NON-PRODUCTIVE TIME LOSSES IN SORTING PARK OPERATION Текст научной статьи по специальности «Строительство и архитектура»

TECHNICAL SCIENCES

NON-PRODUCTIVE TIME LOSSES IN SORTING PARK OPERATION

Butunov D.,

PhD, Docent of the Department "Organization of transport movement" Tashkent state transport university

Uzbekistan Buriyev Sh.,

Assistant of the Department "Organization of transport movement",

Tashkent state transport university Uzbekistan Pardayeva U.

Master student, Tashkent state pedagogical university named after Nizami

Uzbekistan

Abstract

This article describes an analytical formula for calculating the time spent by wagons in a sorting park. The reasons for losses in the work of the sorting park have been determined. The factors influencing the fulfillment of the rate of time spent by wagons are identified. A structural diagram of the dependence of the time spent by transit wagons in the sorting park on external and internal factors has been built, and a general list of factors has been compiled.

Keywords: sorting park, time spent by wagons at the station, accumulation time, overt and covert losses, external and internal factors.

It is known from the theory and practice of sorting stations that the main share of the total completed time spent by transit wagons with processing (hereinafter in the text, the time spent by wagons) falls on the sorting park (SP)

[1-3]. Therefore, the determination of non-productive time losses in the work of SP and control over the implementation of established technical standards for the time spent by wagons, as well as on the basis of analysis, to correctly normalize its values for sorting stations is always relevant.

To date, the time spent by wagons in the SP is reflected in the analytical report on the operation of DO-24VTs sorting stations [4] and is determined by the formula [2]:

t = t + tfor + t ,h

sp acc w ior.rea'

>for

where tacc — accumulation time, h; tw — for-

mation t

waiting

time,

h;

for.rea

time of formation and rearrangement, h.

The paper discusses the state of the average daily fulfillment of the specified norms, the time spent by transit wagons in the SP, on the example of the sorting stations "Ch", Uzbek railways. In fig. 1 shows the planned average daily share of the time spent by transit wagons in the SP by dismemberment of elements.

Waiting to form 6%

Figure 1. Structure of the daily average share of the time spent by a transit wagon in the sorting park

Here (fig. 1), the accumulation time is about 80%, in general, the time spent by transit wagons in the SP. The average monthly time spent in the SP is presented in the form of a histogram (fig. 2).

8 7 6

^ 5

OJ 4

s 4

H 3 2 1 + 0

Plan Fact

Accumulation Waiting to form Formation and

rearrangement

Elements of the time spent by wagons

Figure 2. Average monthly time spent by a transit wagon in a sorting park

Fig. 2 it follows that the time spent on various elements of the time spent by the wagons on average exceeds the planned norms.

The main reason for this is the need to form a train composition of the established weight and (or) length in conventional wagons, provided for by the plan for the formation of freight trains.

In addition, the work of SP is influenced by a large number of reasons for losses, both explicit and so hidden [5-9]. Here, in contrast to obvious losses, the magnitude of hidden losses is less obvious and, if no special

measures are taken, it becomes an inevitable part of the technological process of any railway station [6].

In this regard, timely identification and reduction of such unproductive loss of time in the work of SP becomes an urgent problem of the sorting station.

On the basis of the report of the operation of station "Ch", an analysis was made to determine the causes of losses in the operation of SP and the results of the analysis are presented in figure 3.

Shunting locomotive employment 14%

Employment of

the way of rearrangement of the

Lack of Violation of the

information train formation

about formation plan

9% 5%

Figure 3. The share of causes of losses in the work of the sorting park

From figure 3 it follows that the reason "employment of the way of rearrangement of the composition" has a significant impact on the fulfillment of the established norms of "time spent by the wagon in the SP". Also, the analysis showed that unproductive time losses in their rate are: in the SP 34.2% of the total time spent.

In work [2, 5-7, 10], it is proved that the loss of time in the work of SP occurs due to the influence of

external (independent of the station, and its operation technology) and internal factors (depending on the station, on the state of its technological discipline).

On the basis of [7], structural diagrams were built (fig. 4), the dependence of the time spent by wagons in the SP on external and internal factors.

External factors

Ncap ? Jarr ? mdisb S? mbyapp, Kcl

rdep j Iest ? Jdep

Time spent by wagons

Internal factors

1disb ? mfor ? ^hum

I-ndp

1 Wit 11 tr

^hoo?^loc? Nc

f m rieq S n

■>' for' pre' om-g ' ass

Figure 4. Block diagram of the dependence of the time spent by wagons in the sorting park on external and internal factors

Note: , — wagon traffic capacity; A — inten-

cap

sity of admission, Jarr — station arrival interval fluctuations; misb — the number of wagons and g — groups in the disbanded trains; Wfor — the number of

cl

wagons in the formed trains; mby app — the size of the closing groups by appointment of the formation plan; Kcl — number of closing groups; /^isb — disband-ment interval; tenfor — end time of formation; 4„m —

hum

j^for

hump technological interval; — categories of the

req

formed train; npre — the presence of wagons requiring

special conditions for setting them on the train; Nc — the number of trains accumulating in the SP per day;

Mshun — number of shunting locomotives on hoods;

SP

— i

est — the estimated interval of departure of trains

Iwt _ interval of withdrawal of trains from the SP

I dep _

est

from the station and its fluctuations (Jsp)' n^ number of tracks in the departure park for compositions

awaiting rearrangement; gm

wagon groups in a multi-group composition; nass — the number of wagons transferred to the assembly track

m-g

average number of

of the formed composition; tyhoo _ the level of loading of hoods and locomotives (^loc).

