Results 81 to 90 of about 9,298 (200)
机车电传动, 2022 Because straddle monorail vehicles run on rubber wheels, the contact status between the pantograph and the catenary is hard to control, and the abrasion on the current-receiving sliding block on the pantograph is serious.
ZHANG Yuejun +4 more
doaj
Experimental Methods in Pantographic Structures
, 2020 Once a metamaterial has been conceived, designed and built, its expected properties must be experimentally verified, in order to validate the conceptual analysis leading to it and the construction process used to realize it. Using 3D printing technology is not always a trivial task, especially if the designed microstructures are complex and show large ...
Dell'Isola, F +9 more
openaire +2 more sources
Applied SciencesThrough the geometric relationships and force analysis of the main components of pantographs on high-speed trains, the coefficients of aerodynamic forces and lift transmission between the pantograph and main components under crosswind conditions were ...
Meng Zhao +3 more
doaj +1 more source
Contact Force Surrogate Model and Its Application in Pantograph–Catenary Parameter Optimization
Applied SciencesThe significant increase in the speed of high-speed trains has made the optimization of pantograph–catenary parameters aimed at improving current collection quality become one of the key issues that urgently need to be addressed.
Rui Zhou, Xianghong Xu
doaj +1 more source
Study on abnormal abrasion of metro pantograph
机车电传动, 2023 Pantograph-catenary system is the central system for the power supply of urban rail transit trains. Higher train speed and complex train operating environment can generate severe vibrations on the pantograph-catenary system, resulting in high-frequency ...
ZHANG Shiyu +4 more
doaj
Stability results for 2D Navier-Stokes equations with unbounded delay [PDF]
, 2018 Some results related to 2D Navier-Stokes equations when the external force contains hereditary characteristics involving unbounded delays are analyzed. First, the existence and uniqueness of solutions is proved by Galerkin approximations and the energy ...
Caraballo Garrido, Tomás +2 more
core
Pantograph Body and Its Installation Strength Research of Test EMUs
机车电传动, 2013 In order to understand pantograph performance on domestic high-speed test EMUs, pantograph mechanical and structural strength was anticipated. Pantograph body and base finite element analysis model of test EMUs was built, and pantograph body parts ...
SUN Chuan-ming
doaj
Aerodynamic Characteristics of High-speed Train Pantographs Based on Jet Flow Control [PDF]
Journal of Applied Fluid MechanicsThe pantograph is a critical instrument that significantly affects the aerodynamics of high-speed trains, posing a considerable challenge to the energy conservation and environmental protection of trains.
S. Huang +5 more
doaj +1 more source
Universality theorems for configuration spaces of planar linkages
, 1998 We prove realizability theorems for vector-valued polynomial mappings, real-algebraic sets and compact smooth manifolds by moduli spaces of planar linkages.
Kapovich, Michael, Millson, John J.
core +2 more sources
Three-dimensional pantograph for use in hazardous environments [PDF]
, 1970 Material measurement device is used with radioactive probes which can be approached only to distance of 3 feet. Tracer-following unit is capable of precisely controlled movement in X-Y-Z planes.
Cowfer, C. D., Wagner, H. A.
core +1 more source