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VDI Wissensforum GmbH - International Conference on Gears 2023

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VDI Wissensforum GmbH (ed.)

International Conference on Gears 2023

Series: VDI-Berichte

Volume 2422 2023

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M. Reichl, P. Lenz, A. Oliva Challenges and possibilities of virtual development of e-axle transmissions S. 485-498

„… parameter in SPH simulations is the particle size. By decreasing the particle size, the fluid resolution can …” „… automatically fulfilled at constant particle size. VDI-Berichte Nr. 2422, 2023 4893. FZG gearbox Setup The …” „… case-carburized steel (16MnCr5E). The particle size of the oil, as well as the air particles is 0.7 mm and the oil …”

C. Kunik, J. Kunert Wetting and oil flow analysis of planetary gearboxes using oil flow simulations S. 467-484

„… the possible computational effort. This means that the particle size must be chosen under economical …” „… of 100 cSt. On the left hand side of Fig. 15 the oil flow distribution of a small size 3-stage gear …” „… . Fig. 16 shows the oil flow distribution for small size gear unit with 3 stages (a), 2 stages (b) and …”

S. Sartori, L. Alari, N. Motta, D. Podda Helicopter Drive System Safety Dissertation S. 633-644

„… flow, calibrated chips particles (standard size particles manufactured to a 10:1 aspect ratio – squared …” „… (medium 500 m, and large 1000 m size) particles. The chip detector sensor demonstrated that its efficiency …” „… ferromagnetic particles and debris, providing relevant indication to crew and/or maintenance personnel. Such …”

A. Kubo, M. Nagae Estimation of brittleness of CCH-steel via measurement of micro-VH and simultaneous FWHM distribution S. 1699-1712

„… distributionA. Kubo, M. Nagae, RIA S Reseach Institute of A pplied Sciences, K yoto, Ja panAbstractMulti-points …” „… pathsFig. ath of measurement and a typical result of hardness distributionVDI-Berichte Nr. 2422, 2023 …” „… hardness measurement in the cross section of the tooth was carried out with hardness distribution analyze r …”

G. Guimarães, L. Robatto, R. Rego, A. Faria, A. Borille, J. Mascheroni Surface integrity of 20MnCr5 pinion gears manufactured through laser powder bed fusion S. 1845-1858

„… of mostly spherical particles with a mean size of 29.5 µm and volume-base distribution of D10 19.9 µM …” „… distribution observed in the as-built condition propagated through the entire chain. Even after three …” „… temperature distributions observed in welding application [6]. Besides its relevance, TGM is not the only …”

I. Criscuolo, F. Carneiro, G. Guimarães, R. Rego, J. Mascheroni Indirect Selective Laser Sintering: Modeling and analysis of surface densification by shot peening S. 1681-1698

„… . The first one, agglomerating particles of 20MnCr5 with average size of ~10 µm in a single …” „… at low energies promotes the bonding of the metallic particles by the solidified liquid phase …” „… characteristics of the coated powder. To improve the consolidation of the powder particles and produce parts with …”

M. Gebhardt, A. Rhode, B. Legrady Lubrication improvement at the HS-IS spline shaft interface of a wind turbine gearbox using the smooth particle hydrodynamic method S. 519-536

„… smooth particle hydrodynamic method Spline design optimization using an advanced numerical method Dr.-Ing …” „… design. This aim is supported by using the smooth particle hydrodynamic (SPH) method. A sample geometry …” „… . Considering the size of the components, these tests are expensive, have a long lead time and geometric …”

L. Klee, T. Bergs, M. Solf, J. Brimmers Binder Jetting in Gears – Process Design and Tooth Bending Strength for Gears made of 17-4PH S. 1665-1680

„… different local density distribution in the component and the potential integration of secondary design …” „… batch sizes in series production. For small batches, AM offers an approach to manufacture gears that …” „… advantages of PM gears are the different local density distribution in the component and the potential …”

