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GJAE - German Journal of Agricultural Economics

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GJAE - German Journal of Agricultural Economics

Browse Volumes: GJAE - German Journal of Agricultural Economics

GJAE Volume 70 (2021) Issue 03 ISSN Online: 2191-4028

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Martin Banse, Florian Freund, Inna Geibel The Impact of Dietary Changes on Agriculture, Trade, Environment and Health: A Literature Review S. 139-164

„… greenhouse gas emission are eliminated. This rebound-effect is particularly high for low-income consumers …” „… gas emissions and improve health outcomes while less attention has been attracted on studies …” „… agricultural markets, greenhouse gas emissions, food security and health. In addition, available studies on …”

Uwe Latacz-Lohmann, Gunnar Breustedt, Insa Thiermann Verringerung von Ammoniakemissionen durch Gülleansäuerung auf dem Feld: Teilnahmebereitschaft von Landwirten an Förderprogrammen / Abating Ammonia Emissions through Slurry Acidification during Spreading: Farmers’ Willingness to Participate in a Support Scheme S. 192-207

„… Feld: Teilnahmebereitschaft von Landwirten an Förderprogrammen Abating Ammonia Emissions through …” „… spreading. Slurry acidification is a novel technique to reduce ammonia emissions, which has been pioneered …” „… emission reduction as well as a relief from, and a tightening of, the German Fertilizer Ordinance. The …”

doi.org/10.51202/2191-4028-2021-03

VDI Wissensforum GmbH - LAND.TECHNIK AgEng 2019

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VDI Wissensforum GmbH (ed.)

LAND.TECHNIK AgEng 2019

Series: VDI-Berichte

Volume 2361 2019

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D. Peitsmeyer Hydraulics in electrified machines – Electrification needs high efficiency S. 145-152

„… hydraulics. In this context, a novel, highly efficient and low-noise hydraulic pump is a key component for …” „… power is distributed as required. This means that the installed power can be lower than the sum of all …” „… wide operating field and consequently low power dissipation. Today's hydraulic pumps have lower …”

M. Mattetti, G. Molari, S. Fiorati, N. Lenzini Idling of agricultural tractors S. 311-318

„… , health of people due to the fact that fuel is wasted and emissions are produced in vain. Idling is a …” „… , engines of tractors are significantly improved toward a better fuel consumption and emissions. However …” „… public health because fuel is wasted, and emissions are produced in vain. Idling causes a serious …”

C. Weltzien, R. R. Shamshiri SunBot: Autonomous Nursing Assistant for Emission-Free Berry Production, General Concepts and Framework S. 463-470

„… SunBot: Autonomous Nursing Assistant for Emission-Free Berry Production, General Concepts and …” „… of SunBot is to develop technologies for autonomous and emission-free mowing operations in orchards …” „… technical innovation emission-free shrub berry production: SUN stands for the coupling of electric drive …”

L. Levato, C. De Marco, P. Tamamidis, G. Monacelli, S. Panunzio Development of a compact After-Treatment System for agricultural tractors S. 295-304

„… to decrease the level of emissions. To achieve this result, systems known as exhaust After- Treatment …” „… emission requirements, those volumes have been increased up to a level where the installation is not …” „… exhaust gases coming from the combustion chamber before their emissions in the environment to decrease …”

M. Hinrichs, P. Pickel, R. Isermann Model-Based Chiptuning Detection of Diesel Engines S. 1-8

„… in order to comply with current emission limits. However, in the agricultural sector it is not …” „… excess air of diesel engines. As a result, the emitted emissions deteriorate considerably since the …” „… leased vehicles. Some customers lease an underpowered, low-priced machine and tune it to the required …”

D. Engelmann, S. Becker, R. Stirnimann Transferring agricultural machines from field to the laboratory for emission check S. 479-488

„… same for all considered emissions. They are all on the same scale and quite low. No major deviation …” „… Transferring agricultural machines from field to the laboratory for emission check Prof …” „… requirements is e.g. the emission standards. Emission standards for agricultural tractor were introduced for …”

A. M. Moanţă, C. Bartolein, T. Riedel, S. Estel, C. Federle Generation of Digital Terrain Models from GNSS Data – Correction signal and working width-based evaluation S. 471-478

