Computer#aided design of the pump profile with epicycloidal gearing using MathCad tools

Cover Page

Abstract


The article discusses a method for determining the relative eccentricity χ, used in calculating the thermal balance of an internal combustion engine sliding bearing. When performing this calculation, a number of temperature values are set in the bearing oil layer. For each set temperature, the engine oil viscosity value μ and the bearing load factor Ф are determined. To determine the relative eccentricity, graphical dependencies of the load factor on the relative eccentricity are used as input data. The thermal calculation of the sliding bearing showed that the accuracy of determining the relative eccentricity χ is of great importance. Their inaccurate definition leads to a failure of the thermal balance in the bearing. In addition, the method of determining the value of χ by the accepted value of the ratio of the working length of the bearing to the diameter of the connecting rod neck of the crankshaft (graphically) for this calculation is quite time-consuming. For this reason, the graphical method for determining χ has been replaced with an analytical one. Relative eccentricities were obtained using the least squares method. An algorithm has been developed for automated construction of transverse and longitudinal profiles of an oil pump with epicycloidal engagement.


About the authors

Pablo Ramon Vallejo Maldonado

Peoples’ Friendship University of Russia (RUDN University)

Author for correspondence.
Email: prvm@rambler.ru
6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation

Associate Professor of the Department of Mechanical Engineering and Instrumentation of Engineering Academy of RUDN University, PhD

Viktorina A. Romanova

Peoples’ Friendship University of Russia (RUDN University)

Email: prvm@rambler.ru
6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation

Professor of the Department of Construction of Engineering Academy of RUDN University, PhD.

Messias de Jesus Augusto Campos

Peoples’ Friendship University of Russia (RUDN University)

Email: prvm@rambler.ru
6 Miklukho-Maklaya St, Moscow, 117198, Russian Federation

master’s degree student of the Department of Mechanical Engineering and Instrumentation of Engineering Academy of RUDN University

