VDI Verlag eLibrary

Learning-Based Inverse Dynamics for Human Motion Analysis

Petrissa Zell

Series: Informatik/ Kommunikation

Volume 877 2022

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Supervised learning of inverse dynamics S. 76-94

„… information). These parameter vectors77supervised learning of inverse dynamicsFigure 19: Illustration of the …” „… inverse dynamicsThus, components with generally small absolute values are relevant as well. The rRMSE …” „… ) 16.7 (4.2) 16.5 (4.0)87supervised learning of inverse dynamicsTable 7: Gait phase classification …”

Introduction S. 1-14

„… inverse dynamicsIn the research of neurological disorders inverse dynamics plays an important role …” „… more detail inChapter 4.1.2 learning inverse dynamicsAlthough the described methods for dynamics …” „… non-invasive way, butcan be estimated through inverse dynamics analysis.1.1 applications and challenges of …”

Titelei/Inhaltsverzeichnis S. I-XIV

„… 10INFORMATIK/KOMMUNIKATIONZellLearning-Based Inverse DynamicsREIHE 10 | NR. 877ISBN …” „… Fortschritt-Berichte VDILearning-Based Inverse Dynamics for Human MotionAnalysisPetrissa Zell, M …” „… . Pons-MollProf. Dr.-Ing. J. OstermannTag der Promotion: 15. Dezember 2021Learning-Based Inverse Dynamics for …”

Related work S. 15-22

„… , ground penetration, dynamic balance, etc..2.2 learning-based inverse dynamicsIn the previous section …” „… can be designed by implementing subsequent inverse and forward dynamics.The idea, which is also …” „… 2R E L AT E D WO R KThis chapter addresses the current state of the art regarding inverse dynamics …”

Conclusions S. 123-126

„… learning of inverse dynamicsIn human locomotion, alternating ground contact results in non-continuous GRF/M …” „… 7C O N C L U S I O N SIn this work, machine learning models for inverse dynamics of human …” „… per frame).In developing appropriate regression methods for the inverse dynamics problem, dealingwith …”

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

„… and the inverse loss is done103self-supervision by dynamics-based layersalternatingly. The L1 loss of …” „… self-supervised learning for inverse dynamics of human motion. Itis based on an earlier publication from which …” „… factorfor the application of machine learning models in inverse dynamics of human motion.Suitable sets …”

Bibliography S. 130-152

„… . “Semiparametric Deep Learning Manipulator Inverse DynamicsModeling Method for Smart City and Industrial …” „… INFORMATIK/KOMMUNIKATIONBAND 1|1VOLUME 1|1NR. 877REIHE 10INFORMATIK/KOMMUNIKATIONZellLearning-Based Inverse DynamicsREIHE 10 …” „… . Kistemaker. “Inverse dynamics ofmechanical multibody systems: An improved algorithm that ensures …”

a Appendix S. 127-129

„… self-supervised approaches F-net and cFI-net, also the unlabeled datasets.a.2 data-driven inverse dynamics …” „… optimizationIn Chapter 5, the performance of the learning-based inverse dynamics methods is comparedto a …” „… 0.599(0.219)0.096(0.042)0.125(0.033)0.91(0.08)0.77(0.13)0.82(0.08)128A.2 data-driven inverse dynamics optimizationthe number of optimization variables is drastically …”

Fundamentals S. 23-61

„… based on the observed motion.These two procedures are termed forward and inverse dynamics, respectively …” „… introduces algo-rithms used to realize learning-based inverse dynamics estimation. Following the …” „… , detR = 1}. (6)The dynamics considered in this work take place in three dimensional space, so thatR ∈ SO …”

Human motion dataset S. 62-75

„… 4H U M A N M O T I O N DATA S E TA learning-based approach to inverse dynamics of human motion …” „… segments.4.3 estimation of inertial propertiesTo describe the dynamics of the rigid body system, inertial …” „… heuristically set. The approach is referred to aspredictive dynamics optimization (PDO) in reference to the …”

doi.org/10.51202/9783186877109

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Fast Calculation of Thermophysical Properties in Extensive Process Simulations with the Spline-Based Table Look-Up Method (SBTL)

Matthias Kunick

Series: Energietechnik

Volume 618 2018

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Titelei/Inhaltsverzeichnis S. I-XIV

„… – Computational Fluid Dynamics – Heat-Cycle Simulations – Transient Processes The presented Spline-Based Table …” „… computationally extensive process simulations, such as Computational Fluid Dynamics (CFD), heat-cycle calculations …” „… computational speed. SBTL property functions, their first derivatives, and inverse functions are continuous and …”