„… Factors like population growth, changes in alimentary habits or stricter emission legislation and limited …” „… density along the machine’s trajectory and a low point density between tracks. For the four datasets …” „… overcome. Lower accuracy correction signals such as SF3 can be successfully used for generating DTMs when …”

S. Pfaffmann, F. de Moraes Boos, N. Tarasinski, V. Kegel Swarm Unit – Development of a Fully Electric Agricultural Machine with External Power Supply S. 401-408

„… & Co. KG, Kaiserslautern Abstract The pursuit of resource-saving, low-emission agriculture, the …” „… , a local emission-free battery electric tractor with the full functionality of a standard machine …” „… , local pollutants- and noise emissions as well as controllability. In order to access those benefits it …”

X. Tian, A. Vacca, S. Fiorati, F. Pintore An Analysis of the Energy Consumption in the High-Pressure System of an Agricultural Tractor through Modeling and Experiment S. 9-18

„… cost point of view. Under the push of further reducing energy consumptions and emissions, OEMs are …” „… remote test results comparison: (Left: 0%, 50%, 75%, 90% load settings, Full command, retraction, low T …” „… analyzed. Contrast to the results concluded in lower load conditions, which is not shown here, that higher …”

M. Ehrl, G. Happich Advanced On-board Electronics Architecture with Automotive Ethernet S. 107-112

„… meet strong automotive emissions standards but still allows to use low-cost, light weight, single …” „… interaction with Rest-of-the-World Low-bandwidth communication High-bandwidth communication First generation …”

C. Gentz, G. Jacobs, C. Wyrwich, J. Munch, M. Marsel, M. Lindner, T. Herlitzius Electric mechanic power split PTO for implements S. 119-126

„… order to drive a mechanical implement locally emission-free the unit can also be used as an electric …” „… emission during partial load operation [1]. However, in order to adapt the attachment speed continuously …” „… , the efficiency is around 90 % and reaches up to 94%. The reduced efficiency at lower output speeds …”

S. A. Duppong, M. Kuhl, O. Delvaux Production System Optimization with Electrified Powertrain S. 421-426

„… accomplish speeds up to 50 km/h while keeping engine speed low to improve overall vehicle efficiency and …” „… reduce noise emission. Fig. 3: eAutoPowr modes Demonstrated Reliability John Deere has …”

T. Herlitzius, H. Fichtl, A. Grosa, M. Henke, M. Hengst Feldschwarm – Modular and Scalable Tillage Systems with Shared Autonomy S. 409-420

„… farming. Awareness of limited resources and reduction of greenhouse gas relevant emissions is starting …” „… towards sustainable low-input and high-efficiency agriculture. At present, high-tech agriculture in …” „… requirements, increased CO2 emissions, difficulties in seedbed preparation, plant emergence and depending on …”

A. Biswas, E. Eising SoilReader: A new in-situ multi-depth, multi-constituent, on-the-go precision soil analyzer S. 355-376

„… increased environmental concerns such as soil health, surface water quality, and greenhouse gas emission in …” „… measurement was between 1.61 and 1.72%. and CV was between 38 and 40% (Table 3). While pH showed the lowest …” „… achieved with R2 values ranging from very low to high. As the predictive relationship developed using …”

doi.org/10.51202/9783181023617

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VDI Wissensforum GmbH (ed.)

PIAE EUROPE

2020

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F. Vetter Emissions and odor under control – Thermoplastic elastomers for the vehicle interior S. 149-164

„… awareness along the supply chain can highquality materials with low emission and odor levels be reliably …” „… micro-chamber, but in the TPS materials from KRAIBURG TPE are generally low. Table 1: Emission values of …” „… TPS material for the automotive interior. A lower throughput has a positive influence on emissions …”

M. Hoyer Process-integrated material compounding for the sustainable manufacture of high-strength components S. 15-28

„… significant reduction in emissions, the procurement costs for polypropylene are significantly lower than for …” „… significantly lower water absorption compared to polyamide and its lower specific weight. When replacing …” „… the mold cavity is relatively low. This loss can be further reduced by designing the entire melt path …”

J. De Boever, G. Spingler Crash simulation of the new TNGA intake manifold in glass-fiber-reinforced polyamide S. 43-60

„… accelerate the 2050 challenge of ‘New Vehicle Zero CO2 Emission’ Toyota is developing a new engine series for …” „… lower fuel consumption, higher performance and globally better productivity based on the ‘Toyota New …” „… strength-to-weight ratio intake manifold which has no contact with the low pressure fuel system during vehicle crash …”

