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Akademický článek

Effects of fermented and unfermented aging corn on ruminal fermentation, bacterial communities, lactation performance and plasma metabolites in Holstein cows

Autor: X.L. Wang, G.N. Zhang, Y.S. Ma, Y.Q. Wang, J.Z. Lv, G.Z. Feng, M.T. Lambo, Y.G. Zhang

Publikováno v: Animal, Vol 18, Iss 10, Pp 101176- (2024)

Aging reduces the nutritional value of corn grain, which may be improved by fermentation prior to use. This study investigated the effects of replacing conventional corn (CC) with aging corn (AC) and fermented aging corn (FAC) in the diets of lactati

Externí odkaz: https://doaj.org/article/0fc69e1f2e90440b9aa3c114e316b694

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Akademický článek

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Effect of the axlebox arrangement of the bogie and the primary suspension parameters on the rail corrugation at the sharp curve metro track

Autor: Xin Zhao, B. W. Wu, Q. Zhu, X. Kang, Chen Guangxiong, J.Z. Lv

Publikováno v: Wear. :1828-1836

Rail corrugation is a problem that have perplexed the researchers and administrators in railway engineering for many decades with complex formation mechanism and various affecting factors. In this paper, two finite element models includes the track s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0f6bf1a1d0843e489a1577d0e2ffd731
https://doi.org/10.1016/j.wear.2019.01.038

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Study on the mechanism for the wheel polygonal wear of high-speed trains in terms of the frictional self-excited vibration theory

Autor: J.Z. Lv, Q. Zhu, S. Zhang, B. W. Wu, Xin Zhao, Chen Guangxiong

Publikováno v: Wear. :1820-1827

In the paper, the frictional self-excited vibration of a wheelset-track system caused by the saturated wheel-rail creep force is proposed as a possible mechanism for wheel polygonal wear of high-speed trains. The wheelset-track system model is establ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::519af2aae99900a577cf9e60e23bad14
https://doi.org/10.1016/j.wear.2019.01.020

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Effect of the braking pressure variation on disc brake squeal of a railway vehicle: Test measurement and finite element analysis

Autor: Y. He, Xinbiao Xiao, Q. Zhu, Chen Guangxiong, J.Z. Lv

Publikováno v: Wear. :1788-1796

In order to suppress or eliminate brake squeal of light rail trains, a field test measurement and a finite element analysis of disc brake squeal were carried out. In the field test measurement, the braking air pressure, speed of the axle, vibration a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::570d05d1385fa044887c42b0acae6bca
https://doi.org/10.1016/j.wear.2018.12.051

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Effect of the unstable vibration of the disc brake system of high-speed trains on wheel polygonalization

Autor: QF Qiao, J.Z. Lv, XN Zhao, Huajiang Ouyang, Q Zhu, BW Wu, GX Chen

Publikováno v: PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART F-JOURNAL OF RAIL AND RAPID TRANSIT

This paper conducts a detailed investigation into the formation mechanism of wheel polygonalization in high-speed trains and its influence factors through numerical simulation. A finite element model including two rails, one wheelset, and three disc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba88232133eeb1639c27682f071472e6
https://doi.org/10.1177/0954409719833787

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Generation mechanism and remedy method of rail corrugation at a sharp curved metro track with Vanguard fasteners

Autor: X Kang, Q Zhu, J.Z. Lv, GX Chen, BW Wu

Publikováno v: Journal of Low Frequency Noise, Vibration and Active Control, Vol 39 (2020)

In Chinese metro lines, Vanguard fastener system is widely used as vibration damping fastener. However, the rails mounted with this fastener system are deeply affected by rail corrugation. The generation mechanism of corrugation wear at a metro track

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d9eaa1ce43ef9e340842c59feee2710
https://doaj.org/article/17b7714e702644299dd5bb7afeb83855

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Akademický článek

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Akademický článek

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Akademický článek

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