An Algorithm for Setting the Dynamic Parameters of the Classic Distribution Mechanism

Florian Ion T. Petrescu(1*), Relly Victoria V. Petrescu(2)

(1) Senior Lecturer at UPB (Bucharest Polytechnic University), TMR (Theory of Mechanisms and Robots) department, Romania
(2) Senior Lecturer at UPB (Bucharest Polytechnic University), TTL (Transport, Traffic and Logistics) department, Romania
(*) Corresponding author


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Abstract


This paper presents an algorithm for setting the dynamic parameters of the classic distribution mechanism used in the internal combustion engines. New requirements of distribution mechanisms are that they can work at very high speeds without vibration or noise. Because of this, the settings of the valve spring must be pre-calculated rigorously. One sets the spring elastic constant k, and the spring pretension x0. The algorithm used is written in Excel.
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Keywords


Spring Elastic Constant; Spring Pretension; Algorithm; Excel

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References


Antonescu, P., Oprean, M., Petrescu, F. Analiza dinamică a mecanismelor de distribuţie cu came. În al VII-lea Simpozion Naţional de Roboţi Industriali, MERO'87, Bucureşti, 1987, Vol. III, p. 126-133.

Petrescu, F., Petrescu, R. Elemente de dinamica mecanismelor cu came. In al VII-lea Simpozion Naţional cu Participare Internaţională Proiectarea Asistată de Calculator, PRASIC'02, Braşov, 2002, Vol. I, p. 327-332.

Petrescu, F.I., Petrescu, R.V. Contributions at the dynamics of cams. In the Ninth IFToMM International Symposium on Theory of Machines and Mechanisms, SYROM 2005, Bucharest, Romania, 2005, Vol. I, p. 123-128.

Anderson D.G., Cam dynamics. Prod. Engineering, 24(10), 1953, p. 170-176.

Barabyi J.S., Cams, dynamics and design. Design News, 1969, 24, p. 108.

Dudley W.M., New Methods in Valve Cam Design. Trans. SAE, January 1948, 2, p. 19-33.

Hrones J.A., An analysis of Dynamic Forces in a Cam-Driver System, Trans. ASME, 1948, 70, p. 473-482.

Cheney R.E., Production of very accurate high-speed master cams. Machinery (London), 1962, 100(2570), p. 380-386.

Choi J.K., Kim S.C., Hyundai Motor Co. Korea, An Experimental Study on the Frictional Characteristics in the Valve Train System. (945046), In FISITA CONGRESS, 17-21 October 1994, Beijing, p. 374-380.

Koster M.P., The effects of backlash and shaft flexibility on the dynamic behaviour of a cam mechanism. In, Cams and cam mechanisms, 1974, p. 141-146.

Kerle H., How effective is the method of finite differences as regards simple cam mechanisms. Cams and cam mechanisms, 1974, p. 131-135.

Mercer S., Dynamic characteristics of cam forms calculated by the digital computer. Trans. ASME, Nov. 1958, 80, p. 1695-1705.

Beard C.A., Problems în valve gear design and instrumentation. SAE Technical Progress Series, 1963, p. 58-84.

Barkan P., s.a., A spring-actuated, cam follower system; Design theory and experimental result. Journal Engineering, Trans. ASME, 1965,(87 B), p. 279-286.

Baxter M.L., Qurvature-acceleration relation for plane cams. Trans. ASME 70,1948, p.483-489.

Bishop J.L.H., An analytical approach to automobile valve gear design. Inst. of Mech. Engrs. Auto-Division Proc. 4, 1950-51, p. 150-160.

Taraza, D., "Accuracy Limits of IMEP Determination from Crankshaft Speed Measurements," SAE Transactions, Journal of Engines 111, p. 689-697, 2002.

Petrescu, F.I., Petrescu, R.V. Determining the dynamic efficiency of cams. In the Ninth IFToMM International Symposium on Theory of Machines and Mechanisms, SYROM 2005, Bucharest, Romania, 2005, Vol. I, p. 129-134.