Application of the SBTL Method in Computationally Expensive Process Simulations S. 107-113

„… Computational Fluid Dynamics To consider the real-fluid behavior of water and steam in Computational Fluid …” „… Dynamics (CFD), SBTL property functions of (v,u) based on IAPWS-IF97 (see Sec. 5.1) have been implemented …” „… consistency of the SBTL property functions with their inverse functions, the computation is very stable using …”

Introduction S. 1-3

„… 1 1 Introduction Extensive numerical process simulations, such as Computational Fluid Dynamics …” „… , and so-called “backward equations” for calculating inverse property functions without time-consuming …” „… . In these situations, inverse property functions should be calculated by iteration from the basic …”

Summary and Outlook S. 114-117

„… Dynamics (CFD), power-plant design with heat cycle calculations, and real-time process optimizations. In …” „… fast calculation of numerically consistent inverse functions. Therefore, quadratic and biquadratic …” „… SBTL functions of (v,u) based on IAPWS-IF97, numerically consistent inverse functions of (p,v) and …”

doi.org/10.51202/9783186618061

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Bewegungstechnik 2016

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2286 2016

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M. Lorenz, T. Haschke, M. Hüsing, B. Corves Entwicklung eines Parallelmanipulators mit redundantem Antriebskonzept zur Untersuchung neuartiger Konfigurationsplanungs- und Bewegungsstrategien S. 107-118

„… , J. and Corves, B. and Wahle, M.: A Comparative Study of Inverse Dynamics based on Clavel’s Delta …” „… inversen kinematischen Problems aufweisen [7]. Aus diesem Grund können im Fall der Antriebsredundanz …” „… RA-PKM beschrieben. Anschließend wird in Kapitel 3 das inverse kinematische Problem für einen -PRPaR (mit …”

doi.org/10.51202/9783181022863

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Baudynamik 2022

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2379 2022

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A. Firus, R. Kemmler, G. Lombaert, J. Schneider, H. Berthold Ein Ansatz im Zeitbereich zur Rekonstruktion von bewegten dynamischen Fahrzeuglasten auf Eisenbahnbrücken S. 95-108

„… erfasst werden. In diesem Sinne stellt dieser Beitrag eine neuartige Formulierung eines inversen Problems …” „… inverse Problem wird im Zeitbereich unter Verwendung von Beschleunigungs- und/oder …” „… , dass viele aktuelle MFI-Zeitbereichsmethoden die Lösung eines inversen Problems implizie-ren, was in …”

T. Heiland, A. Stark, H. D. B. Aji, F. Wuttke Einfluss der Boden-Bauwerk-Interaktion auf die dynamische Charakteristik von Eisenbahnrahmenbrücken S. 597-610

„… ]. Nichtharmonische Erregungen werden über die Fast-Fourier-Transformation (FFT) und anschließender inversen …” „… mithilfe des ABAQUS steady-state dy-namics solver im Frequenzbereich gelöst. Lösungen im Zeitbereich erhält …” „… man durch Anwen-dung der FFT und der inversen-FFT [10]. Der betrachtete Impuls aus Kap. 3.2 wird über …”

doi.org/10.51202/9783181023792

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wt Werkstattstechnik online

Browse Volumes: wt Werkstattstechnik online

wt Volume 106 (2016) Issue 09 ISSN Online: 1436-4980

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P. Tempel, A. Pott Parallele Seilroboter in Theorie und Praxis/Cable-Driven Parallel Robots in Theory and Practice - The potential of lightweight construction, energy efficiency and high dynamics, with elasticity as a key challenge S. 643-647

„… move over large workspaces under high dynamics and thus be used for tasks beyond the scope of …” „… theory and practice. Understanding the predominant influence of the cables‘ dynamics on the movement of …” „… lightweight construction, energy efficiency and high dynamics, with elasticity as a key challenge 1 …”

doi.org/10.37544/1436-4980-2016-09

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Systematic Derivation of Objective Requirements on Vehicle Steering System

Martin Ralf Münster

Series: Verkehrstechnik/Fahrzeugtechnik

Volume 819 2023

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Substructuring the Vehicle Steering S. 13-34

„… stiffnesses of the ball joints and tie rods havea low impact on the global system dynamics up to 30 Hz …” „… tires with their own dynamics are preferably included.However, the tires could be alternatively …” „… basic dynamics are investigatedmore detailed.2.2 Basic Theory of SubstructuringThe theory of …”

Deriving Requirements on Subsystem Level S. 35-62

„… measurementsor calculations. For better understanding the physical meaning of these subsystem dynamics,mobility …” „… the subsystem dynamicsAij2 of the steering is not feasible unless the dynamic properties Aij1 of the …” „… .3.3.2 Derivation of Necessary and Sufficient Limits to Subsystem DynamicsThe derivation of requirements …”

