Amplitude modulations in planetary gears
ABSTRACTA planetary gear set introduces complicated gear vibration frequency structures, especially in sequentially phased planetary gear sets. Frequency components from a fixed sensor can be enhanced and/or canceled with different planets and ring gear configurations.
Huageng Luo +7 more
openaire +2 more sources
Analysis of Time–Varying Mesh Stiffness for the Planetary Gear System with Analytical and Finite Element Methods [PDF]
In dynamic model of planetary gears, one of the key design parameters and one of the main sources of vibration is time–varying mesh stiffness of meshing gears.
Ali Shahabi, Amir Hosein Kazemian
doaj +1 more source
A Study on the Load Sharing among Planet Gears according to the Phase of Carrier Pinhole Position Error in the Planetary Gearbox [PDF]
The planetary geartrain can be reduced in size and weight, and has excellent durability since the input torque is divided by the number of planet gears when the power is transmitted. In order to improve its durability, the load sharing among planet gears
Jeong Gil Kim +4 more
doaj +1 more source
Dynamic modeling and analysis of high-speed flexible planetary gear transmission systems
Modern planetary gear transmissions are often made with flexible components and operated at high or varying speed. Despite advances in understanding their dynamic performance, they remain vulnerable to problems leading—in some cases—to subsequent system ...
Changzhao Liu +4 more
doaj +1 more source
Acoustic intensity technique applied to monitor planetary gears
Condition monitoring of gear trains by classic techniques based on vibrations and/or extensometry measurements requires the preparation of the sensor contact surfaces and the cables installation.
Pablo García Fernández +4 more
semanticscholar +1 more source
Optimization of planetary gear of onboard gearbox using the method of differential evolution [PDF]
Problem. Further modernization of combat vehicles, associated with the installation of additional equipment, requires the use of more powerful engines, which leads to increased loads on parts and components of the onboard gearbox.
Klitnoy Viktor +2 more
doaj +1 more source
DESIGN FOR A BI-PLANETARY GEAR TRAIN [PDF]
The article presents the design for a bi-planetary gear train. The project description is supplemented with calculations of kinematics, statics and meshing efficiency of the gear wheels included in the gear train.
Józef DREWNIAK +2 more
doaj +1 more source
Mathematical Modeling and Dynamic Analysis of Planetary Gears System with Time-Varying Parameters
Planetary gears are widely used in automobiles, helicopters, heavy machinery, etc., due to the high speed reductions in compact spaces; however, the gear fault and early damage induced by the vibration of planetary gears remains a key concern.
Z. Xiao, Jinxin Cao, Yinxin Yu
semanticscholar +1 more source
Effects of Tooth Breakage Size and Rotational Speed on the Vibration Response of a Planetary Gearbox
A nonlinear dynamic model for a planetary gearbox with tooth breakage fault is built based on an improved rigid multibody model, and the effects of tooth breakage size and rotational speed on the vibration response of the planetary gearbox are ...
Wenguang Yang, Dongxiang Jiang, Te Han
doaj +1 more source
Gradual development of S-shaped gears [PDF]
Search for an improved gear tooth flank shape arose from heavy industry problems rolling mills. Original involute gears suffered severe flank damages.
Hlebanja Gorazd
doaj +1 more source

