Abstract

The equipment involved in the agro-industrial complex is subject to active wear and corrosion. The modern solution is to replace the body steel elements with composite ones, but they have not become widespread due to some conservatism of the industry. (Research Purpose) The research purpose is substantiating the effectiveness of the use of polymer composite materials for power body elements of agricultural transporting machines. (Materials and methods) It was noted that the replacement of traditional steel products with composite ones makes it possible to achieve a significant reduction in the mass of products while increasing their reliability, increasing the resource due to the absence of corrosion destruction and minimizing the cost of conservation and storage. (Results and discussion) A comparative analysis was performed using the example of a trailer of an agricultural vehicle, all-metal and composite versions of the side design were considered. The presented options were substantiated on the basis of a qualimetric assessment by an expert method according to the criteria: cost, prospects, material consumption, environmental friendliness, maintainability, corrosion and wear resistance. Analysis of the calculation result showed that the experts preferred the composite version compared to the traditionally used steel sides. An accumulation histogram was constructed according to the data obtained, showing the significance of the final assessment for each criterion (Conclusions) Proved the feasibility of introducing power body elements based on polymer composite materials for machines of the agro-industrial complex. A design based on polymer composite materials of the side of an agricultural trailer in the form of a five-layer rectangular plate of sandwich-structured type capable of withstanding loads arising during operation has been proposed. The use of this design will significantly reduce the mass while increasing corrosion resistance and reliability, which will reduce the cost of repair, maintenance and consumption of fuel and lubricants.

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