Abstract
Modern hydrovolumetric transmissions with ball pistons work under high loads. In the field of their contact interaction with the running track, there are significant efforts. For analyzing the contact interaction of ball pistons with running tracks, the pliability of their surface layers is considered. They are modeled with materials with nonlinear properties. The analysis of changes in the contact area and contact pressure distributions depending on the properties of the material of the intermediate layer is carried out. In particular, a material with a bilinear elastic characteristic was investigated. It was found that the properties of the material strongly affect both the shape and size of the contact area. This changes the distribution of contact pressure. At low pressing force, the contact area has an oval shape. The contact pressure has a maximum in the center of the contact area. With increasing pressing force, the contact area takes the form of a dumbbell. The maximum contact pressure is shifted to the periphery of the contact area. Thus, it is possible to control the distribution of contact pressure by changing the properties of the material of the intermediate layer. Accordingly, it is possible to influence the stress-strain state of contacting bodies.
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Tkachuk, M., Grabovskiy, A., Tkachuk, M., Hrechka, I., Sierykov, V. (2021). Contact Interaction of a Ball Piston and a Running Track in a Hydrovolumetric Transmission. In: Ivanov, V., Pavlenko, I., Liaposhchenko, O., Machado, J., Edl, M. (eds) Advances in Design, Simulation and Manufacturing IV. DSMIE 2021. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-030-77823-1_20
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