Results 21 to 30 of about 54,143 (228)

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

open access: yesJixie 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   +5 more
doaj  

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

open access: yesIEEE 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

Capturing, classification and concept generation for automated maintenance tasks [PDF]

open access: yes, 2014
Maintenance is an efficient and cost effective way to keep the function of the product available during the product lifecycle. Automating maintenance may drive down costs and improve performance time; however capturing the necessary information required ...
Farnsworth, Michael, Tomiyama, Tetsuo
core   +1 more source

Determination of the combined vibrational and acoustic emission signature of a wind turbine gearbox and generator shaft in service as a pre-requisite for effective condition monitoring [PDF]

open access: yes, 2013
This is the post-print version of the final paper published in Renewable Energy. The published article is available from the link below. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and ...
Asanka Perera   +13 more
core   +1 more source

Study on the flow field and structural stress field of the primary retarder considering the throttling characteristics of the valve

open access: yesAdvances in Mechanical Engineering
The valve plays an important role in the control of the filling rate ( q fill ) and braking characteristics of the hydrodynamic retarder (HR). However, the dynamic throttling characteristics of the valve were rarely considered in previous studies ...
Huanhui Zhou   +4 more
doaj   +1 more source

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

open access: yesActuators, 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

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

Physical Intelligence in Small‐Scale Robots and Machines

open access: yesAdvanced Materials, EarlyView.
“Physical intelligence” (PI) empowers biological organisms and artificial machines, especially at the small scales, to perceive, adapt, and even reshape their complex, dynamic, and unstructured operation environments. This review summarizes recent milestones and future directions of PI in small‐scale robots and machines.
Huyue Chen, Metin Sitti
wiley   +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

Contribution analysis of vibration transmission path of planetary reducer box based on velocity involvement loss

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2023
Planetary reducer box undertakes the vibration transmitted from gear transmission system to bearing, and further transmits the vibration to the base. Research on the transmission path contribution of reducer box has an important guiding role in reducing ...
Miaomiao Li   +5 more
doaj   +1 more source

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