F. Concli, M. N. Mastrone Latest advancements in the lubrication simulations of geared systems: a technology ready for industrial applications S. 499-518

„… not provide any information about the lubricant distribution and are not suitable to take into account …” „… , 2023 503Fig. 1: LRA: 2 subsequent meshes - the grids differ significantly in terms of element size The …” „… low-quality elements. While the domain to be re-meshed results higher, the better control over the mesh size …”

Titelei/Inhaltsverzeichnis

„… | 15:31:04 | 148 mm x 210 mm Planetary gears: Load distributionParametric system simulation of load sharing …” „… improvement at the HS-IS spline shaft interface of a wind turbine gearbox using the smooth particle …” „… Niš, SerbiaGear geometry, size and material influences not captured in ISO 6336 1267W. Smet, ZF Wind …”

doi.org/10.51202/9783181024225

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Gefahrstoffe

Browse Volumes: Gefahrstoffe

GrdL Volume 83 (2023) Issue 09-10 ISSN Online: 0949-8036

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Oswald Rottmann, Jürgen Fingerle, Wolfgang Herrmann, Gerhard Müller-Starck, Reinhard Kendlbacher Covid –19 restrictions expose air traffic at the Munich Airport as hotspot of ultrafine particle pollution – implications for regional air quality/Covid-19 Restriktionen entlarven den Flugverkehr am Flughafen München als größte Quelle der Ultrafeinstaubbelastung – Implikationen für die regionale Luftqualität S. 209-217

„… also provide UFP distribution patterns. In case of aircraft derived UFP the typical particle size is …” „… ., Kot-thaus S., Grimmond S.: Interpretation of particle number size distribu-tions measured across an urban …” „… par-ticle size increases which is based on the fact that aircrafts emit only smallest UFP which intermix …”

Julia Linke, Dietmar Breuer Validierung und Vergleich einer gas- und flüssigchromatographischen Methode zur Messung schwerflüchtiger PAK/Validation and comparison of a gas- and liquid chromatographic method for the analaysis of non-volatile PAHs S. 218-228

„… hydrocarbons: size distribution, estimation of their risk and their depositions to the human respiratory tract …” „… associated to airborne particle-phase polycyclic aromatic hydrocarbons: A source apportionment. Atmos …”

doi.org/10.37544/0949-8036-2023-09-10

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Gefahrstoffe

Browse Volumes: Gefahrstoffe

GrdL Volume 83 (2023) Issue 07-08 ISSN Online: 0949-8036

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Carsten Möhlmann, Sébastien Bau, Bianca Gasse, Raphaël Payet, Olivier Witschger, Sabyne Audignon, Louis Galey Real-Time Measurement of Personal Exposure to Airborne Nano-Objects with the DiSCminiPart 2 – Application Examples of the DiSCmini/Echtzeitmessung der persönlichen Exposition gegenüber luftgetragenen Nano-Objekten mit dem DiSCminiTeil 2 – Anwendungsbeispiele S. 143-148

„… . The particle size distribution is given in Figure 5. A constant increase of particles towards small …” „… (epoxy resin with nano sized SiO2). Source: IFAFigure 5 Particle size distribution during sanding of …” „… personal exposure to ultrafine particles and nano-objects in the size range below approxi mately 700 nm …”

doi.org/10.37544/0949-8036-2023-07-08

VDI Wissensforum GmbH - 28. Deutscher Flammentag

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VDI Wissensforum GmbH (ed.)

