Nozdrzykowski Krzysztof, Grządziel Zenon, Dunaj Paweł
Faculty of Marine Engineering, Maritime University of Szczecin, 1-2 Wały Chrobrego St., 70-500 Szczeci, Poland.
Faculty of Mechanical Engineering and Mechatronics, West Pomeranian University of Technology, 19 Piastów Ave., 70-310 Szczecin, Poland.
Materials (Basel). 2021 May 18;14(10):2644. doi: 10.3390/ma14102644.
This article presents the results of finite element analyses of the influence of reaction forces on stresses and strains at the contact points of the rollers of prism supports with cylindrical surfaces of the main journals of large-sized crankshafts. The analyses of strains and stresses, as well as the depth of their occurrences, in the case of the shaft journal and support rollers were carried out using Hertz contact theory and the finite element method. These calculation results proved to be highly consistent. Additionally, they provide a basis for stating that, in the case under consideration, permanent deformations do not significantly affect the values of the measured geometrical deviations nor the profile forms of the supported main crankshaft journals.
本文介绍了有限元分析的结果，该分析研究了反作用力对大型曲轴主轴颈圆柱表面与棱柱形支座滚子接触点处应力和应变的影响。采用赫兹接触理论和有限元方法，对轴颈和支承滚子的应变和应力及其出现深度进行了分析。这些计算结果证明高度一致。此外，它们为下述观点提供了依据：在所考虑的情况下，永久变形对测量的几何偏差值和被支承的主曲轴轴颈的轮廓形状没有显著影响。
