INFLUENCE OF WHEEL PROFILE AND HARDNESS ON TRACK STABILITY WITH DIFFERENT CONSTRUCTIONS OF FASTENINGS

Zbirnik naukovikh prats'' Derzhavnogo universitetu infrastrukturi ta tekhnologii seriia Transportni sistemi i tekhnologiyi Pub Date : 2022-06-30 DOI:10.32703/2617-9040-2022-39-1

V. Demchenko, S. Hulak, O. Demchenko, D. Zaika

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Abstract

Experimental researches on establishment of technical parameters of intermediate rail fastenings concerning maintenance of longitudinal stability of rail threads, establishment of technical parameters of intermediate rail fastenings on maintenance of longitudinal stability of rail threads are carried out. The researches of influence of technical characteristics of hardness at interaction of a rail and a wheel and their influence on the level of longitudinal forces of interaction between elements of a track and wheels of a rolling stock in operation on the railways of Ukraine are analyzed. After the start of operation of wheel pairs with the increased value of hardness the optimum ratio of hardness of rail and wheel steel was broken. It is known from various sources regarding the interaction of the rail and the wheel that metals with approximately same hardness show better wear resistance in the friction pair. Based on the obtained data, calculations were performed and their analysis was carried out with the development of recommendations for further operation.

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不同扣件结构下车轮轮廓和硬度对轨道稳定性的影响

对维护钢轨螺纹纵向稳定性的中间扣件技术参数的建立、维护钢轨螺纹横向稳定性的中间钢轨扣件技术参数建立进行了试验研究。分析了乌克兰铁路运营中轨道与车轮相互作用时硬度技术特性的影响及其对轨道元件与车辆车轮相互作用纵向力水平的影响。随着硬度值的增加，轮对开始运行后，钢轨和车轮钢的最佳硬度比被打破。从关于轨道和车轮的相互作用的各种来源已知，具有大致相同硬度的金属在摩擦副中表现出更好的耐磨性。根据获得的数据，进行了计算和分析，并制定了进一步操作的建议。

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Zbirnik naukovikh prats'' Derzhavnogo universitetu infrastrukturi ta tekhnologii seriia Transportni sistemi i tekhnologiyi

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27 weeks