28. Deutscher Flammentag

Series: VDI-Berichte

Volume 2302 2017

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H. Mätzing, H.-J. Gehrmann, H. Seifert, D. Stapf, R. Keune Modelling Biomass and Solid Recovered Fuel Combustion on Reciprocating Grates with CFD-application S. 143-150

„… iv e pr ob ab ili ty [w t-% ] particle size [mm] MSW size distribution Fig. 5: MSW size …” „… size distribution 50 100 150 200 250 300 0.1 0.5 2 10 30 50 70 90 98 99.5 99.99 99.9999 cu m ul at …” „… .-% ash and 27 wt.-% moisture. Due to the large particle size, the high moisture fraction and the low …”

B. Peters, M. Mohseni Modeling the combustion of pellet with Extended Discrete Element Method S. 121-130

„… Press, 2010. [7] M. Mohseni, B. Peters, Effects of particle size distribution on drying …” „… the temperature distribution of particles and gas phase at 300s. The colorful region represents the …” „… Method (DEM) in which the thermodynamics state of each particle is included. In other words, the …”

S. J. Baik, B. Rogg Full PDF-Modelling and Parallel Simulation of Liquid- Fuelled Turbulent Spray Flames S. 469-478

„… Monte-Carlo particles along the symmetry line of the jet. because the initial droplet size distribution …” „… Abstract A fully stochastic approach to the formulation and solution of Lagrangian-type particle …” „… temperature for each phase, K mass fractions for the gasphase and droplet size for the liquid phase as random …”

C. Chi, G. Janiga, K. Zähringer, D. Thévenin Indirekte Messung der Wärmefreisetzung in Wasserstoffflammen mittels Spezieskorrelationen S. 625-636

„… with length of 1.5 cm on each side, and discretized with uniform mesh grid size of 18.75 μm. This …” „… . 1(b)) are obtained by thresholding the normalized heat release distribution and the normalized …” „… reconstruction distribution at half-peak value. To get the difference between the two images, the objective …”

doi.org/10.51202/9783181023020

Sascha Steyer - Grid-Based Object Tracking

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Sascha Steyer

Grid-Based Object Tracking

Series: Mess-, Steuerungs- und Regelungstechnik

Volume 1272 2021

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Object State Estimation S. 101-126

„… cells C+ τ,t ⊇ Cτ,t, still extracted by evaluating the particle label distributions but without …” „… distribution estimation and the maximum filtered velocity of the track. Finally, a specific object track size …” „… corresponding bin i. The individual interval size δi can be adapted over time based on the current distribution …”

Conclusion S. 165-168

„… Mapping and Particle Tracking: A novel evidential dynamic grid mapping strategy has been proposed that …” „… combines the benefits of a persistent grid map accumulation with a short-term particle filter tracking of …” „… occupancy of the grid map is thereby directly coupled with the particle tracking, overall resulting in a …”

Evaluation S. 127-164

„… measurement grid. (e) Labeled particle population. (f) Associated grid cells and measurement boxes. (g …” „… low-level particle tracking thereby further enables a robust cell-wise velocity estimation. The augmented …” „… measurement data to tracked object instances is thereby achieved using the particle labeling association …”

Titelei/Inhaltsverzeichnis

„… . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 3 Dynamic Grid Mapping and Particle Tracking 39 3.1 Introduction …” „… Contribution and Outline . . . . . . . . . . . . . . . . . . . . . . . 42 3.2 Dynamic Grid Map and Particle …” „… Particle Representation . . . . . . . . . . . . . . . . . . . 47 3.3 Particle-Based Prediction of the …”

Dynamic Grid Mapping and Particle Tracking S. 39-78

„… distribution of new particles, pure static particles with zero-velocity are sampled that improve the …” „… grid cell with cell size dc = 0.15m). by the mean particle velocity of all particles in a cell …” „… distribution and thus keep the particle-based cell velocity estimate νc t of the dynamic hypothesis and the …”

Introduction S. 1-12

„… Kalman filter (UKF) [55], or the particle filter [33] are used for almost all applications as robust …” „… grids are based on a grid-based particle filtering concept that enables a generic estimation of moving …” „… parts by continuous velocity distributions of each grid cell, e.g., [29, 83, 85, 121]. Overall, this …”

doi.org/10.51202/9783186272089

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