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VDI Wissensforum GmbH - International Conference on Gears 2023

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VDI Wissensforum GmbH (Hrsg.)

International Conference on Gears 2023

Reihe: VDI-Berichte

Band 2422 2023

Treffer in den folgenden Teilen:

J. Hongu, S. Hattori, J. Kato, T. Koide Gear friction coefficient estimation using directional parameter under ATF lubricated condition S. 753-762

„… Gear friction coefficient estimation using directional parameter under ATF lubricated condition …” „… .: Estimation of gear friction coefficient using directional parameter of tooth surface. Journal of Tribology …” „… introducing the directivity of machining marks on the tooth surfaces (directional parameter), and it was …”

L. Bonaiti, M. Monti, C. Gorla, M. Geitner, T. Tobie, K. Stahl The consequences of different methodologies for the elaboration of pulsator test results with respect to the load spectrum assessment of gears S. 33-52

„… ISO 6336. The second one is based on the experimental curve estimation by the Maximum Likelihood …” „… , the Random Fatigue Limit model proposed by Pascual and Meeker [21] and the three-parameters Weibull …” „… 2. Those models have been selected because of the relatively low number of required parameters (i.e …”

E. Grabovic, A. Artoni, M. Gabiccini, E. Ciulli Exploration of trade-offs between NVH and efficiency in bevel gear design S. 853-880

„… . estimation of the elasto-hydrodynamic lubrication (EHL) friction coefficient; Numerous models and methods …” „… subsequent estimation of the friction coefficient. Moreover, most of the cited references do not offer …” „… precise estimations of the lubricant’s entraining velocity, often relying instead on calculating it as the …”

M. Ruzek, R. Brun, F. Ville, P. Velex, Y. Marchesse On the reduction of windage power losses in gears by the modification of tooth geometry S. 785-800

„… loss estimation (Figure 3) whose operating principles and methodology are described in [12]. No torque …” „… parameter equals 1 at the first grid points away from all the walls whatever the rotational speed (for …” „… of parameter defined as the length between points B and D: 0; 0.25; 0.50; 1.00; 2.00 mm. The case …”

S. Ebrahimi, U. Kissling, C. S. Matkovič Evaluation of the NVH Characteristics of Gear Drives with Plastic Gears by the Forced Response Analysis S. 1403-1418

„… parameters. The work of Martin et al. [13] investigated the effect of gearbox parameters on the noise of …” „… gears and one with steel gears, are considered. Both variants have the same input parameters (load …” „… Gear parameters Gear pair 1 Gear pair 2 Gear 1 Gear 2 Gear 3 Gear 4 Teeth number z [-] 17 56 15 56 Face …”

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

„… additional influencing parameters such the radial wall distance and the volumes of the housing. Even if the …” „… consider some important parameters such as, for example, the normal backlash and the helix angle. Similar …” „… ] proposed equations for the squeezing losses. Diab et al. [26] derived an empirical model for the estimation …”

P. E. Schnetzer, J. Pellkofer, K. Stahl Calculation method for wear of steel-bronze rolling-sliding contacts relating to worm gears S. 907-926

„… parameter 𝑇 K Test temperature a N/ m °C Lubricant parameter 𝑇 K Bulk temperature b - Lubricant parameter …” „… t s Running time b 1/°C Lubricant parameter U - Velocity parameter D mm Diameter of curvature v m/s …” „… N Normal-load W - Load parameter G - Material parameter W - Pressure factor h μm Minimum film …”

C. Dongu Im, W.-J. Chung, J.-H. Park, D.-J. Moon, Pfor. Y.-J. Park The effect of working surface deviation on transmission error in helical gears S. 1125-1134

„… 𝐹 Tip form 𝐹 Effective parameter of pinion 𝐹 Effective parameter of wheel 2. Measurements of gear …” „… through analytical techniques requires precise estimation of transmission error in gear meshing frequency …”

C. Herzog, D. Drummer Influence of the injection molding process on the tooth deflection of plastic gears during operation S. 1435-1448

„… main processing parameters are shown in table 2. The material has been dried at 80 °C for 4 h before …” „… processing. VDI-Berichte Nr. 2422, 20231438Table 2: Processing parameters for the polyamide (PA66) gears …” „… Processing Parameter Parameter setting Screw diameter 18 mm Mass temperature 290 °C Mold temperature 60 °C …”

