VDI Verlag eLibrary

Partitioned Fluid-Structure Interaction Simulation of Maritime Applications

Jorrid Lund

Series: Mechanik/Bruchmechanik

Volume 360 2024

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„… 6 Wave energy converterAs part of collaborative research between Isfahan University of Technology …” „… _18-360_mP.indd 80 18.04.24 06:276 Wave energy converterThe distance dP T O,t between the pilot node …” „… the wavefrequency.69L_240334_BRO_FB_18-360_mP.indd 81 18.04.24 06:276 Wave energy converterEven …”

Titelei/Inhaltsverzeichnis S. I-VIII

„… of TechnologyIUT Isfahan University of TechnologyWEC Wave energy converterGFRP Glass-fiber reinforced …” „… of TechnologyIUT Isfahan University of TechnologyWEC Wave energy converterGFRP Glass-fiber reinforced …” „… design of the FWT are proposed. The second maritime example is a wave energy converter(WEC) that is used …”

Introduction S. 1-4

„… , improvements inthe design of the FWT are proposed. The second maritime example is a wave energy converter(WEC …” „… like wave energy converters or floating wind turbines under unsteady loads dueto waves and wind …” „… . These benefits can also be transferred to other floatingstructures like floating wave energy converters …”

Bibliography S. 124-138

„… . Düster, Dimensional opti-mization of a two-body wave energy converter using response surface …” „… the hydrodynamic coefficients and power ab-sorption of a two-body point absorber wave energy converter …” „… . Düster, Dimensional opti-mization of a two-body wave energy converter using response surface …”

Submersible mixer S. 71-80

„… 6 Wave energy converterEven though the WEC design presented here is only preliminary (especially …” „… tune the PTO mechanismin combination with the WEC parameters to obtain an optimal energy output.707 …”

Structural mechanics S. 5-20

„… engineering. The examples area self-aligning floating offshore wind turbine and a point wave energy converter …”

doi.org/10.51202/9783186360182

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ELIV-MarketPlace 2022

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2405 2022

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Manuel Gärtner, Nadia Lecci New STi2GaNTM technology for ultra-fast switching automotive applications S. 121-132

„… converterSiP – bidirectional 48V/12VController ProtectionDriver SiPower stage100V GaNPower stage in GaN …” „… - Bidirectional DC/DC converterSiP – bidirectional 48V/12VController ProtectionDriver SiPower stage100V GaNMain …” „… converterVolume and thermal management approachMOSFETsThermal filler isolationDiscrete Si approach with 100kHz …”

doi.org/10.51202/9783181024058

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Suppressing Electromagnetic Interference in Switching Converters by Chaotic Duty Modulation

Yuhong Song

Series: Informatik/ Kommunikation

Volume 850 2017

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Introduction S. 1-13

„… 1 Introduction 1.1 Switching Converters A power supply is the device which transforms the …” „… electrical energy between the alternative current (AC) and the direct current (DC), or changes the voltage or …” „… frequency [1]. It makes use of the rectifier or the inverter, or both. A rectifier converts AC into DC while …”

The Remaining Useful Life under Chaotic Modulation S. 72-82

„… rising result in the increase of the output voltage ripples in buck DC converter with computer simulation …” „… the remaining useful life of switching converters. Firstly, from the failure modes of the switching …” „… converter, the critical components and their failure model are obtained, which lead to the whole converter …”

Effect of Central Frequency on EMI Reduction S. 30-43

„… determined by Tn+1/N. T1 Figure 4.7: Triangle wave Essentially, the algorithm converts the discrete variable …” „… electromagnetic interference (EMI) in switching converters. Simulations and experiments are conducted to verify …” „… the idea on a DC-DC buck converter. In terms of the central frequency, whether the chaotic signal …”

System Stability under Chaotic Duty Modulation S. 57-71

„… Circuit Average Model of a Half-Bridge Converter Figure 6.2: The working waves of the symmetric …” „… 6 System Stability under Chaotic Duty Modulation 6.1 Introduction The switching converter is a …” „… ]. According to the classical control theory, the stability analysis of the switching converter is normally …”

doi.org/10.51202/9783186850102

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Schwingungen von Windenergieanlagen 2019

