N.A. Zemlyanushnov
Engineer, Postgraduate Student at the Department of technical exploitation of automobiles, North-Caucasus Federal University
THE FAILURES ANALYSIS OF VEHICLES UNITS AND SYSTEMS CAUSED BY THE RELAXATION OF AUTOMOBILE SPRINGS
The aim of the work is to set tasks for research on ensuring resource conservation and operational reliability improvement of vehicles units and systems by improving the technology of automobile springs recovering.
The relevance of the problem is due to the fact that automobile springs account for 18.2 % of failures of units and systems in which they are included.
Method of research: collection and analysis of statistical data of distribution of the major failure in motor vehicles units and systems based on the literature review and studied technological documents of the LLC commercial manufacturing company «Avtokranservis» in Stavropol.
Results: the failures analysis of vehicles units and systems caused by the loss of geometric and power characteristics of automobile springs or their breakage is carried out, the purpose and objectives of the study are formulated.
Keywords: automobile springs, relaxation of springs, power and geometric characteristics of springs, defect, failure.
References
1.  Bondarenko, E.V. Safety of vehicles taking into account the technical condition of elements of electric equipment / E.V. Bondarenko, R.H. Khasanov, E.S. Sidorin, V.S. Golovanov // World of transport and technological machinery. – 2012. – Vol. 2 (37). – pp. 100-107.
2. Zemlyanushnov, N.A. Theoretical background of the technology of automobilesprings from hardened spring wire recovering/ N.A. Zemlyanushnov, N.Y. Zemlyanushnova // Intellect. Innovation. Investments. – 2018. – Vol. 5. – pp. 68-79.
3. Zemlyanushnova, N.Y. Designing of cylindrical spiral compression spring during contact predeformation: monograph / N.Y. Zemlyanushnova. – Stavropol: AGRUS, 2008. – 136 p.
4. Znamensky, D.V. Research of performance variation of valve springs in operation / D.V.Znamensky, N.Y. Zemlyanushnova, V.V. Fadeev// Agricultural Bulletin of Stavropol Region.– 2014. – Vol. 2 (14). – pp. 43-47.
5. Katargin, V.N. The analysis of applicability and expediency of recovery repair of units of cars in modern / V.N. Katargin, I.S. Pisarev, S.V. Khmelnitsky// Truck. – 2013. – Vol. 6. – pp. 20-23.
6. Lyandenbursky, V.V. Analysis of primary trouble diesel fuel equipment / V. V. Lyandenbursky, S.А. Krivobok, I.V. Kuchin // World of transport and technological machinery. – 2013. – Vol. 4 (43). – pp. 13-18.
7. Lyandenbursky, V.V. Troubleshooting manual transmission car built in diagnosis // V.V. Lyandenbursky, M.V. Nefedov, V.N. Borovkov // Transport and transport-technological system: Materials International scientific and technical conference 15 April 2015, Tyumen / The Ministry of Education and Science, Federal State Educational Institution of Higher Education «Tyumen Industrial University». – Tyumen, 2015. – pp. 190-193.
8. Mkrtumian, V.S. Study of valve springs operation and development of a rational method of their recovery: author’s abstract dis. … Candidate of Technical Sciences: 05.20.03 / Mkrtumian Vagan Semenovich. – Moscow, 1958. – 196 p.
9. Rodionov, Y.V. The failure cause analysis of ball bearings of passenger cars / Y.V. Rodionov, A.A. Vojnov // Intellect. Innovation. Investments. – 2017. – Vol. 4. – pp. 79-83.
10. Khalfin, M.N. Increasing the life of the spring hydraulic lock lift car / M.N. Khalfin, N.Y. Zemlyanushnova // Actual problems of scientific-technical progress in agriculture: Materials International scientificand practical conference 15 May, Stavropol / The Ministry of Education and Science, Federal State Educational Institution of Higher Professional Education «Stavropol State Agrarian University». – Stavropol. – 2006. – Vol. 2. – pp. 143-147.
11. Elkin, S.Y. Development of technology for recovering of valve springs of mobile agricultural machinery engines using electromechanical processing: author’s abstract dis. … Candidate of Technical Sciences: 05.20.03 / Elkin Sergei Yurievich. – Saratov, 1984. – 196 p.
12. Mincer, J. Rockwell springs / J. Mincer // Automotive Industries. – 1988. – Vol. 1. – pp. 9-10.
13. Tomokazu Masudra. High Tensile Valve Spring Steel in Kobe Steel // 8th international congress of spring industry (ESF 8), September 2015, Prague, Czech.