O. Harris, C. Poyser, R. Patel, O. Shires Developing CAE solutions for Robotics gears: Cycloidal and Strain Wave Gear Drives S. 1111-1124

„… , this is shown in Fig. 2. The cycloidal design parameters used for the example are as detailed in the …” „… are unaffected by the output holes, in this model using a rigid disc body.A key performance parameter …” „… angles to allow an estimation of the TE from the authors’ model. For the FE solution, components in the …”

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

„… of process parameters. Subsequently, the gears are tested with regard to the tooth bending strength …” „… further increased by specific adjustment of the Binder Jetting process parameters. Both endurance and …” „… (stainless steel X2CrNiMo17-12-2). In this case, the development of the process parameter is not part of this …”

D. Zorko, N. Vukašinović, B. Černe The effect of gear manufacturing quality on the mechanical and thermal state of a plastic gear S. 1319-1332

„… . The deviation of geometrical quality parameters, i.e. lead profile and pitch were found to have a …” „… parameters, as well as the gear design, need to be properly addressed, in order to achieve a satisfactory …” „… effects of processing parameters [7] and tool design on the geometric quality of injection molded gears …”

Titelei/Inhaltsverzeichnis

„… Industries (CETIM), Senlis, FranceForward Performance-driven Design of Gear Parameters 211S. Chen, C. Liu, D …” „… | 15:31:04 | 148 mm x 210 mm Efficiency and frictionGear friction coefficient estimation using directional …” „… parameter under ATF lubricated condition 753J. Hongu, S. Hattori, J. Kato, T. Koide, Tottori University …”

B. van Wissen, L. Pastukhov, F. Mitsuzuka, K. Iwanaga, A. Hasanovic NVH performance of thermoplastic gears: modelling and measuring S. 1389-1402

„… including first order estimations of predicted NVH behavior 2. Background If we focus only on the noise …” „… clearance is available. bi , , i 1,2 and other parameters are the base radius, torque, rotational inertia …” „… visualization of the gear harmonics and an estimation of the contribution of the gear harmonics to the overall …”

M. Rothemund, M. Otto, K. Stahl Applicability of classic analytical calculation approaches for the design of plastic gears S. 1483-1498

„… , and the wheel is made from plastic. The main material parameters used for the calculations are shown …” „… calculation, the parameters are taken VDI-Berichte Nr. 2422, 20231486dynamically from stress-strain curves …” „… gearing parameters. The normal module varies between 1 mm and 3 mm, exceeding that of typical plastic …”

M. Geitner, S. Preintner, T. Tobie, K. Stahl Simulation Study on the Tribological Characteristics in the Meshing Contact in the Context of the Load Carrying Capacity Calculation of Internal Gears with Unbalanced Sliding Conditions S. 429-450

„… kg/m³).VDI-Berichte Nr. 2422, 2023 431Table 1: Gear data of the investigated internal gears Parameter Unit Reference …” „… within the active profile are illustrated by the specific sliding , a dimensionless parameter, which is …” „… active profile due to its significant influence on the investigated parameters. 2.3 Defined Operating …”

A. Beinstingel, F. Haringer, W. Sigmund, M. Heider, B. Pinnekamp, S. Marburg Investigation of Sound and Vibration Behavior of Cylindrical Gears S. 599-618

„… BEM solution and then serves as the evaluation parameter for the case study. Finally, conclusions and …” „… over completely different gear design concepts as it predicts quantitative parameters instead of …” „… detection of important influencing factors in combination with parameter studies. Moreover, the conducted …”

I. Atanasovska, D. Momcilovic Analysis of new tooth profile design based on the biomimetics principles S. 945-956

„… tooth root strength analysis, the estimations are based on the Theory of Critical Distances and stress …” „… of the parameters of involute tooth profiles [12-13]. In recent years, authors also recommended new …” „… general methodology for optimization of geometric parameters in transition zones based on the Finite …”

G. Vasileiou, C. Vakouftsis, C. Kalligeros, V. Spitas, C. Papalexis, A. Tsolakis, P. Zalimidis Continuous prestressed reinforcement of plastic gear teeth and its effect on bending strength vs conventional reinforcement S. 1375-1388

„… estimation of bending stresses has been the subject of substantial theoretical and experimental investigation …” „… expected. Further study is still required to include more gear design parameters (i.e. pressure angle …”

doi.org/10.51202/9783181024225

VDI Wissensforum GmbH - International Conference on Gears 2017

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VDI Wissensforum GmbH (Hrsg.)

