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Articles 1 - 30 of 6510

Full-Text Articles in Engineering

Methodology To Aircraft Design – Market Study & Design Optimization, Shreyash Attarkar, Dhananjay Ahire, Tanishq Pawar, Suresh Kumar M Prof. May 2022

Methodology To Aircraft Design – Market Study & Design Optimization, Shreyash Attarkar, Dhananjay Ahire, Tanishq Pawar, Suresh Kumar M Prof.

Graduate Research in Engineering and Technology (GRET)

In the last few years Aircraft have grown to be large-scale products with an increasing number of complicated systems, components, parts, and capabilities. Every single one of them. Various fields and technologies are included. Multiple sets of tools, procedures and methods are also included, as a result, to fully define, design, and develop an aircraft A comprehensive and methodic approach is required. Aircraft design that serves as a pillar in the evolution of the life cycle A balanced system solution that satisfies the needs of the customer. To accompany these characteristics. system engineering provides an interdisciplinary organization but is still ...


Aerodynamics Of Forward Swept Wing., Muqeeth Sharif, Mohammed Abbas, Mukarram Hussain May 2022

Aerodynamics Of Forward Swept Wing., Muqeeth Sharif, Mohammed Abbas, Mukarram Hussain

Graduate Research in Engineering and Technology (GRET)

A forward-swept wing is an aircraft wing configuration in which the quarter-chord line of the wing has a forward sweep. Typically, the leading edge also sweeps forward. Forward swept wing is proposed with the goal of enhancing performance and controllability during high angle of attack perching maneuvers. Data is presented from a series of XFLR5 analysis to qualify the aerodynamic effect of forward swept over a range of angle of attack from -25º to +75º. Various graphs were obtained during this analysis which indicates that the forward swept wing configuration can achieve qualitatively different low cost perching maneuvers.


Aerodynamic Analysis Of Morphing Wing, Alugu Ganesh, Anand Paul, Akshaya Reddy May 2022

Aerodynamic Analysis Of Morphing Wing, Alugu Ganesh, Anand Paul, Akshaya Reddy

Graduate Research in Engineering and Technology (GRET)

This thesis presents a modelling and design exploration study of a novel twisting wing whose motion is enabled by a tensegrity mechanism. First, the aerodynamic characteristics of the twisting wing, which does not require control surfaces to modulate its shape, are compared with those of a conventional wing having a control surface. It is shown via computational fluid dynamics analyses that the twisting wing displays higher lift-to-drag ratio than the conventional wing and hence the twisting wing is more aerodynamically efficient. In addition, due to the reduction of discontinuous rudder surfaces, morphing wings can further improve the stealth performance. A ...


Aerodynamics Of Cricket Ball, Shiva Shanker, Ramagiri Sai Vamshidher, Potlapalli Sandeep May 2022

Aerodynamics Of Cricket Ball, Shiva Shanker, Ramagiri Sai Vamshidher, Potlapalli Sandeep

Graduate Research in Engineering and Technology (GRET)

This paper describes experiments performed on stationary cricket ball to determine the aerodynamic forces acting on the ball over a range of bowling speeds. Co-efficient of drag was measured directly and it was found for the stationary ball. At air velocities above 112kmph, the drag coefficient increased with increasing air speed being weakly influenced by the vertical seam angle. Roughening one side of the ball increased the side force but delayed until a marginally higher velocity was reached. When bowler was applied to the smooth ball, the side force increased almost linearly but there was no resultant lift force. The ...


Effect Of Variable Cant Angle On Sweepback Wing, Laxmi Swargam, Kidron M, Madhavi Latha Nandigam, Y D Dwivedi May 2022

Effect Of Variable Cant Angle On Sweepback Wing, Laxmi Swargam, Kidron M, Madhavi Latha Nandigam, Y D Dwivedi

Graduate Research in Engineering and Technology (GRET)

Winglets are commonly used drag-reduction and fuel-saving technologies in today’s aviation. The primary purpose of the winglets is to reduce the lift-induced drag, therefore improving fuel efficiency and aircraft performance. Traditional winglets are designed as fixed devices attached at the tips of the wings. However, because they are fixed surfaces, they give their best lift-induced drag reduction at a single design point. In this work, we propose the use of variable cant angle winglets which could potentially allow aircraft to get the best all-around performance (in terms of lift-induced drag reduction), at different angle-of-attack values.

This paper describes a ...


