A significant number of exploration missions require nuclear propulsion for which power sources are essential and enabling key assets. On the other hand, the development of the associated technologies would require an important financial effort and should therefore take place in the frame of an interna...
Plug-in hybrids are hybrid vehicles with larger batteries and a switch that allows you to change them from gas-electric propulsion to electric only. “Great!” you might think –“best of both worlds! Now I don’t have to worry about the range of the batteries since I can always switch ...
to power the HTS 13-stage axial motor compressor through SUPERFAN hollow core and engine casing, and the previously mentioned 3-stage HTS counter rotating fan and interstage diffuser at the very front of the SuperFan engine which takes in the initial inlet mass flow air for managed propulsion....
Department of Quantitative Methods and Economic Informatics, Faculty of Operation and Economics of Transport and Communications, University of Zilina, 010 26 Zilina, Slovakia 3 Department of Computer Science, College of Computer Science & IT, Jazan University, Jazan 45142, Saudi Arabia ...
The patterns between the forward speed V and the total propulsion power ℙP from Zeng’s model and the proposed model are analogous. However, the proposed model fundamentally enhances the accuracy of energy consumption calculation for a quadrotor UAV in three key aspects: First, while a ...
In this case, in order to explore the parameter space and find the optimal value the system is perturbed with a sinusoidal excitation signal. Adopting the methods proposed in [8], a single parameter ESC design for a non-linear plant is proposed in Figure 2. Figure 2. Single parameter ...
The patterns between the forward speed V and the total propulsion power ℙP from Zeng’s model and the proposed model are analogous. However, the proposed model fundamentally enhances the accuracy of energy consumption calculation for a quadrotor UAV in three key aspects: First, while a ...
Tests were carried out on the basis of the UAV mathematical model, stabilization and navigation algorithms, and Dryden turbulence model, considering the parameters of the UAV’s propulsion system. The work includes a detailed description of constructing a network of connection that is used to plan ...
Wind is a major concern for airships and small UAVs with limited propulsion power [5]. If the strength of the local wind is larger than the maximum vehicle velocity, impassible zones are created which many planners do not account for [6]. Moreover, while many planners consider wind as a...
where g accounts for gravity acceleration, m represents the mass of the aircraft, 𝜂𝑝𝑠 is the rotorcraft propulsion system efficiency, 𝑁𝑅 is the number of rotors, 𝑟𝑝 represents the radius of each rotor and finally 𝜌𝑎 represents the density of air. 𝑁𝑅, 𝑟𝑝 and...