Results 1 to 10 of about 114,743 (216)
Research on rail wear of small radius curve in EMU depot [PDF]
Railway Sciences, 2022 Purpose – With the help of multi-body dynamics software UM, the paper uses Kik–Piotrowski model to simulate wheel-rail contact and Archard wear model for rail wear.
Hao Li, Jialin Sun, Guotang Zhao
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Applied Sciences, 2022 Compared with straight tunnels, over-excavation occurs on the inner side of the curved section during shield construction of small radius curved tunnels, and the disturbance to the ground surface and mechanical properties of surrounding rock and segment ...
Ping Lou +4 more
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Case study of performance assessment of overlapping shield tunnels with a small curve radius
Deep Underground Science and EngineeringDue to the network planning of subways and their surrounding structures, increasingly more overlapping shields with a small curve radius have been constructed. A newly constructed upper tunnel partly overlaps a lower one, leading to the extremely complex
Xu Zhang +4 more
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Analysis of influence factors of rail corrugation in small radius curve track [PDF]
Mechanical Sciences, 2021 In order to effectively prevent and control the generation and development of rail corrugation, according to the actual line condition of the small radius curve section, the vehicle (with flexible wheel sets)–track space coupled model was established by ...
Z. Wang, Z. Wang, Z. Lei, Z. Lei
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Applied Sciences, 2023 Compared with straight tunnels, small-radius curved tunnels are more common and have more complex influencing factors in urban underground traffic. Therefore, the seismic evaluation of small-radius curved tunnels is of great significance for the safe ...
Xiaojiu Feng +3 more
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Formation Mechanism of Metro Rail Corrugation Based on Wheel–Rail Stick–Slip Behaviors
Applied Sciences, 2021 Field investigation shows that most corrugations occur on the inner rail surface of curved tracks with a radius of less than 700 m. In order to explore the formation mechanism of metro corrugation, the relationship between wheel–rail stick–slip ...
Zhiqiang Wang, Zhenyu Lei
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Study on Gage Widening Methods for Small-Radius Curves
Applied Sciences, 2021 Existing gage widening standards and the influence of gage widening on the curve passing performance of trains and rail wear were examined. The existing gage widening theory can determine the minimum curve radius that needs to be widened, the widening ...
Pu Wang +3 more
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Effect of Technological and Geometrical Parameters on Formation of Radius Region at Cylindrical Product Bottom in Hydrostatic Forming [PDF]
한국정밀공학회지, 2019 Hydrostatic forming has recently been applied as a special method for manufacturing products with complex surfaces from sheet or tube metal. However, effects of technological parameters as well as geometrical parameters of die on formability and quality ...
Nguyen Thi Thu, Nguyen Dac Trung
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Rail Corrugation Characteristics of Cologne Egg Fastener Section in Small Radius Curve
Shock and Vibration, 2020 By analyzing the measured data of rail corrugation in a small radius curve track with Cologne fasteners, the typical passing frequencies of corrugation were obtained.
Zhiqiang Wang +3 more
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Research on Small Radius Curve Negotiation and Key Parameters of Tram
机车电传动, 2021 To research the small radius curve negotiation of the tram, the motion equation of a free wheelset passing through curve was firstly derived. In theoretically, the influence of the wheel-rail contact friction coefficient, the gauge distance and the curve
Qunsheng WANG +4 more
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