Implied structures that i will stand tires on security of the road of the fire tankers

Volodumur Kokhanenko

National University of Civil Defenсe of Ukraine

http://orcid.org/0000-0001-5555-5239

Valerii Kolomiets

National University of Civil Defenсe of Ukraine

http://orcid.org/0009-0001-4058-4026

DOI: https://doi.org/10.52363/2524-0226-2023-37-17

Keywords: fire trucks, pneumatic tire, radial design, breaker edges, temperature distribution, reliability, traffic safety

Аnnotation

In connection with the current situation in Ukraine, units of the State Emergency Service of Ukraine have to make more trips on fire trucks to carry out their assigned actions. It has been established that modern fire trucks are equipped with radial tires and that the number of premature retirements of these tires has recently increased. Premature termination of operation of tires can lead, first of all, to the possible death of people in a fire, an increase in material damage, and even to a traffic accident. In order to prevent premature and unpredictable tire failure, it is necessary to identify the causes of tire failures and develop proposals for improving their design. It has been established that the most temperature-stressed layers of the tire carcass and the tire breaker are the most stressed. It is due to the destruction of the shoulder zone and delaminations in the breaker that fire tanker tires are prematurely removed from service. Experimental studies have determined the best scheme for laying the tire breaker and bead. An analysis of the characteristic damage to the tires of fire tankers was carried out and their main causes were determined. It is determined that further operation of tires with such damage is not permissible. The research also found that even if the operating rules and maintenance standards are followed, it is possible to significantly improve the reliability and safety of fire tankers. Based on the research, it is proposed to equip fire tankers with tires of a special design. Proposals for the design of fire tanker tires are substantiated. The obtained data will reduce the likelihood of tire failure and, due to their timely scheduled preventive maintenance, increase the reliability and safety of fire tanker traffic.

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