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VDI Wissensforum GmbH - Dritev – Drivetrain for Vehicles 2020

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VDI Wissensforum GmbH (Hrsg.)

Dritev – Drivetrain for Vehicles 2020

Reihe: VDI-Berichte

Band 2373 2020

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T. Korb, M. Nussbaumer, S. Rinderknecht Generic optimization environment and knowledge-based guided evolutionary algorithms for automated transmission calibration – Method to generate a knowledge base through impact analysis of parameters a... S. I-355-I-384

„… Generic optimization environment and knowledge-based guided evolutionary algorithms for automated …” „… taken as an output of this analysis. 3.1.3 Multi-criteria decision and ANN-based verification After …” „… optimization or sensitivity analysis there are three key elements needed: configuration, object, cost function …”

A. Esser, T. Eichenlaub, S. Rinderknecht Real-driving-based comparison of the eco-impact of powertrain concepts using a data-driven optimization environment S. I-309-I-342

„… optimization environment for the comparative analysis of the ecological potential of different powertrain …” „… of GHG emissions. In Section 2 of this work, the optimization framework for the comparative analysis …” „… Real-Driving-Based Comparison of the Eco-Impact of Powertrain Concepts using a Data-Driven …”

Titelei/Inhaltsverzeichnis S. I-I-I-X

„… optimization environment and knowledge-based guided evolutionary algorithms for automated transmission …” „… vehicle-gearboxes based on big-data-analysis and machine learning …” „… , Tokyo, Japan Cost efficient PHEV powertrain solution based on dedicated hybrid transmission – Cost …”

S. Rothe, B. Schröder, G. Lührs Coupled topology optimization of an electric drive S. II-75-II-88

„… taken into account and a variance-based optimization is performed resulting in a robust design. [8 …” „… optimization, based on a parametric CAD model, is used VDI-Berichte Nr. 2373, 202076 to determine the cavities …” „… .: Variance based Robust Optimization of a Permanent Magnet Synchronous Machine. IEEE Trans. Magn. 54 (2018 …”

D. Kieninger, J. Hemsen, G. Witham The highly integrated ModulED drive module – Holistic concept design S. I-27-I-44

„… selected for further analysis. Based on the gearing geometry, the gear forces and thus all shaft bearing …” „… the same direction. VDI-Berichte Nr. 2373, 202028 The inverter is based on gallium nitride (GaN …” „… based on vehicle requirements. This development approach and the resulting method will be presented in …”

M. Saborío, O. Sarmiento, C. Böhm High efficiency electric transmission oil pump – Transmission hydraulic efficiency improvement through hybridization S. I-149-I-158

„… temperature. Both effects are reflected in the volumetric efficiency. For the present analysis, an ideal pump …” „… efficiency of the components (pumps, electric motors, gear trains). The analysis showed also that the …” „… dimensioned based on hydraulic needs, and not only on the combustion engine speed. Dual Drive Pump The …”

B. Pohle, M. Clauß, J. R. Schwarz, E. Schwiederik, D. Lasuen Design optimization of battery systems by multiphysics simulation S. II-89-II-96

„… Design optimization of battery systems by multiphysics simulation B. Pohle1, D. Lasuen 2, M …” „… of the optimization takes place into the cell itself, using electrochemical simulation to define …” „… the design optimization of electrical connection inside and outside of the cell to reduce the power …”

C. Danzer, T. Voigt, A. Forell, M. Sens, E. Schreiterer, R. Kockisch, J. Müller, E. Schneider The systematic way to your sustainable powertrain platform – holistic and customizable – Systematical methods to investigate mobility scenarios of tomorrow S. I-385-I-402

„… their technical requirements and customer acceptance. Based on these mobility scenarios, IAV …” „… vehicle-specific powertrain variants form the basis for optimization on fleet level. Platform synthesis collates …” „… subjected to a fully combinational analysis. It is thus possible to assess how many powertrain types are …”

K. Kim New high efficiency CVT for middle class FWD vehicle S. I-271-I-284

„… recently developed, substantially enlarge the torque capacity based on the current Small-CVT(CF18 …” „… Packaging Condition To improve the packaging condition on vehicle, packaging analysis had been completed …” „… efficiency through optimization of capacity and minimized drive losses. The oil pump of CF28 is vane type …”

F. Völkel, M. Tietz, A. Schamin, S. Giehl Rolling into the future – Bearing solutions for electric mobility S. I-103-I-118

„… . 6: Typical damage (a-c: SCHAEFFLER damage analysis, d: [4]) The following section describes two …” „… VDI-Berichte Nr. 2373, 2020 113 achieved. Which bearing ring is to be insulated is determined based on the …” „… optimization. The integration minimizes the number of interfaces and reduces the tolerance chain, which makes …”

doi.org/10.51202/9783181023730

Markus Kellermeyer - Robust Design Optimierung endlosfaserverstärkter Verbundbauteile