Petrescu, F.I., Petrescu, R.V., Popescu N., The efficiency of cams. In the Second International Conference “Mechanics and Machine Elements”, Technical University of Sofia, November 4-6, 2005, Sofia, Bulgaria, Vol. II, p. 237-243.

Petrescu, F.I., Petrescu, R.V., Contribuţii la sinteza mecanismelor de distribuţie ale motoarelor cu ardere internă. În a V-a Conferinţă "Economicitatea, Securitatea şi Fiabilitatea Autovehiculelor", ESFA'95, Bucureşti, 1995, Vol. I, p. 257-264.

Petrescu, F.I., Petrescu, R.V., Sinteza mecanismelor de distribuţie prin metoda coordonatelor rectangulare (carteziene). In The VII-th Edition of the National Conference With International Participation, GRAFICA-2000, Craiova, Romania, 2000, p. 297-302.

Petrescu, F.I., Petrescu, R.V., Designul (sinteza) mecanismelor cu came prin metoda coordonatelor polare (metoda triunghiurilor). In The VII-th Edition of the National Conference With International Participation, GRAFICA-2000, Craiova, Romania, 2000, p. 291-296.

Petrescu, F.I., Petrescu, R.V., Dinamica mecanismelor de distributie, Create Space publisher, USA, December 2011, ISBN 978-1-4680-5265-7, 188 pages, Romanian version.

Petrescu, F.I., Bazele analizei și optimizării sistemelor cu memorie rigidă – curs și aplicații, Create Space publisher, USA, 2012, ISBN 978-1-4700-2436-9, 164 pages, Romanian edition.

Petrescu, F.I., Teoria mecanismelor – Curs si aplicatii (editia a doua), Create Space publisher, USA, September 2012, ISBN 978-1-4792-9362-9, 284 pages, Romanian version.

Z. Ge, a.o., Mechanism Design amd Dynamic Analysis of Hybrid Cam-linkage Mechanical Press, Key Engineering Materials Journal, Vol. 474-476 (2011), p. 803-806.

Z. Ge, a.o., CAD/CAM/CAE for the Parallel Indexing Cam Mechanisms, Applied Mechanics and Materials Journal, Vol. 44-47 (2011), p. 475-479.

Ghazimirsaied, A., Jazayeri, S.A., Shamekhi, A.H., Improving volumetric efficiency using intake valve lift and timing optimization in SI engine, (2010) International Review of Mechanical Engineering (IREME), 4 (3), pp. 244-252.

Sedighi, H.M., Shirazi, K.H., Using homotopy analysis method to determine profile for disk cam by means of optimization of dissipated energy, (2011) International Review of Mechanical Engineering (IREME), 5 (5), pp. 941-946.

M. Liu, Z. Qian, Research on Reverse Design of the Cam Mechanism, Applied Mechanics and Materials Journal, Vol. 43 (2011), p. 551-554.

Y. Samim, a.o., Analytical Dynamic Response of Elastic Cam-Follower Systems with Distributed Parameter Return Spring, Journal of Mechanical Design (ASME), Vol. 115, Issue 3, (online June 2008), p. 612-620.

Shriram, R., Mari Ram Kumar, M., Vignesh Aadhithya, T., Vijaya Ramnath, B., Design and development of camless valve train for I.C. engines, (2012) International Review of Mechanical Engineering (IREME), 6 (5), pp. 1044-1049.

W. Wang, Creation Design of Cam Mechanism Based on Reverse Engineering, Advanced Materials Research Journal, Vol. 230-232 (2011), p. 453-456.

F. Xianying, a.o., Meshing Efficiency of Globoidal Indexing Cam Mechanism with Steel Ball, Advanced Materials Research Journal, Vol. 413 (2012), p. 414-419.

H.D. Zhao, a.o., Research on Dynamic Behavior of Disc Indexing Cam Mechanism Based on Virtual Prototype Technology, Key Engineering Materials Journal, Vol. 499 (2012), p. 277-282.

G. Zhou, a.o., Seriation Design and Research on Cam Shedding Mechanism of Looms, Advanced Materials Research Journal, Vol. 479-481 (2012), p. 2383-2388.


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