A Review On Base Drag Reduction Methods, Kishore Kumar S Mr., Srinivas Pendyala Dr., Y D Dwivedi Mr May 2022

A Review On Base Drag Reduction Methods, Kishore Kumar S Mr., Srinivas Pendyala Dr., Y D Dwivedi Mr

Graduate Research in Engineering and Technology (GRET)

In this project-based learning we are going to know about how the base drag are acting on an object to automobile and aircrafts and it deals with the equations of the drag in fluid dynamics and aerodynamics, and we come to know that what steps are we going to follow how to overcome the drag in vehicles. Reducing base drag of two dimensional and axisymmetric bodies having a blunt base. These methods include splitter plates, both thin and thick, splitter wedges, base bleed. boat-tailing and various types of serrated trailing edges. These methods include splitter plates, both thin and thick ...


Direct Simulation And Reduced-Order Modeling Of Premixed Flame Response To Acoustic Modulation, Zheng Qiao May 2022

Direct Simulation And Reduced-Order Modeling Of Premixed Flame Response To Acoustic Modulation, Zheng Qiao

Theses and Dissertations

This dissertation introduces a general, predictive and cost-efficient reduced-order modeling (ROM) technique for characterization of flame response under acoustic modulation. The model is built upon the kinematic flame model–G-equation to describe the flame topology and dynamics, and the novelties of the ROM lie in i) a procedure to create the compatible base flow that can reproduce the correct flame geometry and ii) the use of a physically-consistent acoustic modulation field for the characterization of flame response. This ROM addresses the significant limitations of the classical kinematic model, which is only applicable to simple flame configurations and relies on ad-hoc ...


Structural Sizing Of Post-Buckled Thermally Stressed Stiffened Panels, Walid Arsalane May 2022

Structural Sizing Of Post-Buckled Thermally Stressed Stiffened Panels, Walid Arsalane

Theses and Dissertations

Design of thermoelastic structures can be highly counterintuitive due to design-dependent loading and impact of geometric nonlinearity on the structural response. Thermal loading generates in-plane stresses in a restrained panel, but the presence of geometric nonlinearity creates an extension-bending coupling that results in considerable transverse displacement and variation in stiffness characteristics, and these affects are enhanced in post-bucking regimes. Herein a methodology for structural sizing of thermally stressed post-buckled stiffened panels is proposed and applied for optimization of the blade and hat stiffeners using a gradient-based optimizer. The stiffened panels are subjected to uniform thermal loading and optimized for minimum ...


Drone Delivery Of Cbnrecy – Dew Weapons Emerging Threats Of Mini-Weapons Of Mass Destruction And Disruption (Wmdd), Randall K. Nichols, Suzanne Sincavage, Hans Mumm, Wayne Lonstein, Candice Carter, John Paul Hood, Randall Mai, Mark Jackson, Mike Monnik, Robert Mccreight, William Slofer, Troy Harding May 2022

Drone Delivery Of Cbnrecy – Dew Weapons Emerging Threats Of Mini-Weapons Of Mass Destruction And Disruption (Wmdd), Randall K. Nichols, Suzanne Sincavage, Hans Mumm, Wayne Lonstein, Candice Carter, John Paul Hood, Randall Mai, Mark Jackson, Mike Monnik, Robert Mccreight, William Slofer, Troy Harding

NPP eBooks

Drone Delivery of CBNRECy – DEW Weapons: Emerging Threats of Mini-Weapons of Mass Destruction and Disruption (WMDD) is our sixth textbook in a series covering the world of UASs and UUVs. Our textbook takes on a whole new purview for UAS / CUAS/ UUV (drones) – how they can be used to deploy Weapons of Mass Destruction and Deception against CBRNE and civilian targets of opportunity. We are concerned with the future use of these inexpensive devices and their availability to maleficent actors. Our work suggests that UASs in air and underwater UUVs will be the future of military and civilian terrorist operations ...


Orbital Debris Analysis And Orbital Decay Analysis Of Arksat-2, Will Stuff May 2022

Orbital Debris Analysis And Orbital Decay Analysis Of Arksat-2, Will Stuff

Mechanical Engineering Undergraduate Honors Theses

ARKSAT-2 is a cube satellite developed by the University of Arkansas for its second CubeSat mission. There are two objectives of the ARKSAT-2 mission. The first objective of this mission is to test a novel cold gas thruster propulsion system using water-propylene propellant. This propulsion system will be used for attitude control of the satellite. The second objective for the ARKSAT-2 mission is to test a Solid-State Inflation Balloon (SSIB) that has been designed and developed for this mission. The SSIB is designed to be a simple and cost-effective method for deorbiting the vehicle. In cube satellites, a software known ...


