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VDI Wissensforum GmbH - Technische Zuverlässigkeit 2021

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VDI Wissensforum GmbH (ed.)

Technische Zuverlässigkeit 2021

Series: VDI-Berichte

Volume 2377 2021

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S. Kupjetz, T. Pfeiffer, J. Holz Entwicklungsbegleitende domänenübergreifende Zuverlässigkeitsanalyse von Einzelkomponenten bis hin zum Gesamtsystem am Beispiel einer Lithium-Ionen-Batteriezelle S. 185-196

„… Abstract Using the development of a lithium-ion cell as an example, an analysis of the reliability …” „… of individual components is carried out during development. For example, the effect of newly …” „… current increased development of battery cells without the use of critical raw materials such as cobalt …”

T. Kain, A. Mehlhorn, T. Horeis, J. Heinrich, H. Tompits Ein Ansatz zur Wiederherstellung ausgefallener Hardwarekomponenten in Fail-Operational Architekturen – Eine Erweiterung von FDIRO S. 297-308

„… .: A Reliability Engineering Based Approach to Model Complex and Dynamic Autonomous Systems. In …” „… application-placement optimization. At the current stage of development, FDIRO implements a redundancy-recovery …” „… integration of the repaired hardware. 1. Introduction The development of automated and autonomous driving …”

A. Lange, K.-U. Giering, R. Jancke Wie Alterungsmodelle für integrierte Transistoren die Entwicklung zuverlässiger Systeme unterstützen S. 173-184

„… unterstützen How degradation models of integrated transistors support the development of reliable …” „… simulation methodology. It leads over to the required degradation models and discusses current solution …” „… Mechanism Based Stress Test Qualification For Integrated Circuits. Rev. H, 11.09.2014 …”

doi.org/10.51202/9783181023778

VDI - Rethinking the circular economy for plastics

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VDI (ed.)

Rethinking the circular economy for plastics

Series: Blaue Papiere

Volume 05/2023 2023

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Recommended actions S. 57-59

„… area of research and develop-ment as well, in order to develop data-based decision-making aids for …” „… based on a holistic and systemic view. They do not aim to address individual actors as a matter of …” „… action 1The paradigm shift to circular value creation, the change in business models and the …”

Field of Action 3 Creating regulatory incentives for a circular plastics economy S. 35-52

„… competitive with fossil-based virgin materials, demand will not increase to any significant ex-tent. And the …” „… models that promote recycled raw materials or even avoid waste are therefore rarely economically …” „… technology with polymer-specific analysis methods, new business models or innovative methods of mechanical …”

Introduction S. 1-7

„… linear economic model, in which consumption and production tend to conform to the short-term mindset of …” „… business models that require signifi-cantly fewer resources (e.g., remanufacturing or sharing).Circular …” „… 2022, p. 16 f.). Of the plastics produced in the EU in 2021, 88 per cent were based on fossil raw …”

Field of Action 2 Making closing the loop the task of all stakeholders S. 14-34

„… the circular economy, is the substitution of petro-leum-based virgin plastics with recyclates. This …” „… potential of the chemical industry lies in the development of technologies for the processing of plastic …” „… €2.6 billion in 2025 to €7.2 billion in 2030. Neverthe- less, further research and development work is …”

Titelei/Inhaltsverzeichnis

„… go-vernment sector. This particularly broad-based approach of the VDI Round Table was the key to a holistic …” „… Hyperspectral Cameras + Sensor-based Sorting Solutions Dr Klaus Wittstock BASF SE, Director Industry Affairs …” „… Antje Grobe from Dialog Basis for moderating the process. In the further development and preparation of …”

doi.org/10.51202/9783949971402

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Konstruktion

Browse Volumes: Konstruktion

Konstruktion Volume 71 (2019) Issue 01-02 ISSN Online: 0720-5953

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Martin Eigner, Thomas Dickopf, Hristo Apostolov Interdisziplinäre Konstruktionsmethoden und -prozesse zur Entwicklung cybertronischer Produkte – Teil 2/Interdisciplinary Design Methods and Processes to Develop Cybertronic Products – Part 2 S. 69-75

„… Sustainable Product Development Process Based on Methods of Model Based Systems Engineering. In: Fukuda et al …” „… , T.: mecPro² – A holistic concept for the model-based development of cybertronic systems. In …” „… .: Survey of Model-Based Systems Engineering (MBSE) Methodologies. INCOSE MBSE Initiative, 2008 [7] Verein …”

doi.org/10.37544/0720-5953-2019-01-02

VDI Wissensforum GmbH - International Conference on Gears 2022

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VDI Wissensforum GmbH (ed.)

