Electrically Driven And Controlled Landing Gear For UAV Up To 100kg Of Take Off Mass

Skorupka, Zbigniew; Kowalski, Wojciech; Kajka, R.

doi:10.7148/2009-0117-0121

Cited by 2 publications

(2 citation statements)

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“…All UAVs are equipped with the same features as normal aircrafts. The steering system, landing gear and shape of the vessel itself are similar to normal aircraft (Skorupka et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…One way is through the use of Oleo-pneumatic shock absorbers, which are usually used by large commercial aircraft because they have a large capability to absorb the energy by pushing a volume of hydraulic fluid against volume of gas (Zdravko and Hinko, 2004). For lighter airplanes, the most common way for reducing the impact energy is by using beam springs or steel disc springs landing gear with flexible elements (Skorupka et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

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A new concept for UAV landing gear shock vibration control using pre-straining spring momentum exchange impact damper

Son

Bur

Rusli

2016

Journal of Vibration and Control

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This study proposes a new method for reducing the shock vibration response of an Unmanned Aerial Vehicle (UAV) during the landing process by means of the momentum exchange principle (MEID). The performance of the impact damper is improved by adding a pre-straining spring to the damper system. This research discusses the theoretical application of the damper to the UAV landing gear system. The UAV dynamics is first modeled as a simple lumped mass translational vibration system. Then we analyze a more complex two-dimensional model of UAV dynamics. This model consists of the main wheel, nose wheel and main body. Three cases of UAV landing gear mechanisms: without damper, with passive MEID (PMEID) and with pre-straining spring MEID (PSMEID) are simulated. The damper performance is evaluated from the maximum acceleration and force transmission to the main body. The energy balance calculation is conducted to investigate the performance of PSMEID. The simulation results show that the proposed PSMEID method is the most effective method for reducing the maximum acceleration and force transmission of UAV during impact landing.

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“…All UAVs are equipped with the same features as normal aircrafts. The steering system, landing gear and shape of the vessel itself are similar to normal aircraft (Skorupka et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%