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Gefahrstoffe

Browse Volumes: Gefahrstoffe

GrdL Volume 83 (2023) Issue 01-02 ISSN Online: 0949-8036

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Cornelia Wippich, Katrin Pitzke Berechnung der Messunsicherheit – Teil 1: Allgemeines und Grundbegriffe/Calculation of measurement uncertainty – Part 1: General information and basic concepts S. 27-29

„… Messunsicherheit bildet der Leitfaden ISO/IEC 98-3 „Uncertainty of measurement – Part 3: Guide to the Expression of …” „… Uncertainty in Measurement“ (GUM). Es gibt zur Berechnung unterschiedliche Verfahren mit unter-schiedlichem …” „… Gefahrstoffen am Arbeitsplatz eingegangen wird.A B S T R A C T The calculation of the measurement uncertainty …”

doi.org/10.37544/0949-8036-2023-01-02

VDI Wissensforum GmbH - International Conference on Gears 2022

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VDI Wissensforum GmbH (ed.)

International Conference on Gears 2022

Series: VDI-Berichte

Volume 2389 2022

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A. Wedmann, M. Stein, K. Kniel Gear calibration in tactile scanning mode on CMMs S. 1539-1552

„… dynamic effects which might increase the measurement uncertainty. But in light of the tight manufacturing …” „… tolerances specified in international standards, the aim must instead be to reduce measurement uncertainty …” „… possible measurement uncertainty prevails at PTB, and this has until now only been possible by single-point …”

K. Lubke, H. Rohr Quality inspection of common step gearings – Overview of different types and their assessment S. 959-968

„… the CAD model surface with a simulated uncertainty. Fig. 6: Virtual measurement with QUINDOS of a …” „… ). The task includes measurement and evaluation. The interpreted results enable a closed-loop to …” „… of large cams the measurement of the surface points must be possible without rotary tables. This …”

K. Lubke, M. Stein, S. Lin Validation of evaluation algorithms for cylindrical involute gears on coordinate measuring machines – new challenges according to standardization S. 1529-1538

„… ) provided by the user is recommended to be smaller than the smallest measurement uncertainty by at least a …” „… tasks are the measurement of profiles, helices and pitch points on the gear flanks. Based on the …” „… quality assessment of cylindrical involute gears are cmm measurements. Common gear measurements include …”

J. Hochrein, M. Trubswetter, M. Otto, K. Stahl Direct flank geometry calculation for face gears S. 1447-1460

„… . For comparison, all deviations are below the lowest recommended measurement uncertainty for gears (1 …” „… the recommended measurement uncertainty for gears. a) Deviation boxplots b) Zoomed deviation …” „… 99 points of the tooth surface were calculated. For esco, the measurement normal gives the …”

J. Gotz, F. Siglmuller, M. Furst, M. Otto, K. Stahl Experimental investigation of the dynamic load sharing of planetary gearboxes S. 409-420

„… and the operating conditions. Detailed simulations or extensive experimental measurements are required …” „… and cause an uncertainty in the design. Thus, in this paper the dynamic load sharing behaviour is …” „… resulting from the manufacturing process are determined by a 3D measurement. The maximum pin hole position …”

M. Steinbacher, T. Boyraz, R. Fechte-Heinen, G. Hellenbrand Heat treatment development for the new steel grade X20NiCrAlMoV6-5-2-1 for high performance gear wheel application S. 891-902

„… spectroscopy, Thermo Scientific ARL 3460). For the measurement of the chemical composition of the steels, for …” „… carbon profile measurement, the sample was ground to specific depth and subsequently analysed with at …” „… . 2389, 2022 893Metallographic procedure and microstructure evaluation, hardness measurement …”

E. Lamaj, J. Blomeke, F. Rudolph, J. Hermes A comprehensive, fully parametrized calculation model for improved helical-hypoid gearbox efficiency S. 825-836

„… model is generated from the meas-urement data and evaluated in Ansys. The sum of inner and outer contact …” „… . Comparing measurement and calculation data, both present good matches. Fig. 4: Axial stiffness results for …” „… hypoid gears are below an accepted uncertainty range of 10%. The resulting bending curves of the input …”

I. Hong, Z. Teaford, A. Kahraman A comparison of gear tooth bending fatigue lives from single tooth bending and rotating gear tests S. 45-74

„… of experimental material fatigue data. Due to the uncertainty of these models, gear designers still …” „… all of these differences is difficult. This is further complicated by the uncertainty that the …” „… pinion was sustained at about 4400 rpm for all load levels used in testing. Dynamic strain measurements …”

B. Legrady, M. Taesch, G. Tschirschnitz, C. F. Mieth Prediction of churning losses in an industrial gear box with spiral bevel gears using the smoothed particle hydrodynamic method S. 651-664

„… of Technology for a bevel gear pair under 1 kNm nominal load. These measurements provide validation …” „… measurements for a specific gearbox. Therefore, his findings cannot be applied to arbitrary bevel-geared …” „… measurement resulting in two torque readings that cover 15 s of measurement time each. The load-dependent and …”

S. A. Bohme, J. Keski-Rahkonen, T. Komssi A standardizable approach to tooth flank fracture S. 371-388

„… areduction of the uniaxial fatigue strength f−1.2.2 Strength modelThe hardness measurements conducted in the …” „… ). Hardness measurements that were carried out during the production of module 5 to 35sized bevel gears …” „… should depend on the uncertainty of theconsidered loads and set conservatively. Whereas the pitting …”

doi.org/10.51202/9783181023891

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Gefahrstoffe

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GrdL Volume 82 (2022) Issue 11-12 ISSN Online: 0949-8036

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Fabrizio Innocenti, Rod Robinson Differential Absorption Lidar (DIAL) Measurements of Pollutants and Greenhouse Gases from Industrial Emissions S. 310-312

„… , typically four, repeated scans. The standard uncertain-ty of each DIAL measurement is estimated based on the …” „… include the measurement itself (random DIAL measurement uncertainty), variability in the source emissions …” „… least four DIAL scans has been showed to be representative of the measurement uncertainty. These studies …”

doi.org/10.37544/0949-8036-2022-11-12

VDI Wissensforum GmbH - Humanschwingungen 2018

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VDI Wissensforum GmbH (ed.)

Humanschwingungen 2018

Series: VDI-Berichte

Volume 2322 2018

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U. Kaulbars Messunsicherheit von Arbeitsplatzmessungen – Orientierungswert für Hand-Arm-Vibration aus Ringversuch S. 63-78

„… Ringversuch Uncertainty in workplace measurements – guideline value for hand-arm vibration from …” „… the reliability of measurement results to be estimated, the measurement uncertainty must be stated …” „… . The measurement uncertainty constrains the range of values that covers, with a certain probability …”

doi.org/10.51202/9783181023228

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Gefahrstoffe

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GrdL Volume 83 (2023) Issue 05-06 ISSN Online: 0949-8036

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Cornelia Wippich, Katrin Pitzke, Jana Dospil, Jörg Rissler Berechnung der Messunsicherheit – Teil 2: Unsicherheitskomponenten eines Messverfahrens/Calculation of measurement uncertainty – Part 2: Uncertainty components of a measurement method S. 101-105

„… re-quirements for the performance of measurement methods and thus also for their measurement uncertainty. In …” „… the measurement uncertainty of the measurement methods used. To calculate the measurement uncertainty …” „… calculation of the measurement uncertainty, which will be ex-plained in the following third part of the …”

doi.org/10.37544/0949-8036-2023-05-06

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