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Markus Kellermeyer

Robust Design Optimierung endlosfaserverstärkter Verbundbauteile

Reihe: Konstruktionstechnik/Maschinenelemente

Band 443 2018

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Literaturverzeichnis S. 135-146

„… Rooij, R.; Schoofs, A.; Rooda, J.: Simulation based optimization of stochastic systems with integer …” „… concept for reliability-based design optimization to nonsmooth and extreme cases. Structural and …” „… 7th AIAA/USAF/NASA/ISSMO Symposium on Multidisciplinary Analysis & Optimization, AIAA, St. Louis …”

doi.org/10.51202/9783186443014

Petrissa Zell - Learning-Based Inverse Dynamics for Human Motion Analysis

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Petrissa Zell

Learning-Based Inverse Dynamics for Human Motion Analysis

Reihe: Informatik/ Kommunikation

Band 877 2022

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Introduction S. 1-14

„… recording of contact forces or tedious optimization.A computationally efficient and robust analysis of the …” „… demonstrating the diverseprospects of learning-based motion analysis. To implement this vision algorithms …” „… problems [22, 68, 82, 90, 93, 100, 149]. The remaining step to allowa fully learning-based analysis of the …”

Related work S. 15-22

„… context of human gait analysis,transfer learning based on pre-trained models is used, e. g. to support …” „… optimization are used for comparison with thelearning-based methods proposed in this work.Further related works …” „… for mobile learning-based inverse dynamics analysis. The authors propose a dependent Gaussian …”

Bibliography S. 130-152

„… , Rosa Pamies-Vila, and Javier Cuadrado. “Skeletal-level control-based forward dynamic analysis of …” „… optimization-based and other approaches.” In: Structural and Multidisciplinary Optimization42.1 (2010), pp. 1–23.[161 …” „… Marler, Jasbir S. Arora, and Karim Abdel-Malek.“Predictive dynamics: an optimization-based novel approach …”

Titelei/Inhaltsverzeichnis S. I-XIV

„… Fortschritt-Berichte VDILearning-Based Inverse Dynamics for Human MotionAnalysisPetrissa Zell, M …” „… Human Motion AnalysisZell, Petrissa, M. Sc., Hannover NR. 877Institut für …” „… Dynamics for Human Motion AnalysisFortschritt-Berichte VDI, Reihe 10, Nr. 877. Düsseldorf: VDI Verlag …”

a Appendix S. 127-129

„… optimizationIn Chapter 5, the performance of the learning-based inverse dynamics methods is comparedto a …” „… AA P P E N D I Xa.1 evaluation based on additional metricsThis appendix lists additional results …” „… measured GRF.Similar to [85], principle component analysis is used to linearize the local parameterspace at …”

Human motion dataset S. 62-75

„… motion capture and kinematic optimizationIn marker-based motion capture, retro-reflective markers are …” „… GRF.Similar to the optimization method presented above, the learning-based approachesoperate on sliding …” „… 4H U M A N M O T I O N DATA S E TA learning-based approach to inverse dynamics of human motion …”

Conclusions S. 123-126

„… locomotion aredeveloped and compared. The suitability of the presented learning-based methods forsolving the …” „… of motion. Based on the quantitativeevaluation it can be concluded that regression methods like …” „… pure motion samples by means of self-supervisedlearning with differentiable physics-based loss layers …”

Supervised learning of inverse dynamics S. 76-94

„… motionrepresents the next natural step toward a complete learning-based analysis of humanmotion. As previously …” „… used to give a first indication of the evoking impairment. The conducted analysisis only based on the …” „… representation of an input motion, as illustrated inFigure 19. In contrast to traditional model-based approaches …”

Self-supervision by dynamics-based layers S. 95-122

„… self-supervised learning for inverse dynamics of human motion. Itis based on an earlier publication from which …” „… Dynamics Network: A neural network that predictscontrol coefficients based on motion coefficients, similar …” „… to the previous end-to-end ap-proaches, is extended by two physics-based loss layers, the forward …”

doi.org/10.51202/9783186877109

Nikola Aulig - Generic Topology Optimization Based on Local State Features

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Nikola Aulig

Generic Topology Optimization Based on Local State Features

Reihe: Rechnerunterstützte Verfahren

Band 468 2017

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Topology Optimization by Predicting Sensitivities S. 48-83

„… information. The approach utilizes a density-based formulation, but avoids a direct evolutionary optimization …” „… . The learning concept is either based on evolutionary optimization, proposed in Sec. 4.3 or supervised …” „… efficiency and generality, density-based methods are one of the most commonly applied topology optimization …”

Fundamentals S. 8-28

„… Density-based Topology Optimization 19 Start: Initial Design Structural Analysis Optimization Step Update Design …” „… field, and an overview of current methods. Section 2.2 elaborates density-based topology optimization …” „… test case with examples of optimizations. In contrast to the specialized, gradient-based topology …”