A. Tiwari, D. Brands, D. Pelletier, C. Pereira Thermoplastics in electric-vehicle battery applications – A lightweight and efficient EV battery concept S. 349-364

„… protection. Low-density thermoplastic materials with the right composition have the potential to satisfy …” „… recommends that greenhouse gas (GHG) emissions be reduced by 45% (from a reference GHG level of 2010) and …” „… down to zero GHG emissions by 2050 [1]. The transportation sector is responsible for 14% of global GHG …”

F. Vetter Emissionen und Geruch unter Kontrolle – Thermoplastische Elastomere für den Fahrzeuginnenraum S. 165-180

„… - Low-Emission-Compound“ ausgelotet. Der erarbeitete Wissenstand kann in Projekten für den Automobilinnenraum zur …” „… ein „Super-Low-Emission-Compound“ möglich? Mit genau abgestimmten Prozessparametern und optimierten …” „… Super-Low-Emission Compounds sehr nahe. VDI-Berichte Nr. 2369, 2020178 Tabelle 9: Vergleich einer …”

N. Schlutig, J. Oliver THERMOFIL HP® – pushing the boundaries of highperformance glass-coupled polypropylene using the latest development in CAE to accelerate part development S. 93-104

„… CO2 emissions from cars as described in the policy update of the international Council on Clean …” „… but also in a lighter vehicle weight. Fig. 1: C02 emission target values In this context of …” „… level of performance and a light weight in order to achieve the CO2 emissions target, our THERMOFIL HP …”

C. Schulz HiPIMS technology opens up new possibilities for decorative plastic coating S. 265-272

„… Lüdenscheid equipped with a Magpuls MP 2 pulse generator and a Plasus Emicon plasma emission spectrometer …” „… , so that the aspect of low thermal stability must be taken into account when coating plastics. It is …” „… would already be thermally damaged at only a moderate or low utilization of the DC generator. There …”

325 Group Renault Plastic Material Vision for New Mobility Trends S. 311-332

„… approach in material aspects; a) Direct effect on emissions reduction: Contribute to the weight …” „… non painted PPGF material. b) Indirect effect on emission reduction; carbon foot print: Renault …” „… has lower carbon foot print compared to mineral filled PP [4]. NFPP can be adopted to invisible …”

J. Rosenberger Innovative large-scale production application of thermoformed parts for electric vehicles S. 115-122

„… Fig. 1: PARAT locations and areas In addition to its headquarters in Neureichenau, Lower Bavaria …” „… tooling costs (low investment costs) I Short creation time I Modifications can be implemented …” „… emissions of different material concepts were also examined. If the entire process of creating a …”

G. Greene, B. Kilian, R. Reithmeier Increasing the safety of battery modules in electric vehicles with polyurethane pultrusion S. 105-114

„… conservation, and reduction of CO2 emissions have set the stage for the electric vehicle revolution. OEMs …” „… weight low. This paper will present a concept that uses polyurethane pultrusion to increase crash safety …” „… the desire for lower weight, as the battery is now one of the heaviest items of the vehicle. This …”

doi.org/10.51202/9783181023693

VDI Wissensforum GmbH - LAND.TECHNIK AgEng 2023

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VDI Wissensforum GmbH (ed.)

LAND.TECHNIK AgEng 2023

Series: VDI-Berichte

Volume 2427 2023

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D. Dou An examination of viable sustainable solutions for off-road mobile machinery and agriculture S. 425-432

„… options with low lifecycle GHG emission are summarized in Figure 5. Among them, solar and wind are the …” „… infrastructure further develops. These products offer distinct advantages of zero tailpipe emission and low NVH …” „… , powertrain innovation; fit for application, technology roadmap and policy Keywords: greenhouse gas emission …”

J. Engström, A. Örde, A. Hägglund, J. Jansson, L. Johansson, H. Andersson Modular battery swap system as an enabler for fossil free mobile work machines S. 313-320

„… electric power drivelines and by the very low greenhouse gas emissions and environmental impact in the …” „… non-productive time for the machine while charging, lower battery weight on the machine, wider use case for the …” „… with electricity are needed. Battery replacement allows a technically efficient solution at low costs …”