A Study Of Wings With Constant And Variable Sweep For Aerodynamic Efficiency In Inviscid Flow, Bruno Moorthamers May 2022

A Study Of Wings With Constant And Variable Sweep For Aerodynamic Efficiency In Inviscid Flow, Bruno Moorthamers

All Graduate Theses and Dissertations

Wing sweep has been studied by industry and academia since the pioneering days of aviation for both high-speed and low-speed applications. In transonic and supersonic flight regimes it serves to delay the onset of compressibility effects and decrease wave drag. In subsonic conditions, flying wing designs sweep back the main lifting surface in such a way that it can be used for longitudinal stability and control, to allow for the elimination of a traditional empenage. This is desirable because it can decrease the aerodynamic drag. Sweep can also be seen in nature in the wings of birds and fins of ...


Optimal Relative Path Planning For Constrained Stochastic Space Systems, Nathan Bohus Stastny May 2022

Optimal Relative Path Planning For Constrained Stochastic Space Systems, Nathan Bohus Stastny

All Graduate Theses and Dissertations

Rendezvous and proximity operations for automated spacecraft systems requires advanced path planning techniques that are capable of generating optimal paths. Real-world constraints, such as sensor noise and actuator errors, complicate the planning process. Operations also require flight safety considerations in order to prevent the spacecraft from potentially colliding with the associated companion spacecraft. This work proposes a new, ground-based trajectory planning approach that seeks an optimal trajectory while meeting all mission constraints and accounting for vehicle performance and safety requirements. This approach uses a closed-loop linear covariance simulation of the relative trajectory coupled with a genetic algorithm to determine fuel ...


A Primer For Designing A Small Spacecraft Mission Operations Architecture, Joseph M. A. Feliciano Apr 2022

A Primer For Designing A Small Spacecraft Mission Operations Architecture, Joseph M. A. Feliciano

Morehead State Theses and Dissertations

A thesis presented to the faculty of the College of Science at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science by Joseph M. A. Feliciano on April 28, 2022.


Characterizing And Predicting Human Visual Perception Of Unmanned Aerial Vehicle Gestures, Paul Fletcher Apr 2022

Characterizing And Predicting Human Visual Perception Of Unmanned Aerial Vehicle Gestures, Paul Fletcher

Computer Science and Engineering: Theses, Dissertations, and Student Research

Unmanned Aerial Vehicles (UAVs) are being used in public domains and hazardous environments where effective communication strategies are critical. UAV gesture techniques have been shown to communicate meaning to human observers and may be ideal in contexts that require lightweight systems such as unmanned aerial flight, however, this work may be limited to an idealized range of viewer perspectives. As gesture is a visual communication technique it is necessary to consider how the perception of a robot gesture may suffer from obfuscation or self-occlusion from some viewpoints. This thesis presents the results of three online user-studies that examine participants’ ability ...


Computational Analysis Of The Effects Of Scarfed Nozzle Variations On Jet Plumes, Andrew J. La Sorsa Apr 2022

Computational Analysis Of The Effects Of Scarfed Nozzle Variations On Jet Plumes, Andrew J. La Sorsa

ONU Student Research Colloquium

A computational fluid dynamics analysis investigating the variation of effects on nozzles with non-orthogonal exit planes, known as scarfing, was performed. The steady Reynolds-averaged Navier-Stokes model, coupled with the Spalart-Allmaras turbulence model, was used to simulate and compare plume development and characteristics using various scarfing geometries at variable inlet conditions. The jet plume cross-section is significantly affected for overexpanded conditions, while retaining the nozzle exit shape for underexpanded conditions, although slight peaks (bifurcation) do occur at the centerline. The same observations occur when slightly changing the angle of scarf. However, inverting the overall geometry of the diverging portion of the ...


