Technique for conducting experimental studies on stress-strain state of P-3 profile interference fits

Cover Page

Cite item

Full Text

Abstract

In mechanical engineering the following profile connections are applied most often: with three sides (P-3); with three cut off sides (PC-3); with four cut off sides (PC-4) and with five sides (P-5 and PC-5). Despite considerable results, in the field of studying of stresses and deformations at contact interaction of solid bodies of various forms there is an unresolved number of tasks, which are of scientific and practical value. As the analysis of theoretical and experimental studies of motionless detachable and non-detachable connections (cylindrical, profile) has shown, there are unresolved tasks, in particular regarding the choice of geometrical form of contour curves, the magnitude of interference fit of motionless, non-detachable profile connections with equiaxial contour. The working capacity and reliability polygon profile connections with interference fit is defined by their strength, that is ability of elements to resist strain when in use. For the purpose of determination of working capacity of polygon profile connections with interference fit with respect to strength, stresses and deformations arising in hub with polygon profile opening from the action of polygon profile shaft installed in a nave with interference fit. The article considers the technique of conducting experimental studies by strain-gauging method for the purpose of assessing the influence of structural parameters and external loadings on stress-strain state of parts of the connection. Based on the experimental results tables of comparative characteristics of the recommended types of interference fits for P-3 profile connections and also the recommended interference fits for the corresponding n values of P-3 profile shaft-nave connections applied for tooth gearings were composed.

About the authors

Elena A Rozhkova

Irkutsk state transport university; Transbaikal Institute of Railway Transport

Author for correspondence.
Email: helenuys@mail.ru

Candidate of Technical Sciences, associate professor at “The rolling stock of the railroads” department, Irkutsk state transport university. Research interests: machine science, drive systems, machine parts

15, Chernyshevsky str., Irkutsk, 664074, Russian Federation; 11, Magistralnaya str., Chita, 672040, Russian Federation

Sergey V Chetverikov

Irkutsk state transport university; Transbaikal Institute of Railway Transport

Email: helenuys@mail.ru

Candidate of Technical Sciences, associate professor at “The rolling stock of the railroads” department, Irkutsk state transport university. Research interests: machines, units and processes.

15, Chernyshevsky str., Irkutsk, 664074, Russian Federation; 11, Magistralnaya str., Chita, 672040, Russian Federation

References

  1. Grigorieva O.A. Tehnologicheskoe obespechenie prochnosti profil’nyh nepodvizhnyh soedinenii uprogoplasticheskim deformirovaniem elementov soedineniya [Technological provision of strength of motionless profile connections by elasto-plastic deformation of elements of connection]. Cand. of Science in Engineering (Dissertation). Omsk: Ohm of GTU, 2004. (in Russ).
  2. Ilinykh V.A. Raschet i vybor konstruktivnyh parametrov profil’nyh soedinenii s ravnoosnym konturom [Calculation and choice of structural parameters for profile connections with equiaxial contour]. Author’s thesis. … Cand.Tech.Sci. Moscow: MVTU publ., 1987. P. 10—15. (in Russ).
  3. Rozhkova E.A. linIykh V.A. Sample fabrication and experimental stand development for testing RK-3 profile join toughness. Modern technologies. System analysis. Modeling. Scientific journal. Irkutsk: IrGUPS publ., 2011. No. 3(31). 246 p. (in Russ).
  4. Rozhkova E.A., Ilinyh V.A. The calculation on toughness of rk-profile connection. Sovremennye tehnologii. Sistemnyj analiz. Modelirovanie. 2012. No. 2 (34). P. 17—21. (in Russ).
  5. Rozhkova E.A., Ilinykh V.A. Eksperimental’nye issledovaniya RK-3 profil’nyh soedinenii s natyagom [Experimental studies of P-3 profile connections with interference fit]. Transport infrastructure of the Siberian region: Materials of the fourth All-Russian scientific and practical conference with the international participation, on May 13—17, 2013 Irkutsk: In 2 t. Irkutsk: IrGUPS publ., 2013. (in Russ).
  6. Rozhkova E.A. Choosing design parameters of the profile connections with three-edged equiaxed shape for different working conditions. Systems. Methods. Technologies. Bratsk: BRGU, 2014. No. 1(21). P. 40—45. (in Russ).
  7. Rozhkova E.A., Ilinykh V.A., Yarilov V.E. Analiz napryazhenno-deformirovannogo sostoyaniya vzaimodeistviya detalei RK-3 profil’nogo soedineniya s natyagom metodom konechnyh elementov (MKE) [Stress-strain state analysis of interaction of parts of P-3 profile connection with interference fit by finite element method (FEM)]. The messenger of SAMGUPS, Samara: SamGUPS publ., 2016. No. 4. P. 35—41. (in Russ).
  8. Tenzometriya v mashinostroenii [Strain-gauging in mechanical engineering]. Handbook. Under the editorship of Cand.Tech.Sci. R.A. Makarov. Moscow: Mechanical engineering publ., 1975. 288 p. (in Russ).

Copyright (c) 2018 Rozhkova E.A., Chetverikov S.V.

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

This website uses cookies

You consent to our cookies if you continue to use our website.

About Cookies