Results 21 to 30 of about 16,307 (194)

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

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

Fully 3D‐Printed Wave‐Wound Electromagnetic Motors

open access: yesAdvanced Materials Technologies, EarlyView.
This work presents the first fully 3D‐printed wave‐wound electromagnetic motors, which are created using conductive nanoparticle inks, carbon‐filled nylon polymers, and surface mount components. These motors can achieve a stall torque of 7.62N·mmA−1$7.62 \nobreakspace N{\cdot }mm A^{-1}$ and efficiency of 28.2 %, which approaches the performance of ...
Joseph Schwalbe   +4 more
wiley   +1 more source

A General Regression Neural Network Model for Gearbox Fault Detection using Motor Operating Parameters

open access: yes, 2012
Condition monitoring of a gearbox is a very important activity because of the importance of gearboxes in power transmission in many industrial processes.
Gu, Fengshou   +11 more
core   +1 more source

Fabrication of a test rig for gearbox fault simulation and diagnosis

open access: yes, 2023
Gearboxes are one of the most important and widely exposed to different types of faults in machines. Therefore, manufacturers and researchers have made significant efforts to develop different fault detection and diagnostic approaches for gearboxes ...
Jaber, Alaa Abdulhady   +3 more
core   +1 more source

Hard‐Magnetic Soft Millirobots in Underactuated Systems

open access: yesAdvanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang   +4 more
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

Gait Analysis of Pak Biawak: A Necrobot Lizard Built using the Skeleton of an Asian Water Monitor (Varanus Salvator)

open access: yesAdvanced Robotics Research, EarlyView.
Pak Biawak, a necrobot, embodies an unusual fusion of biology and robotics. Designed to repurpose natural structures after death, it challenges conventional boundaries between nature and engineering. Its movements are precise yet unsettling, raising questions about sustainability, ethics, and the untapped potential of biointegrated machines.
Leo Foulds   +2 more
wiley   +1 more source

Research on Vibration and Noise Coupling Characteristics of Bogie Gearboxes for Metro Vehicles

open access: yesJixie chuandong, 2023
Aiming at the common key issues for gearbox vibration and noise, a certain type of subway car bogie gearbox has been regarded as the research object.
Ni Jinshang
doaj  

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