International Conference on Gears 2017

Reihe: VDI-Berichte

Band 2294 2017

Treffer in den folgenden Teilen:

H. B. Endeshaw, S. Ekwaro-Osire, F. M. Alemayehu, J. P. Dias Estimation of remaining useful life of gears with uncertainties in loading and material parameters S. 1063-1072

„… for the estimation RUL of gears with uncertainties in loading and material parameters. The dynamic …” „… Estimation of Remaining Useful Life of Gears with Uncertainties in Loading and Material …” „… Parameters Mr. H. B. Endeshaw, Prof. S. Ekwaro-Osire, Dr. J. P. Dias, Department of Mechanical …”

A. von Freyberg, A. Fischer Automatic geometry segmentation of involute flank regions S. 1015-1024

„… objects. For a robust estimation of the unknown geometric gear parameters, these different regions of an …” „… segmented based on the nominal gear data [11]. For a robust estimation of unknown geometric gear parameters …” „… automated estimation of unknown gear parameters, an algorithm was implemented, based on the planar holistic …”

T. Nagumo, M. Ishizuka, Y. Satou, S. Matsumura, H. Houjoh Estimation of loaded static transmission error using vibration measurement under operating conditions in a two-stage helical gear reducer S. 857-868

„… Estimation of loaded static transmission error using vibration measurement under operating …” „… Technology, Yokohama, Japan Abstract In this study, an estimation method of the loaded static …” „… surface deviation of the helical gear pair during operation, the estimation was performed based on the …”

P. Garambois, E. Rigaud, J. Perret-Liaudet Robust optimization of gear macro and micro-geometries in order to minimize static transmission error and gear stiffness fluctuations S. 927-938

„… method for the multi-objective optimization of gear macro and microgeometry parameters in order to …” „… macro and micro-level geometry parameters. The method is performed by a genetic algorithm. Static …” „… model allows a fast and efficient estimation of the periodic STE(t) and km(t) fluctuations over the …”

J. Cathelin, R. Janssen Material data for advanced plastic gear simulation S. 1553-1564

„… involve the estimation of gear temperature under load and the tooth root load carrying capacity, based on …” „… analytical equations. The VDI 2736 proposes three extra sizing parameters: the maximum deformation of the …” „… on Figure 2, relies on all of the parameters proposed by the VDI2736, with the exception of teeth …”

C. Andersson Grinding or shaving? – Performance based economic decision support in the manufacturing of gears S. 1353-1364

„… estimations and calculations to fit into the parameter setup in Equation 1. The fact that a hob tool is …” „… manufacturing. In the study different cost models are compared regarding input parameters in alignment with the …” „… different performance parameters on costs were analysed by scenario simulations. 1. Introduction …”

B. Schlecht, K. Neikes, E. Leidich, S. Hauschild Is the mean stress effect for shafts dependent on the geometry, material or load? S. 1145-1152

„… is reduced, which was already published by Wöhler [1]. Since then a lot of estimations how to …” „… . Most of these estimations are based on results for alternating loads at zero mean stress and tensile …” „… stress gradient ′ are the main parameters to describe the local stress state. The examined loads were …”

T. Utakapan, B. Kohn, M. Fromberger, M. Otto, K. Stahl Evaluation of gear noise behaviour with application force level S. 695-706

„… the definition of the investigated area. In Fig. 1 the area is described by 3 parameters, the speed …” „… stiffness. The estimation of gear noise behaviour with application force levels with these basic …” „… excitations is called the estimation according to method C (LA,F,C). In many cases, dynamic influences of …”

C. Brecher, C. Löpenhaus, J. Pollaschek Influence of surface layer properties on tooth root bending strength of cylindrical gears S. 421-432

„… small module helical gear and a parameter study proves the effectiveness of the Inclusion-Based Weakest …” „… calculated bending strength. In addition, the main influence parameters on the model and material properties …” „… and caused by the necessity to ensure that the estimation used in the standard will not lead to a …”

M. Hein, T. Tobie, K. Stahl Test method for time-scaled fatigue tests of gear transmission systems S. 1073-1084

„… well as statistical analysis. With both methods, an estimation of the remaining service life of …” „… necessary to use one defined parameter to describe the load level. As the gearbox input torque relates to …” „… the load and stress parameters for the regarded damage mechanisms, it is a proper criterion for a …”

