Yunfeng Lin, Fu Lijun, Xiongbo Xiao,
... in Figure 4, and the phase margin is greater than 45°. FIGURE 4Open in figure viewerPowerPoint q-axis current control loop bode diagram The propulsion motor has a large mechanical inertia, and the ... scale of the state variable of speed is greater than the electromagnetic transient, which belongs to electromechanical transient. The change of the electromagnetic power of the propulsion motor increases with the increase of the virtual ...
Tópico(s): Advanced Algorithms and Applications
2021 - Institution of Engineering and Technology | IET Electric Power Applications
... an innovative concept for propelling marine high-speed underwater vehicles, a water-breathing hybrid ram rocket. The water-augmented hybrid ram rocket enables obtaining superior performance relatively to a standard rocket and improved performance relatively to a parallel water–augmented solid ram rocket. In addition, it demonstrates improved safety and controllability due to the hybrid motor characteristics. The theoretical model incorporated data from a thermochemical program. The experimental investigation was based on static firing ...
Tópico(s): Combustion and Detonation Processes
2021 - American Institute of Aeronautics and Astronautics | Journal of Propulsion and Power
Jessy Lauer, João Paulo Vilas‐Boas, Annie Rouard,
... and angular velocity vectors, identifying three main functions-propulsion, stabilization, and resistance. Speeds <30°/s necessitated little ...
Tópico(s): Sports injuries and prevention
2018 - Elsevier BV | Journal of Biomechanics
Anna Maria Raspolli Galletti, Stefano Frigo, Marco Antonelli, Gianluca Pasini, Paolo Bertetti, Federico Tocchi,
... study describes the first results of a research program aimed to identify, from one side, the best saline oxidizing agent for an aqueous NOx abatement and, from the other, the best washing methodology compatible with the propulsion layouts usually adopted on yachts. In the engine testing laboratories of the Department of Energy, Systems, Territory and Construction Engineering (DESTeC) of the University of Pisa, an experimental apparatus has been created to reproduce the real conditions of underwater engine exhausting. This device was combined with a ...
Tópico(s): Industrial Gas Emission Control
2021 - EDP Sciences | E3S Web of Conferences