Results 51 to 60 of about 5,775 (233)
Magnetic compliant suspension concept for space robotics [PDF]
This paper proposes a Dual-Magnet Magnetic Compliance Unit (DMCU) for use in medium sized space rover platforms to enhance terrain handling capabilities and speed of traversal.
McKee, Gerard, Parfitt, Maxwell
core
Sliding‐Mode Control of Electromagnetic Suspension Systems Considering Disturbance Compensation
This study proposes an integrated control strategy for magnetic levitation systems, combining a cascaded linear extended state observer with an improved sliding‐mode control. This method accurately estimates and compensates for disturbances, significantly enhancing suspension stability and rejection capability.
Hailin Hu +4 more
wiley +1 more source
Research on the Vibration Insulation of High-Speed Train Bogies in Mid and High Frequency
According to a large amount of the test data, the mid and high frequency vibrations of high-speed bogies are very notable, especially in the 565~616 Hz range, which are just the passing frequencies corresponding to the 22nd to 24th polygonal wear of the ...
Jia Liu, Xuesong Jin
doaj +1 more source
Dynamics of railway freight vehicles [PDF]
This paper summarises the historical development of railway freight vehicles and how vehicle designers have tackled the difficult challenges of producing running gear which can accommodate the very high tare to laden mass of typical freight wagons whilst
A. Orlova +21 more
core +1 more source
Reinforcement for Fatigue Fracture of Welded Bogie Frames
We consider the position and thickness of reinforcement with respect to fatigue fracture of welded bogie frames and propose an appropriate reinforcement method for many cases. The bogie frame is usually designed in accordance with JIS and KS, and operates under harsh load conditions: dynamic loads g...
Deuk-Yul Jang, Hyung-Yong Jeon
openaire +2 more sources
Fatigue strength analysis of bogie frames under random loads [PDF]
In this study, a method for analyzing the fatigue strength of a bogie frame under a random load was proposed. Based on the geometric features, a welded joint coordinate system was established to compute the stress components of each node in this coordinate system.
Qi An, Hua Zhao, Peihai Li, Maohai Fu
openaire +2 more sources
A deep learning framework integrated with a 2D train track bridge simulation model is developed to classify corrugation and ballast faults from vibration signals using time frequency analysis. The method achieves high accuracy and supports predictive maintenance for railway infrastructure.
Shahzor Memon +6 more
wiley +1 more source
On multi-objective optimization of planetary exploration rovers applied to ExoMars-type rovers [PDF]
ExoMars is the first robotic mission of the Aurora program of the European Space Agency (EAS). Surface mobility (as provided by ExoMarks rover) is one of the enabling technologies necessary for future exploration missions.
Leite, Alexandre Carvalho
core
Viscoroute 2.0: a tool for the simulation of moving load effects on asphalt pavement [PDF]
As shown by strains measured on full scale experimental aircraft structures, traffic of slow-moving multiple loads leads to asymmetric transverse strains that can be higher than longitudinal strains at the bottom of asphalt pavement layers.
Chabot, Armelle +3 more
core +5 more sources
Carbody chattering in high‐speed electric multiple units (EMUs), induced by the coupling between bogie hunting motion and the carbody diamond‐shaped mode, severely affects ride comfort and operational safety. Real‐time monitoring of its evolution remains challenging due to the difficulty in accurately distinguishing among the nonchattering, incubation,
Xin Deng +5 more
wiley +1 more source

