Experimental studies of new technical solutions in the design of thermal fencing of refrigerated car and container bodies

Abdullayev, Bakhrom; Rahimov, Rustam; Khikmatov, Farkhod; Otajonov, Kh.; Sultonaliev, Doston; Abdurahmonov, P.

doi:10.1063/5.0113108

Cited by 6 publications

(4 citation statements)

References 4 publications

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“…Therefore, wheel pair elements require a specific manufacturing process to ensure the necessary conditions for durability and high reliability [1][2][3]. These issues are relevant for the newly created research center for railway transport, which solves many issues to ensure the safety, reliability, increased service life of cars, their parts, assemblies, including, among other things, the use of modern lightweight materials and technologies for their processing in car construction, wear phenomena [4][5][6][7][8][9][10], improving the thermal characteristics of cars of all types [11][12][13][14][15] and many others.…”

Section: Introductionmentioning

confidence: 99%

Influence of wear of friction wedges of model 18-100 trolleys on the lifetime of the comb

Gayipov,

Galimova,

Xurmatov

et al. 2023

E3S Web of Conf.

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The issue of the influence of wear of friction wedges on the wear of the flange thickness of wheel pairs of freight cars operating on the railways of the Republic of Uzbekistan is considered. An analysis of freight car uncouplings during current uncoupling repairs is presented based on malfunctions of the thin flange of the wheel pairs and overestimation/underestimation of the friction wedge relative to the supporting surface of the bolster more than normal. Methods of combinatorial and statistical analysis of source data were used. The parameters of freight car bogies that most influence the wear of the flange of wheel pairs have been studied. Ways to reduce wear on the flange of wheel pairs in operation are considered by tightening the regulatory requirements established when releasing bogies from repair based on the condition of the friction wedges. The results obtained indicate a decrease in wear on the flanges of wheel pairs and an increase in the service life of the wheels of bogies of 18-100 freight cars when following the recommendations of the article on the repair of bogies.

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Section: Introductionmentioning

confidence: 99%

Influence of wear of friction wedges of model 18-100 trolleys on the lifetime of the comb

Gayipov,

Galimova,

Xurmatov

et al. 2023

E3S Web of Conf.

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“…At the present stage of the development of industry and economy of the Republic of Uzbekistan, the issue of ensuring the safety and efficiency of railway transport is becoming urgent, the solution of which requires targeted measures to improve infrastructure with the introduction of modern innovative technologies [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

The body of a dynamometer wagon for special technical purposes

Khikmatov,

Baltaev,

Soboleva

et al. 2023

E3S Web of Conf.

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The development of new and improvement of existing railway rolling stock wagons is an urgent task of our time, providing for cost reduction, both in the process of creation and operation, and in the maintenance of the wagon fleet. The purpose of the work is to modernize the body of a dynamometer wagon for special technical purposes using modeling. To determine the loading of the structural elements of a dynamometer wagon, a calculated three-dimensional model of the wagon body was developed, the reinforcement points of the wagon frame were determined. Compression/tensile strength tests of the wagon were performed on a stand for loading the frames of wagons and elements of coupling devices. The stress-strain state of the wagon structure is determined when statically applied longitudinal test loads are applied to it. The test results and the stress-strain state of the design of the prototype wagon, under the action of statically applied longitudinal compressive and tensile test loads, showed that the proposed design of the wagon meets the established strength requirements, while no visible damage and residual deformations were found in the design of the prototype wagon. The developed design of the dynamometer wagon body can be included in both freight and passenger trains, which solves the problem of efficient and safe use of locomotives when operating trains on mountainous sections of railways of the Republic of Uzbekistan.

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“…Modern carriage building has great prospects for using scientific achievements. The basis for this statement is many publications on the topic of solving problems of railway transport [1][2][3][4][5]. For example, at the Research Center for Railway Car Building at the Tashkent State Transport University, it conducts targeted world-class research [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Impact of solar radiation on the climate of a passenger car

Inoyatov,

Abdullaev,

Rakhmatov

2023

E3S Web Conf.

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The volume of passenger traffic is constantly growing. Accordingly, the requirements for passenger transportation conditions are increasing - it is necessary to ensure improved comfort. Since the travel routes of passenger cars follow different climatic zones, comfort dictates the need to maintain a constant temperature in the car - 22-26˚C in summer, 20-24˚C in winter. The temperature regime in the car also depends on the materials used in car construction, namely: the heat transfer coefficient, the thermal properties of the car materials. In addition, window openings of passenger cars also participate in heat transfer processes, which also affects the climatic conditions in the car. The article presents the results in the form of calculations and graphs of temperature dependences of the influence of solar radiation on climate (temperature conditions) in a passenger car.

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Experimental studies of new technical solutions in the design of thermal fencing of refrigerated car and container bodies

Cited by 6 publications

References 4 publications

Influence of wear of friction wedges of model 18-100 trolleys on the lifetime of the comb

Influence of wear of friction wedges of model 18-100 trolleys on the lifetime of the comb

The body of a dynamometer wagon for special technical purposes

Impact of solar radiation on the climate of a passenger car

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