Searched for: subject%3A%22disturbances%22
(1 - 20 of 110)

Pages

document
Brinkhorst, Douwe (author)
Memory advances have not kept up with computing demands. Emerging device technology Resistive RAM (RRAM) addresses this by enabling computation-in-memory. However, RRAM suffers from read disturb, limiting viability. While earlier work has had some success in reducing read disturb by switching the read current direction (a bipolar read scheme),...
master thesis 2024
document
Neele, Maurits (author)
High-precision mechatronic equipment often benefits from or even needs vibration isolation to function within specification. Examples of such equipment include metrology devices, space instrumentation and lithography assemblies. Vibration isolation is often the function of the mounting between the equipment and the floor or rest of the machine....
master thesis 2024
document
Hart, Robin (author)
This thesis project is part of a larger research project at the LUMC and focuses on overcoming challenges in studying blood vessel mechanics, particularly disturbed flow conditions, using Gelatin Methacryloyl (GelMA). Traditional models fail to replicate the complexity of blood vessels. GelMA stands out for its adjustable mechanical properties,...
master thesis 2024
document
Fidalgo Domingos, D.A. (author), Wellens, P.R. (author), van Wingerden, J.W. (author)
As a result of more stable wind conditions and the depletion of near-shore locations, wind farms are moving farther offshore into deeper waters, challenging the current limits of offshore heavy-lift operations. This paper presents and verifies a novel frequency-domain framework to perform extensive site-specific analysis, of floating...
journal article 2024
document
Vlaardingerbroek, Jochem (author)
This thesis reports the results of research into the stability of the all-to-all coupled discrete time Kuramoto model under constant, matched input disturbances. The discrete time Kuramoto model can be used as a dynamic, decentralized multi-agent orientation coordination system: once initialized, the agents will communicate their orientations to...
master thesis 2023
document
Alizadehsaravi, L. (author), Moore, J.K. (author)
Bicycles are more difficult to control at low speeds due to the vehicle’s unstable low-speed dynamics. This issue might be exacerbated by factors such as aging, disturbances, and multi-tasking. To address this issue, we developed a prototype ‘balance assist system’ with Royal Dutch Gazelle and Bosch eBike Systems at Delft University of...
journal article 2023
document
Wijsman, Jeroen W.M. (author), Prins, Theo C. (author), Moons, J. J.Simeon (author), Herman, P.M.J. (author)
Sand nourishment is a widespread management strategy to protect sandy coasts against erosion. Nourishments can impact the benthic fauna directly by burial and indirectly by changing environmental conditions such as bottom shear stress and/or sediment composition (grain size distribution). The macrobenthic community in soft-bottom environments...
journal article 2023
document
Du, Zhe (author), Negenborn, R.R. (author), Reppa, V. (author)
Transportation of a large offshore platform from inland waters to the open sea is a hazardous and challenging mission. With the development of the autonomous surface vessel (ASV), the problem of large floating object transportation has a chance to be solved by applying multiple physical-connected autonomous tugboats. This article proposes a...
journal article 2023
document
Mooren, Noud (author), Witvoet, Gert (author), Oomen, T.A.E. (author)
Repetitive control (RC) can perfectly attenuate disturbances that are periodic in the time domain. The aim of this article is to develop an RC approach that compensates for disturbances that are time-domain nonperiodic but are repeating in the position domain. The developed position-domain buffer consists of a Gaussian process (GP), which is...
journal article 2023
document
Oderwald Blázquez, Adrian (author)
For certain geotechnical structures, such as dikes and levees, the design quality is heavily reliant on the sampling quality. In addition, the extent of consequences on geotechnical design of using parameters from samples with a certain degree of disturbance in laboratory tests is unclear. While the available literature has been mainly focussed...
master thesis 2022
document
de Albuquerque Gleizer, G. (author)
Event-triggered control (ETC) and self-triggered control (STC) are sample-and-hold control paradigms in which sensor data is only updated to the controller when necessary, often aperiodically, in contrast to the well-established periodic sampling paradigm. In ETC, a state-dependent event triggers a transmission, while in STC the controller...