International Conference on Gears 2022

Series: VDI-Berichte

Volume 2389 2022

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P. Rodel, R. Spieler, M. Indenbirken, T. Nuisl Holistic friction optimization of transmissions – a significant contribution for sustainability S. 731-744

„… analytical friction model developed by Schaeffler is based on physical principles. The single contacts are …” „… development process. These models can be used for design studies. Thus, the product performance of many …” „… final outlook handles the question, why physically based models and the holistic approach are important …”

N. Hessinger, M. Braunstingl, H. Bansal Advanced use of DOE in gear geometry optimization S. 281-286

„… based on a d-optimal design, allowing for a free polynomial order of the model with good depiction of …” „… stiffness data, which is then used to set up a contact analysis based on the Winkler mattress model, similar …” „… development process of gear geometries. Evaluation of pre-existing gear geometries has shown a high potential …”

M. Furst, J. Gotz, M. Otto, K. Stahl Automation of gearbox design S. 787-802

„… model and graph-based design languages to generate consistent, domain specific models for different …” „… Abstract In order to respond to a shortened development time of today's transmission systems, the …” „… automation of certain steps in the design process is essential for ensuring an efficient development process …”

L. Hildebrand, F. Dangl, M. Sedlmair, T. Lohner, K. Stahl CFD analysis on the oil flow of a gear stage with guide plate S. 677-694

„… lubricated spur gear stage with a guide plate. Grid-based CFD models with different simulation setups were …” „… numerical models were implemented and solved in the commercial grid-based CFD software Ansys Fluent 2020/R1 …” „… model of the considered test gearbox with guide plate (see Figure 1) was developed based on experience …”

P. Abele, J. Hermes, J. Lechner Development of a digital ecosystem for a servo planetary gear unit system to provide design automation opportunities S. 1503-1516

„… . Three-dimensional CAD model creation Motivation A key aspect of the development process in mechanical engineering is …” „… Development of a digital ecosystem for a servo planetary gear unit system to provide design …” „… been raised on how to describe a holistic model that fulfills the needs of mechanical, electrical and …”

P. H. O. Teixeira, J. Brimmers, T. Bergs Consideration of micro-interaction in the modeling of generating gear grinding processes S. 1517-1528

„… model based on penetration calculation will be developed, considering the grinding worm optical …” „… simulation based on penetration calculation Regarding aspect (2), the simulation model developed in this work …” „… , workpiece material properties deteriorate. To prevent the material deterioration, several models for …”

A. Eric, D. Olveda, T. Froschmeier, V. Schulze Local pitting fatigue concept with EHL simulation for case hardened gears in electrical drives S. 133-144

„… fatigue, there have been many attempts to develop physically based models to predict pitting failure in …” „… based on existing approaches and includes a mixed-friction EHL contact model as well as a new procedure …” „… mainly based on the work described in [13-14]. In principle, the model consists of a transient mixed EHL …”

F. Donner, T. Scheu, M. Weigand Dynamic simulation of a rotor system with variable speed S. 985-994

„… mass minima for Architecture 2. Based on these findings, a dynamic simulation model is now to be …” „… cannot be covered by varying only the turbine speed. Such new aircraft under development require a rotor …” „… Rotorcraft Developments like under the Future Vertical Lift Program in the US and RACER and NextGENCivil …”

C. Schonke, T. Magdy, K. Daubach, W. Kassem, M. Oehler, O. Koch Simulation of high torque density gearbox noise excitation S. 837-848

„… modeling of contacting surfaces. A holistic FE-based simulation approach was developed to deal with these …” „… challenges efficiently and consequently reduce development time and avoid retrofitting. Experimental …” „… as simulation input. An overview of the simulation method, the test rig, the FE-model and the …”

