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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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Introduction S. 1-7

„… process. In contrast to this, methods of design optimization aim at finding the best design parameters in …” „… enhancement when applied early in a product design process. Topology Optimization addresses the task of …” „… of constraints. Modern product-development processes use computational design and engineering tools …”

Conclusions S. 150-154

„… for topology optimization and a developmental process that is influenced by environmental information …” „… 150 7 Conclusions 7.1 Main Results This thesis proposes topology optimization based on integration …” „… structures [182, 183]. Interestingly, also classical topology optimization algorithms show aspects of a …”

Structure Representations for Evolutionary Computation S. 29-47

„… process might prove a valuable target for EC topology optimization methods. Guirguis et al. have done a …” „… continuum topology optimization [101]. Since then, a large variety of specialized methods has been developed …” „… researchers from the EC community are often unfamiliar with the topology optimization problem. Bridging this …”

Fundamentals S. 8-28

„… structure. Sizing and shape optimization are commonly applied relatively late in the design process, when a …” „… introducing topological changes in the structural optimization process. This problem marked starting point for …” „… , engineers use topology optimization early on in the design process to produce initial, conceptual designs …”

Topology Optimization by Predicting Sensitivities S. 48-83

„… formulations need to be found externally to the optimization process. One one hand, the advantage of this …” „… expert knowledge is available. The model is generated as an intrinsic part of the optimization process …” „… by a topology optimization process that achieves a uniform distribution of the strain energy density …”

Titelei/Inhaltsverzeichnis S. I-XVIII

„… . . . . . . . . . . . . . . . . . . . . . . 62 4.7 The optimization process of updating the structure based on local state features and model …” „… process has become an important area of research. Continuum topology optimization methods determine the …” „… Reihe 20 Generic Topology Optimization Based on Local State Features Berichte aus dem Institut für …”

Topology Optimization of Crashworthiness Objectives S. 121-149

„… design process. Therefore, and due to the difficulties it poses to existing topology optimization …” „… 121 6 Topology Optimization of Crashworthiness Objectives Within the automotive industry, the task …” „… structured as follows: Section 6.1 briefly describes the approaches for crashworthiness topology optimization …”

Bibliography S. 177-202

„… . Response surface methodology: process and product optimization using designed experiments, volume 705. John …” „… solid geometry based topology optimization using evolutionary algorithm. In Bansal, J. C., Singh, P. K …” „… set method and the topological gradient in structural optimization. In IUTAM symposium on topological …”

Studies on the Minimum Compliance Problem S. 84-120

„… optimization method and presents comprehensive results. Primarily, Topology Optimization by Predicting …” „… optimization problem. From a research perspective, it serves as reference for testing novel methods. Secondly …” „… update-signal learning based on explicit evolutionary optimization. It is followed by the results of the …”

doi.org/10.51202/9783186468208

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VDI Wissensforum GmbH (Hrsg.)

SIMVEC 2022

Reihe: VDI-Berichte

Band 2407 2022

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S. Scheidel, M. Goll, M. Tandl, B. Reiter, R. Neubauer Simulationsbasierte Wirkungsgradoptimierung einer Hochtemperatur Co-Elektrolyse zur e-Fuel Produktion S. 129-142

„… ). Therefore, it is important that the optimization process can quickly react to changed boundary conditions …” „… optimization approach”. Simulation model setup To perform the optimization process, a simulation model is …” „… architecture is crucial for the optimization process as operation parameters can be varied freely instead of …”

N. Klinke, F. Schewe, B. Scholemann On the application of machine learning for the prediction of feasibility and thermal performance of cooling plates for battery electric vehicles S. 543-554

„… production of battery cooling plates. With the Mubea Rollbonding process two aluminum coils are joined …” „… plate manufacturing process, thermal performance evaluation, rating of durability and stiffness. In …” „… (RB), also known as roll cladding, is a manufacturing process where two or more metallic sheets are …”

P. Baque Neural Concept Shape: Empowering Engineering Organizations with Deep-Learning – Applications to a faster transition towards e-drive systems for Automotive OEMs and Suppliers S. 289-290

