Results 21 to 30 of about 2,040 (175)

Dynamic of Friction Coupling Independently Rotating Wheels for High Speed

Shock and Vibration, 2017
A new lateral coupling structure with independently rotating wheels (IRW) is proposed, and longitudinal creepage is obtained by replacing the gear pair with the friction pair to synchronize the rotation speed of left and right wheels.
Yan Shi, Miao Li, Weihua Ma, Kang Chen
doaj   +1 more source

Stair‐Climbing Wheelchairs for Enhanced Mobility: A Comprehensive Review of Fundamental Mechanisms, Design Concepts, and Performance Analysis

Journal of Field Robotics, EarlyView.
ABSTRACT People with physical disabilities face significant mobility challenges while climbing uneven surfaces and staircases. In these circumstances, traditional wheelchairs do not provide stable, safely controlled mobility, underscoring the importance of building superior stair‐climbing wheelchairs for both medical and infrastructure purposes.
Gopisetti Manikanta, S. M. Abhinandan, Anand Reddy, G. Chandana, Divya, P. Anil Kumar, Ch. Venkata Rao, Ashish Garg, Ravi C. Soni, Jogendra Kumar, Bhargav Akkinepally   +10 more
wiley   +1 more source

Condition Monitoring of the Dampers in the Railway Vehicle Suspension Based on the Vibrations Response Analysis of the Bogie

Sensors, 2022
This paper investigates the possibility of developing a new method for fault detection of a damper in the primary suspension of the railway vehicle, based on the analysis of the vertical vibration’s response of the bogie.
Mădălina Dumitriu
doaj   +1 more source

Multi‐level fatigue reliability assessment of reinforced concrete railway bridges

Structural Concrete, EarlyView.
Abstract This paper presents a multi‐level reliability framework for assessing the fatigue life of reinforced concrete (RC) railway trough bridges subjected to cyclic loading. The framework incorporates increasing levels of analytical complexity and real‐world data in four steps. First, an analytical model applies S–N curves and the Palmgren–Miner rule
Silvia Sarmiento, Jaime Gonzalez‐Libreros, Chao Wang, Lennart Elfgren, Ola Enoksson, Tommy Höjsten, Lars‐Olof Andersson, Gabriel Sas   +7 more
wiley   +1 more source

Hunting Stability Enhancement of a Train Bogie Employing Inerter-Based Suspension Mechanism

Shock and Vibration
The bogie hunting instability may occur in the train traveling process, which has an important effect on the train operation safety and passenger ride quality.
Yong Wang, Chenyang Hong, Haodong Meng
doaj   +1 more source

Direct evidence implicating the asymmetrical dimethylarginine (ADMA)‐dimethylarginine dimethylaminohydrolase 1 (DDAH1) pathway in cerebrovascular dysfunction and stroke pathogenesis in mice

British Journal of Pharmacology, EarlyView.
Abstract Background and Purpose Asymmetrical dimethylarginine (ADMA) is an endogenous inhibitor of nitric oxide synthase (NOS), whereas dimethylaminohydrolase 1 (DDAH1) is primarily responsible for its metabolism. However, the roles of DDAH1 in cerebrovascular regulation are poorly understood. Furthermore, despite evidence that elevated ADMA levels are
Arun Flynn, Alexandra Riddell, Ashton Bernard, Jennifer Haggarty, Stefan Weidt, Jawza Alenazi, Erika Trabold, Delyth Graham, Laura B. Dowsett, James Leiper, Alyson A. Miller   +10 more
wiley   +1 more source

Simulation Analysis and Experimental Investigation for a Welding Bogie Frame

机车电传动, 2020
The structure of a new welding bogie and the material selection of bogie frame were introduced, and the finite element analysis and strength test were made for the bogie frame based on the EN 13749—2011 standard.
Chao LI, Huidong SUN, Zhiyong LI, Jingbo LIU, Wei ZHENG, Mengke YANG   +5 more
doaj  

A study of lateral-force estimation equation focusing on moment of a train bogie

Nihon Kikai Gakkai ronbunshu, 2016
When railway vehicles pass through a sharp curve, yaw moment is generated at the bogie. This condition affects the increase of the lateral force of the outside wheel of the front axle of the leading bogie, which is important factor for assessing the ...
Takayuki TANAKA, Hisayo DOI, Takefumi MIYAMOTO, Hitoshi IIJIMA   +3 more
doaj   +1 more source

The Evolution of Autonomous Systems for Planetary Cave Exploration: A Review

Journal of Field Robotics, Volume 43, Issue 6, Page 4094-4115, September 2026.
ABSTRACT The exploration of Subsurface Access Points (SAPs), such as lava tubes on the Moon and Mars, has gained significant interest due to their potential as stable environments shielded from surface radiation and temperature extremes. These sites are considered high‐value targets for detecting water and signs of ancient life, and assessing their ...
Sarah Swinton, Daniel Mitchell, Jamie Blanche, Euan McGookin, David Flynn   +4 more
wiley   +1 more source

Performance evaluation of bogie brake rigging in a freight car at various stages of brake blocks and wheels wear

Вестник Научно-исследовательского института железнодорожного транспорта, 2015
This research aims to evaluate compliance of reference parameters in a bogie brake rigging with guideline values throughout the whole range of possible brake blocks and wheels wear values permissible for operation.
S. V. Tuluzin, D. V. Gorskiy
doaj   +1 more source