PSI - Issue 59

Andrii Senyk et al. / Procedia Structural Integrity 59 (2024) 508–515

515

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Andrii Senyk et al. / Structural Integrity Procedia 00 (2023) 000 – 000

3 ( ) q q      on the circlegram of these areas is determined. The values q  and ( ) q D  and sector intervals max q max q  are given in Table 3. Table 3. Intervals of sectors and sector average values, ̄ μm, dispersions μm, and maximum values of deviations from roundness. No Intervals of sectors Scattering characteristics | | q  , μm ( ) q D  , μm max q  , μm 1   4, 4    9.982 46.156 30.36 2     12,512  12.883 29.329 29.13 3     12,7 12 13.306 27.702 28.09 4     4,3 4 14.051 24.097 28.78 5     512 ,1112 10.760 52.391 32.47 6     7 12 ,1312 7.089 23.616 21.67 7     3 4 ,5 4 3.790 8.151 12.35 8     1112 ,17 12 9.079 64.873 33.24 9     1312 ,1912 16.089 142.085 51.85 10     1512 ,2112 19.509 86.404 47.40 11     17 12 ,2312 14.613 125.215 48.18 12     1912 ,2512 10.851 57.203 33.54 13(1)       4 ,27 12 4 2112      9.982 46.156 30.36 3. Conclusions Thus, the area with minimum deviations from roundness is determined on the averaged circlegram - position No 7 [3/4π - 5/4π], where the average value is Δ q7 =3,79 μm, and the dispersion is D ( Δ q7 )=8,151 μm 2 . The maximum value of deviations from roundness is Δ qmax =12,35 μm. Having obtained such data, it is proposed to orient the rolling kingpin bushings in the assembly of the undercarriage journal unit with the area having minimal deviations from roundness to such position where maximum loads occur. 4. References Dzyura, V., Kryvyi, P., Tymoshenko, N., Krupa V., 2014. Technological Heredity and Accuracy of the Cross-Section hapes of the Hydro Cylinder Cylindrical Surfaces. Canadian journal science, education and culture, – №2 (6) (July - December), Volume I. “TorontoPress”, 2014, 301-310. Kryvyi, P., Senyk, A., Dziura, V., Kobelnyk V., 2016. Investigation of macrogeometry of cross-sections of cylindrical surfaces on the example of kingpin bushings. Collection of abstracts of the 7th International Scientific and Technical Conference “Modern Power Plant s on Transport, Technologies and Equipment for their Maintenance”: September 22 -23, 2016: abstracts - Kherson State Maritime Academy, 188 189. Kryvyi, P., Tymoshenko, N., Kolomiiets, V., Chornyi, R., 2013. Statistical estimation the of press connections strength of drive roller chains of foreign companies based on the theory of small samples. Bulletin of TNTU. 70(2), 121-129. Kryvyy, P., Kryvinskyy, P., Bodnar, V., Sotnyk, I., Senuk, А., 2007. Theoretical and Experimental Substantiation of Angle Ori entation of Rolling Bushings of Roller and BushingChains. Paperno. MSEC 2007-31211 International Manufacturing Science and Engineering Conference. October 15-18, Atlanta, Georgia, USA, 623-627. Kryvyy, P., Senyk, A., Kolomiets, V., Tymoshenko, N., Kryvinskyy, P., 2010. Statistic estimation of influence of cylindrical surfaces formation technology upon their deviations from circuliar form on the basisof harmonic analysis. Abstracts of International scientific conference of young scientists and students "Actual tasks of modern technology" (Tern., 21-22 December 2010), 53.