Effects Of Vortex Generator Placement On A Horizontal Axis Wind Turbine Blade, Dagan Sorensen Apr 2022

Effects Of Vortex Generator Placement On A Horizontal Axis Wind Turbine Blade, Dagan Sorensen

ONU Student Research Colloquium

Vortex generators are commonly used devices to control the flow over an airfoil or other surface. In this paper the effect of differing placements of vortex generators on a wind turbine airfoil, compared to an airfoil without vortex generators, were simulated using computational fluid dynamics(CFD). It was shown that, in some instances, the application of vortex generators effectively controlled the flow over the airfoil to increase the power produced by the wind turbine. According to the CFD results, the application of vortex generators at an angle increased the lift produced, as well as delaying the separation of the boundary ...


A Review Of Avian-Inspired Morphing For Uav Flight Control, Christina Harvey, Lawren L. Gamble, Christian R. Bolander, Douglas F. Hunsaker, James J. Joo, Daniel J. Inman Apr 2022

A Review Of Avian-Inspired Morphing For Uav Flight Control, Christina Harvey, Lawren L. Gamble, Christian R. Bolander, Douglas F. Hunsaker, James J. Joo, Daniel J. Inman

Mechanical and Aerospace Engineering Faculty Publications

The impressive maneuverability demonstrated by birds has so far eluded comparably sized uncrewed aerial vehicles (UAVs). Modern studies have shown that birds’ ability to change the shape of their wings and tail in flight, known as morphing, allows birds to actively control their longitudinal and lateral flight characteristics. These advances in our understanding of avian flight paired with advances in UAV manufacturing capabilities and applications has, in part, led to a growing field of researchers studying and developing avian-inspired morphing aircraft. Because avian-inspired morphing bridges at least two distinct fields (biology and engineering), it becomes challenging to compare and contrast ...


Effect Of Anhedral And Dihedral On The Lateral Directional Static Stability Of The Aircraft, Girish Kumar Chowdary Kanneganti, Bhaskar Charan, Vesapogu Chandrakala, V. Varun Dr. Apr 2022

Effect Of Anhedral And Dihedral On The Lateral Directional Static Stability Of The Aircraft, Girish Kumar Chowdary Kanneganti, Bhaskar Charan, Vesapogu Chandrakala, V. Varun Dr.

Graduate Research in Engineering and Technology (GRET)

Developments and advancements in Aircraft industry have led to an increasing the stability and maneuverability of an aircraft. When the aircraft subjected to unbalanced force it needs the suitable wing to overcome the side slip and maneuverability of an aircraft. This work proposed a Dihedral and Anhedral wing simulation in XFLR5 software to increase the stability and maneuverability of an aircraft. XFLR5 analysis was then carried out for Dihedral and anhedral angles of 5deg, 10deg ,with side slip angles 2deg and 5deg. The aerofoil used in wing is NACA 4412 and in tail is 0009..Lateral-Directional Static Stability of 5 ...


Novel 360-Degree Camera, Ian Gauger, Andrew Kurtz, Zakariya Niazi Apr 2022

Novel 360-Degree Camera, Ian Gauger, Andrew Kurtz, Zakariya Niazi

Frameless

Circle Optics is developing novel technology for low-parallax, real time, panoramic image capture using an integrated array of multiple adjacent polygonal-edged cameras. This technology can be optimized and deployed for a variety of markets, including cinematic VR. Circle Optics’ existing prototype, Hydra Alpha, will be demonstrated.


Effect Of T-Tail On The Aerodynamic Characteristics And Static Stability Of An Aircraft – A Computational Analysis, Athar Mahmood Ansari Mr, Amarnath M Mr, Ambati Joseph Leonard Mr Apr 2022

Effect Of T-Tail On The Aerodynamic Characteristics And Static Stability Of An Aircraft – A Computational Analysis, Athar Mahmood Ansari Mr, Amarnath M Mr, Ambati Joseph Leonard Mr

Graduate Research in Engineering and Technology (GRET)

It is the purpose of this paper to find out the effect of T-tail on Aerodynamic characteristics and static stability of an aircraft. A T-tail aircraft with a configuration of tail with the horizontal stabilizer placed above the vertical stabilizer. Typically, a tail configuration in T shape. T- tail configuration is proposed with a goal of enhancing stability and controllability during high angle of attack and low speeds. Data is presented from a series of XFLR5 analysis to qualify the aerodynamic effect of T-tail over a range of angle of attack from -150 to +150. Various graphs were ...