P. Tenberge, D. Kupka, T. Panéro Influential criteria on the optimization of a gearbox, with application to an automatic transmission S. 253-266

„… , Bochum Abstract In the design of an automatic transmission gearbox, the variation of one parameter …” „… aforementioned parameters on the optimization of a reducer. To validate our analysis, a 6AT gearbox concept from …” „… the maximum transmittable one. This approach is of course just a rough estimation that consists …”

Titelei/Inhaltsverzeichnis

„… parameters on 435 L. Yao, characteristics of the nutation drive with double Z. Xie, circular arc spiral …” „… . Nagumo, Estimation of loaded static transmission error using 857 M. Ishizuka, vibration measurement …” „… of power losses in 905 S. Rinderknecht, transmission with parameter identification M. Hoppert B …”

M. Oehler, B. Magyar, B. Sauer A new standardizable calculation method to predict the efficiency of worm gear drives S. 363-372

„… of boundary friction is required. The parameters of a simplified equation for the estimation of this …” „… different gear sizes and ratios. An extensive parameter study with the use of this simulation program was …” „… parameter field for this study was created with design of experiments (DoE) to take into account a wide …”

C. Gorla, E. Conrado, F. Rosa, F. Concli Austempered Ductile Iron (ADI) for gears: manufacturing, performances and tests S. 977-988

„… represents an obstacle for the design of gears made of ADI. In order to obtain a reliable estimation of the …” „… unavoidable consequence that the rated performances would be only a rough estimation of the real ones. The …” „… materials [4-6], it can be stated that the fatigue strength of gears is influenced by many parameters that …”

N. Sagraloff, M. Hein, T. Tobie, K. Stahl Practical use of micropitting test results according to FVA 54/7 for calculation of micropitting load capacity acc. to ISO/TR 15144-1 S. 143-152

„… parameters for micropitting tests according to FVA 54/7 and using the obtained results for calculation of …” „… reliable results for the safety factor, particular attention has to be paid to the used test parameters in …” „… the lubricant test. This paper gives a detailed guideline on setting these parameters right …”

T. Schöler, H. Binz, M. Bachmann Method for the pre-dimensioning of beveloid gears – Efficient design of main gearing data S. 565-578

„… , 2017566 The conical flank shape of beveloid gears results in changing tooth parameters along the face …” „… estimation criterion for untempered gears and common tooth numbers is the flank load capacity. This is also …” „… factor Kγ can also be included in KH. An important dimensioning parameter is the desired b/d1-ratio. It …”

F. Concli, C. Gorla Numerical modeling of the churning power losses of gears: an innovative 3D computational tool suitable for planetary gearbox simulation S. 881-892

„… fitted by interference in the planet carrier and the counter plate. The main geometrical parameters of …” „… the gearbox (in two configurations) are listed in Table. Table 1: Main geometrical parameters …” „… estimation of the power dissipation, because they neglect secondary sources of loss such as those on the …”

C. Hasl, P. Oster, T. Tobie, K. Stahl Bending strength of oil-lubricated cylindrical plastic gears – Modified bending strength calculation based on VDI 2736 S. 1649-1660

„… (3) Furthermore, the calculation of the mesh stiffness is an input parameter for the iterative …” „… the data for PA66 is taken from Hachmann/Strickle [11], the most elementary gear geometry parameters …” „… gear geometry underlying the POM fatigue strength data according to [1]. Fig. 1: Estimation of the …”

J. J. Liou, S. Rakuff The development of worm drives S. 503-516

„… drives [37] Integrated contact analysis for load capacity estimation: In steel-bronze worm drives, the …” „… parameter of condition in machinery (vibration, temperature, particulates, etc.) in order to identify a …” „… ] DIN 3975 Definitions and Parameters on Cylindrical Worm Gear Pairs with Rectangular Crossing Shafts …”

D. Iba, S. Futagawa, T. Kamimoto, M. Nakamura, N. Miura, T. Iizuka, A. Masuda, A. Sone, I. Moriwaki Print of crack detection sensor for spur gears by laser sintering of conductive ink S. 869-880

„… conductive circuit on PA66 gears. 1. Introduction Japanese Industrial Standard (JIS) B 1759 “Estimation …” „… of plastic gears. Parameters Values Module (mm) 1.0 Pres. angle (deg) 20 Number of teeth 48 …” „… 1759:2013: Estimation of tooth bending strength of cylindrical plastic gears, (2016) 1-41. [2] Dempsey, P …”

