Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Akira Namura"'
Publikováno v:
Wear. :303-309
This paper describes the influence of axle load (contact pressure) on the adhesion coefficient of wheel and rail in accordance with the running speed of a vehicle, the surface roughness of wheel/rail and wet conditions created by rain, snow, etc. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e3a7c85240001927bb5e8103a60fe7a
https://doi.org/10.1016/j.wear.2016.05.012
https://doi.org/10.1016/j.wear.2016.05.012
Publikováno v:
Quarterly Report of RTRI. 57:311-317
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ffcf482dd5ea4dd8599601f1486e721
https://doi.org/10.2219/rtriqr.57.4_311
https://doi.org/10.2219/rtriqr.57.4_311
Publikováno v:
Wear. 314:228-235
Lubrication between wheel and rail in curves is generally known to decrease the friction between wheel and rail, resulting in the reduction of wear of wheel flange and rail gauge corner in high rail, corrugation growth in low rail and noise generatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe40ba7ef43e3ae7d223a17f710894e5
https://doi.org/10.1016/j.wear.2013.12.006
https://doi.org/10.1016/j.wear.2013.12.006
Autor:
Makoto Ishida, Akira Namura, Massimiliano Pau, Tsunamitsu Nakahara, Hua Chen, Koan-Sok Baek, Bruno Leban
Publikováno v:
Wear. 271:32-39
This paper describes how to improve the prediction method of the adhesion coefficient by means of the experimentally estimated boundary friction coefficient obtained by two kinds of twin-disc rolling contact machines and the ratio of real contact are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba7edf50d3256c90f640a5e5505ad504
https://doi.org/10.1016/j.wear.2010.10.022
https://doi.org/10.1016/j.wear.2010.10.022
Publikováno v:
Wear. 271:259-267
The experimental research on the wears of wheel and rail has been carried out using a large rolling-sliding contact test machine with the actual profiles of wheel and rail. Primarily, the effects of axle load, the angle of attack, rail hardness and l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6aad222108ae8153682e78b9b63a02c4
https://doi.org/10.1016/j.wear.2010.10.032
https://doi.org/10.1016/j.wear.2010.10.032
Publikováno v:
The Proceedings of the Transportation and Logistics Conference. :211-214
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2711502cfcd3a2ef30f9c213cbadd6ea
https://doi.org/10.1299/jsmetld.2011.20.211
https://doi.org/10.1299/jsmetld.2011.20.211
Publikováno v:
Quarterly Report of RTRI. 52:163-167
Accurately analyzing the propagation of transverse cracking which causes rail failure is important to ensure train operation safety. Crack propagation until now has been analyzed using methods such as the Finite Element Method (FEM). These existing m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d017c8557977d9881e1e525d4df9883
https://doi.org/10.2219/rtriqr.52.163
https://doi.org/10.2219/rtriqr.52.163
Autor:
Akihiro Nakamoto, Shota Miyazaki, Manami Nishida, Takeshi Saito, Masataka Nagao, Akira Namura, Izumi Kishiyama, Katsunori Murakami
Publikováno v:
Analytica Chimica Acta. 661:42-46
A simple, sensitive, and specific method with gas chromatography-mass spectrometry was developed for simultaneous extraction and derivatization of amphetamines (APs) and 3,4-methylenedioxyamphetamines (MDAs) in human urine by using a monolithic silic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c322155a4a7decf7b9894ac5a78e5bd
https://doi.org/10.1016/j.aca.2009.12.013
https://doi.org/10.1016/j.aca.2009.12.013
Publikováno v:
Quarterly Report of RTRI. 51:227-233
In this paper, we report the experimental modal analysis as developed for the 3PR-sleeper and the dynamic response measurement in the existing track in order to clarify the transmission characteristic of a dynamic load to the ballast layer. The resul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e489596c0a5b44f533e67edb8cde5885
https://doi.org/10.2219/rtriqr.51.227
https://doi.org/10.2219/rtriqr.51.227
Publikováno v:
Quarterly Report of RTRI. 49:26-32
Lubrication on sharp curves has been commonly adopted as a method of reducing friction between the wheel flange and rail gauge face to minimize wear and energy consumption. Additionally, lubrication between the running surface of the low rail and whe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e757027f6ce0745fda6db5a6e1c173b
https://doi.org/10.2219/rtriqr.49.26
https://doi.org/10.2219/rtriqr.49.26