Results 31 to 40 of about 781 (134)

Studying durability of units’ details of running gear’s friction of kamaz automobiles

open access: yesВестник СибАДИ, 2017
The article presents results of experimental (using developed method and a tribometr) and natural tests of lubrications’ efficiency of various structures and decreasing wear’s friction.
V. V. Evstifeev   +2 more
doaj   +1 more source

Многофакторный анализ потерь на трение в быстроходном дизеле с газотурбинным наддувом [PDF]

open access: yes, 2005
Проведено исследование потерь на трение в быстроходном дизеле с газотурбинным наддувом. Рассмотрены основные факторы, влияющие на потери трения. Предложена математическая модель, которая может быть применена для определения потерь трения в исследуемом ...
Белик, Сергей Юрьевич   +1 more
core  

CONDITIONS OF THE MECHANICAL SYSTEM MOTION STABILITY LOSS INTERACTING WITH A TRIBOMEDIUM

open access: yesВестник Донского государственного технического университета, 2018
Conditions of the motion stability loss of a mechanical system interacting with a medium that is formed at a tribomating are discussed. Conditions of the formation and the role of dissipative, gyroscopic, potential and circulation forces that are formed ...
V.L. ZAKOVOROTNY   +2 more
doaj  

ОЦЕНКА ЗНАЧЕНИЯ КОЭФФИЦИЕНТА ШЕРОХОВАТОСТИ

open access: yesГидросфера: Опасные процессы и явления, 2019
В статье рассматривается один из основных параметров при проведении водохозяйственных расчетов – коэффициент шероховатости. Оценка его величины до настоящего времени проводится по специальным таблицам или расчетным способом.
Alexey Yu. Vinogradov   +3 more
doaj   +1 more source

Учет потерь энергии на внутреннее трение в ударных процессах при моделировании процесса обработки деталей свободным абразивом методом частиц [PDF]

open access: yes, 2013
Кипчарский, С. В. Учет потерь энергии на внутреннее трение в ударных процессах при моделировании процесса обработки деталей свободным абразивом методом частиц / С. В. Кипчарский // Университетская наука-2013 : в 3 т. : тез. докл. междунар.
Кипчарский, Сергей Викторович   +1 more
core  

TECHNIQUE OF DEFINITION OF POTENTIALS OF THE ZERO CHARGE OF METALS ON SIZE OF WEAR PROCESS AT POLARIZATION WITH SIMULTANEOUS ULTRASONIC INFLUENCE

open access: yesВестник Донского государственного технического университета, 2018
The technique of definition of potentials of a zero charge of metals on size of wear process is developed at polarization with simultaneous ultrasonic influence in a regular one-, two-nuclear spirits and glycerin.
M.A. BELIKOVA, A.A. KUZHAROV
doaj  

Structure of pulmonary non-elastic resistance in community-acquired pneumonia

open access: yesБюллетень сибирской медицины, 2006
70 community-acquired pneumonia (CAP) patients and 50 healthy individuals were examined with the identification of general non-elastic resistance (GNR), aerodynamic resistance (40 CAP patients и 30 healthy individuals), bronchial resistance (Raw) (30 CAP
T. N. Bodrova   +6 more
doaj   +1 more source

Recent Advances in Friction Stir Welding Process

open access: yesRUDN Journal of Engineering Research, 2009
Friction stir welding is a refreshing approach to the joining of metals. Although originally intended for aluminum alloys, reach of FSW has now extended to a variety of materials including steels and Polymers.
V A Rogov, - Walid Mahmoud Shewakh
doaj  

The influence of oxidation on tribological properties of rapeseed oil / Oksidacijos įtaka rapsų aliejaus tribologinėms savybėms / Влияние оксидации рапсового масла на его трибологические свойства

open access: yesTransport, 2011
Approximately a half of all consumed lubricants, in one or another way, end up in the environment. Some countries put forward recommendations or even requirements for the use of environmentally friendly bio-lubricants the purpose of which is to reduce a ...
Raimondas Kreivaitis   +4 more
doaj   +1 more source

The influence of braking time on heat flow through the friction surfaces of the friction elements of disk brakes for railway vehicles /

open access: yesTransport, 2011
Disk brakes were first introduced on the suburban and urban coaches and high speed freight cars (V > 120 km/h) for the following reasons: shoe brakes reached their potential limits, especially at high speeds; the maintenance of disc brakes is cheaper ...
Liviu Sevastian Bocîi
doaj   +1 more source

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