Results 81 to 90 of about 210,108 (196)

Two Stage Helical Gearbox Fault Detection and Diagnosis based on Continuous Wavelet Transformation of Time Synchronous Averaged Vibration Signals [PDF]

, 2012
Vibration signals from a gearbox are usually very noisy which makes it difficult to find reliable symptoms of a fault in a multistage gearbox. This paper explores the use of time synchronous average (TSA) to suppress the noise and Continue Wavelet ...
Gu, Fengshou, Ball, Andrew, Zhen, Dong, Wang, T., Gu, F., Zhen, D., Elbarghathi, F., Elbarghathi, Fathalla, Ball, A.   +8 more
core   +1 more source

Planetary Gearbox Fault Diagnosis Using RCMFE and P-t-SNE

Applied Sciences
Aiming at the difficulty of extracting fault features from nonlinear and non-stationary vibration signals of planetary gearboxes, a planetary gearbox fault diagnosis method based on Refined Composite Multiscale Fuzzy Entropy (RCMFE), Parametric-t ...
Lingyun Zhu, Huyan Zhang, Kang Huang, Chuangchuang Cui   +3 more
doaj   +1 more source

Early Fault Diagnosis for Planetary Gearbox Based on Adaptive Parameter Optimized VMD and Singular Kurtosis Difference Spectrum

IEEE Access, 2019
Variational mode decomposition (VMD) is widely used in the condition monitoring and fault diagnosis of rotary machinery for its unique advantages. An adaptive parameter optimized VMD (APOVMD) is proposed in order to adaptively determine the suitable ...
Chaoge Wang, Hongkun Li, Gangjin Huang, Jiayu Ou   +3 more
doaj   +1 more source

PLANETARY GEARBOX 5R1

Revista Inclusiones
The invention relates to transport engineering, transport machines transmission, ground-based transportation system including transport-process machines, automobiles, tractors, etc. The transmission unit currently used in domestic and foreign automobiles - the gearboxes with stepwise change of gear ratios - are characterized by the volumetric sizes and
Gorshkova, Oksana, Nekrasov, Vladimir
openaire   +1 more source

Research of the Two-stage Planetary Level Parallel Axis Structure of Wind Power Gearbox Assembly Technology

Jixie chuandong, 2015
Wind power gearbox assembly process quality has a decisive influence on the wind power gearbox assembly quality,it has important significance for improving the reliability of wind power gearbox.Aiming at the three assembly process difficulties problems ...
Zou Junwei, Huang Junqiong, You Jing
doaj  

Example Case of a High-Speed Gearbox Concept for E-Mobility with a Sequentially Phased Planetary Stage Focusing on NVH Measurements

Machines
The increasing performance requirements of electric vehicle powertrains demand lightweight, efficient, and low-noise transmission systems. High-speed electric drive unit concepts offer significant potential for reducing motor size and mass by shifting ...
Alex Ueberbacher, Andreas Auer, Stefan Sendlbeck, Michael Otto, Karsten Stahl   +4 more
doaj   +1 more source

Modeling for design simplification and power-flow efficiency improvement in an automotive planetary gearbox: A case example [PDF]

FME Transactions, 2020
An approach for design simplification and improvement in power-flow efficiency of an automotive planetary gearbox is presented in this article. Integrated CAD-CAE model, formed on stick diagram representation of geartrain operation, is developed for ...
Tamada Sireesha, Chandra Manish, Patra Prasenjit, Mandol Sourabh, Bhattacharjee Debraj, Dan Pranab K.   +5 more
doaj  

Application of Reassigned Wavelet Scalogram in Wind Turbine Planetary Gearbox Fault Diagnosis under Nonstationary Conditions

Shock and Vibration, 2016
Wind turbine planetary gearboxes often run under nonstationary conditions due to volatile wind conditions, thus resulting in nonstationary vibration signals. Time-frequency analysis gives insight into the structure of an arbitrary nonstationary signal in
Xiaowang Chen, Zhipeng Feng
doaj   +1 more source

Fault Diagnosis of Planetary Gearbox Based on Dynamic Simulation and Partial Transfer Learning. [PDF]

Biomimetics (Basel), 2023
Song M, Xiong Z, Zhong J, Xiao S, Ren J.
europepmc   +1 more source

Research on fault diagnosis method of planetary gearbox based on dynamic simulation and deep transfer learning. [PDF]

Sci Rep, 2022
Song MM, Xiong ZC, Zhong JH, Xiao SG, Tang YH.   +4 more
europepmc   +1 more source