„… . It uses the following approach:  Broadening the reach of simulation and optimization-driven design …” „… . Because of their historical origin, simulation tools are not well adapted to design optimization in …” „… interactive simulation and design optimization tools in the workflow of the design engineers, instead of …”

A. Hüppe, D. Scholz, F. Menter, R. Winstanley, F. Muldoon Octree Meshing Technology for External Aerodynamic CFD Applications S. 21-32

„… settings. On the downside, this process is not easy to automate since smaller errors in the wrap can lead …” „… steps in the process are parallelized to run on CPU-cluster environments with large core counts. In the …” „… assigned to a process. To give an idea about the fundamental property of data organization, Figure 2 …”

M. Denk, J. Mayer, S. Wartzack Fully Automated Reconstruction of Topology Optimization Results with Feature Transformation and Curve Skeletonization! S. 501-512

„… , 2022510[10] Y. Xia, M. Langelaar, und M. Hendriks, „Optimization-based three-dimensional strut-and-tie model …” „… Fully Automated Reconstruction of Topology Optimization Results with Feature Transformation and …” „… verschiedensten Modellen getestet. Abstract The results of a topology optimization are often available as …”

F. Beyer, A. Schumacher, T. Pohl Neue Möglichkeiten der Graphen- und Heuristikbasierten Topologieoptimierung von 3D-Crash-Strukturen durch detaillierte Modellierung der Verbindungsknoten S. 213-224

„… processes, it is not possible to use purely mathematical methods in an opti-mization task. For this reason …” „… Graph and Heuristic based Topology optimization of 3D crash structures (GHT-3D) provides design …” „… optimization methods, which find optimized layouts. For example, the heuristic "Support Fast Deforming Edges …”

B. P. van de Weg, L. Greve, B. Rosic Surrogate modelling for finite element simulations Towards a stochastic surrogate approach S. 555-562

„… favouring weight optimization, it is shown using a structural application that an auto-adaptive recurrent …” „… optimization problems has strongly gained popularity in the automotive industry [1, 2, 3, 4]. The main reason …” „… optimization problem time consuming nonetheless. Stimulated by the architectural non-adaptability of these mean …”

F. Chinesta, R. Magg Empowering car design, maintenance and operation from advanced model order reduction and AI technologies S. 523-534

„… processes, model order reduction technologies enable the construction of parametric solutions (surrogates …” „… the form of simulation tools that represent the physics of materials, processes and structures, making …” „… , optimization, inverse analysis, uncertainty propagation, simulation-based control, ... all them under the …”

L. Stütz, T. König, M. Kley Testing of the tire modelling for a vehicle dynamics simulation on a Road-To-Rig test rig S. 185-196

„… driving scenarios, such as braking and acceleration processes, are tested under different road conditions …” „… automotive sector, caused among other things by the ongoing transformation process to battery electric …” „… is an essential part of this process to ensure that increasing requirements are met and product …”

J. Lee, S. Rehfeldt, H. Klein, D. Bäder, A. Eisenträger, J. Kuhnert, I. Michel Two-phase water evaporation MESHFREE CFD method for wet automotive component dry-out time prediction S. 33-44

„… process could be achieved. Introduction The evaporation of water is easily observed in daily life. Unlike …” „… simulations. This is due to the fact that it is a rather complex multi-physics mass-transfer process that …” „… a long period of time would initialize or accelerate the localized corrosion process [5, 6], it is …”

L. Utzig, J. Fölster, M. Frenzel Analyse und Optimierung der Drucksteifigkeit von Innenraumkomponenten bei vielen Belastungspunkten S. 315-322

„… Analysis and optimization of the compressive stiffness of interior components having many load points …” „… , hardware tests using stamps are performed within the vehicle development process. These stamps are …” „… . Finally, an optimization method is presented, which optimizes the component numerically taking the minimum …”

