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VDI Wissensforum GmbH - International Conference on Gears 2023

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VDI Wissensforum GmbH (ed.)

International Conference on Gears 2023

Series: VDI-Berichte

Volume 2422 2023

Results in this title

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

„… machine-tool envelopes. This step is achieved through a state-of-the-art identification algorithm that the …” „… simulation tool. The maximum contact pressures are limited by the material properties, thus proper nonlinear …” „… contact analysis (LTCA) to predict load sharing between the mating teeth and the pressure distribution …”

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

„… to satisfy precisely in the case of the PLA wheel because of the 3D printing effect. This last point …” „… identification of the inertia of the 3D printed gear are not as precise as the steel ones. VDI-Berichte Nr. 2422 …” „… parameter equals 1 at the first grid points away from all the walls whatever the rotational speed (for …”

P. Chavan, M. Lutz Validation of an industrial gearbox model for predicting vibro-acoustic behavior S. 619-632

„… velocities at distinct points on the housing during operation are compared with corresponding experimental …” „… normal velocities at two specific points during the rundown phase with experimental measurements, a …” „… bands, and the driving point displacement-to-force Frequency Response Function (FRF) is measured at a …”

T. Inoue, D. Iba, N. Fujita, A. Nishikawa, M. Ishii, J. Hu, H. Shimasaki, N. Miura, A. Masuda, I. Moriwaki, J. Hongu Effect of Load Cycles on Return Loss and Resistance of Sensor and Antenna Circuits Printed on Plastic Gears S. 659-674

„… Distribution by Multi-Point Pressure Sensor with Shared Lead Films), Transactions of the JSME Series C (In …” „… . The results revealed two resonance points below 0.5 GHz in the return loss of the smart gear, and the …” „… , an attempt has been made to measure the contact pressure on the gear tooth surface by printing …”

C. M. C. G. Fernandes, J. M. A. Pinto, D. E. P. Gonçalves, A. R. Silva Reduction of root and flank temperature using a hybrid polymer-metal rack S. 1547-1562

„… rack Gear module, m / mm 4.5 Pressure angle, / ° 20 Root radius coefficient 0.38 Addendum coefficient …” „… side of the system to apply the necessary contact pressure on the tooth flank. To hold all the vertical …” „… . VDI-Berichte Nr. 2422, 2023 1553T T T (1) In Figure 6, point T2B is under analysis and the stabilization …”

B. Černe, N. Vukašinović, D. Zorko In-situ experimental methods for measuring tooth meshing displacements and wear during polymer gear tests using a high-speed camera with microscopy optics S. 1563-1580

„… profile at any point during a gear test and obtain a comprehensive time-dependent wear progression …” „… : the current contact point and both edges of the tooth root. These stress concentrations can initiate …” „… [mm] 6 Pressure angle 20 Profile shift coefficient x1,2 0 Shaft diameter dh 6 VDI-Berichte Nr. 2422 …”

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

„… basic qualitative von Mises stress field contours of a loaded spur gear tooth. Point O lies at the …” „… intersection of the force vector (acting on the highest point of single tooth contact – HPSTC of the drive side …” „… ) and the tooth centerline. Point A lies at the critical section of the tooth tension side, where cracks …”

I. Criscuolo, F. Carneiro, G. Guimarães, R. Rego, J. Mascheroni Indirect Selective Laser Sintering: Modeling and analysis of surface densification by shot peening S. 1681-1698

„… concentration points, and the presence of pores can further drive crack nucleation and propagation. Powder …” „… melting point eutectic alloy, it promotes a transient liquid phase during sintering, considerably …” „… Material Coverage (%) Media diameter (mm) Almen intensity (mm) Air pressure (bar) AISI 5120 (Polymer-coated …”

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

„… vertical axis (y-axis), which allows precise identification of the positions of the characteristic points …” „… concentration values and increase the tooth bending strength. The start point is a definition of standard …” „… , 2023946profile shift coefficient x1=0, x2=0,328; face width b=350mm; module m=mn=24; pressure angle = n=20 …”

