Интернаука №16 (часть3) 2020 - [26]

32

Журнал «Интернаука»

№ 16 (145), часть 3, 2020 г.

ENGINEERING

OPERATIONAL RELIABILITY OF VEHICLES OPERATING IN THE HIGH ALTITUDE AND

HOT CLIMATE OF UZBEKISTAN

Maxamadjon Musadjanov

Professor, PHD, Tashkent institute of design, construction and maintenance of automobile roads,Republic of Uzbekistan, Tashkent

Nigmat Muminjonov

Docent, PHD, Tashkent institute of design, construction and maintenance of automobile roads,Republic of Uzbekistan, Tashkent

Xusan Maxkamov

Director of UE “Tashavtotamirxizmat”,

Republic of Uzbekistan, Tashkent

ABSTRACT

The article highlights the results of studies of the reliability of vehicles in the high mountains and hot climate of Uzbekistan.

Keywords: Reliability, reliability, maintainability, operating conditions, highlands, hot climate.

The reliability of the vehicle is laid in the design, is

In 1977 and 1985 it was held in Tashkent All-

provided during manufacture and is implemented in

Union scientific and technical conference "Improving operation.

the efficiency and to use for car - stably transport in hot

The technical content of reliability consists of the

climates

and

high-ra nd ones" . Union

development of specific requirements and the imple-

and P espub Likanskii conferences are held on a regular

mentation of structurally technological measures in the basis [2,3].

field of production, ensuring an increase in the reliabil-

Bus plants are interested in receiving information

ity of the car, as well as in the field of operation, ensur-

about the first failures aggregates and parts, as well as ing the implementation of reliability at minimum cost.

indicators of the reliability properties of their products.

The tasks of the areas of production and operation

In 1975 -1981 years on the basis of economic con-

in the problem of ensuring reliability are closely interre-

tracts with the All-Union Scientific Research Institute of

lated: they complement each other and serve as a single

bus were conducted "Research operational reliability goal to increase the reliability and efficiency of

LiAZ buses , LAZ, PAZ and Icarus in a controlled

cars. One of the main aspects of this problem is opera-eq with pluatatsii strongholds in the city of Tashkent" .

tional reliability, that is, reliability implemented under

[4]

certain operating conditions [1].

The annual and final reports, discussed at the au-

Reliability of cars is characterized by their reliabil-

tomakers reflected indicators buses reliability proper-

ity, durability, maintainability and maintainability in the

ties , operating in hot climates , identified assemblies regulated conditions of operation, maintenance, repair

and components, critical in terms of reliability, pro-and overhaul, storage and transportation.

posed tie-improving design and technology manufac-

The operating conditions under which cars are used

tures and buses.

affect the operating modes of units and parts, accelerat-

Features of the nature of Uzbekistan are determined

ing or slowing down changes in the parameters of their

by its position in the center of the continent, away from

technical condition. Under different operating condi-

the oceans. The republic coexist snow-covered moun-

tions, the realized values of the reliability indicators of tain peaks and stagnant boilers and us lying below the automobiles will vary, which will affect the perfor-level of the oceans, bare sand, an endless maze of ramance indicators of technical operation.

vines and foothills Ustyurt plateau, wide armholes pow-

The issues of technical maintenance, including their

erful rivers and rock outcroppings, desert dunes and

reliability, in the conditions of highlands and hot cli-oases, drowning in the greenery of cultivated plants.

mates are devoted to the research work of a number of Uzbekistan has a hot, sharply continental and very

authors of the Republic of Uzbekistan, near and far

arid climate. Together with other republics of Central abroad .

Asia, Uzbekistan occupies the most southern position,

With the organization in 1972 of the Tash-

therefore, the flux of radiant energy of the sun is very kent Automobile and Road Institute, the only one in

significant here.

the Central Asian region, research on the operation of

Studying the characteristics of the natural, climatic

automobiles began to develop more efficiently .

and road conditions of the highlands and hot cli-

mates shows that they are extremely difficult for cars

33

Журнал «Интернаука»

№ 16 (145), часть 3, 2020 г.

and therefore require serious study and consideration

Details critical to reliability in terms of reliabil-

when deciding on the reliability of cars .

ity were:

The studies I , conducted in the highlands town of

a) Ford-Cargo 1827 trucks:

Angren have confirmed the degree of impact of the ac-

 sleeves - 14, 7%;