Results 11 to 20 of about 8,052 (227)

Planetary Gearbox Prototype Development and Manufacturing

open access: yesTehnički glasnik, 2021
Goal of this research was to develop and manufacture planetary gearbox prototype using rapid prototyping technology (additive manufacturing). Developed prototype was used to visually analyse the design of the planetary gearbox. Also, it was used to improve and innovate education of students on several courses at Mechanical Design study program at ...
Smajic, Jasmin   +4 more
openaire   +4 more sources

Acoustic signal analysis of the resonance frequency region for planetary gearbox fault diagnosis based on high-order synchrosqueezing transform

open access: yes工程科学学报, 2020
Planetary gearboxes have one or several planet gears rotating around the sun gear while revolving along their axle. This unique gear structure results in the simultaneous meshing of the planet gear with both sun and ring gears.
Zheng-wu ZHANG   +2 more
doaj   +1 more source

Numerical simulation of time-invariant error and its effect on planetary gearbox dynamics

open access: yesMATEC Web of Conferences, 2018
Planetary gearbox is used in high precision applications such as robotic arm, control system of antenna, positioning and radar tracking systems. Planetary gearbox have high torque-to-weight ratio, high degree of control over the speed range and better ...
Venkataram Nithin   +2 more
doaj   +2 more sources

Fault diagnosis of planetary gearbox based on multi-information fusion and convolutional neural network

open access: yesGong-kuang zidonghua, 2022
The fault diagnosis method of planetary gearbox based on machine learning relies on the artificial selection of the eigenvectors. The quality of eigenvectors selection largely determines the accuracy of the diagnosis method.
SHI Zhiyuan, TENG Hu, MA Chi
doaj   +1 more source

Diagnosis of Combination Faults in a Planetary Gearbox using a Modulation Signal Bispectrum based Sideband Estimator [PDF]

open access: yes, 2015
This paper presents a novel method for diagnosing combination faults in planetary gearboxes. Vibration signals measured on the gearbox housing exhibit complicated characteristics because of multiple modulations of concurrent excitation sources, signal ...
Abdallaa, Gaballa M.   +5 more
core   +1 more source

Multi-Body Dynamics Modeling and Analysis of Planetary Gearbox Combination Failure Based on Digital Twin

open access: yesApplied Sciences, 2022
Existing studies on the dynamic characteristics of planetary gearboxes are generally based on traditional modeling methods. The models were idealized because of various uncertain factors that affect the dynamic characteristics of the planetary gearbox ...
Daoyong Zhu, Zhinong Li, Niaoqing Hu
doaj   +1 more source

Pitting damage levels estimation for planetary gear sets based on model simulation and grey relational analysis [PDF]

open access: yes, 2011
The planetary gearbox is a critical mechanism in helicopter transmission systems. Tooth failures in planetary gear sets will cause great risk to helicopter operations.
Cheng, Zhe   +3 more
core   +1 more source

Study on order analysis for condition monitoring wind turbine gearbox [PDF]

open access: yes, 2014
A complex 3-stage gearbox design, in which one planetary gear set at first stage and two sets of parallel gears at second and third stage, is conventionally applied on the large wind turbine configuration with Doubly Fed Induction Generator.
Feng, Yanhui   +4 more
core   +1 more source

Planetary Gearbox Vibration Signal Characteristics Analysis and Fault Diagnosis

open access: yesShock and Vibration, 2015
Planetary gearboxes are widely used in helicopters, wind turbines, mining machinery, and so forth. The structure and motion type of a planetary gearbox are more complex in comparison with a fixed-shaft one, which makes condition monitoring and fault ...
Qiang Miao, Qinghua Zhou
doaj   +1 more source

A Study on the Integration of a High-Speed Flywheel as an Energy Storage Device in Hybrid Vehicles [PDF]

open access: yes, 2010
The last couple of decades have seen the rise of the hybrid electric vehicle as a compromise between the outstanding specific energy of petrol fuels and its low-cost technology, and the zero tail-gate emissions of the electric vehicle.
Martinez-Gonzalez, Pablo   +1 more
core   +1 more source

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