W. Wang, L. Han, Q. Yan, C. Xiang, Y. Li Research on the dynamic power split characteristics and the electric power coordinated control for a hybrid transmission system S. 131-142

„… relation and the system parameters. But in the actual driving condition the dynamic response and the …” „… base of the scheme selecting, parameter matching and the power distribution and optimization. For …” „… equipments power Motor A power battery actual power Electric power demand estimation driving power demand …”

B. Kianian, C. Andersson Sustainability-conscious Powder Metallurgy gear manufacturing – An analysis of current manufacturing challenges S. 1251-1264

„… manufacture in order to provide knowledge on what parameters need to be considered when modelling the cost …” „… PM, but the set up parameters and controlling methods need to be optimized. These types of …” „… ’ cost estimation. There is a lack of a fact based generic cost model, which can be used by any company …”

M. Nakagawa, D. Nishida, D. Sah, T. Hirogaki Development of novel test stand for three-axis driving planetary gear train control and analysis of novel PGT for noise reduction S. 331-340

„… values. This proves that the experimental estimation method was correct and the results are sufficiently …” „… design parameter or the number of teeth Zp, as shown in the figure. In this study, it could be cut by …” „… lumped-parameter and finite element models, Journal of sound and vibration 332 (2013), pp.2350-2375. [10 …”

E. Rigaud, P.-H. Cornuault, B. Bazin, E. Grandais-Menant Prediction of the vibroacoustic response of an electric window-lift gear motor S. 635-648

„… inertia elements. Parameters of the finite element model have been adjusted for each of the sub-assemblies …” „… each degree of freedom of the housing. It allows estimation of the acoustic power Π radiated from the …”

doi.org/10.51202/9783181022948

VDI Wissensforum GmbH - AgEng LAND.TECHNIK 2022

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VDI Wissensforum GmbH (Hrsg.)

AgEng LAND.TECHNIK 2022

Reihe: VDI-Berichte

Band 2406 2022

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S. Hempel, L. Ouatahar, D. Janke, T. Amon A nested semi-mechanistic model to predict the temporal dynamics of ammonia emissions from a solid floor naturally ventilated dairy cattle building – Parameter estimation and associated uncertainties S. 197-202

„… floor naturally ventilated dairy cattle building Parameter estimation and associated uncertainties Dr …” „… and Bioeconomy (ATB), Potsdam Abstract The estimation of emission rates from naturally ventilated …” „… seasonal and diurnal variability. We present here a set of approaches for the estimation of the crucial …”

M. A. Moreno-Teruel, F. D. Molina-Aiz, D. L. Valera-Martinez, A. Lopez-Martinez, F. Baptista Numerical and Experimental Analysis of the Stomatal Resistance of a Tomato Crop in Almería (Spain) S. 439-446

„… east sector, making a total of 270 measurements. From the climatic parameters measured inside the …” „… measured by a parameter called stomatal resistance, but there are currently not too many models available …” „… for this parameter for crop inside greenhouses [2] and expensive sensors are required for direct …”

A. Panambilly, P. Schade Smart Constituent Sensing using HarvestLabTM 3000 – An innovative NIR based Constituent Sensing solution S. 335-342

„… , Kaiserslautern Abstract Constituent Sensing refers to technologies used to determine quality parameters of …” „… Deep Learning with Uncertainty Estimation Classical constituent sensing involves predicting …” „… continuous numbers to indicate various quality parameter. This is facilitated by the machine learning model …”

D. Tyris, P. Panagakis, D. Manolakos, A. Gkountas, P. Bakalis A dynamic heat pump model for precise environment control of a broiler house in Northern Greece S. 485-492

„… Greece. The estimation of thermal loads took into consideration the geographical location of the facility …” „… indoor conditions, as these are determined by the optimal growth curves of broilers. The estimation of …” „… the heat exchange mechanisms for the building were considered. The estimation of total energy …”

E. Thiessen, M. Eslamifar, R. Kock, E. Hartung, P. Lausen On Farm Validation of different NIR Sensors for Manure Sensing S. 9-16

„… predicting parameters like DM, total N, NH4-N, P and K and were calibrated by the manufactures. But how do …” „… used with the actual calibrations provided by the manufactures for the particular parameters like total …” „… : Properties of the used sensors device sampling intervall parameters NIRS1 1 s N, NH4, P, K, DM NIRS2 1 s N …”

