Results 1 to 10 of about 5,355 (265)

Development and Experimental Validation of a Physics-Based Digital Twin for Railway Freight Wagon Monitoring [PDF]

Sensors
The development of digital twins for railway freight vehicles represents a key step toward more efficient, data-driven maintenance and safety assessment.
Alessio Cascino, Leandro Nencioni, Laurens Lanzillo, Francesco Mazzeo, Salvatore Strano, Mario Terzo, Simone Delle Monache, Enrico Meli   +7 more
doaj   +2 more sources

Study on the improvement of running safety of railway vehicles with yaw damper during an earthquake

Nihon Kikai Gakkai ronbunshu, 2021
After the Mid Niigata Prefecture Earthquake in 2004, research and development of earthquake countermeasures has started for Shinkansen trains. Some technologies for improving running safety of the Shinkansen trains during an earthquake have been applied ...
Kohei IIDA, Masahito KUZUTA, Yukio NISHIYAMA, Hiroyuki KANEMOTO, Daichi NAKAJIMA   +4 more
doaj   +1 more source

Verification of Longitudinal Level Irregularity Suppression Effect at the Structural Boundary by Ballasted Ladder Track

Applied Sciences, 2022
The ladder sleeper, which is a type of longitudinal sleeper with long beams in the longitudinal direction of the rail, was developed for the maintenance-labor saving of ballast tracks.
Tsutomu Watanabe, Keiichi Goto, Kodai Matsuoka, Shintaro Minoura   +3 more
doaj   +1 more source

Investigation of Load Environment and Bending Load Capacities of Aged Prestressed Concrete Sleepers

Applied Sciences, 2023
In this study, field measurements of the bending moments of prestressed concrete (PC) sleepers installed on commercial lines were obtained, and numerical analyses to identify the effects of different parameters on their bending moments were conducted ...
Tsutomu Watanabe, Keiichi Goto, Shintaro Minoura   +2 more
doaj   +1 more source

Railway transition curves – optimization and assessment [PDF]

Archives of Civil Engineering, 2022
This article relates to optimization and assessment of railway polynomial transition curves. The search for the optimum shape meant here the evaluation of the transition curve properties based on chosen dynamical quantity and generation of such a curve ...
Krzysztof Zboinski, Piotr Woznica
doaj   +1 more source

A study on the countermeasure method for gauge corner cracking by applying the worn profiles of rail

Nihon Kikai Gakkai ronbunshu, 2022
In Japanese railway networks, the gauge corner cracking (GCC) occurs to the head hardened rail of the high rail in curved sections of R600 to R800m. In case of the GCC propagates deeply, it will be a possibility of causes rail broken.
Masahiro TSUJIE, Masayoshi OKITA, Hua CHEN, Yoshiaki TERUMICHI   +3 more
doaj   +1 more source

Optimum railway transition curves for different circular arc radii [PDF]

Archives of Civil Engineering, 2022
This article concerns assessing the dynamical properties and shape optimization of railway transition curves (TCs) for the wide range – 600, 900, 1200, 2000, 3000, and 4000 m – of circular arc radii.
Krzysztof Zboinski, Piotr Woznica
doaj   +1 more source

Proposal of the rail profile selection method to reduce gauge corner cracking initiation by mitigating contact conditions of wheel and rail

Nihon Kikai Gakkai ronbunshu, 2022
The gauge corner cracking (GCC) occurs on heat treated rails of the high rail in curved sections with a radius of 600 to 800m. In case of GCC propagates deeply, it may cause rail breakage.
Masahiro TSUJIE, Tomoki KUSHIJIMA, Masaharu KONO, Yoshiaki TERUMICHI   +3 more
doaj   +1 more source

Estimation method of lateral vibration acceleration of car body used for safety evaluation of railway vehicles against crosswind

Nihon Kikai Gakkai ronbunshu, 2023
The critical wind speed of overturning is one of indices for the safety evaluations of railway vehicles against crosswind. The critical wind speed of overturning is defined as the wind speed when wheel loads on the upwind side becomes zero, and is often ...
Hiroyuki KANEMOTO, Yu HIBINO
doaj   +1 more source

Experimental Validation of Non-Marker Simple Image Displacement Measurements for Railway Bridges

Applied Sciences, 2021
Simple bridge displacement measurement using a video camera is effective in realizing the efficient management of numerous railway structures via condition-based maintenance.
Kodai Matsuoka, Fumiaki Uehan, Hiroya Kusaka, Hikaru Tomonaga   +3 more
doaj   +1 more source