Searched for: subject%3A%22control%255C+systems%22
(1 - 20 of 197)

Pages

document
Jansen, Hidde (author)
Reinforcement Learning applied to flight control has shown to have several benefits over classical, linear flight controllers, as it eliminates the need for gain scheduling and it could provide fault-tolerance. The application to civil aviation in practice, however, is non-existent as there are multiple safety concerns. This research...
master thesis 2024
document
Giuffré, A. (author)
In 2022 the aviation sector accounted for 1.9%of global greenhouse gas emissions, 2.5% of global CO2 emissions, and 3.5% of effective radiative forcing. To reach the long-term target of net zero emissions, revolutionary aircraft designs, featuring electrified or hydrogen powered propulsion systems, are needed. At the same time, the...
doctoral thesis 2024
document
Ascione, F. (author), Colonna, Piero (author), de Servi, C.M. (author)
The aircraft Environmental Control System (ECS) is the primary consumer of non-propulsive power at cruise conditions, hence, its performance optimization is crucial for the reduction of specific fuel consumption. A novel integrated system design optimization method is presented: thermodynamic cycle, component sizing and working fluid are...
journal article 2024
document
Shokri, M. (author), Gogliettino, Alex R. (author), Hottowy, Paweł (author), Sher, Alexander (author), Litke, Alan M. (author), Chichilnisky, E. J. (author), Pequito, Sérgio (author), Muratore, D.G. (author)
Objective. Bi-directional electronic neural interfaces, capable of both electrical recording and stimulation, communicate with the nervous system to permit precise calibration of electrical inputs by capturing the evoked neural responses. However, one significant challenge is that stimulation artifacts often mask the actual neural signals. To...
journal article 2024
document
Shahbazzadeh, Majid (author), Sadati, S. Jalil (author), Hassan HosseinNia, S. (author)
In this article, the problem of the optimal reset control design for Lipschitz nonlinear systems is addressed. The reset controller includes a base linear controller and a reset law that enforces resets to the controller states. The reset law design is strongly dependent on the appropriate design of the base controller. For this reason, in...
journal article 2024
document
Giuffré, A. (author), Colonna, Piero (author), de Servi, C.M. (author)
The Environmental Control System (ECS) of passenger aircraft is the main consumer of non-propulsive power aboard. A computationally efficient and accurate thermal model of the fuselage is needed for future sustainable aircraft to address ECS preliminary sizing and control design, as the ECS should be re-designed to exploit possible synergies...
journal article 2024
document
de Haan, Pim (author), Mulder, Jean Paul S.H. (author), Lötters, J.C. (author), Verpoorte, Elisabeth (author)
Stable delivery of liquids to microfluidic systems is essential for their reproducible functioning, especially when supplying flows to organs-on-chips – delicate living models that recreate human physiology on the microscale and thus can be used to reduce the need for animal testing. Most flow control systems are unable to sustain a robust...
journal article 2024
document
Grootes, Casper (author)
With an increase in higher power (ultra) fast EV charging stations and a new EU law for mandatory deployments of EV charging stations, an optimal MVAC grid connection for these charging stations is desired. Considering this connection, the use of a solid-state transformer (SST) performs better in terms of weight, size and efficiency with a...
master thesis 2023
document
Scheeper, Tom (author)
Wind turbine installation vessels (WTIVs) are ships that are specifically designed to install offshore wind turbines. These WTIVs have four or six large truss-like legs that are lowered towards the seabed by means of jacking systems. These jacking systems are regulated by control systems to ensure the leg is lowered with a constant velocity...
master thesis 2023
document
Papadogianni, Maria (author)
This report presents the process of designing a volume unit as an addition to the current product system, which will allow the user to control boiling, chilled and carbonated water volumes. This assignment tackles both the user interaction that takes place around the tap over the counter, as well as the functionality and technology implemented...
master thesis 2023
document
Vieira dos Santos, Lucas (author)
The critical challenge for employing autonomous control systems in aircraft is ensuring robustness and safety. This study introduces an intelligent and fault-tolerant controller that merges two Reinforcement Learning (RL) algorithms in a hybrid approach: the Distributional Soft Actor-Critic (DSAC) and the Incremental Dual Heuristic Programming ...
master thesis 2023
document
Mladenov, Martin (author)
Supervisory Control and Data Acquisition (SCADA) systems are sometimes exposed on the public Internet. It is possible to quickly and efficiently identify such exposed services. They are commonly part of critical infrastructure, so they need to be protected against cyber attacks. In the past, researchers have scanned the Internet to detect such...
bachelor thesis 2023
document
ZHANG, JIAXUAN (author)
Cyber-physical systems are vulnerable to malicious attacks, which can lead to severe consequences. Active detection methods have emerged as a promising approach for identifying such attacks. However, existing active detection methods are susceptible to malicious parameter identification attacks, where attackers exploit eavesdropped data to...
master thesis 2023
document
Dong, Shawn (author)
This paper presents a train robust control method to optimize train operation based on the concept virtual coupling on train platoon. This approach is inspired by the recent development of platoon control for autonomous vehicles, and it is hoped that this platoon control can be applied to railway transportation. We use a decentralized model...
student report 2023
document
D'Aguanno, A. (author)
The flight envelope of an aircraft operating at high subsonic velocities is bounded by several limitations, one of these consists in thewing experiencing oscillations of a shockwave on its suction side for a certain range ofMach number (Ma), angle of attack (®) and Reynolds number (Re). This phenomenon is referred to as transonic buffet and it...
doctoral thesis 2023
document
Delimpaltadakis, Giannis (author), Mazo, M. (author)
Scheduling communication traffic in networks of event-triggered control (ETC) systems is challenging, as their sampling times are unknown, hindering application of ETC in networks. In previous work, finite-state abstractions were created, capturing the sampling behavior of linear time-invariant (LTI) ETC systems with quadratic triggering...
journal article 2023
document
de Rooij, G. (author), van Baelen, D. (author), Borst, C. (author), van Paassen, M.M. (author), Mulder, Max (author)
Haptic cues on the side stick are a promising method to reduce loss of control in-flight incidents. They can be intuitively interpreted and provide immediate support, leading to a shared control system. However, haptic interfaces are limited in providing information, and the reason for cues may not always be clear to pilots. This study presents...
journal article 2023
document
Reed, Robert (author), Laurenti, L. (author), Lahijanian, Morteza (author)
Deep Kernel Learning (DKL) combines the representational power of neural networks with the uncertainty quantification of Gaussian Processes. Hence, it is potentially a promising tool to learn and control complex dynamical systems. In this letter, we develop a scalable abstraction-based framework that enables the use of DKL for control...
journal article 2023
document
Trumic, Maja (author), Della Santina, C. (author), Jovanovic, Kosta (author), Fagiolini, Adriano (author)
This letter investigates the stability properties of the soft inverted pendulum with affine curvature - a template model for nonlinear control of underactuated soft robots. We look at how changes in physical parameters affect stability and equilibrium. We give conditions under which zero dynamics corresponding to a collocated choice of the...
journal article 2023
document
Ahmadi Dastjerdi, A. (author), Astolfi, Alessandro (author), Saikumar, N. (author), Karbasizadeh, Nima (author), Valerio, Duarte (author), Hassan HosseinNia, S. (author)
This article introduces a closed-loop frequency analysis tool for reset control systems. To begin with sufficient conditions for the existence of the steady-state response for a closed-loop system with a reset element and driven by periodic references are provided. It is then shown that, under specific conditions, such a steady-state response...
journal article 2023
Searched for: subject%3A%22control%255C+systems%22
(1 - 20 of 197)

Pages