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2346 2019

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A. Krimmer Vermeidung von fertigungs- und konstruktionsbedingten Schäden an Rotorblättern S. 209-210

„… accumulated for wind energy converters (WEC) below 2 MW nominal power. The transition towards bidding system …” „… Toleranzen in die Strukturentwicklung zurückführen lassen. Abstract In comparison with fossil energy …” „… conversion wind energy has become a competitive energy source. Experience of up to 20 years has been …”

doi.org/10.51202/9783181023464

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Suppressing Electromagnetic Interference in Switching-Mode Power Supplies by Chaotic Carrier Frequency Modulation

Junying Niu

Series: Informatik/ Kommunikation

Volume 851 2017

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Introduction S. 1-16

„… electric energy of the power supply is transferred to the output device through the switching converter at …” „… devices, because it outputs the demanded electrical energy and affects the reliability, performance and …” „… from the supply’s input power than that working in a switching state, the input and output energy …”

doi.org/10.51202/9783186851109

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Land.Technik AgEng 2017

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2300 2017

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N. Butts, B. Schleusner, M. Bremer Material and Distribution Sensor (MADS) for Combine Material Flow – How to design and build a low-cost material sensor S. 591-598

„… a tube that conducts the sound into a MEMS microphone. The microphones convert the acoustic energy …” „… generates an acoustic wave [2]. This wave travels into a horn designed to capture and focus the sound into …” „… into electrical energy. A digital signal processor performs signal processing on the resulting …”

R. Schmetz Calculation of the losses in series-hybrid powertrains S. 513-520

„… on powertrains, as they are used in vehicles with an external energy supply (for example …” „… trolleybuses, trams, also those with inductive energy supplies, and Siemens-eHighway trucks or as range …” „… energy recovery if braking) is shown in Fig. 3. The PPU contains a rectifier, a DC-link with smoothing …”

doi.org/10.51202/9783181023006

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VDI nachrichten

Browse Volumes: VDI nachrichten

VDI nachrichten Volume 74 (2020) Issue 12 ISSN Online: 0042-1758

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Angela Schmid Wellenkraft kommt noch nicht ins Geld S. 15

„… Test: Das Duisburger Startup Nemos erprobt seit Herbst 2019 seinen „Wave Energy Converter“ (im Bild …” „… , die die Wellen zur Stromerzeugung nutzen wollen. Dazu gehört auch die irische Firma Ocean Energy, die …”

doi.org/10.51202/0042-1758-2020-12

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Dritev – Drivetrain For Vehicles 2019

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2354 2019

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V. Schroiff A modular Concept for EMI shielding of thermoplastic housings for E-Cars – An innovative approach to support weight saving and function integration S. II-161-III-VIII

„… (figure 1). By absorption, the electromagnetic wave loses energy which is converted to heat energy. The …” „… . VDI-Berichte Nr. 2354, 2019162 2 Basic Shielding Mechanism of electromagnetic Radiation Electromagnetic waves …” „… usually have electrical and magnetic field components. The waves emitted by electronic components can lead …”

doi.org/10.51202/9783181023549

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ELIV 2024

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2441 2024

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T. van Wijk Integration of chargers and the grid How to Improve the Charging Experience of Your Customers by Better Integration with the Electricity Grid S. 483-490

„… .- Use filters in AC/DC convertors tuned to the switching frequency of the converter to filter out …” „… when charging using solar energy on a partly cloudy day, or when charging at a charging hub where …” „… solar energy production. It is recommended to perform this test two times using different time lengths …”

doi.org/10.51202/9783181024416

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Dritev – Drivetrain For Vehicles 2018

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2328 2018

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L. Dedeleit, M. Ayeb, L. Brabetz Short circuit calculation of permanent magnet synchronous machines with comsol multiphysics S. II-197-III-VII

