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https://hdl.handle.net/11499/8488
Title: | Dynamic and vibration analysis of a single cylinder diesel engine |
Authors: | Öztürk, Erkan Karabulut, H. |
Keywords: | Dynamics modeling Mount design Piston engine Vibration Angular motions Angular vibrations Damping constants Engine blocks Engine load Force data Four stroke diesel engines Four-degrees-of-freedom Gas force Horizontal vibration Piston engines Piston rod Pressure profiles Single-cylinder diesel engine Speed fluctuations Translational vibration Vertical vibrations Crankshafts Diesel engines Dynamic models Engine pistons Engines Vibration analysis Engine cylinders |
Abstract: | In this study, by preparing a dynamic model for the system consisting of piston, piston rod, crankshaft and block of a single cylinder four stroke diesel engine, the speed fluctuations of the crankshaft and translational vibrations of the engine block were examined. The dynamic model has four degrees of freedom as; the angular motion of the crankshaft, the angular motion of the engine block around the crankshaft center, and the translational vibrations of the engine block in the vertical and horizontal directions. In the analysis, the pressure profiles obtained from a single cylinder four stroke diesel engine at four different engine loads were used. The oscillation of crankshaft angular velocity was found to be increasing with the engine load. The angular vibrations of the engine block around the crankshaft center was found to be arising from the gas forces, the translational vibrations in the vertical and horizontal directions were found to be arising from the inertia of piston and unbalance of crankshaft. It was found that the counterweight used for minimizing the vertical vibration generates a horizontal vibration besides reducing vertical vibration. Therefore, reduction of its amplitude into the half was found to be more appropriate, instead of reducing to zero. From the mount force datum, which is dependent on frequency, the optimum spring and damping constants of the mounts were found as 100 kN/m and 1000 Ns/m, respectively. |
URI: | https://hdl.handle.net/11499/8488 |
ISSN: | 1300-1884 |
Appears in Collections: | Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection Teknoloji Fakültesi Koleksiyonu WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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