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- Kapitel Ausklappen | EinklappenSeiten
- 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
20 Treffer gefunden
- „... high rotational speeds. Subsequent measurements and tests of the angular magnetic gearbox have shown ...” „... measuring of magnetic angular transmission at different revolution speeds at the input side At low ...” „... A Novel Magnetic Angular Transmission Dr. Stefan Vonderschmidt, Dipl.-Psych. Andreas Vonderschmidt ...”
- „... recording of different physical quantities for 9 speed/torque configurations, in particular transmission ...” „... vibration and radiated noise in a gearbox. It corresponds to the existing offset between the ideal angular ...” „... calculation is done by formula (1) and deals with the angular displacement of the drive gear: (1 ...”
- „... changes of the force and the speed of reducers. In order to evaluate the performance of precision ...” „... torque and slow load speed, some kind of loading mechanisms and methods was desirable. The way for high ...” „... applied torque and the torsional angular displacement of testing reducer output in a testing process was ...”
- „... ΔSTE(t) is the variation of relative deflection in angular position between the driving and the driven ...” „... rotation speed at constant torque gives a constant complex amplitude of mesh excitation with varying ...” „... manufactured, thereby emulating the component widely-used as a general-purpose speed reducer. Table 1 shows the ...”
- „... established for all gears with angular displacements, including all bearing manufacturing errors, gear ...” „... . Table 1: Star reducer gear parameters Name Teeth number Modulus Input power Input speed Zs1 15 1.5 ...” „... Fig. 2: Load distributions between star gears VDI-Berichte Nr. 2294, 2017772 3. Angular ...”
- „... rVN (1) where the relative speed vector of the contacting tool to work surfaces is in ...” „... (angular or linear), work piece roll angle 3 and S, the position of a point along the edge of the cutter ...” „... expression of the difference between the actual and theoretical angular positions of the gear member, as per ...”
- „... and LS are the angular velocity and torque of the high-speed input and low-speed output shafts ...” „... speed reducers may be broadly classified as high or low-ratio, depending on whether they provide a ...” „... capacity, speed, and efficiency are measured in a series of destructive tests, and the results are ...”
- „... comparison with FEA All the shown measurements were done as a speed-up test and then, afterwards ran with a ...” „... a contact point in a specific transverse section at any angular position of the gear mesh ...” „... taken into account. Fig. 3: Angular deviations compared to constant rotation for different material ...”
- „... resonances away from operating speeds, minimizing response and optimizing the structural design. Therefore ...” „... tuning resonances away from operating speeds, minimizing response and optimizing the structural design ...” „... product is applied mainly for operations with relative low speeds. Abaqus/Explicit can be used for ...”
- „... and angular speed on the heat generation, while taking into the account the thermal properties of ...” „... bearings by using FEM software ANSYS. Kushwaha [2] focused his study at speed of temperature change in ...” „... bearings. His simulation showed that the increase of speed leads to faster reaching the steady state of ...”
- „... case of high speed and heavy load, thermal and elastic deformation occurs in the face gear drive ...” „... translates leftwards at a velocity of V while the convex TIG rotates at an angular velocity of . The ...” „... axial parameter; s is the angular parameter for a point on involute; s0 is the initial angular ...”
- „... Non-Standard spur gear tooth profiles for improved epicyclic gear system performance in low speed ...” „... improve the performance of epicyclic gear sets specifically for low-speed high-torque operating ...” „... directly dependent on the load carried. Since only low speeds are considered, vibrations and the resulting ...”
- „... angular posi- VDI-Berichte Nr. 2294, 20171532 tion and varies over the angle. Manufacturing variances and ...” „... contributor to the noise as the nominal input speed of about 3000 rpm is very high. IMS Gear has developed ...” „... vibrations are modulated by the periodic impact of the failure that mainly correlates with the turning speed ...”
- „... of globalization – 41 Back ground of the development for high speed automatic hardness tester ...” „... J. Yu, Design and experimental validation on a novel tow 97 L. Yao, speed transmission for ...” „... efficiency for 231 M. Heß helical gear units at moderate speed levels – Indications for possible energy ...”
- „... thickness dev ( m) Angular pos deviation ( m) 1 ‐50 30 2 ‐75 0 3 ‐100 0 4 ‐50 0 5 ‐75 0 ...” „... many factors e.g stiffness in gear contacts and bearings, clearance in bearings, friction, speed etc ...” „... have shown that balancing works well also at different speeds and that the load sharing is worse if ...”
- „... ) Here, T2 is the output torque on the worm wheel shaft, ω1 is the angular velocity of the drive shaft ...” „... rotational speeds at the input and output shaft (4, 9), the temperatures are recorded on several non-moving ...” „... by up to 4 % at an input shaft speed of 1400 min-1. Fig. 3: Comparison of gearbox efficiency for ...”
- „... a contact, whereas thermal power additionally depends on the sliding speed. The generated heat is ...” „... given by Eq. 6. By substituting the high speed Tfl expresions in Eq. 6, one gets commonly used ...” „... gear meshing [11]. Angular position can read falsely due to emission changes. So camera was positioned ...”
- „... assumption can be verified by the test rig results. 2. Introduction For transformation of torque and speed ...” „... and reduced efficiency up to self-locking. A rather unknown alternative angular gear set is a crown ...” „... speed of the motor are recorded. 5.1 Test gear sets The test gear sets are serial gears sets of ...”
- „... cycles will increase due to high-speed applications in combination with longer fatigue lives. Thus, the ...” „... number of load cycles. The pinion speed is n1,1 = 3000 min-1 for the entire test run. The test ...” „... different times during the rolling-motion leads to a change in the angular difference. A critical principal ...”
- „... high speed automatic hardness tester Prof. hc. Dr.-Ing. Aizoh Kubo, Research Institute for ...” „... figure shows the result. The figure here displays in the same angular position as the left figure ...”