J. Garcke, R. Iza-Teran, M. Pathare, D. Steffes-lai, P. Schwanitz Identifying similarities and exceptions in deformations and mesh functions – Comparing many simulation results automatically S. 277-288

„… process. That is, during the virtual product development numerous design changes are applied and analysed …” „… development process. Especially in the CAE crashworthiness analysis process, the growing complexity in the …” „… representation, which allows a smooth integration in any simulation process data management tool for …”

B. Wultsch, F. Duchi, S. Puster Bridging physical and virtual calibration – Vehicle simulation on E-Drive Testbeds S. 609-618

„… need to develop new methodologies, tools and processes. The idea to frontload calibration to a virtual …” „… optimization of highly dynamic controller parameters that enable a vehicle operation on wavy or bumpy roads are …” „… only a few examples of use cases that can be frontloaded. Also, the optimization of the operating …”

P. Schwanitz, L. Greve, F. Moldering Towards AI Based REcommendations for Design Improvement (AI-B-REDI) – A joint research project of Volkswagen, Audi, Porsche, Fraunhofer SCAI, SCALE GmbH and SIDACT GmbH S. 299-314

„… 20 million finite elements, where the models are changed during the development process. Even small …” „… user interface for integration of the stand-alone tools in a fully automated process chain and thus …” „… obtained geometric features per part for all parts and time steps, an optimization algorithm within …”

R. Winstanley, D. Flad, F. Menter, A. Main, Raunak Borker, Anand Singh, R. Jia, J. Maruszewski Next Generation Ansys GPU CFD Solver Technology for External Aerodynamic Applications S. 45-62

„… a half billion grid cells will be presented. Introduction External aerodynamic optimization is …” „… reuse memory. A unified inter-process (MPI) and inter-thread communi-cation interface is used to …” „… for Process Industries, Parts A and B, Denver, Colorado, USA, Jan. 2011, pp. 429–437. doi: 10.1115 …”

doi.org/10.51202/9783181024072

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

„… Process Planning Level - Work Process Optimization Level - Work Process Stabilization Level On Work …” „… paper. On Work Process Optimization Level, the derived target values are transferred into specific …” „… execute the specif-ic actions defined on Work Process Optimization Level with sufficient accuracy …”

M. Altaleb, J. Hertzberg, H. Deeken, B. Wrenger Analysis of Combine Harvester Threshing Systems Across Different Climate Regions S. 17-24

„… optimization system. In both approaches, the combine harvester must be configured with suitable settings. It …” „… harvest process according to the changing conditions. The initial settings are derived from default …” „… contexts is required to improve both, the optimization and default initial settings. For a combine …”

L. Wannasek, D. May, D. Tyris, T. Amon Design of an on-farm biomethane upgrading plant with hybrid compression and filling station S. 259-266

„… process hybrid compression with hybrid compression (raw biogas and biomethane), allowing processing of the …” „… biogas compositions and qualities. The aim is to further optimise the series of processes, focusing on …” „… plants for biogas for internal biomethane use. There is a need for optimization due to the overlapping of …”

S. Röttgermann, G. Podann, J. IJsselmuiden, F. Tamminga, N. van de Westeringh, K. Jayaraj, D. Matos, D. Albrecht Disturbance Input Detection and Performance Monitoring for Smart Agricultural Implements S. 141-148

„… to focus on process intelligence and thus also on process monitoring and work quality assessment of …” „… an urgent need for a highly automated work process in the evaluation of the work result left on the …” „… technology for process monitoring as well as for assessing the quality of work. Especially in combination …”

C. Dittrich, R. Pecenka, C. Lühr, A. Kir, F. Righi, A.-K. Loes, U. Schmutz A. Antosik#M. Stobińska#M. Pieczykolan#P. Kamola#A. Bartkowiak Extrusion of lignocellulosic residues from agriculture and agroforestry into fibre for peat replacement and pellets for animal bedding S. 115-120

„… fibres and their quality. The energy demand for the extrusion process is a key factor for the economy of …” „… the whole fibre production process. As shown in Figure 3, with a frequency converter data is collected …” „… reasonable expenditure of energy (Fig. 5). Depending on the raw material and process parameters these fibres …”