A. Pogačnik, U. Kissling The future of plastic gear standardization S. 1149-1160

„… plastic gears in prototype testing. The research and development in the field of plastic gears has …” „… of fiber orientation on the root stress should be evaluated, temperature calculation model could be …” „… , although it was removed in 1996, until 2014 gear designs were still based on the retracted VDI 2545. In …”

T.-T. Mac, D. Iba, Y. Matsushita, S. Mukai, T. Inoue, A. Fukushima, N. Miura, T. Iizuka, A. Masuda, I. Moriwaki Application of genetic algorithms for parameters identification in a developing smart gear system S. 239-252

„… . The model for this parameter identification process is based on two spiral antennas in which one …” „… monitoring system. Based on a derived return loss function, the GA method helps selecting the most suitable …” „… topic like based on acoustic emission, vibrational data, strain gauge, and so on, Utagawa Masahiro [1 …”

A. Zhang, J. Wei, M. Cao, B. Peng Dynamic modeling and accuracy evaluation method for complex irregular components of aviation transmission S. 573-584

„… determined based on the system excitation, and the accuracy of the condensed model within the frequency band …” „… degrees of freedom (DOFs) poses great challenges to dynamic design. Model condensation provides an …” „… example, a dynamic modeling method based on experimental modal analysis-FE method-substructure …”

N. Tros, J. Brimmers, T. Bergs Approach for multiscale modeling the thermomechanical tool load in gear hobbing S. 1489-1502

„… based on local uncut chip geometries. The result is a multiscale model for describing the …” „… specific cutting force than a negative rake angle. Based on the simulations, a regression model for the …” „… multiscale model, which allows an efficient determination of the thermomechanical load in gear hobbing. FEA …”

F. Thurner Light into the black box: using AI software to identify unknown mechanisms of action and resolve acoustic/NVH problems – practical example of a passenger car powertrain S. 779-786

„… . Parameterization and tolerancing based on the predictive models Based on the prediction models, the influence …” „… geometry characteristics were within the specifications calculated by the development department. The aim …” „… essential for the subsequent prediction models of the acoustic characteristics vs. the geometry and surface …”

P. Barreiro, S. Pfrimmer, G. Armutcu, J. Hermes Quality improvement of an aluminum gearbox housing by implementing additive manufacturing S. 1429-1446

„… . Barreiro, SEW-EURODRIVE GmbH & Co. KG, Development Gear Units, Bruchsal; S. Pfrimmer, SEW-USOCOME, Forbach …” „… hardened steel dies with the desired shape, are very high. Based on one particular gearbox housing, the …” „… objective of the present development project was to improve the quality of the gearbox housing by reducing …”

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

„…                       M C C C C K K K K K T T   ｛ [ - ] ｝， (4) Based on the mathematical model, the …” „… University, China Abstract: With the rapid development of wind power generators, the operational …” „… drive system. This study establishes a mechanical–electrical coupling model of wind turbine, which …”

D. Park, A. Rezayat, Y. Gwen Gear design optimization for multi-mesh and multi-power flow transmissions under a broad torque range incorporated with multibody simulations S. 849-862

„… aspect. Therefore, the development of a seamless gear design optimization software tool is crucial to …” „… contact model (collaborated with Catholic University Leuven and not yet commercialized) has been employed …” „… to reduce computational efforts while ensuring the accuracy is high. This gear contact model computes …”

P. Roth, M. Hein, K. Stahl Scuffing load capacity calculation of worm gears S. 811-824

„… local frictional loading due to the contact. Based on the results of this simulation, this paper derives …” „… , the objective of this paper is the development of a scuffing load capacity calculation method for worm …” „… . The simulation considers the local loads and calculates the local heat flux strain ? ?,? based on the …”

T. Konig, M. Kley, F. Wagner, M. Liebschner Enhanced damage classification on transmissions by generating synthetic data with Generative Adversarial Networks (GAN) S. 227-238

„… development phases a sufficient data generation is often not given. In the scope of this paper, Generative …” „… signals are learned by the algorithms, based on the real and existing data set, to replicate the signal …” „… the problem, especially at the beginning of development processes, that not enough data or data sets …”