J. Konrad, C. Varlese, C. Junger, R. Krizan, P. Hofmann Fuel cell electric powertrain for the agricultural tractor – FCTRAC: development, performance, and benchmarking S. 49-56

„… thermal system focuses on the challenging fuel cell heat dissipation due to high thermal loads and low …” „… FCTRAC There are currently no satisfactory zero-emission powertrain solutions for agricultural tractors …” „… brake. Via DC/DCs, the PDU powers the 12V and 24V low voltage networks and, thus, the auxiliaries of the …”

S. Willems, R. Himmelsbach, S. Igl Electric powertrain solutions for tractors – An introduction to a highly integrated electric axle drive system S. 295-300

„… 2 reduction and locally emission-free vehicles. Decarbonization and therefore the use of renewable …” „… cell or battery electric drivelines. Electric central driveline solutions can offer zero emission on …” „… , axle drives can deliver a valuable and enabling approach on the road to zero emission operation …”

A. Lajunen Numerical simulation of alternative powertrains and fuels in agricultural tractors S. 29-38

„… to reduce environmental emissions, alternative fuels are also considered at least as a temporary …” „… the target speed especially in low-speed driving. Also, the load resistance in the tillage cycle had …” „… . The major advantage of the fuel cell hybrid and electric powertrain is the significantly lower losses …”

L. Reuter, L. Frerichs Simulation of refueling strategies for a hydrogen operated tractor in agricultural process chains S. 283-288

„… government's objective to limit greenhouse gas emissions in agriculture, reducing CO₂ emissions from …” „… alternative tractor drive concept, it is becoming apparent that the reduced working time due to the low …” „… refueling concepts Due to the current low expansion of the hydrogen infrastructure, some manufacturers have …”

C. Nöß, J. Weller A Fuel Cell Tractor in Operation – Concepts and Field Data S. 39-48

„… , hydrogen has come to public attention. Embedded in a publicly funded project in Lower Saxony, Germany …” „… Lower Saxony, Germany, fitted well regarding timeline and content to the already existing ideas at AGCO …” „… potential reduction of greenhouse gas emissions in agricultural machinery. Therefore, different work …”

R. Schmetz Methodical redesign of drivetrains of agricultural machinery S. 301-312

„… transformation to low-emission and energy-efficient drive technologies for agricultural machinery often also …” „… requires the development of low-emission and energy-efficient drives through projects to optimise or even …” „… ) emission-free operation, but also offers advantages due to the very good efficiency of converting electrical …”

X. Tian, R. P. Jenkins, J. Lengacher, A. Vacca, S. Fiorati, F. Pintore, D. Cristofori An Analysis of Mixed Hydraulic and Electric Configurations for the Actuation of Tractor Auxiliary and Implement Functions to Reduce Power Consumption S. 1-14

„… , Italy Abstract The recent push toward low emission off-road vehicles has led to increased interest in …” „… , the recent VDI-Berichte Nr. 2427, 2023 1demands for low- or zero-carbon vehicle technologies in both …” „… reaches 55% efficiency [3][4]. However when supplying the planter, the current efficiency is as low as 20 …”

C. Birkmann, C. Schaub, M. Schmotz, N.-K. Rose, S. Walther, P. Guillaume Multi-Dimensional Three-Point-Hitch Control to Optimize Performance, Efficiency and Working Quality of Tractor Implement Combinations S. 181-190

„… three-point-hitch control strategy taking both, the lower links and the top link into account to increase the …” „… control. This control strategy adjusts the height of the lower links, e.g. when using soil-cultivation …” „… lower links. This lack of control leads to disadvantages regarding to working performance, working …”

C. Mayer, T. Eberhart, K. Huber, J. Karner Fuel cell electric tractor powered with biogenic hydrogen – Vehicle design and architecture S. 57-62

„… improvement or alternative to fossil fuels. For the zero-emission goal, a broader vision has been adopted …” „… : Simplified electric system architecture of the FCTRAC The fuel cell system (FCS) is based on the low …” „… low voltage (LV) system (fans and water pumps for the new cooling circuits) as well as the new …”

