Searched for: subject:"Modelling"
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Armanini, S.F. (author), Caetano, J. V. (author), de Visser, C.C. (author), Pavel, M.D. (author), de Croon, G.C.H.E. (author), Mulder, Max (author)
Despite significant interest in tailless flapping-wing micro aerial vehicle designs, tailed configurations are often favoured, as they offer many benefits, such as static stability and a simpler control strategy, separating wing and tail control. However, the tail aerodynamics are highly complex due to the interaction between the unsteady...
journal article 2019
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van der El, K. (author), Pool, D.M. (author), Mulder, Max (author)
Drivers rely on a variety of cues from different modalities while steering, but which exact cues are most important and how these different cues are used is still mostly unclear. The goal of our research project is to increase understanding of driver steering behavior; through a measuring and modeling approach we aim to extend the validity of...
journal article 2019
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Barendswaard, S. (author), Pool, D.M. (author), van Paassen, M.M. (author), Mulder, Max (author)
Vehicle control tasks require simultaneous control of multiple degrees-of-freedom. Most multi-axis human-control modeling is limited to the modeling of multiple fully independent single axes. This paper contributes to the understanding of multi-axis control behavior and draws a more realistic and complete picture of dual-axis manual control....
journal article 2019
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Landman, H.M. (author), van Paassen, M.M. (author), Groen, Eric L. (author), Bronkhorst, Adelbert W. (author), Mulder, Max (author)
Objective: This study tested whether simulator-based training of pilot responses to unexpected or novel events can be improved by including unpredictability and variability in training scenarios. Background: Current regulations allow for highly predictable and invariable training, which may not be sufficient to prepare pilots for unexpected...
journal article 2018
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Drop, F.M. (author), Pool, D.M. (author), van Paassen, M.M. (author), Mulder, Max (author), Bülthoff, Heinrich H. (author)
The human controller (HC) in manual control of a dynamical system often follows a visible and predictable reference path (target). The HC can adopt a control strategy combining closed-loop feedback and an open-loop feedforward response. The effects of the target signal waveform shape and the system dynamics on the human feedforward dynamics...
journal article 2018
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van der El, K. (author), Padmos, S. (author), Pool, D.M. (author), van Paassen, M.M. (author), Mulder, Max (author)
In manual control tasks, preview of the target trajectory ahead is often limited by poor lighting, objects, or display edges. This paper investigates the effects of limited preview, or preview time, in manual tracking tasks with single- and double-integrator controlled element dynamics. A quasi-linear human controller model is used to predict...
journal article 2018
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van der El, K. (author), Pool, D.M. (author), van Paassen, M.M. (author), Mulder, Max (author)
Due to linear perspective, the visual stimulus provided by a previewed reference trajectory reduces with increasing distance ahead. This paper investigates the effects of linear perspective on human use of preview in manual control tasks. Results of a human-in-the-loop tracking experiment are presented, where the linear perspective&#x0027...
journal article 2018
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Landman, H.M. (author), Groen, Eric L. (author), van Paassen, M.M. (author), Bronkhorst, Adelbert W. (author), Mulder, Max (author)
Objective: A conceptual model is proposed in order to explain pilot performance in surprising and startling situations. Background: Today’s debate around loss of control following in-flight events and the implementation of upset prevention and recovery training has highlighted the importance of pilots’ ability to deal with unexpected events....
journal article 2017
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Mulder, Max (author), Pool, D.M. (author), Abbink, D.A. (author), Boer, E.R. (author), Zaal, P.M.T. (author), Drop, F.M. (author), van der El, K. (author), van Paassen, M.M. (author)
Manual control cybernetics aims to understand and describe how humans control vehicles and devices using mathematical models of human control dynamics. This “cybernetic approach” enables objective and quantitative comparisons of human behavior, and allows a systematic optimization of human control interfaces and training...
journal article 2017
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Duarte, R.F.M. (author), Pool, D.M. (author), van Paassen, M.M. (author), Mulder, Max (author)
In this paper, the Linear Parameter Varying (LPV) model identification framework is applied to estimating time-varying human controller (HC) dynamics in a single-loop tracking task. Given the inherently unknown time changes in HC behavior, a global LPV approach with experimentally determined Scheduling Functions (SFs) is needed for this...
