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Chen, X. (author), Liu, X. (author), Qian, Z. (author), Lei, Z. (author)Reliable and durable asphalt surfacing systems still remain to be desired for the long-spanned orthotropic steel bridges as the nationally and internationally reports on distresses in deck pavement. Based on ten-year research works, this paper has presented a brief review and discussion of the Chinese practices and experiences of deck pavement...conference paper 2012
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Mertens, C. (author), Costa Fernandez, J.L. (author), Sodja, J. (author), Sciacchitano, A. (author), van Oudheusden, B.W. (author)The aeroelastic response of a highly flexible wing to periodic gust excitation is determined experimentally. The integrated optical measurement approach that is applied provides combined measurements of the structural response of the wing and the unsteady flow field around it. The aeroelastic loads acting on the wing are derived from these...conference paper 2022
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Scali, M. (author), Kreeft (student), Davey (author), Breedveld, P. (author), Dodou, D. (author)Flexible steerable needles can follow complex curved paths inside the human body. In a previous work, we developed a multiple-part steerable needle prototype with a diameter of 1.2 mm, inspired by the ovipositor of parasitoid wasps. The needle consisted of seven nickel-titanium longitudinally aligned wires held together at the tip by a...conference paper 2017
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de Jong, T.L. (author), Klink, Camiel (author), Moelker, Adriaan (author), Dankelman, J. (author), van den Dobbelsteen, J.J. (author)Introduction: Accurate needle placement is crucial in image-guided needle interventions. A targeting error may be introduced due to undesired needle deflection upon insertion through tissue, caused by e.g. patient breathing, tissue heterogeneity, or asymmetric needle tip geometries. This paper aims to quantify needle deflection in thermal...conference paper 2018
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Clogenson, H.C.M. (author)Endovascular diagnostics and interventions are performed using long, thin and flexible instruments that are inserted in the blood vessel and manipulated toward a target in the vasculature. This technique has proven to be successful with the millions of patients diagnosed and treated worldwide every year. Though, this technique presents several...doctoral thesis 2014
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Gaitas, A. (author)This dissertation aims to advance the current state of cantilevers with integrated metal thermal and deflection sensing elements. Metallic sensing elements enable the use of alternative substrate materials (such as polymers), that tend to exhibit higher compliance properties and are more robust (less brittle) compared to Si or Si3N4 cantilevers....doctoral thesis 2013
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Andrianov, A.O.I. (author)Due to the growth of their population, urban development and the corresponding expansion of land use, several countries have decided to build artificial islands in the sea to decrease the pressure on the heavily used land space. The reclamation of the land from the sea is already widely applied, however, there is also an attractive new...doctoral thesis 2005
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Huang, M. (author)The development of offshore wind energy, especially the steps towards deep water and/or higher density wind farms, revives the prospects of vertical axis wind turbines (VAWTs). Because VAWTs may reduce the cost of floating structures, there is a potential to lower energy costs. However, VAWTs are often assumed to be less efficient and less...doctoral thesis 2023
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Veerman, R.P. (author)The Dutch road infrastructure contains a large number of concrete bridges and viaducts. Malfunction of these bridges and viaducts has large financial consequences. To avoid malfunctions of bridges, bridges need to be inspected frequently and actions should be taken when required. The reliability of the inspections of the health of a bridge could...doctoral thesis 2017
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Song, Yang (author), Zhang, Mingjie (author), Wang, H. (author)The wind deflection of overhead contact lines (OCLs) challenges the stable and safe operation of electrified railways. The steady wind causes the static deflection of the contact line, while the fluctuating wind leads to the OCL buffeting. This paper performs a response spectrum analysis of the wind deflection caused by the combined effects...journal article 2021
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Zhang, P. (author), Li, S. (author), Li, Z. (author)Short pitch corrugation is a quasi-periodic rail defect that induces a high level of noise and accelerates track degradation. This paper proposes a methodology to mitigate short pitch corrugation by rail constraint design, including four steps. In Step 1, corrugation is numerically reproduced by employing a three-dimensional (3D) finite...journal article 2023