„… waves of the voltages and currents of the machine are temporally constant. The conversion from the UVW …” „… , the supply line may no longer be neglected. In order to take the converter behavior into account, a …” „… fundamental current wave, the harmonic component can be neglected in the stationary state (11), so that the …”

doi.org/10.51202/9783181023280

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International Conference on Gears 2022

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2389 2022

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R. Chen, D. Qin, C. Liu Study on electromechanical coupled dynamic characteristics of transmission system of wind turbine S. 763-778

„… ), Multi-source excitation, Variable speed and Variable load. Introduction As a kind of green, renewable energy …” „… , wind energy has the advantage of large total reserves. Countries are rapidly developing wind power …” „… magnetic field, and the wave frequencies are (h-1)fe and 2(h-1)fe. The last two parts are generated by the …”

B. Legrady, M. Taesch, G. Tschirschnitz, C. F. Mieth Prediction of churning losses in an industrial gear box with spiral bevel gears using the smoothed particle hydrodynamic method S. 651-664

„… contributors. 1. Introduction Mechanical engineering faces enormous challenges regarding energy efficiency …” „… designs already manage to convert up to 97 – 99.5 % of the generated mechanical input power to usable …” „… results in a spray-alike wave that is ejected into the gear interaction area. The oil impinges at the …”

I. Hong, Z. Teaford, A. Kahraman A comparison of gear tooth bending fatigue lives from single tooth bending and rotating gear tests S. 45-74

„… is more useful to convert STB data to an RG equivalent, a possible formulation for doing so will be …” „… at least outputting sawtooth or square wave load forms would be needed. Conversely, crack initiation …” „… ). [34] Selines, R. J., 9AD, “Effect of Cyclic Stress Wave Form on Corrosion Fatigue Crack Propagation in …”

doi.org/10.51202/9783181023891

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Commercial Vehicles 2021

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2380 2021

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D. Morgenweck, M. Großmann, W. Fakler, M. Lamke, F. Bitzer ZF E-Mobility products and software for commercial vehicles S. 1-16

„… supplied with energy from the high voltage circuit via a DCDC converter that is itself supervised by the …” „… developing energy saving strategies that are tailored to the degree of electrification. They cover aspects …” „… with functionalities like prevision, it is possible to push energy efficiency even further. The …”

doi.org/10.51202/9783181023808

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DRITEV – Drivetrain for Vehicles 2021

VDI-Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2381 2021

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D. Morgenweck, M. Großmann, W. Fakler, M. Lamke, F. Bitzer ZF E-Mobility Software Functions for Commercial Vehicles S. 703-718

„… energy from the high voltage circuit via a DCDC converter that is itself supervised by the energy …” „… developing energy saving strategies that are tailored to the degree of electrification. They cover aspects …” „… with functionalities like prevision, it is possible to push energy efficiency even further. The …”

doi.org/10.51202/9783181023815

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Partitioned Solution Strategies for Strongly-Coupled Fluid-Structure Interaction Problems in Maritime Applications

Marcel König

Series: Mechanik/Bruchmechanik

Volume 351 2018

doi.org/10.51202/9783186351180

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Improvement of Cu ( In,Ga) (S,Se)2 thin film Solar Cells with the help of Gallium and Sulfur Gradients

Björn Jakob Müller

Series: Elektronik/Mikro- und Nanotechnik

Volume 396 2018

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Fundamentals of chalcopyrite solar cell devices S. 4-31

„… linear graded absorbers. 2.2.1 Physics of single junction solar cells Solar cells convert the energy of …” „… energy bands [24]. In general, electrons 6 2 Fundamentals of chalcopyrite solar cell devices (e−) have …” „… discrete energy levels in atoms according to Bohr’s model and quantum mechanics. In a solid state many …”

Experimental procedure S. 32-50

„… phonons respectively. An incident photon with the energy ωI excites the electron system and an e−/h+ pair …” „… emission (Stokes process) and absorption (Anti-Stokes process) of one phonon respectively with the energy …” „… processes, the laws of energy and momentum conservation are valid (see equation 3.1 and 3.2). For this case …”

doi.org/10.51202/9783186396099

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