From the diagram (fig. 4) it can be seen that the number of external factors influencing the values of tacc is greater than the internal ones. And, on the value

of tfor.rea, vice versa. Therefore, when establishing the

norm for the time spent by transit wagons in the SP, it is necessary to more carefully consider the influence of

external and internal factors on the tacc and tforrea elements.

Thus, the fulfillment of the established norms of the time spent by a transit wagon in the SP depends on the influence of external and internal factors, which as a result of the resulting unproductive loss of time.

References

1. Standard technical operating process of sorting station operation. Moscow, Transport Publ., 2003, 192 p. (In Russian)

2. Dilmurod B. Butunov. Estimation of inefficient losses in railroad yard operation / D.B. Butunov, A.G. Kotenko // Emperor Alexander I St. Petersburg State Transport University, 2018, Volume 15, Issue 4, Pages 498-512. (https://cyberleninka.ru/article/n/otsenka-

neproizvoditelnyh-poter-v-rabote-sortirovochnoy-stantsii)

3. Dilmurod Butunov Baxodirovich, Sokijon Khudayberganov Kobiljonovich, Shinpolat Suyunbaev Mansuralievich. Modeling of unproductive losses in the operation of a sorting station / European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 2, Pages 277-290. (https://ejmcm.com/article_2070.html)

4. Instructional directions on the order of automated accounting of in-house statistical reporting form DO-24 CC "A report on operation of sorting stations" and DO-24 a CC "A report on operation of station yards". Moscow, OAO "RZhD" Publ., 2016, 45 p. (In Russian)

5. Butunov, D.B. (2020) "Substantiation of the input of the parameters of the unprofitable loss of time when norming the time of the duration of the wagons on the sorting station" Journal of Tashkent Institute of Railway Engineers: Vol. 16: Iss. 3, Article 16. (https://uzjournals.edu.uz/cgi/viewcontent.cgi?article= 1191 &context=tashiit)

6. Butunov D.B. Monitoring of temporal and quantitative characteristics of losses in the operation of a sorting station / D.B. Butunov // XVI International Scientific and Practical Conference: "Innovative Development of Modern Science". Russia, city - k. Anapa, October 10, 2019 y. Pages 28-31.

7. Butunov, Dilmurod Baxodirovich; Aripov, Nodir Kodirovich; and Bashirova, Alfiya Mirkhatimovna (2020) "Systematization of factors influencing during processing of wagons at the sorting station" Journal of Tashkent Institute of Railway Engineers: Vol. 16: Iss. 2, Article 10. (https ://uzj ournals.edu. uz/tashiit/vol16/iss2/10/)

8. Butunov D.B. Determination of factors affecting wagon turnover time / D.B. Butunov, Sh.X. Buriyev, B.Sh. Kamalov // Deutsche internationale Zeitschrift für zeitgenössische Wissenschaft / Germany, Volume 1, Issue 8, 2021. 2933 p. DOI: 10.24412/2701-8369-2021-8-1-29-33 (https://cyberleninka.ru/article/n/determination-of-factors-affecting-wagon-turnover-time)

9. Butunov D., Abdukodirov S., Khusenov U., Buriyev Sh., Methods of improving technological practices of processing of combined trains at intermediate stations, The scientific heritage, VOL 1, No 67 (67), pp. 39-43, (2021), DOI: 10.24412/9215-0365-2021-67-139-43 (http://www.scientific-heritage.com/wp-content/uploads/2021/06/The-scientfic-heritage-No-67-67-2021-Vol-1.pdf)

10. Kobulov J.R. Systematization of the main factors affecting the cooling rate of fruits in refrigerated railroad cars / J.R. Kobulov // Transportation: Science, Education, Production. Proceedings of the International Scientific and Practical Conference. Rostov-on-Don, April 12-15, 2016 y. Pages 91-93.

МЕХАН1ЗМИ ЩДВИЩЕННЯ ЕФЕКТИВНОСТ1 ТА БЕЗПЕКИ ЗА РАХУНОК ШТЕГРАЦП ПЛАТФОРМИ РОЗРОБКИ МОБ1ЛЬНИХ ДОДАТК1В

Кошель А.В.

маггстр Кшвського нацюнального унгверситету 1меш Тараса Шевченка Розробник программного забезпечення Товариство з обмеженою в1дпов1дальн1стю "Арткай "

м. Кшв

https://orcid. org/0000-0003-1099-0995

MECHANISMS TO INCREASE EFFICIENCY AND SECURITY THROUGH THE INTEGRATION OF A MOBILE APPLICATION DEVELOPMENT PLATFORM

Koshel A.

Qualification: Master Degree Program Subject Area 122 Computer Science Educational program Artificial Intelligence Technologies

Software developer Limited Liability Company "Artkai"

Kyiv

Анотащя

У статп розкрито мехашзми тдвищення ефективносл та безпеки за рахунок штеграцп платформи розробки моб№них додатшв. Здшснено класифшацш платформ розробки мобшьних додатшв у рiзних категорiях залежно ввд трьох основних компоненпв: розробник використовуе шструменти розробки для створення свого мобшьного додатку; розробник публжуе свою програму на портал^ з якого споживач може завантажити додаток на свш мобшьний пристрш. Ця модель, включае розробнишв, портал додатшв, споживачiв та ва процеси, пов'язаш з публжащею та придбанням мобшьного додатку. Описано принципи реалiзацii ввдкритоГ та закритоГ платформи. Шдкреслено, що за рiвнем штеграцп, варто видшили чотири рiзнi типи, а саме повну штеграцш, портальну iнтеграцiю, а також штеграцш пристрою та вщсутнють iнтеграцii. Кожна з них наведена схематично та обгрунтована Г! доцшьшсть. Наголошено, що iнтеграцiя