M. Mattetti, L. Angelucci The development of a reference working cycles for agricultural tractors S. 15-20

„… exhaust emissions [2] [3]. Reference driving cycles should portray the typical driving conditions in a …” „… to the supposed low disparity in the operating schedules of nonroad vehicles. This paper aims to …” „… . [3] André, M., Hickman, A. J., Hassel, D., & Joumard, R. (1995). Driving Cycles for Emission …”

K. Kivekäs, A. Lajunen R. Stirnimann#S. Gfeller High-fidelity simulation modelling of agricultural mobile robots S. 255-262

„… , contribute significantly to greenhouse gas (GHG) emissions, exacerbating global climate change. Agriculture …” „… accounts for approximately 10% of the European Union’s total GHG emissions [1]. Thus, there is an urgent …” „… its relatively low computational load compared to DEM and SPH approaches. A multibody model of a …”

F. Wohlfahrt, P. Heymann Potentials of Functional-electrified System Topologies for the Powertrain Design on Combine Harvester Applications S. 341-348

„… technologies with lower energetic density (e.g. battery-electrification or fuel-cells) are even more demanding …” „… variant it is possible to enable platform changes to smaller engines and lower engine speeds to achieve …” „… combine concepts towards emission- and energy-consumption-optimized harvesting solutions. Still the aspect …”

B. Marx, A. S. Herrmann Quo Vadis bale twine? S. 483-488

„… and organic PP cannot compete with this low price. In addition, further properties of these materials …” „… Table 1. The lowest potential to conserve resources and the environment is the use of sustainable …” „… Literatur [1] Bertling, J., Zimmermann, T., Rödig, L.: Kunststoffe in der Umwelt – Emissionen in …”

G. Scotto di Vetta, J. Ladinger Work light modularity, research for real 360° visibility, focus on hidden areas to increase safety and performance for the customer S. 357-362

„… lighting is low (evening and night condition). To reach the target, the easiest and fastest way is to …” „… field. Environmental lighting arises from the interplay between surfaces and the emission of light …”

doi.org/10.51202/9783181024270

VDI Wissensforum GmbH - International Conference on Gears 2017

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VDI Wissensforum GmbH (ed.)

International Conference on Gears 2017

Series: VDI-Berichte

Volume 2294 2017

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C. Brecher, C. Löpenhaus, M. Schroers, T. Frech, P. Scholzen Optimization of NVH behavior of gears by alternative gear materials S. 539-552

„… order shows a successive reduction of the noise emission due to a lower core density of the PM1 variant …” „… in this operating status, the structure-borne noise emission is lower, compared to the PM2 gear and …” „… gears [1]. Due to a lower density, alternative gear materials also lead to a decrease in weight …”

M. Koop, E. Melnikov, V. Merz Design investigations and indications for acoustical optimized gear meshes using plastic gears S. 1519-1530

„… reduce noise emissions in the mesh. If plastic gears are involved, this is not the case anymore. The …” „… be shown by examples of FEA results demonstrating effects of the lower Young’s Modulus and others on …” „… specific design strategies. Also it can be shown, that due to the lower stiffness some design rules like …”

Foreword S. 1-4

„… , at low cost and with minimal losses and noise emission. However, the demands which can only be met …” „… research and development. In modern gearbox systems, methods synthetic and low viscosity oils or reduced …” „… for power train components offer favorable properties such as low friction, dry-running capabilities …”

B. Kohn, T. Utakapan, M. Fromberger, M. Otto, K. Stahl Flank modifications for optimal excitation behaviour S. 1319-1330

„… – and in general not at all – yield a low mesh excitation. Since noise emission levels of gearboxes are …” „… gearboxes, several goals must be fulfilled namely a high load carrying capacity, a low noise mesh design for …” „… studies show that these flank forms promise very low excitation levels at a chosen target load range …”

R. Weidig Adoption of polymer gears – Challenges and solutions S. 1565-1574

„… , low-mass and highly efficient solution to significantly reduce NVH in engine related application areas like …” „… have gained growing attention and acceptance as cost-effective, low-mass and highly efficient …” „… offer many cost, design, processing and performance advantages over metal combined with lower NVH …”

G. Hlebanja, S. Kulovec, D. Zorko, J. Hlebanja, J. Duhovnik Influence of the tooth flank shape on thermal load of the gear S. 1583-1592

„… contact were calculated for both gear types, which actually disclosed lower thermal load of S-gears. Next …” „… end and corresponding higher reduced radii of curvature implying lower flank pressures. - The …” „… easy task. Another consideration is that the quality of moulded gears is rather low which influences …”

