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Molenkamp, T. (author), Tsouvalas, A. (author), Metrikine, A. (author)Offshore wind energy holds significant promise as a solution in the energy transition. However, installing offshore pile foundations can generate substantial levels of underwater noise, posing potential risks to marine life. This paper examines the influence of asymmetric impact forces and pile inclination on producing underwater noise and...journal article 2024
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Magnetically tunable supercurrent in dilute magnetic topological insulator-based Josephson junctionsMandal, Pankaj (author), Mondal, Soumi (author), Stehno, Martin P. (author), Ilić, Stefan (author), Bergeret, F. Sebastian (author), Klapwijk, T.M. (author), Gould, Charles (author), Molenkamp, Laurens W. (author)A superconductor, when exposed to a spin-exchange field, can exhibit spatial modulation of its order parameter, commonly referred to as the Fulde–Ferrell–Larkin–Ovchinnikov state. Such a state can be induced by controlling the spin-splitting field in Josephson junction devices, allowing access to a wide range of the phase diagram. Here we...journal article 2024
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Molenkamp, T. (author), Tsetas, A. (author), Tsouvalas, A. (author), Metrikine, A. (author)Vibratory offshore pile driving offers a potential solution for reducing the underwater noise generated during the installation of foundation piles compared to using impact hammers. Existing noise prediction models are specifically tailored to impact pile driving scenarios. This paper introduces a novel methodology for underwater noise...journal article 2024
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Gutiérrez Martínez, Jorge (author), Bezner, Maor (author), Molenkamp, A. (author), van den Bos, J.P. (author), Hofland, Bas (author), Leblanc, Philippe (author), Rella, Andrew (author), Rosenberg, Yaeli (author), Sella, Ido (author)ECOncrete®‘s Coastalock is an ecologically designed armour unit, providing an alternative and/or a complement to traditional armour layers with ecologically enhanced armouring that provides shoreline stabilization, while also creating well-defined local ecosystems that mimic natural rock pools. The 2D physical model tests performed at TU Delft...conference paper 2023
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Tsetas, A. (author), Tsouvalas, A. (author), Sánchez Gómez, S. (author), Pisano, F. (author), Kementzetzidis, Evangelos (author), Molenkamp, T. (author), Elkadi, A.S.K. (author), Metrikine, A. (author)Gentle Driving of Piles (GDP) is a new technology for the vibratory installation of tubular (mono)piles. Its founding principle is that both efficient installation and low noise emission can be achieved by applying to the pile a combination of axial and torsional vibrations. Preliminary development and demonstration of the proposed technology...journal article 2023
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Molenkamp, T. (author), Tsouvalas, A. (author), Metrikine, A. (author)The growing interest in offshore wind leads to an increasing number of wind farms planned to be constructed in the coming years. Installation of these piles often causes high underwater noise levels that harm aquatic life. State-of-the-art models have problems predicting the noise and seabed vibrations from vibratory pile driving. A significant...journal article 2023
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Tsetas, A. (author), Tsouvalas, A. (author), Molenkamp, T. (author), Metrikine, A. (author)This paper presents a computationally efficient mode-matching method to predict the relative axial motion of two elastic rods in frictional contact. The motion is of the stick-slip type and is non-uniform along the rods. The proposed method utilizes the piecewise linearity of the problem in time and space. The original set of nonlinear...journal article 2022
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Tsetas, A. (author), Tsouvalas, A. (author), Molenkamp, T. (author), Metrikine, A. (author)In the original publication, Eqs. (11) and (17) are published incorrectly, and this has been corrected as follows: (Formula presented.) The original article has been revised.journal article 2022
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Maghsoudloo, A. (author), Askarinejad, A. (author), de Jager, R.R. (author), Molenkamp, F. (author), Hicks, M.A. (author)Planning a monitoring campaign for a natural submarine slope prone to static liquefaction is a challenging task due to the sudden nature of flow slides. Therefore, gaining a better insight by monitoring the changes in pore pressure and acceleration of the soil mass, prior to and at the onset of static liquefaction, of submerged model slopes...journal article 2021
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Molenkamp, T. (author), Tsetas, A. (author), Tsouvalas, A. (author), Metrikine, A. (author)In this paper, a new model is developed to describe the nonlinear dynamics of twoaxially deformable bars sliding relative to each other in which the interaction is governed byfriction. The first bar is fixed at one end and is subjected to a distributed normal force perpen-dicular to its axis to activate friction at the common interface, while...conference paper 2020
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Tsouvalas, A. (author), Molenkamp, T. (author), Canny, Khairina (author), Kroon, D.P. (author), Versluis, Marco (author), Peng, Y. (author), Metrikine, A. (author)The paper establishes a computationally inexpensive method to deal with the dynamic response of liquid storage tanks subjected to seismic excitation including dynamic soil-structure interaction. The tank is modelled as a thin shell, the stored liquid is described asan inviscid and incompressible fluid and the soil medium is modelled as an...conference paper 2020
