UDC 629.118 BBK 39

Martin Vlkovský, Kamil Bednář

The article deals with the special features of fastening of cargo in crisis situations during the emergency supply. The emphasis is placed on crisis situations where limited transport infrastructure is available for emergency supply purposes. Under these conditions, problems with transport of emergency supplies to and within the crisis situation area can be assumed. Based on the statistical evaluation of the transport experiment carried out on the road (motorway) and on unpaved communications (terrain) respectively recommendations are made in relation to the fastening of cargo.

Keywords: fastening of cargo; inertial forces; acceleration coefficients; emergency supply; transport experiment.

SPECIFIKA UPEVŇOVÁNÍ NÁKLADU V RÁMCI NOUZOVÉHO ZÁSOBOVÁNÍ

Článek řeší zvláštnosti upevnění nákladu v krizových situacích během procesu nouzového zásobování. Důraz je položen na krizové situace, kdy je pro účely nouzového zásobování k dispozici omezená dopravní infrastruktura. V uvedených podmínkách lze předpokládat problémy v přepravě nouzových zásob do prostoru krizové situace a v rámci ní. Na základě statistického vyhodnocení přepravního experimentu, který byl proveden na silnici (dálnici), resp. na nezpevněné komunikaci (terénu), jsou předloženy doporučení ve vztahu k upevnění nákladu.

Klíčová slova: upevnění nákladu; setrvačné síly; koeficienty zrychlení; nouzové zásobování; přepravní experiment.

Скачать (319.9 kB)

UDC 656.073 BBK 39.28

Ilesaliyev D. I.

The author researches numerous variants of cargo rack storage on the pallets with dimensions of 1,200×800 mm taking into consideration filling the storage area by length, width and height for different parameters of cargo. The patterns of changing the storage area capacity are revealed. To estimate the capacity of an indoor warehouse for piece goods, a parameters series was developed.

Keywords: piece goods, unit load, warehouse, shelving, storage area.

Download article in PDF (169.1 kB)

UDC 629.42:629.4.054, 625.28 BBK 39.232

Ablyalimov O. S.

The article presents the research results of analysis and estimate of transportation efficiency of 3VL80^S mainline (train) three-section electric locomotives on the hilly and mountainous section Marokand-Navoi of JSC “Uzbekiston temir yullari” with non-stop and stop-and-go freight traffic at passing tracks, intermediate stations and intersections. The values of kinematic and energy parameters of the key figures of 3VL80^S electric locomotives allow the locomotive complex specialists to elaborate recommendations for increasing  the efficiency of rail transport in real conditions of operating a tractive electric stock on hilly and mountainous railway sections.

Keywords: research, a result, a freight train, motion,  an electric locomotive, a railway track, operation, conditions, direction, speed, a rolling stock, analysis, hilly and mountainous, estimate, a station, to present, a point, average, quality, a station-to-station block, profile.

Скачать (176.3 kB)

UDC 629.42:629.4.054, 625.28 BBK 39.232

Ablyalimov O. S.

The article presents the results of validation of operating parameters of 3VL80S mainline (train) three-section electric locomotives on a real hilly and mountainous railway section with non-stop and stop-and-go freight traffic at passing tracks, intermediate stations and intersections as well as estimation of the traction qualities (properties) of the track profile for this section. Criteria for the estimation are the adjusted values of overall and specific power consumption for hauling operation numerically and in terms of money with account taken of the values of equated time of train travel in traction mode and of the specific power consumption per trip. The research results were received using the methods and techniques of the locomotive-traction theory with account of basic indicators of the traction-energy efficiency of 3VL80^S use in the form of tabular data and curves. The research results are recommended for practical use by engine-drivers, termotechnic instructors and experts of linear enterprises of the Uzbek railway locomotive complex who deal with issues of energetics of freight and passenger trains movement on the real hilly and mountainous and identical virtual railway sections.

Keywords: research, result, a freight train, movement, an electric locomotive, a railway track, a section, a method,  exploitation, condition, direction, a stage, speed, calculation, rolling – stock, analysis, hilly and mountainous, point, divide, average, dependence, substantiation, quality, a block, profile, railway.

Скачать (224.3 kB)