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

„… disturbance variables of the drying process include the daytime fluctuations in temperature and humidity of …” „… fan via a frequency converter was implemented in the process control. This control concept was …” „… effect on the entire drying process. As a result of the more stable exhaust air condition over time …”

J. Schemminger, Sharvari Raut, B. Sturm, Albrecht Daniel, Thijs Defraeye A digital shadow to study the convective drying of carrot slices S. 155-164

„… Textiles, St. Gallen, Switzerland Abstract The optimization of food drying processes is strongly …” „… process has different properties: their different behaviour during the complex interactions in drying …” „… processes must be taken into account when optimizing quality preservation and energy consumption. Digital …”

B. Pölling, J. Steiner, C.-P. Stickel Development of a new structural undercarriage for combine harvesters S. 31-40

„… supports the process engineering assembly “cleaning system” including all connection points. Since its …” „… entire interior is intended for the process engineering, the undercarriage is conceptually unstable …” „… similarities with the requirements from the model series B. The performance range of the entire process …”

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

„… constituents. This cannot be inferred directly but through a function a-priori. The process of developing this …” „… addition to the spectrometer. The goal is to gain further insights into the measurement process and augment …” „… which is generated as part of NIR calibration process. Conventional NIR calibration uses standard …”

A. Hecker, B. Striller, F. Boye, Norman Franchi, H. Freytag Aspects on Applying and Operating Campus Networks in Agriculture S. 411-418

„… applications communicating which each other. As part of an FMIS study, the work processes of selected project …” „… goal is to create IT-solutions to connect field processes, machines, farm office software, controlling …” „… requirements for a communication network are outlined. Any networking solution requires operational processes …”

F. Herter, C. Schwaer Valuation Method for Corn head integrated Stubble Cracker System S. 173-178

„… standing. VDI-Berichte Nr. 2406, 2022 1732. The selection process of the technical solution With …” „… optimizations have to be done. Furthermore to compare the difference in the working result of different working …” „… without Stubble Cracker system 60 kg CO2/ha and downstream working process tractor plus implement mulcher …”

S. Germer, M. E. Adamseged, Z. Ding, T. Heinrich, T. Hoffman, R. Orozco, H. Park, P. Grundmann Grass-based circular solutions for rural agri-food value chains – Lessons learnt from GO-GRASS project S. 305-312

„… the water holding capacity and the nutrient retention of soils. The Dutch demo develops the process to …” „… components from the harvested grass. For the fibre extraction process focus lays now on optimising the …” „… components are the process of converting an agricultural crop into uniform shapes, facilitating its handling …”

A. van Dueren den Hollander Intra row weeding in sugar beets with the use of Artificial Intelligence – From theory to practice S. 267-274

„… installed on the implement. After this, several optimization steps where necessary in order to have a …” „… process is described from how to go from a theoretical idea to the implementation of AI on a customer …” „… the whole process of developing an AI model. Therefore, already in 2019, a start was made with …”

J. Henningsen, C. Schroth Challenges and potential of NIR sensors to simplify the generation of nitrogen flow balances – Digital mapping of nitrogen cycles S. 1-8

„… have to be documented and evaluated [4]. The target is to increase the optimization of the nutrient …” „… can be up to 33% These findings are relevant for the nutrient balance, because optimisation processes …” „… complexity of the topic and shows that the data quality and completeness of the documented work processes is …”

S. Kubinski, T. Meinel Methodology for the development of a plant detection system based on mechanical properties of crops using the example of corn – Contribution to the cost-effective enabling of plant-individual care mea... S. 135-140

„… . Furthermore, corn performs metabolic processes also at high ambient temperatures. [1] These properties may …” „… PUDAMA (FKZ 2818105615) and 3D-Saat (FKZ 846900). The previous projects focussed on the optimization in …” „… process in the plant´s youth state. Weed management is necessary because weeds limit the possible yield …”

Titelei/Inhaltsverzeichnis S. I-XXII

„… Assessment of Conditions in Agricultural BuildingsProcess-based modeling approaches for integral assessment …” „… | 148 mm x 210 mmAutomatic onboard process and worktype identification of agricultural machinery with …” „… ), Potsdam, Agromechatronics-Sensor-Based Process Management in Agriculture, Technical University Berlin;N …”

doi.org/10.51202/9783181024065

VDI Wissensforum GmbH - Land.Technik AgEng 2017

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VDI Wissensforum GmbH (Hrsg.)

