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Article
Open AccessOn the effects of rotor induced vibrational stability on helicopter flight dynamics
This article investigates vibrational stabilization effects in rotorcraft flight dynamics. This study is motivated by recent results in flap**-wing flight, which showed that the time-varying aerodynamic and ...
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Article
Open AccessEffect of risk status for severe COVID-19 on individual contact behaviour during the SARS-CoV-2 pandemic in 2020/2021—an analysis based on the German COVIMOD study
One of the primary aims of contact restriction measures during the SARS-CoV-2 pandemic has been to protect people at increased risk of severe disease from the virus. Knowledge about the uptake of contact restr...
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Article
Open AccessIndividual social contact data and population mobility data as early markers of SARS-CoV-2 transmission dynamics during the first wave in Germany—an analysis based on the COVIMOD study
The effect of contact reduction measures on infectious disease transmission can only be assessed indirectly and with considerable delay. However, individual social contact data and population mobility data can...
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Article
Modeling and control of lift offset coaxial and tiltrotor rotorcraft
The US Department of Defense has established an initiative to develop a family of next-generation vertical lift aircraft that will fly farther, faster, and more efficiently than the current fleet of rotorcraft...
