Original scientific paper
https://doi.org/10.17559/TV-20170921102227
Static Sensitivity of the Aerial Load Transport by Two Rotocopter Unmanned Aerial Vehicles
Jelena Ćosić Lesičar
orcid.org/0000-0003-4676-0040
; Faculty of Mechanical Engineering and Naval Architecture, Ivana Lučića 5, 10 000 Zagreb, Croatia
Tomislav Radišić
orcid.org/0000-0002-2101-2663
; Faculty of Transport and Traffic Science, Vukelićeva 4, 10 000 Zagreb, Croatia
Tino Bucak
; Faculty of Transport and Traffic Science, Vukelićeva 4, 10 000 Zagreb, Croatia
Josip Stepanić
orcid.org/0000-0003-0674-9883
; Faculty of Mechanical Engineering and Naval Architecture, Ivana Lučića 5, 10 000 Zagreb, Croatia
Abstract
Aerial load transport by Unmanned Aerial Vehicles (UAVs) can be performed either using a single UAV or using a group of cooperative UAVs. The latter option is assumed more reliable, yet more demanding regarding the control and required power, than the former one. This article theoretically evaluates power consumption for aerial load transport by the use of two UAVs and compares it with the power consumption in case of a single UAV. In all treated cases, we assume a stationary level flight. For the stated comparison the theoretical model for aerial load transport by two identical UAVs is formulated. Generic flight characteristics and UAVs characteristics are prescribed, and corresponding solutions of the model evaluated. Independent parameters of the model are masses of the UAVs and the load, as well as flight velocity. Variables in the model are vertical and horizontal distances between the UAVs. The emphasis is put on the available instantaneous power and sensitivity to occasional wind gusts. We extract intervals of the model parameters for which each of the two UAVs is less loaded than a UAV which solitary carries a load. The sensitivity to wind gusts is lesser in configurations in which one UAV carries most of the load while the other provides the additionally needed instantaneous power.
Keywords
aerial load transport; efficiency; power consumption, static sensitivity; unmanned aerial vehicles
Hrčak ID:
205936
URI
Publication date:
22.9.2018.
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