References

  1. Lukanin VN, Alekseev IV, et al. Dvigateli vnutrennego sgoranija [Internal combustion engine]: in 3 books. Book 2. Dinamika i konstruirovanie [Dynamics and designing]: textbook. 2nd ed. Moscow: Vysshaja shko-la Publ.; 2007. (In Russ.)
  2. Chajnov ND, Krasnokutskij AN, Mjagkov LL. Konstruirovanie i raschet porshnevyh dvigatelej [De-sign and calculation of piston engines]: textbook for universities. Мoscow: MGTU imeni N.Je. Baumana Publ.; 2018. (In Russ.)
  3. Tipej N, Konstantinesku VN, Nika Al, Bicje O. Podshipniki skol'zheniya: raschet, proektirovanie, smazka [Plain bearings: calculation, design, lubrication]. Bucharest: Publishing house of Academy of the Roma-nian People’s Republic; 1964.
  4. Vallejo Maldonado PR, Grishin DK. Raschet podshipnikov skol'zhenija avtotraktornyh dvigatelej [Calculation of sliding bearings of automotive engines]: a guide to the implementation of the course and diploma project on the course “Design and Calcu-lation of Internal Combustion Engines”. Мoscow: RUDN University Publ.; 2007. (In Russ.)
  5. Vallejo Maldonado PR, Grishin DK. Kinemat-ika i dinamika krivoshipno-shatunnogo mehanizma porshnevogo dvigatelja vnutrennego sgoranija [Kin-ematics and dynamics of the crank mechanism of a piston internal combustion engine]: a training manual for practical and laboratory work. Мoscow: MGTU “MAMI” Publ.; 2011. (In Russ.)
  6. Orlov PI. Osnovy konstruirovanija [Design ba-sics]: reference manual: in 2 books. Book 2. 3rd ed. Мoscow: Mashinostroenie Publ.; 1988. (In Russ.)
  7. Kolchin AI, Demidov VP. Raschet avtomo-bil'nyh i traktornyh dvigatelej [Calculation of auto-mobile and tractor engines]. 4th ed. Мoscow: Vysshaja shkola Publ.; 2008. (In Russ.)
  8. Bashirov RM. Avtotraktornye dvigateli. Kon-strukcija, osnovy teorii i rascheta [Automotive engines. Construction, fundamentals of theory and calcula-tion]: textbook for universities. 3rd ed. Saint Peters-burg: Lan’ Publ.; 2017. (In Russ.)
  9. Vallejo Maldonado PR, Chajnov ND. Kinemat-ika i dinamika avtomobil'nyh porshnevyh dvigatelej [Kinematics and dynamics of automobile piston en-gines]: textbook. Мoscow: INFRA-M Publ.; 2020. P. 283. doi: 10.12737/989072. (In Russ.)
  10. Gusarov VV. Dinamika dvigatelej: uravnoveshivanie porshnevyh dvigatelej [Engine dynamics: bal-ancing piston engines]: a textbook for universities. 2nd ed. Мoscow: Jurajt Publ.; 2020. (In Russ.)
  11. Andrienko LA, Bajkov BA, Ganulich IK, et al. Detali mashin [Details of machines]: textbook for universities. 3rd ed. Мoscow: MGTU imeni N.Je. Baumana Publ.; 2007. (In Russ.)
  12. Vallejo Maldonado PR, Runovskij KS. Avtomatizirovannoe postroenie teoreticheskoj dia-grammy iznosa podshipnika skol'zhenija shatunnoj shejki kolenchatogo vala dvigatelja i opredelenie srednej nagruzki na shatunnyj podshipnik za period maksimal'nyh davlenij v nem (PO “APTIPODSSh KVD”) [Automated construction of the theoretical diagram of the wear of the sliding bearing of the con-necting rod journal of the crankshaft of the engine and deter-mination of the average load on the connecting rod bearing for the period of maximum pressures in it (|PO “APTIPODSH KVD”)]: certificate of state registration of the comput-er program No. 2016615126. May17, 2016. (In Russ.)
  13. Vallejo Maldonado PR, Krasnokutskij AN, Chajnov ND. Avtomatizirovannyj raschet vynoslivosti ko-rennyh sheek kolenchatogo vala po razreznoj sheme [Automated calculation of the endurance of the crankshaft main journals according to the split scheme]: certificate of state registration of the computer program No. 2019616817. May 29, 2019. (In Russ.)
  14. Vallejo Maldonado PR, Grishin DK. Avtoma-tizacija rascheta iznosa shatunnoj shejki kolenchato-go vala chetyrehtaktnogo rjadnogo dvigatelja [Auto-mation of the calculation of wear of the connecting rod neck of the crankshaft of a four-stroke inline engine]. Vestnik mashinostroenija. 2009;(6):11–13. (In Russ.)
  15. Shatrov MG, Alekseev IV, Bogdanov SN, et al. Avtomobil'nye dvigateli: kursovoe proektirovanie [Automotive engines: coursework design]: a textbook for university students. 2nd ed. Мoscow: Akademija Publ.; 2012. (In Russ.)
  16. Taktarov NG. Spravochnik po vysshej ma-tematike dlja studentov vuzov [Handbook of higher mathematics for university students]. Мoscow: Libro-kom Publ.; 2017. (In Russ.)
  17. Beniovich VS, Apazidi GD, Bojko AM. Ro-torno-porshnevye dvigateli [Rotary-piston engines]. Мoscow: Mashinostroenie Publ.; 1968. (In Russ.)
  18. Lai TS. Design and machining of the epicy-cloid planetary gear of cycloid drives. Intern. J. Adv. Manufact. Tech. 2006;28:665–670.

Statistics

Views

Abstract - 144

PDF (Russian) - 60

Cited-By


PlumX


Copyright (c) 2020 Vallejo Maldonado P.R., Romanova V.A., Campos M.d.

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