Recent advancements in flapping mechanism and wing design of micro aerial vehicles

Yousaf, Rizwan; Shahzad, Aamer; Mumtaz, Muhammad Zubair; Javed, Ali

doi:10.1177/0954406220960783

Cited by 12 publications

(9 citation statements)

References 121 publications

(164 reference statements)

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“…It is also made sure that the materials were also cost-effective and to guarantee its accessibility does not influence the creation of the MAV on the business scale. Various materials were used in the design of the wing structure in a series of studies, with polyethylene terephthalate (PET) being the best choice for the wing design (Yousaf et al , 2020). For these studies, the wings are made up of a polyethylene terephthalate sheet of 100 microns.…”

Section: Methodsmentioning

confidence: 99%

Effect of chord-wise flexibility in the lift generation of flapping MAV with membrane wing

S.¹,

R.²

2022

AEAT

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Purpose The purpose of this study is to experimentally analyse the effect of flexible and stiffened membrane wings in the lift generation of flapping micro air vehicle (MAV). Design/methodology/approach This is analysed by the rectangle wing made up of polyethylene terephthalate sheets of 100 microns. MAV is tested for the free stream velocity of 2 m/s, 4 m/s, 6 m/s and k* of 0, 0.25, 1, 3, 8. This test is repeated for flapping MAV of the free flapping frequency of 2 Hz, 4 Hz, 6 Hz, 10 Hz and 12 Hz. Findings This study shows that the membrane wing with proper stiffeners can give better lift generation capacity than a flexible wing. Research limitations/implications Only a normal force component is measured, which is perpendicular to the longitudinal axis of the model. Practical implications In MAVs, the wing structures are thin and light, so the effect of fluid-structure interactions is important at low Reynold’s numbers. This data are useful for the MAV developments. Originality/value The effect of chord-wise flexibility in lift generation is the study of the effect of a flexible wing and rigid wing in MAV. It is analysed by the rectangle wing. The coefficient of normal force at different free stream conditions was analysed.

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Section: Methodsmentioning

confidence: 99%

Effect of chord-wise flexibility in the lift generation of flapping MAV with membrane wing

S.¹,

R.²

2022

AEAT

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“…Based on control configurations, UAVs can be categorized into (see Figure 1 ): single-rotor [ 15 , 16 , 17 , 18 ]: helicopter; multi-rotor [ 19 , 20 , 21 , 22 , 23 , 24 ]: tricopter, quadrotor, hexacopter, etc. ; fixed-wing [ 25 , 26 , 27 ]; hybrid [ 28 , 29 , 30 , 31 ]; flapping wings [ 32 , 33 , 34 , 35 , 36 , 37 , 38 ]: Ornithopters and Entomopters. …”

Section: Uav Types Autonomy and System Architecturesmentioning

confidence: 99%

Towards Fully Autonomous UAVs: A Survey

Elmokadem

Savkin

2021

Sensors

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Unmanned Aerial Vehicles have undergone rapid developments in recent decades. This has made them very popular for various military and civilian applications allowing us to reach places that were previously hard to reach in addition to saving time and lives. A highly desirable direction when developing unmanned aerial vehicles is towards achieving fully autonomous missions and performing their dedicated tasks with minimum human interaction. Thus, this paper provides a survey of some of the recent developments in the field of unmanned aerial vehicles related to safe autonomous navigation, which is a very critical component in the whole system. A great part of this paper focus on advanced methods capable of producing three-dimensional avoidance maneuvers and safe trajectories. Research challenges related to unmanned aerial vehicle development are also highlighted.

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“…• fixed-wing [25][26][27] • hybrid [28][29][30][31] • flapping wings [32][33][34][35][36][37][38]: Ornithopters and Entomopters Single-rotor aerial vehicles such as helicopters have not been utilized much as UAV platforms.…”

Section: Uav Types Autonomy and System Architecturesmentioning

confidence: 99%

Advanced Algorithms of Collision Free Navigation and Flocking for Autonomous UAVs

Elmokadem¹

2021

Preprint

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Unmanned aerial vehicles (UAVs) have become very popular for many military and civilian applications including in agriculture, construction, mining, environmental monitoring, etc. A desirable feature for UAVs is the ability to navigate and perform tasks autonomously with least human interaction. This is a very challenging problem due to several factors such as the high complexity of UAV applications, operation in harsh environments, limited payload and onboard computing power and highly nonlinear dynamics. Therefore, more research is still needed towards developing advanced reliable control strategies for UAVs to enable safe navigation in unknown and dynamic environments. This problem is even more challenging for multi-UAV systems where it is more efficient to utilize information shared among the networked vehicles. Therefore, the work presented in this report contributes towards the state-of-the-art in UAV control for safe autonomous navigation and motion coordination of multi-UAV systems. The first part of this report deals with single-UAV systems. Initially, a hybrid navigation framework is developed for autonomous mobile robots using a general 2D nonholonomic unicycle model that can be applied to different types of UAVs, ground vehicles and underwater vehicles considering only lateral motion. Then, the more complex problem of three-dimensional (3D) collision-free navigation in unknown/dynamic environments is addressed. To that end, advanced 3D reactive control strategies are developed adopting the sense-and-avoid paradigm to produce quick reactions around obstacles. A special case of navigation in 3D unknown confined environments (i.e. tunnel-like) is also addressed. General 3D kinematic models are considered in the design which makes these methods applicable to different UAV types in addition to underwater vehicles. Moreover, different implementation methods for these strategies with quadrotor-type UAVs are also investigated considering UAV dynamics in the control design. Practical experiments and simulations were carried out to analyze the performance of the developed methods. The second part of this report addresses safe navigation for multi-UAV systems. Distributed motion coordination methods of multi-UAV systems for flocking and 3D area coverage are developed. These methods offer good computational cost for large-scale systems. Simulations were performed to verify the performance of these methods considering systems with different sizes.

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Recent advancements in flapping mechanism and wing design of micro aerial vehicles

Cited by 12 publications

References 121 publications

Effect of chord-wise flexibility in the lift generation of flapping MAV with membrane wing

Effect of chord-wise flexibility in the lift generation of flapping MAV with membrane wing

Towards Fully Autonomous UAVs: A Survey

Advanced Algorithms of Collision Free Navigation and Flocking for Autonomous UAVs

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