Y. Koch, G. Martin, E. Kirchner, D. Quirnheim Pais, R. Slatter Feasibility study of measuring instantaneous angular speed of helical gears with magnetoresistive sensors S. 253-264

„… Several current mega-trends in engineering accelerate the development of new sensorial concepts. The …” „… be offered as VDI-Berichte Nr. 2389, 2022 253a service. Pay-per-Use business models are now appearing …” „… , such as gears, rolling bearings or ball screws. A classical model to support condition monitoring of …”

A. Beinstingel, M. Heider, B. Pinnekamp, S. Marburg Gear mesh excitation and non-uniform rational B-splines S. 91-102

„… methodology finding the most suitable geometry parameters supports the development process from the very …” „… transmission based on the Isogeometric Analysis (IGA) [4] is described in detail in [5]. This paper …” „… of freedom enabling the model to perform deformations that are more complex. Fig. 4: Exact NURBS …”

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

„… experiment when surface tension models are included. To reproduce the qualitative trends of the experiments …” „… simulation model, the churning losses of the experiment are correctly reproduced. A post-processing algorithm …” „… ) Sophisticated models and methods exist to determine load-dependent losses. In contrary, accurate prediction of …”

F. Eigner, S. Heinrich, M. Berger An approach on contact analysis for micro geometry optimization of the gear unit HypoGear S. 943-950

„… are set in rotation, in order to create a vector field of the sliding velocity. Based on a starting …” „… pattern is based on a geometric method that is used to estimate the qualitative contact area. The …” „… deviations that can be integrated into a model. Subsequent tooth flanks would not come into contact evenly …”

L. Bonaiti, F. Rosa, P. Mahendra Rao, C. Gorla, F. Concli Gear root bending strength: statistical treatment of single tooth bending fatigue tests results S. 15-30

„… coefficient ??? Root radius ???∗ Dedendum coefficient ? Standard deviation ?, ?? Fatigue model coefficients …” „… ] proposed several coefficients, based on experimental evidence: two coefficients (i.e. ? → and ? → ) to …” „… ? based on Rettig experimental evidence [21] is used VDI-Berichte Nr. 2389, 2022 17to deal with the …”

K. Stahl, T. Tobie, C. M. Illenberger Standardized methods of load capacity calculation of plastic gears S. 1173-1180

„… applications. In the past, the focus was mostly on motion transmission in actuators, but current developments …” „… historical development of gear calculation and shows com-mon calculation methods for the design of plastic …” „… gears. Finally, open points and current efforts in standardization development are presented. 2 …”

S. Bill Efficiency improvement and surface protection by using particle-based phyllosilicate-additive S. 935-942

„… Efficiency Improvement and Surface Protection by Using Particle-based Phyllosilicate-Additive …” „… Croda Int Plc and developer and manufacturer of an innovative phyllosilicate-based surface treatment …” „… and build through their adsorption a protective phyllosilicate-based coating on the surface. The …”

M. Weigand Smart and intelligent chip detectors using machine learning to monitor wear particles and dangerous degradation of critical powertrain components S. 995-998

„… motivation to push the development of a new solution and find new applications in other industrial fields. A …” „… monitoring. A new start-up, based in Vienna, was founded to market this new technology and works in close …” „… assessment by developing new damage models. The technology focuses on the monitoring of wear particles …”

A. Hessler, B. Neubauer NVH-performance versus Costs – Coherent R&D for gears, system and manufacturing S. 103-118

„… stay in a moderate development time. 4 Gear&System engineering - Interaction geometry / noise …” „… with respect to number of measured items When using mathematical models to describe the correlation …” „… gearing, bearing tolerances and carrier tolerances. Based on a previous estimation, a pre-VDI-Berichte Nr …”

B. Zhmud, M. Bengtsson, L. Everlid Improving the tribological and nhv behavior of gears by mechanochemical surface finishing S. 1365-1370

„… ., Linus Everlid, M. Sc., Development Engineer, Applied Nano Surfaces Sweden AB, Uppsala, Sweden …” „… ) Stream finishing [2]. The treatment results in the development of a progressively plateaued roughness …” „… done using a thermal elasto-hydrodynamic model [4]. Fig. 3: TCG finished gears exhibit lower …”