Land.Technik AgEng 2017

Reihe: VDI-Berichte

Band 2300 2017

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L. Meyer, P. Noyer Holistic Tractor Setup and Optimization System – CLAAS Electronic Machine Optimization for the Tractor S. 185-190

„… the full working process and a link to an overall optimization goal is thus missing. Considering …” „… Holistic Tractor Setup and Optimization System CLAAS Electronic Machine Optimization for the …” „… terra mechanics and the agricultural process. However, even for experienced users it is hard to handle …”

C. Körtgen, G. Morandi, G. Jacobs, A. Kramer Efficient development by automatic calibration of tractor transmission control units S. 291-296

„… is the optimization by choosing new parameter sets. In the previous process the driving behavior is …” „… currently used manual parameterization to an automatic process. The automatic process is defined as a …” „… mathematical optimization problem and is split into three elements, the tractor behavior which represents the …”

H. Vöcking, C. Heitmann, A. Wilken Automatic Adjustments of Combine Harvesters S. 99-104

„… . The optimization needs a mathematical representation of the relevant parts of the process within the …” „… settings accordingly. However, so far the adjustment of the tangential threshing process itself is not …” „… optimal settings for a given process are wellknown and have been enhanced and adapted to the process …”

M. L. Bilde, T. T. Revsbeck Optimized material flow and cleaning capacity with new return pan system in a combine harvester S. 105-110

„… been used for all tests. Optimization of the stratification process In order to optimize the …” „… addresses the development process and final design of a new return pan system for combine harvesters. The …” „… the capacity limiting process. Opportunities for increasing the overall capacity of a cleaning …”

Titelei/Inhaltsverzeichnis S. I-XVII

„… optimization of 67 I. Shcherbatyi, potato harvesting S. Marquardt, A. Kritzner, B. Moser J. Sonnen, The …” „… framework for highly automated 157 M. Dingwerth, harvest processes enabled by environmental sensor A …” „… Tractor Setup and Optimization System – 185 P. Noyer CLAAS Electronic Machine Optimization for the …”

J. Schroeter, W. Angermair, S. Pauli Real-time View and Documentation of Manufacturer Independent Machine Data S. 149-156

„… , farmers seek easy to use documentation, process controlling, precision farming systems (prescription maps …” „… one task documentation. Additionally, there are only a few systems that can receive, process and …” „… optimization VDI-Berichte Nr. 2300, 2017150 FMIS upgrade through Machine Management functionalities …”

J. Redenius, M. Dingwerth, A. Ruckelshausen, J. Hertzberg, T. Krause, B. Kettelhoit A multilevel simulation framework for highly automated harvest processes enabled by environmental sensor systems S. 157-164

„… A multilevel simulation framework for highly automated harvest processes enabled by environmental …” „… of machines are based on the robotics simulator Gazebo. Models for powertrain, machine process …” „… environment-based functions and cooperative processes in agriculture. Due to harvesting periods, such tests are …”

W. Maaß, I. Shcherbatyi, S. Marquardt, A. Kritzner, B. Moser Real-time Smart Farming Services – Yield optimization of potato harvesting S. 67-72

„… Real-time Smart Farming Services Yield optimization of potato harvesting Prof. Wolfgang Maaß, …” „… der RWTH Aachen, Aachen Abstract Agriculture resembles general production processes in many …” „… and logistic processes increase the complexity by moving machines and moving crop. In this highly …”