Novel Thermal Coating For High-Speed Airplanes, Abinash Satapathy, Lakshay Battu, Liam Watson, Nazanin Rajabi Apr 2022

Novel Thermal Coating For High-Speed Airplanes, Abinash Satapathy, Lakshay Battu, Liam Watson, Nazanin Rajabi

Symposium of Student Scholars

In comparison to various other materials, Carbon Fiber, specifically Carbon Fiber Reinforced Polymers (CFRP), is pre-eminent amongst other materials for use on aeronautical systems. Due to its high specific strength (strength-to-weight ratio), CFRP is prominent for carrying heavy loads while maintaining a lightweight build. However, when influenced by heat resulting from air resistance, CFRP is known to undergo serious degradation that would significantly decrease the effectiveness of the polymers. To prevent this degradation and maintain the strength of the CFRP, thermal protective layers (TPLs) are designed to shield the CFRP from heat exposure. This research is focused on the examination ...


Vertically Air Lifted High Altitude Light Launch Apparatus (Valhalla), Benjamin E. Chaback, Ethan L. Deweese, Avery Evans, Alyssa Hodum Apr 2022

Vertically Air Lifted High Altitude Light Launch Apparatus (Valhalla), Benjamin E. Chaback, Ethan L. Deweese, Avery Evans, Alyssa Hodum

Beyond: Undergraduate Research Journal

Project VALHALLA aims to get collegiate level rockets to reach higher altitudes by providing a launch platform that shall allow them to be launched from 100,000 ft. This shall allow researchers to pass ninety percent of Earth's dense atmosphere when launching their rockets and shall allow for research at altitude. VALHALLA’s design consists of using multiple high-altitude balloons arranged around a launch platform to reach the target altitude with the rocket. The project shall consist of the following subsystems: policy, structure and design, helium recovery system, and electronics. The policy team shall be responsible for ensuring that ...


Effect Of Dihedral And Anhedral On Lateral-Directional Stability Of Rectangular Swept Back Wing, Bhavya Poojari Apr 2022

Effect Of Dihedral And Anhedral On Lateral-Directional Stability Of Rectangular Swept Back Wing, Bhavya Poojari

Graduate Research in Engineering and Technology (GRET)

Abstract:

This paper investigates the probable effect a dihedral and an anhedral have on the Lateral-directional stability of an aircraft. In this paper we discuss the basic design of a rectangular swept back wing, designed in the XFLR5 software. We will apply different angles for both the dihedral and anhedral and analyse it using the XFLR5 Software. Our main goal would be to understand the stability criterion, mainly lateral-directional, of the airplane, analysing the graphs that help us understand lateral-directional static stability, compiling all the results and concluding our findings. Furthermore, we will be well-versed in the domain of static ...


Aerodynamic Analysis Of Delta Wing At Low Reynolds Number Using Computational Simulations, C Manoj Kumar Reddy, Divyasunder Manne, Nisha Tirumallasetti Apr 2022

Aerodynamic Analysis Of Delta Wing At Low Reynolds Number Using Computational Simulations, C Manoj Kumar Reddy, Divyasunder Manne, Nisha Tirumallasetti

Graduate Research in Engineering and Technology (GRET)

The delta wing is best known for their contribution to stability and also, they have high structural advantages compared to other wings. Till now the delta wing has been used mostly in high speed or high Reynolds number flows. But no one concentrated on the low Reynolds number flows, here we have analyzed the flow at Re = 100000. Since we have taken the case of this Reynolds number range, the results obtained can be utilized in designing the Micro Air Vehicles (MAVs) which are mostly designed for the range of Reynolds number Re = 10000 to 100000. We have obtained Cl ...


Xfoil Analysis On Low Reynolds Number Airfoil, Pabbu Pavithra, Emmadi Parimala Apr 2022

Xfoil Analysis On Low Reynolds Number Airfoil, Pabbu Pavithra, Emmadi Parimala

Graduate Research in Engineering and Technology (GRET)

The range of low Reynolds number airfoil is between 104 to 105.In this study the investigated airfoil is NACA2414.The aerodynamic performance of low Reynolds airfoil is less than 105 is important for various applications such as unmanned air vehicles, Micro air vehicles and low-speed/high altitude aircrafts. In general, the lift and drag characteristics of most of the airfoils cannot be assumed constant having Reynolds number less than 106. XFLR5 is an analysis tool for airfoils, wings and planes operating at low Reynolds numbers. It includes XFOIL’S direct and inverse analysis capabilities. Wing ...