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Sarafraz, A. (author), Givois, A.P.P. (author), Roslon, I.E. (author), Liu, Hanqing (author), Brahmi, Hatem (author), Verbiest, G.J. (author), Steeneken, P.G. (author), Alijani, F. (author)The resonance frequency of ultra-thin layered nanomaterials changes nonlinearly with the tension induced by the pressure from the surrounding gas. Although the dynamics of pressurized nanomaterial membranes have been extensively explored, recent experimental observations show significant deviations from analytical predictions. Here, we...journal article 2023
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Pinto Ribeiro, A. (author), Casalino, D. (author), Ferreira, Carlos (author)This paper presents low speed fluid structure interaction simulations of a highly flexible wing at various flow conditions, including flutter and excitation from sinusoidal gusts. Such wings are becoming more relevant in recent years, due to their potential for improving aerodynamics and reducing weight, while their flutter characteristics...journal article 2023
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Peters, T.J. (author), Tichem, M. (author)This paper describes the design, fabrication and characterization of electrothermal bimorph actuators consisting of polysilicon on top of thick (>10 μm ) silicon dioxide beams. This material platform enables the integration of actuators with photonic waveguides, producing mechanically-flexible photonic waveguide structures that are...journal article 2016
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van der Weijde, J.O. (author), Smit (student), B. (author), Fritschi, M. (author), van de Kamp, C. (author), Vallery, H. (author)The recently introduced twisted and coiled polymer muscle is an inexpensive and lightweight compliant actuator. Incorporation of themuscle in applications that rely on feedback creates the need for deflection and force sensing. In this paper, we explore a sensing principle that does not require any bulky or expensive additional hardware: Self...journal article 2017
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Henken, K.R. (author), Seevinck, PR (author), Dankelman, J. (author), van den Dobbelsteen, J.J. (author)This study aims to develop and evaluate a manually controlled steerable needle that is compatible with and visible on MRI to facilitate full intra-procedural control and accurate navigation in percutaneous interventions. The steerable needle has a working channel that provides a lumen to a cutting stylet or a therapeutic instrument. A steering...journal article 2017
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De Falco, I. (author), Culmone, C. (author), Menciassi, Arianna (author), Dankelman, J. (author), van den Dobbelsteen, J.J. (author)Needles are advanced tools commonly used in minimally invasive medical procedures. The accurate manoeuvrability of flexible needles through soft tissues is strongly determined by variations in tissue stiffness, which affects the needle-tissue interaction and thus causes needle deflection. This work presents a variable stiffness mechanism for...journal article 2018
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Singh, M. (author), Santbergen, R. (author), Mazzarella, L. (author), Madrampazakis, A. (author), Yang, G. (author), Vismara, R. (author), Remes, Z. (author), Weeber, A.W. (author), Zeman, M. (author), Isabella, O. (author)The optical modelling for optimizing high-efficiency c-Si solar cells endowed with poly-SiO<sub>x</sub> or poly-SiC<sub>x</sub> carrier-selective passivating contacts (CSPCs) demands a thorough understanding of their optical properties, especially their absorption coefficient. Due to the mixed phase nature of these CSPCs, spectroscopic...journal article 2020
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Lantsoght, E.O.L. (author), van der Veen, C. (author), De Boer, Ane (author), van der Ham, Herbert (author)In 1997, the Second Stichtse Bridge was built in the Netherlands using the balanced cantilever method. The use of high-strength concrete was proposed. At that time, the long-term behaviour of this material was not known, and no code provisions were applicable. Therefore, it was proposed to monitor the material behaviour and the deflections of...journal article 2018
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Zhang, P. (author), Li, S. (author), Nunez, Alfredo (author), Li, Z. (author)In this paper, we present a solution method based on finite element (FE) modeling to predict multimodal dispersive waves in a free rail. As well as the modal behaviors and wavenumber-frequency dispersion relations, the phase and group velocities of six types of propagative waves are also derived and discussed in detail in the frequency range...journal article 2021
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