Results 61 to 70 of about 943 (177)

Planetary Gearbox Fault Diagnosis Using Envelope Manifold Demodulation

open access: yesShock and Vibration, 2016
The important issue in planetary gear fault diagnosis is to extract the dependable fault characteristics from the noisy vibration signal of planetary gearbox.
Weigang Wen   +2 more
doaj   +1 more source

Fault Diagnosis of Planetary Gearbox Based on Motor Current Signal Analysis

open access: yesShock and Vibration, 2020
Planetary gearbox is one of the most widely used core parts in heavy machinery. Once it breaks down, it can lead to serious accidents and economic loss.
Ziyuan Jiang, Qinkai Han, Xueping Xu
doaj   +1 more source

Experimental Analysis and Physics‐Based Analytical Model on Twisted and Coiled Artificial Muscles

open access: yesAdvanced Engineering Materials, Volume 28, Issue 2, 21 January 2026.
Twisted and coiled artificial muscles made from silver‐coated nylon fibers are investigated through experiments and analytical modeling. The actuators achieve contractions up to 19.3% and specific work of 8 kJ kg−1, though efficiency remains limited (≈0.15%) by thermal losses.
Salvatore Garofalo   +3 more
wiley   +1 more source

Design of a Mechanical Power Circulation Test Rig for a Wind Turbine Gearbox

open access: yesApplied Sciences, 2020
We developed a mechanical power circulation test rig for a wind turbine gearbox with a power rating of 5.8 MW or less. The test rig consists of an electric motor, two auxiliary gearboxes, a torque-applying device, lubrication systems, cooling systems ...
Geun-Ho Lee   +4 more
doaj   +1 more source

Sustainable Energy Management in Islanded Microgrids via HHO–BE Tuned Adaptive Controllers and Demand‐Side Flexibility

open access: yesEngineering Reports, Volume 8, Issue 1, January 2026.
This research presents a novel approach to frequency control in isolated hybrid microgrids by developing an adaptive fractional‐order PI controller. The controller is optimized using the Harris Hawks Optimization algorithm, enhanced with the Balloon Effect (HHO + BE), to ensure high precision and adaptability.
Mohamed Tarek Mohamed   +8 more
wiley   +1 more source

Application of GA-ACO Optimized BP Neural Network in Fault Diagnosis of Planetary Gearbox

open access: yesJixie chuandong, 2021
Aiming at the problems of low fault recognition rate, slow convergence speed and difficult parameter selection in the process of fault diagnosis of planetary gearbox based on BP neural network improved by optimization algorithm, a GA-ACO algorithm is ...
Chang Gao, Zhongqing Yu, Qiang Zhou
doaj  

Intelligent Fault Diagnosis for Laboratory Equipment

open access: yesElectronics Letters, Volume 62, Issue 1, January/December 2026.
ABSTRACT Traditional laboratory management relies heavily on manual oversight and static threshold‐based fault diagnostics, which are inadequate for addressing the dynamic, individualised needs of contemporary environments. To address these challenges, we proposed an intelligent laboratory management framework, designed to enable secure and autonomous ...
Chaoqun Zheng   +6 more
wiley   +1 more source

Fault Diagnosis of Small Sample Automobile Planetary Gearboxes Based on Continuous Wavelet Transform and Model Agnostic Meta Learning

open access: yesJixie chuandong, 2022
Aiming at the problem that the vibration signal of planetary gearboxes has strong non-stationary characteristics, few fault samples and the dependence of traditional deep learning on data, an intelligent diagnosis method for planetary gearboxes based on ...
Xinxin Lu, Jun Ma, Yingcong Zhang
doaj  

Autonomous Delivery Vehicles for Cross‐Line and Cross‐Station Logistics in the Shenzhen Metro: Implementation and Validation

open access: yesIET Intelligent Transport Systems, Volume 20, Issue 1, January/December 2026.
This article presents a metro‐based cross‐station delivery system utilizing autonomous delivery vehicles (ADVs) in the Shenzhen Metro, validated through simulation and real‐world deployment across five stations. The system integrates multi‐sensor fusion, YOLOv11s object detection and Voronoi‐guided A* path planning with PID–MPC control to enable robust
Wenbin Cao   +4 more
wiley   +1 more source

Fault Analysis and Structural Improvement Design of Planetary Gear in Wind Turbine Gearbox

open access: yesJixie chuandong, 2019
Focusing on planetary gear fault of traditional NGW type wind turbine gearbox, the fault analysis in the process of using is carried out, finding out why the planetary gear is damaged and an improved design of transmission structure for wind turbine ...
Yonghong Li
doaj  

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