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Tsetas, A. (author), Sánchez Gómez, S. (author), Tsouvalas, A. (author), van Beek, C. (author), Sadeghi Tehrani, F. (author), Kementzetzidis, E. (author), Pisano, F. (author), Elkadi, A.S.K. (author), Segeren, M.L.A. (author), Molenkamp, T. (author), Metrikine, A. (author)A novel pile-driving technique, named Gentle Driving of Piles (GDP), that combines axial low-frequency and torsional high-frequency vibrations has been developed and tested recently. During the experimental campaign, several piles were installed onshore, making use of the GDP shaker. Besides those, a number of additional piles were installed...conference paper 2020
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Kleeorin, Yaakov (author), Thierschmann, R. (author), Buhmann, Hartmut (author), Georges, Antoine (author), Molenkamp, Laurens W. (author), Meir, Yigal (author)Entropy is a fundamental thermodynamic quantity indicative of the accessible degrees of freedom in a system. While it has been suggested that the entropy of a mesoscopic system can yield nontrivial information on emergence of exotic states, its measurement in such small electron-number system is a daunting task. Here we propose a method to...journal article 2019
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Sánchez, Rafael (author), Thierschmann, R. (author), Molenkamp, Laurens W. (author)We theoretically investigate the propagation of heat currents in a three-terminal quantum dot engine. Electron-electron interactions introduce state-dependent processes which can be resolved by energy-dependent tunneling rates. We identify the relevant transitions which define the operation of the system as a thermal transistor or a thermal...journal article 2017
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Sánchez, Rafael (author), Thierschmann, R. (author), Molenkamp, Laurens W. (author)Fluctuations are strong in mesoscopic systems and have to be taken into account for the description of transport. We show that they can even be used as a resource for the operation of a system as a device. We use the physics of single-electron tunneling to propose a bipartite device working as a thermal transistor. Charge and heat currents in...journal article 2017
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Domínguez, F. (author), Kashuba, O (author), Bocquillon, E (author), Wiedenmann, J (author), Deacon, R. S. (author), Klapwijk, T.M. (author), Platero, G (author), Molenkamp, Laurens W. (author), Trauzettel, B. (author), Hankiewicz, E. M. (author)We investigate theoretically the dynamics of a Josephson junction in the framework of the resistively shunted junction model. We consider a junction that hosts two supercurrent contributions: a 2π and a 4π periodic in phase, with intensities I2π and I4π, respectively. We study the size of the Shapiro steps as a function of the ratio of the...journal article 2017
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Deacon, R. S. (author), Wiedenmann, J (author), Bocquillon, E (author), Domínguez, F. (author), Klapwijk, T.M. (author), Leubner, P. (author), Brüne, C (author), Hankiewicz, E. M. (author), Tarucha, S (author), Ishibashi, K (author), Buhmann, H (author), Molenkamp, Laurens W. (author)Frequency analysis of the rf emission of oscillating Josephson supercurrent is a powerful passive way of probing properties of topological Josephson junctions. In particular, measurements of the Josephson emission enable the detection of topological gapless Andreev bound states that give rise to emission at half the Josephson frequency f<sub...review 2017
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Wiedenmann, Jonas (author), Liebhaber, Eva (author), Kübert, Johannes (author), Bocquillon, Erwann (author), Burset, Pablo (author), Ames, Christopher (author), Buhmann, Hartmut (author), Klapwijk, T.M. (author), Molenkamp, Laurens W. (author)The proximity-induced superconducting state in the three-dimensional topological insulator HgTe has been studied using electronic transport of a normal metal-superconducting point contact as a spectroscopic tool (Andreev point-contact spectroscopy). By analyzing the conductance as a function of voltage for various temperatures, magnetic...journal article 2017
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de Jager, R.R. (author), Maghsoudloo, A. (author), Askarinejad, A. (author), Molenkamp, F. (author)The liquefaction tank is an experimental facility developed to conduct physical scale model tests of liquefaction flow slides. We developed the liquefaction tank to evaluate the performance of advanced numerical models for submerged slopes composed of sand. For the long-term, the research with the liquefaction tank aims at composing a database...conference paper 2017
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Wiedenmann, J. (author), Bocquillon, E. (author), Deacon, R.S. (author), Hartinger, S. (author), Hermann, O. (author), Klapwijk, T.M. (author), Maier, L. (author), Ames, C. (author), Brüne, C. (author), Gould, C. (author), Oiwa, A. (author), Ishibashi, K. (author), Tarucha, S. (author), Buhmann, H. (author), Molenkamp, L.W. (author)The Josephson effect describes the generic appearance of a supercurrent in a weak link between two superconductors. Its exact physical nature deeply influences the properties of the supercurrent. In recent years, considerable efforts have focused on the coupling of superconductors to the surface states of a three-dimensional topological...journal article 2016
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