A. Barbaresi, M. Ceccarelli, M. Bovo, M. Agrusti, E. Santolini, D. Torreggiani, P. Tassinari, G. Menichetti Machine Learning Models for Predictions of Thermal Energy Need in Farm Buildings S. 477-484

„… cross-validation was used to prevent over-fitting optimizing the hyper-parameters VDI-Berichte Nr. 2406, 2022 479 …” „… hyper-parameters [13]. The outer cross-validation was based on 3-fold and the inner cross-validation on 5-fold …” „… provide a feature importance estimation to improve model interpretability and validation. A Python library …”

J. Mellmann, T. Ziegler, T. Teodorov, T. Hoffmann, R. Joachim, B. Sturm Homogenization of belt drying of hops by controlling the supply air humidity using partial air recirculation S. 211-216

„… dryers require 18-26 liters of fuel oil to preserve 50 kg of hop cones (dry goods). By estimation, this …” „… of process parameters and bulk properties on quality of dried hops. Processes 8 (2020) 11, 1-23 …”

M. Schmidt AI-Based Tillage Job Quality Assessment for Advanced Machine Automation in Agriculture S. 567-572

„… actions. E.g., the operator adjusts machine parameters such as working depth based on the visual …” „… Machine Control Based on a Vision System for Soil Roughness and Soil Cover Estimation. Computer Vision …”

C. Stumpe, S. Böttinger Grassland yield prediction and mapping in small-scaled regions S. 149-154

„… on the knowledge and experience of farmers or their estimations instead of sensor-based measurements …” „… mower can be calculated. The measurement data can be logged together with all machine parameters of the …”

N. Katsoulas, M. Aslanidou, A. Elvanidi, A. Mourantian, E. Levizo, V. Vassiliadis, E. Mente Simulation of Ca2+ and K+ concentrations in the nutrient solution of an aquaponic system S. 469-476

„… values during the experimental period illustrating the main parameters concerning the water and nutrient …” „… ] Montanhini Neto, R., & Ostrensky, A. (2015). Nutrient load estimation in the waste of Nile tilapia …”

L. Poppa, L. Frerichs, J. Liu, M. Böl Experimental method to analyse the blackspot bruises of potato tuber flesh due to mechanical deformation S. 429-438

„… discolouration and load parameters can be found for the different tissues and storage conditions. 1 …” „… under controlled ambient conditions. Unfortunately, the lack of information on local stress estimation …”

Titelei/Inhaltsverzeichnis

„… building – Parameter estimation and associated uncertainties …”

doi.org/10.51202/9783181024065

Maxim Stuckert - Theory and Application of the Lang-Gilles Observer for Distillation Processes

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Maxim Stuckert

Theory and Application of the Lang-Gilles Observer for Distillation Processes

Reihe: Mess-, Steuerungs- und Regelungstechnik

Band 1253 2016

Treffer in den folgenden Teilen:

Efficiency estimation in distillation columns S. 82-96

„… process by a Luenberger observer. The second level consists of an estimation of the fault parameters by a …” „… in Section 4.2 follows that idea to combine the state and parameter estimation into a two-level …” „… Murphree e ciency parameters. Then we discuss the new estimation algorithm rst proposed by Stuckert et al …”

Introduction S. 1-7

„… separation e ciency parameter Cl, we are interested in a simple on-line method for estimation of the …” „… . With this in mind, we will propose a method that combines a parameter estimation method with state …” „… alternate state and parameter estimation steps. The states are estimated by the Lang-Gilles observer and the …”

Titelei/Inhaltsverzeichnis

„… observer parameters. We also give a method for the on-line estimation of the Murphree tray efficiency …” „… . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 4.2 Sequential state and parameter estimation . . . . . . . . . . . . . . . . . . 87 4.2.1 …” „… measurements in each section of a distillation column and only few observer parameters need to be tuned. We …”

Summary and conclusions S. 119-122

„… estimation and needs to be analyzed. In addition, we need to learn whether the lumped parameter describing e …” „… uence of the parameter estimation on convergence is studied. In a third step, the previous steps should …” „… . Along with modeling, control and state estimation have attracted much interest. In the modern chemical …”