conference paper 2017
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Pronker, A.J. (author), Abbink, D.A. (author), van Paassen, M.M. (author), Mulder, Max (author)
Humans can rapidly change their low-frequency arm dynamics (i.e., stiffness) to resist forces or give way to them. Quantifying driver’s time-varying arm dynamics is important for the development of steer-by-wire systems and haptic driver support systems. Conventional LTI identification, and even time-varying techniques such as wavelets, fail to...
conference paper 2017
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Drop, F.M. (author), Pool, D.M. (author), van Paassen, M.M. (author), Mulder, Max (author), Bülthoff, Heinrich H. (author)
Realistic manual control tasks typically involve predictable target signals and random disturbances. The human controller (HC) is hypothesized to use a feedforward control strategy for target-following, in addition to feedback control for disturbance-rejection. Little is known about human feedforward control, partly because common system...
journal article 2017
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Drop, F.M. (author), Pool, D.M. (author), Mulder, M. (author), Bülthoff, Heinrich H. (author)
The human controller (HC) can greatly improve target-tracking performance by utilizing a feedforward operation on the target signal, in addition to a feedback response. System identification methods are used to determine the correct HC model structure: purely feedback or a combined feedforward/feedback model. In this paper, we investigate three...
journal article 2016
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Mulder, W.A. (author), Shamasundara, R. (author)
We consider isotropic elastic wave propagation with continuous mass-lumped finite elements on tetrahedra with explicit time stepping. These elements require higher-order polynomials in their interior to preserve accuracy after mass lumping and are only known up to degree 3. Global assembly of the symmetric stiffness matrix is a natural approach...
journal article 2016
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Drop, F.M. (author), Mulder, M. (author), Bülthoff, Heinrich H. (author), de Vries, R. (author)
In the manual control of a dynamic system, the human controller (HC) is often required to follow a visible and predictable reference path. Using the predictable aspect of a reference signal, through applying feedforward control, the HC can significantly improve performance as compared to a purely feedback control strategy. A proper definition of...
journal article 2016
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Mulder, Max (author), Pool, D.M. (author), Abbink, D.A. (author), Boer, E.R. (author), van Paassen, M.M. (author)
Manual control cybernetics aims to understand and describe how humans control vehicles and devices, such that more effective human-machine interfaces can be designed. Current cybernetics theory is primarily based on technology and analysis methods developed in the 1960s and has shown to be limited in its capability to capture the full breadth of...
conference paper 2016
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Barendswaard, S. (author), Pool, D.M. (author), Mulder, Max (author)
While many realistic manual control tasks require human operators to control multiple degrees-of-freedomsimultaneously, our understanding of such multi-axis manual control has not moved far beyond considering it simply as the control of multiple fully-independent axes. This investigation aims to further our understanding of multi-axis control by...
conference paper 2016
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Van Emmerik, T.H.M. (author), Mulder, G. (author), Eilander, D. (author), Piet, M. (author), Savenije, H.H.G. (author)
The hydrological decade on Predictions in Ungauged Basins (PUB) led to many new insights in model development, calibration strategies, data acquisition and uncertainty analysis. Due to a limited amount of published studies on genuinely ungauged basins, model validation and realism assessment of model outcome has not been discussed to a great...
journal article 2015
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Sun, L.G. (author), De Visser, C.C. (author), Chu, Q.P. (author), Mulder, J.A. (author)
Avoiding high computational loads is essential to online aerodynamic model identi- fication algorithms, which are at the heart of any model-based adaptive flight control system. Multivariate simplex B-spline (MVSB) methods are excellent function approximation tools for modeling the nonlinear aerodynamics of high performance aircraft. However,...
journal article 2013
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Minisini, S. (author), Zhebel, E. (author), Kononov, A. (author), Mulder, W.A. (author)
Modeling and imaging techniques for geophysics are extremely demanding in terms of computational resources. Seismic data attempt to resolve smaller scales and deeper targets in increasingly more complex geologic settings. Finite elements enable accurate simulation of time-dependent wave propagation in heterogeneous media. They are more costly...
journal article 2013
Searched for: subject:"Modelling"
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