Results 11 to 20 of about 16,307 (194)

Fault early warning of wind turbine gearbox based on multi‐input support vector regression and improved ant lion optimization

Wind Energy, 2021
Gearbox oil temperature is one of the important indicators for gearbox condition monitoring and faults early warning. Accurately predicting the gearbox oil temperature change trend can maintain the gearbox in advance and ensure the safety and reliability
Yanjun Yang, Aimin Liu, Hongwei Xin, Jianguo Wang   +3 more
doaj   +1 more source

Water stress: Opportunities for supply chain research

Production and Operations Management, EarlyView., 2023
Abstract Driven by climate change and overuse, water stress is a worsening sustainability concern that threatens businesses and communities across the globe. Leading global organizations such as the United Nations have expressed an urgent need for sustainable water management strategies across nations and economies.
Dustin Cole, Sriram Narayanan, Elizabeth Connors, Meenu Tewari, Kyle Onda   +4 more
wiley   +1 more source

Vibrodiagnostics Used for Evaluating the Technical Condition of a Mechanical Gearbox

MATEC Web of Conferences, 2018
The aim of this article is to evaluate the technical condition of a mechanical four-speed gearbox tightly connected to a mechanical two-speed auxiliary gearbox placed in an off-road vehicle.
Furch Jan, Stodola Jiří, Glos Josef
doaj   +1 more source

Amplitude of probability density function (APDF) of vibration response as a robust tool for gearbox diagnosis [PDF]

, 2012
A ‘Go' or ‘No Go' assessment is a safety requirement for quick and robust estimation of the condition of gearboxes used in helicopters and other critical machines.
Edwards, R., Sinha, J. K., Rzeszucinski, P. J., Starr, Andrew G., Allen, B., Starr, A., Sinha, J. K.; id_orcid, Edwards, Rodger   +7 more
core   +1 more source

Dynamic Reliability Evaluation of High-Speed Train Gearbox Based on Copula Function

IEEE Access, 2022
As a key component of the high-speed train transmission system, the reliability of the gearbox directly affects the reliability and driving safety of the high-speed train.
Yumei Liu, Yun Chen
doaj   +1 more source

Study on On-line Detection Method of Heavy Duty Truck Gearbox Assembly Quality based on Wavelet Analysis

Jixie chuandong, 2021
In order to determine the assembly quality of a certain type of gearbox， the common assembly faults of gearbox are briefly introduced based on the internal structure of gearbox， the characteristics frequencies of common faults of each gear and bearing in
Zheng Zou, Rupeng Cao, Qing Qu, Zhezhan Tang, Kangqu Zhou, Wei Chen   +5 more
doaj  

Modeling of Wind Turbine Gearbox Mounting [PDF]

Modeling, Identification and Control, 2011
In this paper three bushing models are evaluated to find a best practice in modeling the mounting of wind turbine gearboxes. Parameter identification on measurements has been used to determine the bushing parameters for dynamic simulation of a gearbox ...
Morten K. Ebbesen, Morten Haastrup, Michael R. Hansen   +2 more
doaj   +1 more source

An automated methodology for performing time synchronous averaging of a gearbox signal without speed sensor [PDF]

, 2007
In this paper we extend a sensorless algorithm proposed by Bonnardot et al. for angular resampling of the acceleration signal of a gearbox submitted to limited speed fluctuation.
Gelman, Leonid, Combet, Francois
core   +1 more source

Vibration Performance of Traction Gearbox of a High-Speed Train: Theoretical Analysis and Experiments

Actuators, 2023
The gearbox is the key component of the traction drive system of a high-speed train. At the same time, the traction gearbox can easily experience a box housing failure due to bearing internal excitation from gear meshing and external excitation from ...
Wangang Zhu, Hao Lin, Wei Sun, Jing Wei
doaj   +1 more source

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

, 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