Results 71 to 80 of about 98,921 (148)

DC3 IS EIGHT-WHEELS LOCOMOTIVE WITH THE SECOND METHOD OF TRACTION RATIO, RATING OF DISCHARGING LOADS AND ADDITIONAL ONES OF ITS WHEELS AND DEFLECTIONS OF SPRING SUSPENSION DURING THE TRACTIONS EFFORTS TRANSFER FROM BOGIES TO CAR BODY WITH USING RECLINING

Nauka ta progres transportu, 2011
In the article the calculation formulas for determination of unloadings (finish loadings) of wheels and bendings of a spring suspension of eight-wheel electric locomotive DS3 with the traction transmission of the second kind at transmitting the traction ...
V. A. Bratash, T. I. Yefimova, U. Y. Povolotska   +2 more
doaj  

Traction Boundary Conditions for Molecular Static Simulations

, 2015
This paper presents a consistent approach to prescribe traction boundary conditions in atomistic models. Due to the typical multiple-neighbor interactions, finding an appropriate boundary condition that models a desired traction is a non-trivial task. We
Li, Xiantao, Lu, Jianfeng
core   +1 more source

Research on Traction Power Supply System for Shanghai Rail Transit Chongming Line

Chengshi guidao jiaotong yanjiu
[Objective] It is to address issues such as stray current corrosion and limited distance for DC traction power supply systems conventionally using rail return in urban rail transit.
Xiaofeng WANG
doaj   +1 more source

INCREASING OF COMPUTATIONAL ACCURACY WHICH IS BASED ON USING MULTI-MAGNETIC – OPERATED CHARACTERISTICS OF ELECTRO-MOTORS

Nauka ta progres transportu, 2011
The value of saturation factor for traction D.C. motors, which allow promoting the accuracy of calculations based on application of universal magnetic characteristic, is offered.
S. M. Holik
doaj  

Conceptual design and analysis of roads and road construction machinery for initial lunar base operations [PDF]

Recent developments have made it possible for scientists and engineers to consider returning to the Moon to build a manned lunar base. The base can be used to conduct scientific research, develop new space technology, and utilize the natural resources of
Banks, Joel, Efatpenah, Keyanoush, Sines, Jeffrey L.   +2 more
core   +1 more source

Traction Calculation for Metro B-cars

Journal of Theory and Practice of Engineering Science
Traction calculation of urban rail transit vehicles is an important means to confirm the traction quality, running speed, running time and energy consumption, and it can also improve the safety of subway operation. In this paper, the train control system is introduced, and the basic train resistance, train traction characteristics, train regenerative ...
openaire   +1 more source

Theoretical aspects and methods of parameters identification of devices of the electric traction system. method of instantaneous powers; parallel connection of elements

Nauka ta progres transportu, 2012
A new method for parameters identification of devices of the electric traction systems is offered. The numerical calculations of time and current dependences of equivalent parameters of two-terminal networks, which equivalent circuit looks as parallel ...
T.M. Mishchenko
doaj  

Energy accounting in AC substations in case of transit currents flowing through the contact network

Вестник Научно-исследовательского института железнодорожного транспорта, 2017
The purpose of the work is to clarify the methodology for determining the electric power consumption of traction substations of AC electric power for the transit of external power supply.
V. M. Varentsov, A. I. Bur’Yanovatyy, M. A. Ivanov   +2 more
doaj   +1 more source

Analysis of whisker-toughened ceramic components: A design engineer's viewpoint [PDF]

, 1989
The use of ceramics components in gas turbines, cutting tools, and heat exchangers has been limited by the relatively low flaw tolerance of monolithic ceramics. The development of whisker toughened ceramic composites offers the potential for considerable
Duffy, Stephen F., Manderscheid, Jane M., Palko, Joseph L.   +2 more
core   +2 more sources

Predicted and experimental performance of jet-lubricated 120-millimeter-bore ball bearings operating to 2.5 million DN [PDF]

Bearing inner- and outer-race temperatures and friction power losses were calculated using two computer programs. The values obtained were compared with previously reported experimental data for 120 mm bore bearings which operated at thrust loads to 22 ...
Coe, H. H., Zaretsky, E. V.
core   +1 more source