Appendix 1 S. 205-224

„… parameters used as exemplary configuration of the simplified front-axle modelincluding tire dynamics.Vertical …” „… ]. (A.10)Hence, the inverse transfer matrix B defines the relation of the outputs and the inputs of …” „… 11 , (A.15)where alternatively the mobility matrix can be obtained from the inverse of the …”

Bibliography S. 195-204

„… : Primal and Dual Assembly of Dynamic Models”. In: Substructuringin Engineering Dynamics: Emerging …” „… . “On The Origins and Development of Mobility andImpedance Methods in Structural Dynamics”. In: Journal …” „… Development”. In: Chassis Handbook - Fundamentals,Driving Dynamics, Components, Mechatronics, Perspectives. Ed …”

doi.org/10.51202/9783186819123

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Schwingungsanalyse & Identifikation 2016

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2259 2016

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D. Ginsberg, C.-P. Fritzen Sensorreduziertes Impulslastüberwachungsverfahren basierend auf dem Basis-Pursuit- Denoising-Algorithmus S. 49-60

„… rekonstruieren. Somit ist Impulsidentifikation ein inverses Problem, da die Systemausgänge bzw. die Messwerte und …” „… gestellte inverse Problem in eine dünnbesetzte Rekonstruktionsaufgabe zu transformieren. Die dünnbesetzte …” „… structure. Impact identification refers to the inverse problem of estimating an input to a dynamic system …”

M. Böswald, M. Höser, Y. Govers Aufbau globaler Dämpfungsmatrizen aus modalen Dämpfungsmaßen von Substrukturtests S. 163-178

„… . Literatur [1] Clough, R.W., Penzien, J.: Dynamics of Structures, Second Edition, McGraw Hill, 1993 [2 …” „… by inverse statistical analysis, Dissertation Universität Kassel, erschienen als DLR …” „… Structural Dynamics, IFASD 2005, Munich, 2005 VDI-Berichte Nr. 2259, 2016 177 …”

doi.org/10.51202/9783181022597

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Berücksichtigung biomechanischer Zusammenhänge in der nutzergruppenspezifischen virtuellen Produktentwicklung

Jörg Miehling

Series: Konstruktionstechnik/Maschinenelemente

Volume 445 2018

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Titelei/Inhaltsverzeichnis S. I-XII

„… kinetischen Kopplung von Nutzer- und Produktmodell ......... 86 3.6.1 Inverse Dynamik unter statischer …” „… ..................................................... 102 5.2.1.2 Inverse Kinematik …” „… 5.3.1.2 Inverse Kinematik …”

Stand der Technik und Wissenschaft S. 7-51

„… (NVH) oder auch Computational Fluid Dynamics (CFD) zur Eigenschaftsabsicherung in den frühen Phasen …” „… gewünschter Ergebnisse unterschiedliche Berechnungsmethoden. Hierzu zählen beispielsweise die Inverse …” „… Kinematik (IK) oder auch die Inverse Dynamik (ID). Der Großteil der Berechnungsmethoden hat ihren Ursprung …”

doi.org/10.51202/9783186445018

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LAND.TECHNIK 2022

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2395 2022

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C. Schoerghuber, M. Ortner, M. Resel, R. Schantl, S. Puster Analysis of the tractor behavior on a powertrain test bed for tractor-specific maneuvers S. 521-528

„… dynamics and includes also suspension and tire models. The tire models for front and rear wheels are …” „… , while the inverse CVT gear ratio is reduced towards zero. When the tractor has reached zero velocity …” „… inverse CVT gear ratio is increased back to the starting value. In figure 3 the representative time-based …”

doi.org/10.51202/9783181023952

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Dritev – Drivetrain For Vehicles 2018

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2328 2018

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J.-E. Moseberg, J. Kohlhoff, S. Hekeler Electric all-wheel drive: enhancing vehicle dynamics and driving safety by wheel-individual torque distribution – How to make use of the over-actuation of electrified vehicles S. II-103-II-116

„… Electric all-wheel drive: enhancing vehicle dynamics and driving safety by wheel-individual torque …” „… vehicle dynamics as well as driving safety. First, a desired vehicle behavior is realized which the …” „… well as an increasing driving safety at the same time. Generally, the vehicle’s horizontal dynamics …”

T. Gemassmer Approaches to increase efficiency and dynamics of ipmsm traction drives by optimization of control strategies S. II-85-II-102

