Electric locomotive is a kind of high power rectifier load, and its load characteristics will have a significant impact to safe, stable and economic operation of power system. This paper mainly analyses load characteristics of harmonic and reactive power for electric locomotive. Simulation model of electric locomotive is set up based on time trigger; it is so better conform to the dynamic chara...

The expediency of using a hybrid power system with the use traction batteries on diesel locomotive is substantiated since relevance problem being solved lies in possibility increasing weight norm train without reducing performance main equipment locomotive, which great importance for improving efficiency railways. To predict effectiveness introduction autonomous locomotives combined source, pro...

The paper presents the results of research into biostability M-10 base oil samples with addition protective additives for various purposes which are a part earlier composition M-14В2 lubricating developed by us. It was established that despite different nature these (alkyl phenolates, dithiophosphates, sulfonates), all affected microorganisms. found introduction 0,25% α-phenyl-β-nitroethene pro...

The locomotive assignment and the freight train scheduling are important problems in railway transportation. Freight cars are coupled to form a freight rake. The freight rake becomes a train when a locomotive is coupled to it. The locomotive assignment problem assigns locomotives to a set of freight rakes in a way that, with minimum locomotive deadheading time, rake coupling delay and locomotiv...

Black carbon (BC) emission factors were measured for a California commuter rail line fleet of diesel-electric passenger locomotives (Caltrain). The emission factors are based on BC and carbon dioxide (CO2) concentrations in the exhaust plumes of passing locomotives, which were measured from pedestrian overpasses using portable analyzers. Each of the 29 locomotives in the fleet was sampled on 4e...

The article is devoted to topical issues of control and calculation the residual life main frame shunting diesel locomotives operated on railway Uzbekistan. presents mathematical methods for calculating locomotives. Also, it substantiates expediency extending service at earliest stage their development. results were obtained with help Solid works software environment, which allows you analyze c...

[Purpose] This study aimed to examine the prevalence of locomotive syndrome among patients with obstructive sleep apnea syndrome (OSAS) using the "loco-check" recently developed by the Japanese Orthopedic Association, and to compare health-related quality of life (HRQOL) among patients with and without locomotive syndrome. [Subjects and Methods] This cross-sectional study evaluated 1,195 outpat...