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Mulder, I.J. (author), Jaskiewicz, T.J. (author), Morelli, Nicola (author)
Along with the urgent need to reinvent our society, a series of paradigm shifts are already shaping transitions toward a more participatory and digital society. The current work takes stock of the promise of open data as a new resource and elaborates upon the maker movement, which has spurred people’s capacity to participate and has provided...
journal article 2019
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Geevers, S. (author), Mulder, W.A. (author), van der Vegt, J. J.W. (author)
We analyse the dispersion properties of two types of explicit finite element methods for modelling acoustic and elastic wave propagation on tetrahedral meshes, namely mass-lumped finite element methods and symmetric interior penalty discontinuous Galerkin methods, both combined with a suitable Lax–Wendroff time integration scheme. The...
journal article 2018
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in 't Veld, A.C. (author), Mulder, T.J. (author), Looye, Gertjan H.N. (author)
The Delft University laboratory aircraft Cessna Citation II has the capability to implement and test new auto pilot control laws. The aircraft is equipped as a Fly-By-Wire testbed, that enables the user to control the aircraft through an experimental computer and directly have control over the control surfaces. An extra control stick is mounted...
conference paper 2018
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van der El, K. (author), Padmos, S. (author), Pool, D.M. (author), van Paassen, M.M. (author), Mulder, M. (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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Naastepad, C.W.M. (author), Mulder, Jesse M. (author)
(Expected) adverse effects of the ‘ICT Revolution’ on work and opportunities for individuals to use and develop their capacities give a new impetus to the debate on the societal implications of technology and raise questions regarding the ‘responsibility’ of research and innovation (RRI) and the possibility of achieving ‘inclusive and...
journal article 2018
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Cleij, D. (author), Venrooij, J. (author), Pretto, Paolo (author), Pool, D.M. (author), Mulder, M. (author), Bülthoff, Heinrich H. (author)
Motion cueing algorithms are used in motion simulation to map the inertial vehicle motion onto the limited simulator motion space. This mapping causes mismatches between the unrestricted visual motion and the constrained inertial motion, which results in perceived motion incongruence (PMI). It is still largely unknown what exactly causes...
journal article 2018
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Van Baelen, D. (author), Ellerbroek, J. (author), van Paassen, M.M. (author), Mulder, M. (author)
Current Airbus aircraft use a fly-by-wire control device: a passive spring-damper system which generates, without any force feedback, an electrical signal to the flight control computer. Additionally, a hard flight envelope protection system is used which can limit the inputs of the pilot when approaching the edges of the flight envelope. To...
conference paper 2018
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Puerari, E. (author), de Koning, J.I.J.C. (author), von Wirth, Timo (author), Karré, Philip M. (author), Mulder, I.J. (author), Loorbach, Derk (author)
Citizens and urban policy makers are experimenting with collaborative ways to tackle wicked urban issues, such as today’s sustainability challenges. In this article, we consider one particular way of collaboration in an experimental setting: Urban Living Labs (ULLs). ULLs are understood as spatially embedded sites for the co-creation of...
journal article 2018
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van Grootheest, Andries (author), Pool, D.M. (author), van Paassen, M.M. (author), Mulder, M. (author)
Time-varying human-operator (HO) adaptation in basic manual-control tasks is barely understood, as most HO identification methods do not explicitly take into account time variations. An identification procedure based on both batch and recursive autoregressive exogenous (ARX) models is used in this paper for captur- ing HO adaptation to time...
conference paper 2018
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Mulder, I.J. (author), Loorbach, Derk (author)
conference paper 2018
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van der El, K. (author), Pool, D.M. (author), van Paassen, M.M. (author), Mulder, M. (author)
This paper investigates how humans use a previewed target trajectory for control in tracking tasks with various controlled element dynamics. The human's hypothesized "near" and "far" control mechanisms are first analyzed offline in simulations with a quasi-linear model. Second, human control behavior is quantified by fitting the same model to...
journal article 2018
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Mulder, W.A. (author)
One way to deal with the storage problem for the forward source wavefield in reverse time migration and full-waveform inversion is the reconstruction of that wavefield during reverse time stepping along with the receiver wavefield. Apart from the final states of the source wavefield, this requires a strip of boundary values for the whole time...
journal article 2018
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Deldycke, Pieter-Jan (author), Van Baelen, D. (author), Pool, D.M. (author), van Paassen, M.M. (author), Mulder, M. (author)
The use of haptic feedback as a tool for skill training has shown benefits for the formation ofmotor-memory and support for certain temporal tasks. Therefore, this research focuses on the development of a haptic aid for supporting the training of the challenging manual flare maneuver in initial pilot training. The haptic aid, which consisted of...
conference paper 2018
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Geevers, S. (author), Mulder, W.A. (author), van der Vegt, J.J.W. (author)
Spectral elements with mass lumping allow for explicit time stepping and are therefore attractive for modelling seismic wave propagation. Their formulation on rectangular elements is straighforward, but for tetrahedra only elements up to degree 3 are known. To preserve accuracy after mass lumping, these elements require additional nodes that...
abstract 2018
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Mobertz, Xander (author), Pool, D.M. (author), van Paassen, M.M. (author), Mulder, M. (author)
This paper describes a human-in-the-loop experiment performed in TU Delft’s SIMONA Research Simulator to explicitly investigate the effects of biodynamic feedthrough (BDFT) on the execution of a two-dimensional touchscreen waypoint dragging task in turbulence. In the experiment, 16 participants performed the same task in a stationary simulator...
conference paper 2018
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Geevers, S. (author), Mulder, W.A. (author), van der Vegt, J. J.W. (author)
We present a new accuracy condition for the construction of continuous mass-lumped elements. This condition is less restrictive than the one currently used and enabled us to construct new mass-lumped tetrahedral elements of degrees 2 to 4. The new degree-2 and degree-3 tetrahedral elements require 15 and 32 nodes per element, respectively, while...
journal article 2018
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Shamasundar, R. (author), Mulder, W.A. (author)
Finite elements can, in some cases, outperform finite-difference methods for modelling wave propagation in complex geological models with topography. In the weak form of the finiteelement method, the delta function is a natural way to represent a point source. If, instead of the usual second-order form, the first-order form of the wave equation...
journal article 2018
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Slingerland, G. (author), Mulder, I.J. (author), Jaskiewicz, T.J. (author)
In Rotterdam, the participatory turn has spurred various bottom-up communities around public parks. These communities aim to take care of the parks in their neighbourhood and search for ways to demonstrate the societal value of their initiative. The current work explores how digital matchmaking services can strengthen community relationships. A...
conference paper 2018
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Kun, P. (author), Mulder, I.J. (author), Kortuem, G.W. (author)
The current work elaborates upon a Generative Data Exploration method, which is a design technique aiming at supporting designers in integrating data in their design activities. Digital data offers new opportunities in all sort of professional domains, yet existing approaches and tools to manipulate data are predominantly targeted at data...
conference paper 2018
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van der El, K. (author), Pool, D.M. (author), van Paassen, M.M. (author), Mulder, M. (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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