, various animals employ different techniques to walk on water.Some animals slap the water's surface fast enough to avoid sinking [5, 6, 7, 8, 9], while smaller creatures, like spiders [10, 11, 12, 13] and insects [14, 15, 16], leverage surface tension. They often use either the rowing gait [14, 17] or the alternating tripod gait [14,16]. Since the rowing gait is not optimized for land locomotion [16], we study the M.americana to understand how the alternating tripod gait enables amphibious movement.The focus of this dissertation is the biomechanics and fluid dynamics of Mirovelia amer-icana. Specifically, we examine three aims: the biomechanics of amphibious locomotion in M. americana, the specialized leg dynamics of M. americana on water, and the vortex interaction in M. americana on water.First, we explore how M. americana adjusts its gait to walk on land, water, and duckweed-covered water, a common neuston inhabitant. We compare the differences in body and leg speed across these surfaces and examine how M. americana adjusts its joint angles and stride frequency to navigate rough and patchy terrain. From these experiments, we discover that M. americana bend their front and hind tibiofemoral joint at higher amplitudes when walking on rough or heterogeneous substrates as opposed to walking on water. The front egs move their legs at a higher amplitude on rough and heterogeneous surfaces compared to water, while the hind legs decrease their strides on rough or heterogeneous surfaces.Next, we investigate the role of each leg pair in M. americana. By removing the tarsus(foot) or pairs of tarsi, we evaluate the impact on the insect's speed and directionality,determining which legs are primarily responsible for balance, propulsion, and stabilizing direction. Through experiments, we discover that the middle legs act as the main propellers in the system while the hind legs act as rudders. Therefore, the middle legs are needed for movement and speed while the hind legs stabilize direction.We then examine the fluid dynamics of the alternating tripod gait through fluid visu-alization and image analysis. We measure vortex intensity via circulation and track the placement of the middle and hind legs, discovering that the hind legs step into vortices created by the anterior middle legs. We analyze the physics of this wake recapture and its impact on thrust on the water's surface. Our models suggest that M.Americana gain thrust when the hind legs recapture the vortex created by the middle leg.In conclusion, the findings from this research provide insights into the biomechanics and fluid dynamics of M.americana, which can influence the design of amphibious robots.Future research ideas in studying M. americana for biology, biophysics, biomechanics, elastocapillarity, and robotics are also proposed.
■590 ▼aSchool code: 0078.
■650 4▼aWater
■650 4▼aVortices
■650 4▼aFluid dynamics
■650 4▼aBiomechanics
■650 4▼aLegs
■650 4▼aFluid mechanics
■690 ▼a0648
■690 ▼a0204
■71020▼aGeorgia Institute of Technology.
■7730 ▼tDissertations Abstracts International▼g87-05B.
■790 ▼a0078
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360400▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
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