H. Mahe Model based NVH design: e-bike application S. 1229-1238

„… identification of the gear meshes responsible for noise, a linear 3D model based on a commercial software has …” „… . 3-Whining noiseIn a gear set, the contact point position between the driving gear (pinion) and the …” „… pressure at the biker’s ear. 3-2-Test resultsOn figure 9, the noise measured at the system vicinity is …”

doi.org/10.51202/9783181024225

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

Results in this title

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

„… high contact pressure states. The identification was thereby performed using measurement results in …” „… property of traction fluid strongly dependent on surface extreme pressure, slip rate, and contact surface …” „… operating points. The ratio range can also be increased to around 7.0 by increasing the pulley diameters …”

C. Weber, T. Tobie, K. Stahl Investigation on the flank surface durability of gears with increased pressure angle S. 173-184

„… Investigation on the Flank Surface Durability of Gears with Increased Pressure Angle Christian …” „… , increased pressure angles (αn > 20°) and / or asymmetric tooth shapes (αn < 20° and αn > 20°) have been …” „… pressure angles αn ≈ 20° according to the basic rack as specified in ISO 53 [7] in today’s power …”

B. Černe, D. Zorko, J. Duhovnik Semi-analytical method for the prediction of the flank temperatures of polymer gears during running S. 1611-1624

„… point quickly rises and achieves its highest values at the point of highest contact pressure and …” „… flank contact pressures and sliding speed patterns can be identified. Based on the stress and sliding …” „… temperature identification is based on a decomposition of the total contact temperature into a bulk …”

D. Ghribi, C. Peyrac, M. Octrue Shot peening of gear tooth flanks: Search for an optimal surface topography against the micropitting S. 153-162

„… other, at a given pressure with a given sliding rate, were carried out under the following conditions …” „… : Theoretical applied contact pressure: 2350 MPa, F=20Hz (cylindrical specimen speed: 1074 rev/min et crowned …” „… given in Fig. 6. Fig. 6: Example of micropitting identification and quantification 4. Experimental …”

C. Güntner, T. Tobie, K. Stahl “Alternative” microstructures and their influence on mechanical properties of case-hardened gears S. 399-410

„… austenite in the specifications of ISO 6336 for case hardened gears [8]; * reduced data points 250 300 …” „… retained austenite in the specifications of ISO 6336 for case hardened gears [8]; * reduced data points …” „… ground. All test gears were mechanical cleaned after the heat treatment process. The identification of …”

doi.org/10.51202/9783181022948

VDI Wissensforum GmbH - International Conference on Gears 2019

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VDI Wissensforum GmbH (ed.)

International Conference on Gears 2019

Series: VDI-Berichte

Volume 2355 2019

Results in this title

F. Muller, S. Schumann, B. Schlecht Determination of S-N curves for pitting based on local damage analysis S. 657-668

„… point, Identification of suitable S-N parameters to fit the observed course of damage. Local …” „… turn, flank points outside the damage area need to show 1. Eventually, for the identification of …” „… valid point on the S-N curve for one test run. To create a statistically firmed S-N curve, at least …”

J. Thomas, C. Gosselin, P. Eng Design and rating by means of loaded TCA of straight bevel differential gears S. 493-504

„… ball/ball or ball/plane contact (point contact): 2176 √ N/mm² (4) With pH Hertzian Pressure in …” „… converted into point cloud data files which are used as input for the LTCA calculation program BECAL by FVA …” „… gear set has been RE, the tooth flank topography can be converted into point cloud data files which are …”

B. Cao, G. Li Effect of installation errors on beveloid gears’ precision ground by cone-shape worm wheel S. 1165-1172

„… and r denote the pressure angle of left and right profile. represents the cone angle and …” „… surface and tooth surface. In grinding, it is point contact between a worm wheel and beveloid gear. All …” „… meshing points meets the following meshing equation which forms gears surfaces. 12 0n v (2) Where n …”

N. Yildirim, M. Yasar, E. Yildirim, F. Erdogan, B. Karatas Experimental verification of improvements in static and fatigue bending capacity of spur gear tooth via tooth root design optimization S. 959-972

