Searched for: author%3A%22van+Keulen%2C+A.%22
(1 - 9 of 9)
document
Wang, W. (author), van Keulen, A. (author), Wu, J. (author)
Additive manufacturing of metal parts involves phase transformations and high temperature gradients which lead to uneven thermal expansion and contraction, and, consequently, distortion of the fabricated components. The distortion has a great influence on the structural performance and dimensional accuracy, e.g., for assembly. It is therefore...
journal article 2023
document
Zhang, Y. (author), Wang, Q. (author), Tichem, M. (author), van Keulen, A. (author)
Multi-stable structures are able to achieve significant geometric change and retain specific deformed configurations after the loads have been removed. This reconfiguration property enables, for example, to design metamaterials with tunable features. In this work, a type of multi-stable metastructures exhibiting both level and tilted stable...
journal article 2020
document
Wang, W. (author), Munro, D.P. (author), Wang, C.C. (author), van Keulen, A. (author), Wu, J. (author)
The design of optimal structures and the planning of (additive manufacturing) fabrication sequences have been considered typically as two separate tasks that are performed consecutively. In the light of recent advances in robot-assisted (wire-arc) additive manufacturing which enable addition of material along curved surfaces, we present a...
journal article 2019
document
Zhang, Y. (author), Wang, Q. (author), Tichem, M. (author), van Keulen, A. (author)
abstract 2018
document
Wang, Q. (author), Goosen, J.F.L. (author), van Keulen, A. (author)
Spanwise twist can dominate the deformation of flapping wings and alters the aerodynamic performance and power efficiency of flapping wings by changing the local angle of attack. Traditional Fluid–Structure Interaction (FSI) models, based on Computational Structural Dynamics (CSD) and Computational Fluid Dynamics (CFD), have been used to...
journal article 2017
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Wang, Q. (author), Goosen, J.F.L. (author), van Keulen, A. (author)
Flapping wings can pitch passively about their pitching axes due to their flexibility, inertia, and aerodynamic loads. A shift in the pitching axis location can dynamically alter the aerodynamic loads, which in turn changes the passive pitching motion and the flight efficiency. Therefore, it is of great interest to investigate the optimal...
journal article 2017
document
Wang, Q. (author), Goosen, J.F.L. (author), van Keulen, A. (author)
Quasi-steady aerodynamic models play an important role in evaluating aerodynamic performance and conducting design and optimization of flapping wings. The kinematics of flapping wings is generally a resultant motion of wing translation (yaw) and rotation (pitch and roll). Most quasi-steady models are aimed at predicting the lift and thrust...
journal article 2016
document
Goosen, J.F.L. (author), Peters, H.J. (author), Wang, Q. (author), Tiso, P. (author), Van Keulen, A. (author)
conference paper 2013
document
Wang, Q. (author), Goosen, J.F.L. (author), Van Keulen, A. (author)
conference paper 2013
Searched for: author%3A%22van+Keulen%2C+A.%22
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