Analysis of the Lang-Gilles observer S. 52-81

„… quality. Consequently, a number of nonlinear state estimation schemes were proposed and some of them were …” „… references concerned with nonlinear state estimation in distillation columns. To start with, the well-known …” „… also incorporates state and parameter ranges in form of bounds. However, the authors do not give the …”

Bibliography S. 144-157

„… parameter estimation in a continuous polymerization process. Industrial & Engineering Chemistry Research …” „… . Álvarez and C. Fernández. Geometric estimation of nonlinear process systems. Journal of Process Control …” „… , R. L. Jones, and J. M. Prausnitz. Group-contribution estimation of activity coe cients in nonideal …”

Application of the Lang-Gilles observer in distillation control S. 97-118

„… state observer for estimation of the vapor ow rate and the position of the temperature front in a …” „… two extended Luenberger observers (full- and reduced-order) for composition estimation in order to …” „… been published. The observer is reported to be robust towards modeling errors, wrong parameters or …”

Dynamic distillation modeling S. 8-51

„… physically meaningful parameters and a superior simulation accuracy. Besides, rst principle models usually …” „… , (2.13) Λk,m = νLk νLm exp−λk,m − λk,k R Tj , (2.14) where the parameters νLk and λk,m must be …” „… Antoine/Wilson parameters of an ACBT mixture as mostly used in this work the reader is referred to Appendix C.1 …”

doi.org/10.51202/9783186253088

Holger Meuel - Analysis of Affine Motion Compensated Prediction and its Application in Aerial Video Coding

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Holger Meuel

Analysis of Affine Motion Compensated Prediction and its Application in Aerial Video Coding

Reihe: Informatik/ Kommunikation

Band 865 2019

Treffer in den folgenden Teilen:

Rate-Distortion Theory for Affine Motion Compensation in Video Coding S. 37-64

„… by an independent error term e i j , caused by inaccurate parameter estimation. Consequently, the …” „… parameter estimation errors, the transformation theorem for pdfs is used ([99, 93]): pY 1 , . . . ,YM(y1 …” „… (Equation (3.20)) for encoding the prediction error as a function of the estimation parameter variances σ 2e …”

ROI-based System for Low Bit Rate Coding of Aerial Videos S. 65-86

„… Motion-compensated frame ŝ image sequence Motion estimation from parameters Global motion Coding block generation …” „… and radial distortion estimation Since in surveillance scenarios the camera as well as its parameters …” „… estimation of several homographies and one common radial distortion parameter κ1 to be applicable. For …”

Titelei/Inhaltsverzeichnis

„… motion parameter estimation, the minimum bit rate for encoding the prediction error is derived. Similarly …” „… error caused by inaccurate a ne motion parameter estimation, the minimum required bit rate for encoding …” „… 1Mbit/s. To prevent discontinuities introduced by inaccurate global motion estimation—as may be …”

Summary and Conclusions S. 117-132

„… Gaussian assumption, the a ne transform parameter estimation errors are entirely characterized by their …” „… variances. From the joint probability density function of these parameter estimation errors, the pdf of the …” „… parameter estimation errors. By combining the Fourier transform of the pdf of the displacement estimation …”

Introduction S. 1-10

„… distortion parameters from frame to frame negatively in uence the global motion estimation accuracy, it is …” „… Motion estimation prediction Intra-pic. T control Coder coding Entropy -1 T video signal Output video …” „… Input comp. Motion estimation Intra-pic. selection Intra/inter form coe cients Quantized transbitstream …”

Basics S. 11-36

„… detection Correspondence analysisz −1 re nement Parameter parameter estimation Outlier removal & Motion …” „… involved in the transformation parameter estimation from step two above. Each mapping located outside a …” „… Section 2.3. Motion estimation from image sequences is explained in Section 2.4, covering feature …”

Experiments S. 87-116

„… distortion parameter κ1 is iteratively estimated within the motion estimation process for each group of …” „… caused by inaccurate motion estimation as modeled in Chapter 3 is simulated and the prediction error bit …” „… prediction error was calculated as a function of the motion estimation accuracy. ¿e latter was characterized …”

Bibliography S. 133-152

„… ] A. Shastry and R. Schowengerdt. Airborne Video Registration and Tra c- Flow Parameter Estimation …” „… of Global Motion Parameter Accuracies on the E ciency of Video Coding. In Proceedings of the IEEE …” „… cient Four-Parameter A ne Motion Model for Video Coding. IEEE Transactions on Circuits and Systems for …”

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