„… 20degrees pressure angle with addendum coefficient of 1.0 and dedendum coefficient of 1.25 and zero …” „… highest point of single tooth contact, HPSTC, (for unity gear ratio). Static tests VDI-Berichte Nr. 2355 …” „… only a prediction and need to be verified by strain measurements at the critical (max stress) points …”

F. Concli, C. Gorla Dynamic models for planetary gearboxes SHM S. 471-480

„… solver separately computes analytically the contact points from the rest of the model and therefore …” „… stresses on the surface, both in terms of Von Mises equivalent stress and contact pressure diagram …” „… pressure pattern: it leaves unloaded (or less loaded depending on the depth of the pit introduced) the …”

C. Chevrel-Fraux, R. Fargere, J. Bruyere, P. Velex Modelling of high power geared transmissions, introduction of a filling material S. 903-914

„… investigated. An identification method of the values of lumped parameters as a function of material …” „… of the wheel in order to apply meshing effects, at bearing centre to set boundary conditions (points …” „… difference between the normal approach δ(Mij) and the initial gap δ0(Mij) for any potential contact point …”

S. Nowoisky, M. Grzeszkowski, C. Guhmann, J. G. Pelham Monitoring concept study for aerospace power gear box drive train S. 269-286

„… gearbox is introduced between fan and intermediate pressure compressor. This enables to run the turbine …” „… planetary gear. The center of the window is at the carrier angle point, if a planet gear intermeshes right …” „… identification with acoustic emission techniques," in IEEE Prognostics and Health Management, Ottawa, 2016. [7 …”

doi.org/10.51202/9783181023556

Nikolas Bufe - Method for Non-Invasive Skin Artifact-Free Spatial Bone Motion Tracking Using Pressure Sensor Foils

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Nikolas Bufe

Method for Non-Invasive Skin Artifact-Free Spatial Bone Motion Tracking Using Pressure Sensor Foils

Series: Biotechnik/Medizintechnik

Volume 296 2019

Results in this title

Validations S. 32-58

„… Block 2 Sensor foil Block 3 Pressure point Figure 5.1: Basic blocks for pressure point identification …” „… identification of the pressure point from a given pressure distribution was carried out as described in Section …” „… pressure point from a given pressure distribution. Then, the ellipsoid-approximated bone model is validated …”

Titelei/Inhaltsverzeichnis

„… -model approximation – Pressure-foil palpation – Three-Ellipsoid 2D-3D registration – Pressure point identification …” „… A. Kecskeméthy. Position analysis of a planar rigid-body tracked by three ellipse pressure points …” „… approach for bone pose estimation via three external ellipsoid pressure points. In 15th Int. Symposium on …”

Introduction S. 1-8

„… determination. It includes the validation of the pressure point identification from a given pressure …” „… sensor, a relative pressure point can be identified representing the closest point to the bone surface …” „… pressure point. However, while the pressure point coordinates are known, the actual minimal distances …”

doi.org/10.51202/9783186296177

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VDI Wissensforum GmbH (ed.)

Autoreg 2019

Series: VDI-Berichte

Volume 2349 2019

Results in this title

F. Hundertmark, M. Grotjahn Automated design of structured gain-scheduling oil pressure controllers by modern synthesis methods S. 403-416

„… pressure specified for each operating point is required [14] [6], where in the presented case the operating …” „… point is defined by the engine speed. An oil pressure controller is used to provide the required oil …” „… properties of the linear operating points of the oil pressure system are presented. This is followed by the …”

N. Althar Udupa, E. Schulz, M. Schultalbers Polytopic LPV Controller Design to Control the Boost Manifold Pressure in an Internal Combustion Engine S. 377-388

„… pressure with respect to different operating points which are dependent on relative air charge in the …” „… of boost manifold pressure at different operating points is a challenging task. The nonlinear and …” „… Abstract Controlling the boost manifold pressure is an essential entity in an internal combustion …”

doi.org/10.51202/9783181023495

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