W. Stark, C. Pieke Efficiency Optimization by Using “Vehicle in the Loop” Test Methodology S. 399-406

„… Efficiency Optimization by Using “Vehicle in the Loop” Test Methodology Dipl.-Ing. (FH …” „… optimization with excellent correlation to real world customer applications in an early development stage. This …” „… integration of the real vehicle components late in the development process. This typical trend always stands …”

F. Hantschack, R. Rahmfeld, J. Bagusch, A. Meyer, E. Dohm Development of a high performance continuously variable drive for mobile agricultural and construction machinery S. 315-322

„… enhancement of machine performance, optimization of system efficiency and increase of user comfort. GKN …” „… shift process. This offers on the one hand high user comfort and on the other hand advantages from the …” „… repeated shifting processes. Power-split solutions are not available at present and, in this performance …”

J. Ettl, H. Bernhardt, K. Thuneke, E. Remmele, P. Emberger, G. Huber Real driving emissions of tractors during field work and on the test stand S. 391-398

„… exhaust gas emission components are relevant, to perform optimization processes entirely. Considering …” „… works under real driving conditions. Such a method could simplify optimization processes of mobile …” „… occur shortly after the transient turning process during the insertion of the plough into the soil …”

C. Korn, T. Herlitzius Coupled CFD-DEM simulation of separation process in combine harvester cleaning devices S. 199-210

„… Coupled CFD-DEM simulation of separation process in combine harvester cleaning devices Dipl …” „… – Discrete Element Method) for the simulation of the separation process of grain and material other than …” „… , and the resulting complexity of the separation process require a strategic approach for the creation …”

G. Happich, H. J. Nissen ISOBUS Automation – On the Road to TIM – How to secure liability for open TIM systems S. 469-476

„… process optimization and/or reduction of operator fatigue in this rapidly growing system complexity …” „… and hitches. While attachments and implements bring process specific knowledge utilizing the power …” „… processes, to ensure that the industry wide liability risk for the manufacturers is reduced to an …”

J. Karner, C. Danner, A. Kerschbaumer, H. Prankl Definition of a test method to evaluate vibrations acting on a tractor driver S. 255-262

„… vibration comfort optimization, e.g. suspension setup. VDI-Berichte Nr. 2300, 2017256 Fig. 1: The …” „… basis for a standardization process. Acknowledgements The authors thank CNH Industrial, Lindner …”

F. Balbach, E. Nacke, S. Böttinger Method for load-based evaluation of machines using the example of a tractor S. 521-528

„… validation, flexible maintenance and optimization of tractor setup. 1. Introduction Tractors play an …” „… Work Processes in Modern Agriculture. Chemical Engineering Transactions 58 (2017) in print. [9 …”

doi.org/10.51202/9783181023006

VDI Wissensforum GmbH - Drivetrain for Vehicles 2017

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VDI Wissensforum GmbH (Hrsg.)

Drivetrain for Vehicles 2017

Reihe: VDI-Berichte

Band 2313 2017

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A. Reut, R. König, S. Rinderknecht Overall optimizalion of electrodynamic shifling syslems- Optimization and improvement ofthe electrical path, mechanical path and conlrol by a new development approach S. 125-126

„… to simplify the design process by using simulation and optimization models right from the beginning …” „… application process. The optimization model pursued a multi-domain approach to take into account interactions …” „… use optimization right at the beginning of the development process by a suitable simplification of the …”

A. Sturm, D. Förster, F. Küҫükay Plug-in hybrid electric vehicle powertrain dimensioning under consideration of emission reduction targets, powertrain cost and modularity S. 73-74

„… process to dimension and identify the optimal dimensioning of powertrain components. For this, a …” „… Engineering, has been extended for the optimization of powertrains. This tool enables OEMs to dimension and …” „… allows a fleet optimal dimensioning of powertrain components and can be extended for the optimization of …”

M. Falco lnfluence of electric drive systems and their control on the NVH behavior of hybrid and electric vehicles S. 141-142

„… neglected in the optimization process of the NVH behavior. Finally the electric drive also acts as …”

doi.org/10.51202/9783181023136

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