doctoral thesis 2022
document
He, K. (author), Dong, Chaoyang (author), Wang, Qing (author)
This paper deals with the problem of active disturbance rejection control (ADRC) design for a class of uncertain nonlinear systems with sporadic measurements. A novel extended state observer (ESO) is designed in a cascade form consisting of a continuous time estimator, a continuous observation error predictor, and a reset compensator. The...
journal article 2022
document
Terheijden, O. T. (author), van Gelder, P.H.A.J.M. (author), Broere, W. (author)
When process disturbances occur, workers on the Tunnel Boring Machine (TBM) will need to operate outside safe zones, reducing or eliminating the safety barrier ‘distance’ between them and potential sources of risk. Consequently, disturbances have a higher risk potential than regular TBM operations. By comparing the risks of registered process...
journal article 2022
document
Yue, Dongdong (author), Baldi, S. (author), Cao, Jinde (author)
In this paper, we revisit the problem of consensus disturbance rejection for multiagent systems over a digraph, but from a different perspective, i.e., the perspective of a directed spanning tree (DST). When the minimum nonzero real part of the Laplacian eigenvalues is available, we reproduce the sufficient lower bound for a static...
conference paper 2022
document
Mancinelli, A. (author), Smeur, E.J.J. (author), Remes, B.D.W. (author), de Croon, G.C.H.E. (author)
In the last few decades, the UAV research has been focusing on hybrid vehicles with Vertical Takeoff and Landing (VTOL) capabilities. Opposed to copters, hybrid vehicles are highly influenced by wind disturbances. This paper presents a novel quad-plane design that uses four dual-axis tilting rotors to enhance the wind rejection capability of...
conference paper 2022
document
Ding, J. (author), Han, Linyan (author), Ge, Ligang (author), Liu, Yizhang (author), Pang, Jianxin (author)
Robust locomotion is a challenging task for humanoid robots, especially when considering dynamic disturbances. This article proposes a disturbance observer-based cascaded model predictive control (MPC) approach for bipedal locomotion, with the capability of exploiting ankle, stepping, hip and height variation strategies. Specifically, based...
journal article 2022
document
Zhang, Lei (author), Du, Zhe (author), Valdez Banda, Osiris A. (author), Goerlandt, F.M.B. (author), Du, Lei (author), Li, Xiaobin (author)
Towing operations are highly reliant on the experience of the towing operators. Safety concerns arise when towing operations are subjected to environmental disturbances and dynamic traffic conditions. However, a systematic framework and approaches to enhance the safety and automation of towing operations remain lacking. This work proposes a...
journal article 2022
document
Zumstein, Marco (author), Chen, Qian (author), Adey, Bryan T. (author), Hall, Daniel M. (author)
How bridge refurbishment projects are performed requires a trade-off between the speed and cost of the project and the amount of traffic disturbances during the project. A possible way to help reach a better balance between these two extremes is the ASTRA Bridge developed in Switzerland. The ASTRA Bridge is a 236-meter long steel ramp system...
journal article 2022
document
Doropoulos, Christopher (author), Gómez-Lemos, Luis A. (author), Salee, Kinam (author), McLaughlin, M. James (author), Tebben, Jan (author), van Koningsveld, M. (author), Feng, Ming (author), Babcock, Russell C. (author)
Positive feedbacks driving habitat-forming species recovery and population growth are often lost as ecosystems degrade. For such systems, identifying mechanisms that limit the re-establishment of critical positive feedbacks is key to facilitating recovery. Theory predicts the primary drivers limiting system recovery shift from biological to...
journal article 2022
document
Mooren, Noud (author), Witvoet, Gert (author), Oomen, T.A.E. (author)
Repetitive control enables the exact compensation of periodic disturbances if the internal model is appropriately selected. The aim of this paper is to develop a novel synthesis technique for repetitive control (RC) based on a new more general internal model. By employing a Gaussian process internal model, asymptotic rejection is obtained for...
journal article 2022
Searched for: subject%3A%22disturbances%22
(1 - 20 of 110)

Pages