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

„… smaller-size and higher-ratio worms but are significant in the larger-size and lower-ratio worms. The actu …” „… in much lower friction forces that cannot be found in other metal combinations. It also results in …” „… milling. The very low cutting forces permit high infeed rates. Large quantity and small size of worms and …”

T. Saito, K. Miyamoto Traction drive analysis identified with rheological friction property of traction fluid S. 1185-1190

„… efficiency and reduced CO2 emissions. In one response to these demands, internal combustion engines are …” „… distribution of contact pressures, and the measurement results encompass a range from low contact pressure to …” „… order from low pressing loads to high pressing loads. Identification was performed so that the torque …”

R. Meissner, M. Liewald, T. Benkert, M. Hiller, W. Volk Multi-component gearwheels and their manufacturing processes S. 1299-1306

„… increasing stringent restrictions concerning the exhaust emissions until the year 2020, the automobile …” „… manufacturers aim at reducing their cars’ emissions. Lightweight design has become an important objective to …” „… clean shear angle is lower than the target angle of 90°. A correction of cutting clearance towards small …”

T. Aoyama, H. Inokura, Y. Shibata Prediction of plastic deformation in hypoid gears S. 669-682

„… To reduce CO2 emissions, weight and size of automobile transmission gears have been reduced. When …” „… d ef or m at io n No. High input torque Low input torque (a) (b) 実験計算 Heel Toe 0 35 D ef or m at io …” „… side. (a) High input torque (b) Low input torque Fig. 7 …”

K. Togai, N. Fujinaga A reduced order internal combustion engine model for transmission development S. 1191-1198

„… frequency is sufficient lower than that of the fuel transportation, engine output can be described as a …” „… control mean to a combustion cylinder. If required frequency is sufficient lower than that of the fuel …” „… torque control measures. For speed tracking application, e.g. emission test cycle simulation, sometimes …”

L. Zhao, R. C. Frazer, B. A. Shaw The influence of overlap ratio on transmission error in parallel axis gears S. 939-952

„… vibration, low losses and noise emissions are increasing important. Gear transmission error is an accepted …” „… specification requirements of gear transmissions are not limited to strength and reliability but also low …” „… line length is more gradual than spur gear, so acceleration and deceleration is lower, reducing dynamic …”

F. Yang, W. Bi Efficiency evaluation of multi-speed transmission S. 1101-1108

„… the concept design since today’s vehicle emission regulations are becoming much stricter. Efficiency …” „… shift 2, 3, 4, 9 are much lower than that of other shifts, which are caused by circulating powers. The …” „… Figure 2b to reduce the power loss on the components which have lower efficiency. For instance, by …”

G. Goch, K. Ni, Y. Peng, A. Günther Paradigm change in cylindrical gear metrology using areal measurement and evaluation S. 1025-1038

„… gear design with complex flank features aims to meet the demanding performance requirements of lower …” „… noise emission, higher power density and longer lifetime. Geometric properties evaluated over the entire …” „… order to reduce the noise emission and increase the power density. Consequently, gear inspection on a …”

Y. Shen, S. Rinderknecht, M. Hoppert General modelling method of power losses in transmission with parameter identification S. 905-916

„… benchmarking of transmissions. 1. Introduction To reduce the CO2-emission of vehicles, improvement is …” „… . The efficiency map of the transmission for the lower ratio was acquired at a stationary temperature …” „… methods. The largest difference is found in the low input torque area. The efficiency calculated by the …”

C. Brecher, C. Löpenhaus, J. Brimmers Potential of free flank modifications for beveloid gears S. 553-564

„… lower noise excitation. 2 Introduction and Motivation Driven by statutory requirements to reduce the …” „… CO2 emissions, automobile manufactures are forced to produce small, lightweight and highly fuel …” „… torque level TMax = 500 Nm. The modifications offer the lowest possible transmission error on this …”

M. Ophey, F. Klocke, C. Löpenhaus Approach for modeling grinding worm wear S. 1365-1378

„… Processes, b) Energy Absorption, c) Energy Emission Adhesion & Shearing Plastic Deformation Grooving …” „… the lower diagram and wear plotted against machined gears as presented before. For both processes a …”

doi.org/10.51202/9783181022948

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