Wind gust alerting for supervisory control of a Micro Aerial Vehicle

Habib, Manal Adnan; Quimby, Paul W.; Chang, Stephen; Jackson, Kimberly F.; Cummings, Mary L.

doi:10.1109/aero.2011.5747536

Cited by 7 publications

(5 citation statements)

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“…MAVs are one of the largest groups that are vulnerable to gust loads due to their weakness in resisting gust loads (61,62,73,(158)(159)(160)(161)(162) . The flying speed of a MAV is around 10 to 20 m/s, which is at the same scale of the velocity of a normal gust.…”

Section: Aerodynamicsmentioning

confidence: 99%

Gust loads on aircraft

Cao

Ismail

2019

Aeronaut. j.

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An important prerequisite for the design, assessment and certification of aircraft and their associated control systems is a quantitative specification of the environment in which the aircraft is intended to operate, for example, atmospheric gust. Gust loads on aircraft may induce detrimental influences such as increased aerodynamic and structural loads, structural deformation and decreased flight dynamic performance. This paper presents a systematic and comprehensive overview of important concepts and applications of gust loads on aircraft. This overview includes a brief research background, concepts, research techniques, influences and load alleviation measures of gust. Finally, we summarise some potential improvements in the future work. It is also recommended to learn from previous experiences to avoid aviation accidents due to flight through atmospheric gusts and turbulence.

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Section: Aerodynamicsmentioning

confidence: 99%

Gust loads on aircraft

Cao

Ismail

2019

Aeronaut. j.

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“…Wind speeds varied between 5 and 11 knots. Previous research has demonstrated that the Hummingbird can hold its position fairly well in a stable wind, but any gusts can cause deviations in position that take time to correct [17].…”

Section: Windmentioning

confidence: 99%

Development and Testing of a Quad Rotor Smartphone Control System for Novice Users

Cummings¹,

Jackson²,

Quimby³

et al. 2012

International Journal of Micro Air Vehicles

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With recent regulatory efforts to reduce restrictions placed on the operation of Micro Air Vehicles (MAVs) in the United States, it is likely that in the next few years, these vehicles will become commonplace in the commercial marketplace as they are in military environments. In order to reduce the barrier to entry for operations of MAVs, customers of these systems will require ease of operation as well as minimal training time in order to reduce costs. To this end, a smartphone application was developed to control a quadrotor remotely in the exploration of an unknown environment, and tested for users with only three minutes of training. Initial motion capture room tests produced encouraging results for localization and target identification tasks, however, such environments are inherently artificial and the extensibility of such results is limited. A follow-on outdoor field study was conducted in order to compare the indoor and outdoor results and to assess operator performance in a realistic environment. Performance on the outdoor localization tasks was comparable to the indoor study, however, participants generally performed slightly worse on the target identification task in the outdoor experiment, attributed to camera image quality and GPS localization issues. Other issues such as wind and flight safety considerations are discussed. INTRODUCTIONSoldiers, Special Weapons And Tactics (SWAT) teams, and natural disaster first responders are examples of teams of people operating in dangerous and potentially hostile environments who quickly need information about their local environment. These personnel often quickly need aerial imagery of their environments to answer relatively simple questions such as "Is my path blocked?" or "Is there a threat on top of that building?"The use of Unmanned Aerial Vehicles (UAVs) to support such personnel has become commonplace in the military and with recent regulatory rulings [1], will likely be increasing in the next few years in civilian sectors. Micro Aerial Vehicles (MAVs) that weigh only a few pounds have also been introduced in these settings. However, both traditional small UAV and MAV systems require a dedicated operator with extensive training and control stations that require either a bulky laptop or a two handed controller that resembles popular gaming controllers.Personnel in these situations have a primary mission other than operating the vehicle, i.e., soldiers are looking for insurgents, first responders are searching for victims, etc. Requiring such operators to have a specialized skill set for operating a MAV or UAV, or requiring additional dedicated personnel to just operate the vehicles places additional demands on resources and could unnecessarily put more people at risk. Moreover, in order for such systems to become viable in the commercial marketplace, the control devices will need to be easy to use with minimal training and low operational costs.One solution to these problems is to make the control of such systems sufficiently intuitive so that al...

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“…Typically, models based on fluid dynamics have been developed because of their simplicity and high precision. Among these, the doublet sheet model [8], vortex-ring model, and vortex section superposition model [9,10] are usually adopted to construct real-time wind fields. In fact, the first two are identical in nature and have the same results, although the doublet of the first model is perpendicular to the vortex pair in the vortex-ring model.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Simulation of China C Series Large Aircraft with Microburst

Wang

Song²,

Wang³

2016

Mathematical Problems in Engineering

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To simulate and analyze a large aircraft with severe wind shear, nonlinear equations for a rigid aircraft under various wind conditions were designed. In this paper, a double-vortex-ring method is adopted to generate a three-dimensional microburst wind field. This model incorporates a flight dynamics module and three flight simulations based on various forms of nonlinear equations. In addition, four primary wind gradients are considered to compute the aerodynamic coefficients. In simulation experiments with a China C series large aircraft, equations using air-relative velocities and inertial velocities are compared and analyzed. Although the nonlinear equations derived using the air-relative velocities should be identical to those using the inertial velocities, the results show that the latter are more accurate in practice because the former bring error into the simulation when estimating the acceleration induced by the wind field.

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Wind gust alerting for supervisory control of a Micro Aerial Vehicle

Cited by 7 publications

References 0 publications

Gust loads on aircraft

Gust loads on aircraft

Development and Testing of a Quad Rotor Smartphone Control System for Novice Users

Modeling and Simulation of China C Series Large Aircraft with Microburst

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