„… Approaches to increase Efficiency and Dynamics of IPMSM Traction Drives by Optimization of Control …” „… magnet traction drives to increase both efficiency and dynamics. Starting with a short derivation of …” „… saturation characteristics of highly utilized drives and their impact on the dynamics of the current control …”

doi.org/10.51202/9783181023280

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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

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Titelei/Inhaltsverzeichnis S. I-XVI

„… Basis Function Interpolation . . . . . . . . . . . . . . . . . . 66 4.5.4 Inverse Distance Weighting …” „… for Economic Affairs and Energy) CFD Computational fluid dynamics COG Center of gravity CPU Central …” „… Composition of the transformations Φ and Ψ Φ−1 Inverse of the transformation Φ δu Variation of u Δu Increment …”

Bibliography S. 252-266

„… introduction to physically based modeling: Rigid body simulation I – Unconstrained rigid body dynamics …” „… . Carnegie Mellon University, Pittsburgh, PA, 1997. [7] M. S. Bartlett. “An inverse matrix adjustment arising …” „… . Blazek. Computational fluid dynamics: principles and applications. Amsterdam, Netherlands et al …”

Fluid Problems S. 5-24

„… methods in computational fluid dynamics. Since the Navier-Stokes equations are expensive to solve …” „… . Regarding Ψ , it makes sense to consider only its inverse Ψ−1, which will be useful to find an expression …” „… and the referential time derivative. With the inverse transformation Ψ−1 introduced in (2.4), the …”

Software Library comana S. 98-157

„… various open source and commercial solvers for fluid dynamics, structural mechanics and thermodynamics …” „… Fluid dynamics FVM C++ MSC Marc [117] Commercial Structural mechanics FEM Fortran oct6dof In-house Rigid …” „… body dynamics – MATLAB/Octave OpenFOAM [123] Open source Fluid mechanics FVM C++ panMARE [12] In-house …”

doi.org/10.51202/9783186351180

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Reifen – Fahrwerk – Fahrbahn

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2425 2023

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N. Büteröwe, G. Müller, S. Müller, H. Ulmer, S. Reetz Road-Tire Friction Potential Estimation for Heavy-Duty Vehicles S. 197-208

„… , considering the road surface, tire type, and vehicle dynamics of the given vehicle. The overarching goal is to …” „… inverse distance weighting (IDW), which is a geostatistical interpolation technique that does not rely on …” „… map can be used to predictively adapt ADAS or automated driving dynamics to the current friction …”

doi.org/10.51202/9783181024256

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Commercial Vehicles 2023

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2417 2023

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N. Büteröwe, G. Müller, S. Müller, H. Ulmer, S. Reetz Road-Tire Friction Potential Estimation for Heavy-Duty Vehicles S. 217-228

„… , tire type, and vehicle dy-namics of the given vehicle. The overarching goal is to develop a procedure …” „… the inverse dis-tance weighting (IDW), which is a geostatistical interpolation technique that does not …” „… map can be used to predictively adapt ADAS or automated driving dynamics to the current friction …”

doi.org/10.51202/9783181024171

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Model-Based Control of a Turbocharged Diesel Engine with High- and Low-Pressure Exhaust Gas

Matthias Patrick Alexander Mrosek

Series: Verkehrstechnik/Fahrzeugtechnik

Volume 803 2017

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Air Path Control Design and Dynamical Reference Value Generation S. 102-167

„… operable and a further inverse filtering can partly compensate actuator dynamics. First the limitation with …” „… generation for the LP-EGR control with consideration of the gas propagation dynamics. This chapter closes …” „… inverse control of the stationary turbocharger power balance with nonlinear PID-controllers to control the …”

Semi-Physical Mean Value Engine Model S. 12-33

„… one-dimensional models or even three-dimensional models with computational fluid dynamics (Merker et al., 2006 …” „… dynamics can be modelled as a plug flow via a pipe receiver model (Benz, 2010), see Fig. 3.2. Dependent on …” „… gas density p;st. For the receiver dynamics, temperature and pressure in every storage element are …”

doi.org/10.51202/9783186803122

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Backprojection Autofocus of Large Ships with Arbitrary Motion for Synthetic Aperture Radar

Aron Sommer

Series: Informatik/ Kommunikation

Volume 867 2020

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Bibliography S. 119-128

„… . “Application of Fast Backprojection Techniques for some Inverse Problems of Integral Geometry.” Dissertations …” „… . Doerry. “What Maritime ISAR Designers should know about Ship Dynamics.” In: Proc. SPIE Radar Sensor …” „… Exploration – Theory and Numerical Analysis of a Linear Inverse Problem” | Advisor: Prof. Dr. Andreas …”

doi.org/10.51202/9783186867100

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