J. Hochrein, M. Trubswetter, M. Otto, K. Stahl Direct flank geometry calculation for face gears S. 1447-1460

„… , deviations based on the calculation are minimized. The paper compares the developed calculation method to …” „… do not require great power density or conceptual individual developments. This is related to the fact …” „… ] is such a program for involute gears. The design of face gears is based on in-house knowledge or …”

A. Wedmann, M. Stein, K. Kniel Gear calibration in tactile scanning mode on CMMs S. 1539-1552

„… series based on gear measurement standards were carried out on medium to large-sized gears. These have …” „… development in the field of coordinate measuring technology. In addition to the development of optical sensors …” „… probing. The latest probe developments on coordinate measuring machines have, however, shown that dynamic …”

P. Mahendra Rao, S. Foletti, L. Bonaiti, C. Gorla, S. Beretta, F. Concli Mode III threshold under rolling contact fatigue and development of a test gearbox for planet gears S. 499-510

„… Mode III threshold under Rolling Contact Fatigue and development of a test gearbox for planet …” „… design and development of a test gearbox for the full-scale testing of such a 3-gear train planet gears …” „… mixed approach based on both, numerical simulations and experimental tests is needed. The main goal of …”

W. Wagner, S. Schumann, B. Schlecht Enhanced loaded tooth contact analysis of hypoid gears within a multi-body-system simulation S. 357-370

„… ) are used to simulate the vibrational behaviour of integral systems. To model a flexible hypoid gear …” „… stage, methods like the modal reduction of FEM-models [1] were already introduced. However, the …” „… functionality has been described in general. During the ongoing development, several details of the loaded tooth …”

S. A. Bohme, J. Keski-Rahkonen, T. Komssi A standardizable approach to tooth flank fracture S. 371-388

„… Normung e.V., 2016.[34] F. Pascual and W. Meeker. “Analysis of fatigue data with run-outs based on a model …” „… Thomas’ hardness model and augmented by lifetime, size, and conversion factors. The arti-cle closes with …” „… factorTFF Tooth Flank Fracture ZM Midzone factorWI-BO Witzig - Boiadjiev ZS Slip factora,b Model constants α …”

A. Gebhard, W. Kassem, M. Oehler Cylinder-on-ring model wear tests as an input data source for the simulation of friction and wear of plastic gears S. 1133-1148

„… Cylinder-on-ring model wear tests as an input data source for the simulation of friction and wear …” „… injection moulded plastic gears”), a novel FEM-based multi-physical simulation procedure has been designed …” „… . Details on the development of the gear simulation are presented in [2]. Nevertheless, a brief overview of …”

Titelei/Inhaltsverzeichnis

„… 197K. Fukanoki, K. Matsuo, Hardware System Development Department, JATCO Ltd, Kanagawa, Japan;Y …” „… , JapanWear simulation of worm gears based on an energetic approach 329 …” „… Universität Kaiserslautern, Germany f Bevel and hypoid gearsDevelopment of IP-bevel gears for industrial …”

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

„… finite element based tooth root stress prediction solver as part of a gear tooth load distribution model …” „… ., 1997, “Analysis of Fatigue Data with Runouts Based on a Model with Nonconstant Standard Deviation and a …” „… failure models or extensive experimental data, else revert to overly large factors of safety producing …”

M. Zalfen, J. Lovenich, O. Malinowski, C. Brecher, J. Brimmers, S. Neus, S. Stark, D. Kruger Test rig concept for high power VHCF gear testing S. 485-498

„… turbo gearbox applications. The lack of testing concepts and models for Very High Cycle Fatigue (VHCF …” „… VHCF applications under reverse bending, the development of a high power test rig, which is able to …” „… VDI-Berichte Nr. 2389, 2022 485model and noise emissions can be reduced by 75 % due to the larger, slower fan …”

D. Drummer, D. Schubert, C. Herzog In situ measurement of geometric and structural influences on the operating properties of polymer gears S. 1099-1116

„… convolutional neural network model for gear fault diagnosis based on sound signals,“ Applied Sciences, Bd. 9, Nr …” „… . This new approach is based on very accurately measuring and tracking the timing differences in index …” „… be generated based on in situ measurements. VDI-Berichte Nr. 2389, 2022 10991. Introduction Polymer …”

