Results 51 to 60 of about 836,979 (348)

Traction calculations and design data for two traction fluids [PDF]

open access: yes, 1983
The rheological properties of the fluid under these certain conditions which precludes the use of most of the conventional instruments for steady state measurement were studied.
Tevaarwerk, J. L.
core   +1 more source

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé   +5 more
wiley   +1 more source

Study of Vertical Characteristics with Changes in Prepressure of Rubber Pad Used by High-Speed EMU

open access: yesAdvances in Materials Science and Engineering, 2020
Rubber spring plays an important role in improving train performance, so the study of rubber spring is one of the focuses of train dynamics. The vertical characteristic parameters of rubber spring are affected by prepressure significantly, as a result of
Chuanbo Xu   +4 more
doaj   +1 more source

Research on Load Characteristics of Axle-Box Bearing Raceway under Wheel-Rail Excitation

open access: yesShock and Vibration, 2021
With the increasing speed of high-speed trains, the service conditions of axle-box bearing system worsen, and meanwhile, the dynamic performance of the axle-box bearing directly affects the operational safety.
Xiaokang Liao   +5 more
doaj   +1 more source

Analysis of power converters with devices of SiC for applications in electric traction systems [PDF]

open access: yes, 2016
This article presents the analysis of two topologies of power converters. Voltage Source Inverter (VSI) and Current Source Inverter (CSI) proposals for traction system applications, these topologies are implemented with silicon carbide devices.
Fernández Palomeque, Efrén Esteban   +3 more
core   +1 more source

Numerical Exploration of Thermal Shock Resistance in MgO–C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
A mesostructure‐resolved numerical framework is developed to evaluate the thermal shock resistance of MgO–C refractories. By modeling interface debonding under rapid temperature changes and introducing a modified thermal shock parameter that accounts for mesocracks, the study shows how graphite content and aggregate size influence thermal shock ...
Jishnu Vinayak Gopi   +3 more
wiley   +1 more source

Effect of Control Measures on Wheel/Rail Noise When the Vehicle Curves

open access: yesApplied Sciences, 2017
This paper developed a time domain simplified model to study the effect of control measures on wheel/rail noise when the vehicle curves. The time domain model consists of two parts, one being a vehicle-track coupling dynamic model for wheel/rail ...
Jian Han   +5 more
doaj   +1 more source

Effect of Periodic Overloads on Short Fatigue Crack Behavior in CuNi2Si Alloy under Rotating Bending Load

open access: yesMetals, 2020
In this study, the short fatigue crack behavior in a precipitation-strengthened CuNi2Si alloy was investigated using a replica technique under rotating bending loads with periodic overloads, an overload ratio of 1.5, and the stress ratio of both was R = −
Yahang Qin   +6 more
doaj   +1 more source

Electrical Vehicles—Practical Solutions for Power Traction Motor Systems

open access: yesIEEE transactions on industry applications, 2018
This paper presents various solutions for the power traction motors of electrical vehicles. Equivalent designs to those commercially available on the roads are investigated.
Mircea Popescu   +5 more
semanticscholar   +1 more source

Bioinspired Shape‐Memory Hook Fasteners With Programmable Interlocking and Silent Release

open access: yesAdvanced Engineering Materials, EarlyView.
Bioinspired hook fasteners made from epoxy shape‐memory polymers are shown to switch between strong, secure attachment and gentle, silent release when heated. By combining programmable geometry and material response, these adaptive fasteners outperform commercial systems in strength and noise control, enabling new solutions for robotics, medical ...
Maria I. Vallejo Ciro   +3 more
wiley   +1 more source

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