Ivan Mahalec
The paper considers the surge of a spring, retained at oneend and controlled by a cam at the other end. The periodic liftfunction of the cam was approximately replaced by the Fourierpoly nom. The forced displacement amplitudes were determinedfor each harmonic of this poly nom. The theory of forced longitudinal vibrations of a bar with continuously distributed mass,elasticity and dumping was applied to simulate the motion ofspring coils. It was found out that two or more modes may consistconcurrently in the spring. This was obtained by analyzingmathematical formulas and by comparing computed and publishedmeasured results. The line spectrum of the Fourier serieswas introduced as a useful tool for estimating the influence ofthe high order harmonics on the spring surge.
HUSSMANN, A.: Schwingungen in schraubenformigen
Ventilfedern. Dissertation, TH Berlin, 1938 .
STRAUBEL, M.: Beitrag zur Erjassung und Beeinjlussung
des Schwingungsverhalten van Nockengetrieben. Dissertation,
TH Miinchen, 1964.
KLOTTER, K.: Technische Schwingungslehre, Erster
Band: Einfache Schwinger, Teil A: Lineare Schwingungen.
Dritte Auflage, Springer-Verlag Berlin Heidelberg New
York 1981, ISBN 3-540-08673-0.
BRONSTEJN, I. N., SEMENDJAJEV, K. A.:
Matematic'ki prirucnik za inzenjere i studente. Tehnicka
knjiga Zagreb, 1964.
HAFNER, K. E.: Investigating the Dynamic Behaviour of
Valve Mechanisms with Engineering Vibration Methods,
'lOth International Congress Combustion Engines'. New
York, 1973, str. 313-337.
ROSKILLY, M., FERAN, W. H.: Valve Gear Design
Analysis. XXI Fisita Congress, Belgrade 1986, Paper
Application of Computers in Valve Gear Design. SAE Inc.
New York 1963, Library of
Guest Editor: Eleonora Papadimitriou, PhD
Editors: Marko Matulin, PhD, Dario Babić, PhD, Marko Ševrović, PhD
The mission of our journal is to provide high quality communication of research results, which is crucial for the effectiveness of scientific research, the promotion of scientific information, new ideas, and original research in the field of traffic and transportation engineering.
1848-4069
0353-5320
Proud publisher
Accelerating Discoveries in Traffic Science |
2024 © Promet - Traffic&Transportation journal