Structure Representations for Evolutionary Computation S. 29-47

„… contours of a level set function. Usually, gradient-based optimization is best suited to address the large …” „… finite element analysis, this is effectively an early example for addressing a topology optimization …” „… evolutionary computation and the gradient-based topology optimization methods introduced in Chap. 2. Based on …”

Bibliography S. 177-202

„… solid geometry based topology optimization using evolutionary algorithm. In Bansal, J. C., Singh, P. K …” „… ., Jouve, F., and Toader, A.-M. Structural optimization using sensitivity analysis and a level-set method …” „… design sensitivity analysis in structural optimization. AIAA journal, 17(9):970–974, 1979. [7] Auger, A …”

Introduction S. 1-7

„… replaces experience-based engineering practices. Many engineering problems can be addressed as optimization …” „… topology optimization algorithms are so-called gradient-based algorithms. When using mathematical gradients …” „… have lead to nature-inspired topology optimization methods that are based on simple rules; for instance …”

Titelei/Inhaltsverzeichnis S. I-XVIII

„… Reihe 20 Generic Topology Optimization Based on Local State Features Berichte aus dem Institut für …” „… Automatisierungstechnik und Mechatronik der TU Darmstadt Generic Topology Optimization Based on Local State Features …” „… 2017 D17 Darmstadt 2017 Fortschritt-Berichte VDI Generic Topology Optimization Based on Local State …”

Topology Optimization of Crashworthiness Objectives S. 121-149

„… optimization can be performed based on rigorously derived sensitivities. The thickness and/or presence of the …” „… the graph based topology optimization approach. It originates from the idea of combining shape …” „… level set methods [3, 125]. The idea of a graph-based topology optimization is one of the possible …”

Conclusions S. 150-154

„… 150 7 Conclusions 7.1 Main Results This thesis proposes topology optimization based on integration …” „… these topology optimization algorithms are performed based on a mathematical perspective, instead of a …” „… implicit, or gradient-based optimization steps do not suit to improve the design, TOPS can succeed with the …”

doi.org/10.51202/9783186468208

Sebastian Recker - Systematic and Optimization-Based Synthesis and Design of Chemical Processes

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Sebastian Recker

Systematic and Optimization-Based Synthesis and Design of Chemical Processes

Reihe: Verfahrenstechnik

Band 951 2017

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Conclusions and final thoughts S. 95-98

„… methods for the optimization-based process design by means of superstructure optimization. Marquardt et al …” „… . (2008) proposed a framework for an optimization-based design of hybrid separation processes, which …” „… framework of Marquardt et al. (2008) is extended towards the optimization-based design of …”

Bibliography S. 99-114

„… simulation-based optimization, AIChE Journal 60(6), 2211–2227. Cremaschi, S. (2015): A perspective on process …” „… Näherungsverfahren, Chemie Ingenieur Technik 79(10), 1601–1612. Krämer, K. (2012): Optimization-based Synthesis of …” „… , K., Kossack, S. and Marquardt, W. (2009): Efficient optimization-based design of distillation …”

Titelei/Inhaltsverzeichnis S. I-XIV

„… computationally efficient in order to allow an optimization-based design and analysis of large-scale processes. As …” „… 3 Systematic and Optimization-Based Synthesis and Design of Chemical Processes Berichte aus der …” „… Verfahrenstechnik - Prozesstechnik RWTH Aachen University Systematic and Optimization-Based Synthesis and Design of …”

Introduction S. 1-10

„… models (ROMs)) can be trained by rigorous simulation for later use in simulation-based optimization …” „… practice. Systematic and optimization-based design approaches which facilitate the simultaneous …” „… systematic and optimization-based framework for the design of hybrid separation processes proposed by …”

A unifying framework for conceptual process design S. 11-54

„… more efficient processes has drawn attention towards the optimization-based design of …” „… gradient-based optimization algorithms in principle enable the solution of problems with thousands of equations …” „… , the VLE calculations are integrated into the equation-based optimization by means of an external …”

Systematic variant generation for catalytic processes S. 55-62

„… suitable process variants. Catalyst-based processes account for about 60% of chemicals production …” „… with the shortcut evaluation and rigorous optimization methodology presented in Chapter 2, this …” „… . Additionally, the kinetic models can be utilized for subsequent shortcut evaluation and rigorous optimization …”

Systematic design of a butadiene telomerization process S. 63-94

„… model-based experimental analysis strategy does not allow to consider reaction steps which occur outside the …” „… in Chapter 3 and the optimization-based evaluation methods presented in Chapter 2 are combined …” „… homogeneously catalyzed butadiene telomerization. The established homogenous catalyst is based 63 4 Systematic …”

doi.org/10.51202/9783186951038

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