The phenomenon of dynamic soaring, as exhibited by soaring birds, has long been a biological inspiration for aerospace and control engineers. If this fascinating phenomenon, which allows birds to perform almost unpowered flight using wind shear, can be mimicked unmanned aerial vehicles (UAVs), then there is substantial potential technological economic enhancement UAV performance. Although considerable amount research covering the modeling, optimization, simulation aspects different UAVs...

View Video Presentation: https://doi.org/10.2514/6.2022-0881.vid Dynamic soaring as exhibited by birds is an engineless flight mode that utilizes energy available in the horizontal wind shear. Realizing immense potential of dynamic soaring, efforts were made to incorporate into navigation algorithm UAVs. Although a considerable amount research covering optimization, control, and simulation aspects UAVs performing performed, there little nonconclusive work analyzing stability such about...

ABSTRACT This paper presents an open framework, through which, conventional general purpose aerial munitions can be converted into smart munitions. The retrofit consists of a adaptation kit (SAK) having dedicated Guidance and Control Module (GCM). along with the GCM ensures that SAK glide optimally towards designated target. To reduce cost, number control surfaces has been kept to bare minimum, which resulted in under actuated system. methodology proposed utilises theory gain-scheduled leads...

View Video Presentation: https://doi.org/10.2514/6.2022-0882.vid Dynamic soaring as exhibited by birds is an engineless flight mode that utilizes energy available in the horizontal wind shear. Realizing immense potential of dynamic soaring, efforts were made to incorporate into navigation algorithm UAVs. Although a considerable amount research covering optimization, control, and simulation aspects UAVs performing performed, there little nonconclusive work analyzing stability such about...

Bioinspred robots aimed at source-seeking are often studied, and their controls designed, using unicycle modeling formulation. This is true not only for model-based controllers, but also model-free, real-time control methods such as extremum seeking (ESC). In this paper, we propose a unicycle-based ESC design applicable to differential wheeled that: (1) very simple design, based on one control-affine law, without state integrators; (2) attenuates oscillations known persist in designs (i.e.,...

.The mystery of soaring birds, such as albatrosses and eagles, has intrigued biologists, physicists, aeronautical/control engineers, applied mathematicians for centuries. These fascinating avian organisms are able to fly long durations while expending little no energy, utilizing wind gain lift. This flight technique/maneuver is called dynamic (DS). For biologists the DS phenomenon nothing but a wonder very elegant ability these birds interact with nature use its physical ether in an optimal...

Extremum Seeking Control (ESC) systems possess the appealing capability of autonomously driving a dynamical system toward extremum point an objective function, even when mathematical expression function is unknown priori and only its measurements are accessible. Such systems, especially with control affine structures, have recently gained significant attention application to various domains, including but not limited multi-agent unmanned vehicle/aerial systems. The problem however in...

Flying in formation, as observed among migratory birds, has the potential to save significant amounts of energy when flying long distances. However, maintaining precise position control a group fixed-wing aircraft would require an accurate wake model available real-time, which is impractical if not impossible. Extremum Seeking Control (ESC) operates real-time and on model-free basis, offering solution eliminates need for model. In this paper, we reintroduce formation flight problem with...

In this paper, the model of a type-3 DFAG/DFIG wind turbine generator is considered at higher speeds with pitch control activated. The main blocks taken from literature are described and translated into system differential equations algebraic constraints. Eigenvalues steady states presented focus being sensitivity analysis state variables eigenvalues to parameters, how parameters affect states. Results for sensitivities single parameter two provided along simulation dynamics time-varying speed.

In this paper, a type-3 Doubly Fed Asynchronous/InductionGenerator (DFAG/DFIG) wind turbine is considered for higher speeds with the pitch control activated. The purpose of paper to study stability turbine's when connected grid. main blocks model that have been taken from literature are described and translated into system differential equations algebraic constraint. Time domain analysis provided by computing steady states as functions speed grid parameters, testing eigenvalues sensitivity...

The albatross optimized flight maneuver-known as dynamic soaring-is nothing but a wonder of biology, physics, and engineering. By utilizing soaring, this fascinating bird can travel in the desired direction almost for free by harvesting energy from wind. This phenomenon has been observed centuries evidenced writings Leonardo da Vinci Lord Rayleigh. Moreover, soaring biological inspiration triggered momentous interest among many communities science engineering, particularly aeronautical,...

In this paper we validate, including experimentally, the effectiveness of a recent theoretical developments made by our group on control-affine Extremum Seeking Control (ESC) systems. particular, validation is concerned with problem source seeking mobile robot to unknown scalar signal (e.g., light). Our results it possible estimate gradient objective function (i.e., signal) incorporated in ESC and use such information apply an adaptation law which attenuates oscillations system while...

In this paper, a type-3 Doubly Fed Asynchronous/ Induction Generator (DFAG/DFIG) wind turbine is considered for dynamical study. The main blocks of the model taken from literature are described and translated into system differential equations. By proving possibility eliminating algebraic constraint, we provided with good numerical possibilities to study turbine's dynamics. paper provides time domain analysis emphasize analyze effect adding Q Drop function reactive power control Our results,...