Flow Analysis On Delta Wing – A Review, Y D Dwivedi, C Navaneetha, Vasishta Bhargava Apr 2022

Flow Analysis On Delta Wing – A Review, Y D Dwivedi, C Navaneetha, Vasishta Bhargava

Graduate Research in Engineering and Technology (GRET)

Many aircraft, like fighters and bombers, are delta-winged aircraft. These aircraft have the characteristics of producing a greater lift at very small angles of attack even at very low Reynold’s number. Highly swept-wing aircraft experience greater lift due to the generation of the leading-edge vortex at a high angle of attack flight. The phenomena of vortex breakdown are noticed which leads to the reduction of the vortex lift and leads to the instability of the aircraft. This paper deals with an analysis of the flow on the delta wing with the existing literature and compares its benefits over the ...


Editorial, Maruthupandiyan K Dr. Apr 2022

Editorial, Maruthupandiyan K Dr.

Graduate Research in Engineering and Technology (GRET)

The aeronautical engineer is responsible for using cost-effective methods to develop ways of improving fuel efficiency and flight safety. Additionally, aeronautical engineers focus on lowering the environmental impact of air travel by creating aircraft that are more environmentally friendly. In Indian scenario, the development of aeronautical related advance technologies is still to grow with the Government of India initiative for the defence product under the Atmanirbhar Bharat and hope in few years now, these advanced technologies will be booming.


Two-Photon Nanomachining Of A Micromechanically Enhanced Optical Cavity Sensor On An Optical Fiber Tip, Jeremiah C. Williams, Hengky Chandrahalim, Joseph S. Suelzer, Nicholas G. Usechak Apr 2022

Two-Photon Nanomachining Of A Micromechanically Enhanced Optical Cavity Sensor On An Optical Fiber Tip, Jeremiah C. Williams, Hengky Chandrahalim, Joseph S. Suelzer, Nicholas G. Usechak

Faculty Publications

Herein, a two-photon nanostructuring process that is employed to monolithically integrate dynamic three-dimensional (3D) micromechanical features into Fabry–Pérot cavity (FPC) sensors on an optical fiber tip is demonstrated. These features represent a breakthrough in the integration and fabrication capabilities of micro optomechanical devices and systems. The demonstrated dynamic optical surface enables directional thin-film deposition onto obscured areas. The rotation of the dynamically movable mirror to deposit a thin reflective coating onto the inner surfaces of a FPC with curved geometry is leveraged. The reflective coating in conjunction with the dynamically rotatable mirror greatly improves the quality factor of the ...


The Effect Of Store-To-Store Energy Transfers On The Global Dynamics Of Aircraft, Guilherme Mainieri Eymael, Keegan J. Moore Apr 2022

The Effect Of Store-To-Store Energy Transfers On The Global Dynamics Of Aircraft, Guilherme Mainieri Eymael, Keegan J. Moore

UNL Student Research Days Posters, Undergraduate

This study analyzes the energy transfer mechanisms when nonlinear devices (stores) are attached to a linear model airplane. For that, a reduced-order model (ROM) was derived to simulate the first two flexible modes of vibration of the primary structure (aircraft) with one store in each wing. Each store can either be locked or unlocked. When locked, it only contributes as mass-effect, and when unlocked, it adds nonlinearity to the system. Simulations were then performed with either both stores locked, one store unlocked, or both stores unlocked. It was found that the attachment of nonlinear stores in the ROM changes the ...


Understanding The Nonlinear Dynamics Governing Vertical-Lift Vehicles With Variable-Speed, Fixed Rotors, Stephanie Vavra, Micah Busboom, Aleea Stanford, Keegan Moore Apr 2022

Understanding The Nonlinear Dynamics Governing Vertical-Lift Vehicles With Variable-Speed, Fixed Rotors, Stephanie Vavra, Micah Busboom, Aleea Stanford, Keegan Moore

UNL Student Research Days Posters, Undergraduate

Problem: Traffic significantly limits travel in urban areas. • The NASA Urban Air Mobility Project is developing an air taxi as an alternative mean of transportation (Fig. 1).

Challenge: Operating rotors at different frequencies may cause the cabin to vibrate at high amplitudes. Such effects are currently unknown.

Objective: Understand the effect of variable speed rotors on passenger comfort.

From the reduced-order modeling simulations, it can be assumed that counteracting the rotor speed in-balances can reduce the displacement and vibrations experienced at the center of the wing. In other words, should a rotor not maintain its optimal operation speed, reducing the ...