R. Longato, M. Turci The effect of temperature on the SN curve for bending stress measured on a new test rig for plastic gears S. 1209-1222

„… development is still creating new materials and fillers. The applications that use these gears have increased …” „… stress values for the measured gears must be calculated based on the test torque and test gear geometry …” „… . Neither the design drawings of these gears nor any CAD models were available. Therefore, the geometry of …”

B. James Developing a digital thread linking gear design to manufacturing simulation and metrology S. 185-196

„… the development of an integrated workflow for gear engineering. Software that cover the design …” „… stress is based on the achievable root geometry, and how to minimise time, cost and VDI-Berichte Nr. 2389 …” „… substantial step in breaking down the barriers between the different disciplines and development of a …”

B. Reetz, T. Munch, W. Kappeler Challenges for lead-free brass alloys in worm gears S. 1467-1488

„… the wheel gear flanks is almost entirely sliding [8]. A simplified model (Fig. 2) can be used for …” „… : Simplified model of tooth meshing [9] For reduction of sliding friction the worm gear set is lubricated and …” „… and development of contact pattern of worm gear made of CuSn12Ni2-C-GZ depending on number of load …”

H.-J. Dennig, L. Zumofen, A. Kirchheim, S. Winterberg, D. Stierli Increasing the safety against scuffing of additive manufactured gear wheels by internal cooling channels S. 1345-1364

„… complex structures based on three-dimensional models. Laser Powder Bed Fusion (LPBF) is one of the most …” „… Applied Sciences, Centre for Product and Process Development, Winterthur, Switzerland; Daniel Stierli …” „… LPBF processing is still limited. The development of suitable LPBF metal gears (with a Gear Research …”

F. Lagier, A. Bischofberger, K. Bause, S. Ott Suitability of additive manufactured PEEK gears as a means of gear sampling for automotive high-speed gearboxes S. 1045-1060

„… Rapid Prototyping is a possibility to increase efficiency in the development process of polymer parts …” „… [20]. Espe-cially the development of automotive products profits from those benefits [21]. MWEMA ET …” „… preprocessing and tessellation of the CAD model. Additionally, pores and cracks on the surface and within the …”

A. Hilligardt, J. Klose, V. Schulze A new method for avoiding meshing interference in gear skiving S. 1305-1318

„… the tool and workpiece can occur during the process. Models exist to check for collisions of the tool …” „… shank or collisions in the tool run-out. While these models are sufficient for the process design of …” „… consuming CAD-simulation. In contrast, this paper presents an automated geometrical model for the analysis …”

doi.org/10.51202/9783181023891

Christian Redepenning - Pinch-based Methods for Absorption and Extraction Process and Solvent Screening

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Christian Redepenning

Pinch-based Methods for Absorption and Extraction Process and Solvent Screening

Series: Verfahrenstechnik

Volume 955 2018

Results in this title

Software S. 137-142

„… solution procedures to solve the pinch-based models without any a priori knowledge or the need of trial and …” „… pinch-based shortcut methods. The simple nature of pinch-based shortcut methods allows to develop tailored …” „… general, software development always played an important role in the research group at AVT– Process …”

Introduction S. 1-20

„… difficult to measure in the analyzed process. Instead, computation by model-based computer-aided design …” „… using rigorous models. In order to illustrate relevance and value of pinch-based methods to the field of …” „… equilibrium-based models. Different types of equilibrium-based models are available, which as well allow for …”

Bibliography S. 173-198

„… Engineering, 29, 1185–1202. Franceschini, G., & Macchietto, S. (2008). Model-based design of experiments for …” „… . (2010). Aggregate models based on improved group methods for simulation and optimization of distillation …” „… plant using superstructure and rate-based models. International Journal of Greenhouse Gas Control, 50 …”

Pinch-based solvent screening for absorption and extraction processes S. 90-136

„… of the pinch-based model fostered the development of problem specific solution procedures to solve a …” „… solving the complex rigorous models. The simple nature of pinch-based shortcut methods thereby reduces the …” „… pinch-based shortcut models reliably, in a fully automated manner, and without the need of manual intervention …”

doi.org/10.51202/9783186955036

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