Zusammenfassung
Talking about the design of modern high-performance power train applications, one of the essential components to focus on are the gears. Gears convert torque and speed in a very wide power range, at low cost and with minimal losses and noise emission. However, the demands regarding cost, power density, NVH-behavior and efficiency are steadily increasing. Demands, which can only be met using modern gearing technologies that allow combining individual materials, heat treatment and manufacturing processes. Particularly in the industrial sector, the requirements for the reliability and service life of the gear units have increased. Therefore, more and more accurate calculation methods are required for the load bearing capacity, life expectancy and failure probability as well as better test methods. This aspect is also becoming more important with regard to Industry 4.0 and Predictive Maintenance. In addition, the potentials of innovative production methods like powder metal sintering, plas...
Schlagworte
Antriebsstrang Getriebe Komponenten NVH-Verhalten Service Sicherheit Test Methoden power train applications gears NVH-Behavior power density high performance gears service reliability test methods predictive maintenance load bearing capacity powder metal sintering plastic molding- 1–4 Foreword 1–4
- 231–280 Applications 231–280
- 433–466 Bevel Gears 433–466
- 517–552 NVH Behavior – Noise 517–552
- 553–590 Beveloid Gears 553–590
- 591–622 Magnetic Gears 591–622
- 669–718 Hypoid Gears 669–718
- 881–926 Efficiency 881–926
- 927–962 Transmission Error 927–962
- 963–1002 Materials 963–1002
- 1003–1050 Quality / Measurement 1003–1050
- 1051–1100 Reliability 1051–1100
- 1101–1208 Poster Exhibition 1101–1208
- 1209–1250 Intelligent Gear Production 1209–1250
- 1247–1250 Production cells in transition 1247–1250
- 1473–1518 Tribology of Plastic Gears 1473–1518
- 1519–1540 NVH of Plastic Gears 1519–1540
14 Treffer gefunden
- „... , contact fatigue strength of three test variants of different material or heat treatment is investigated ...” „... depth of the fatigue zone can be explained by the time-depended change of normal and shear principal ...” „... normal and shear principal stress. The combination of damage characteristics and the new evaluation of ...”
- „... or ultimate strength. In later days tests with mean stress equivalent to the stress amplitude were ...” „... taken into account. As fatigue tests are expensive and take a lot of time, often only one or two aspects ...” „... approaches. Therefore, fatigue tests with different materials, notch geometries and loads were carried out ...”
- „... taken as parameters for measuring the shear force of the traction fluid used. The four-roller test ...” „... temperature were identified from the dynamic behavior analysis model for a four-roller test apparatus together ...” „... glass transition from liquid to solid phase under high contact pressure conditions, and high shear ...”
- „... twin-disk test rig for representative thermoplastic gear operating conditions. After a comparison to plain ...” „... , 6]) or shear thinning (e.g. [7]) rheology. Typical examples of soft TEHL contacts are lubricated ...” „... flow) over rolling friction (Poiseuille flow) and approximates the shear rate with an appropriate film ...”
- „... gearbox under test. The average gear friction coefficient can also be used to check the transmission for ...” „... simulation model was verified with own test results. This calculation approach is the starting point of this ...” „... worm gear drives of different sizes and gear ratios. In the tests, ZK-type worm gears with two ...”
- „... pitting resistance is specified for CuSn12-C-GZ. A nominal shear stress approach is used to calculate the ...” „... for shear stress at tooth root FG is determined based on the shear endurance strength FlimT ...” „... according to [8]. The shear endurance strength as a function of the worm wheel material can be determined ...”
- „... Simulation and test method for the lubricant’s influence on the wear and fatigue mechanisms on ...” „... calculation method for each individual lubricant. An experimental test method is introduced in which the ...” „... criterion defines the product of the sliding path and the friction shear stress as the main driver for ...”
- „... at the FZG efficiency test rig and FZG Bearing power loss test rig have been carried out (Jurkschat ...” „... experimental investigations at the FZG efficiency test rig. Test gears with a variation of different helix ...” „... from separate measurements at the FZG bearing power loss test rig. Results of this study are used to ...”
- „... information about the correct lubrication of all the components unless with expensive tests. In the past, the ...” „... simulation of a simple test case which geometry was that of a back-to-back test bench was reduced by 93.5 ...” „... back-to-back test rig as shown in figure 1. Fig. 1: example of mesh generation (extrusion) In order to ...”
- „... 3996 [1] is based on shear stresses. Another algorithm [2] is based on von-Mises equivalent stresses ...” „... (Figure 6, central column). The optimal mesh discretization were figured out by convergence tests and set ...” „... out in material tests, mentioned below. Worm: steel Wormwheel rim: bronze CuSn12Ni ...”
- „... micropitting and results of experimental tests (two-disk Rolling-Sliding Contact Fatigue, RSCF, test ...” „... development of an interrupted test method to monitor the micropitting progression with the development of a ...” „... damage initiates on surface asperity level rather than subsurface localized maximum shear stress (macro ...”
- „... high speed automatic hardness tester Prof. hc. Dr.-Ing. Aizoh Kubo, Research Institute for ...” „... that examination. To find the quality problem of purchased steel, we develop now a new tester for ...” „... some steel kinds with this tester are introduced. INTRODUCTION In my job for trouble shooting of ...”
- „... process. The optimization is performed using a genetic algorithm that tests a lot of different gears. The ...” „... ) Generalized stress: bending moments (Mx,My)T , twisting moment Mxy and shear stress forces (Qx,Qy)Tooth ...” „... transverse shear deformation on the bending of elastic plates. Journal of Applied Mechanics, 12 :69–76, 1945 ...”
- „... factor KHβ and the transverse load factor KHα. The empirical factors Zε and Zβ are derived from tests ...” „... with standardized symmetrical test gears. The application of these factors on gears with significantly ...” „... comparison with the stress limit derived from tests with standardized test gears, where these stress limits ...”