Abstract
The paper presents a modeling of angular bearing in the context of motion resistance. It was assumed that the motion resistance depends on the contact forces. For that reason, the main goal of modeling was an estimation of the forces and determination of the influence of such parameters, like rotational speed of the bearing ring, pre-displacement of the bearing and fit of the shaft and the inner ring, exerted on those forces. In the literature, when estimating the contact forces, such parameters are taken into account very rarely. The modelling was performed by means of a numerical method, viz. FEM. The modeling results show that the omission of such parameters will lead to big errors in estimation of contact forces, and those errors may be as high as 100%, or even higher. The real motion resistance will be bigger than calculated.
Highlights
The development of HSC (High Speed Cutting) technology results in a significant increase in kinematic parameters in the cutting process, viz. cutting and feed speed
It was assumed that the resistance caused by the friction of the balls on the raceways is a function of the contact forces occurring between the balls and raceways
The article focuses on those factors which are so far have been poorly presented in the literature, i.e. the effect of dynamic phenomena related to the rotational movement of the bearing ring, with the effect of fit of the shaft in the bearing bore, with the effect of pre-displacement of the angular bearing upon contact forces and the radial deformation of the inner ring
Summary
The paper presents a modeling of angular bearing in the context of motion resistance. It was assumed that the motion resistance depends on the contact forces. In the literature, when estimating the contact forces, such parameters are taken into account very rarely. The modeling results show that the omission of such parameters will lead to big errors in estimation of contact forces, and those errors may be as high as 100%, or even higher. W artykule przedstawiono modelowanie łożyska tocznego skośnego w kontekście oporów ruchu. Że opory ruchu są proporcjonalne do sił kontaktowych to głównym celem modelownia stało się oszacowanie ich wielkości oraz określenie wpływu takich parametrów jak prędkość obrotowa pierścienia łożyskowego, wstępne odkształcenie łożyska i pasowania wałka i pierścienia łożyskowego na te siły. Słowa kluczowe: ożysko toczne, opory ruchu, MES
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