The effects of air-fuel ratio on automobiles vibrations

This paper studies the effect of the change in air-fuel ratio on the engine and automobiles vibrations. Principle of vibration analysis is used to determine the system behavior. Air-fuel ratio is studied, as an input parameter, for stoichiometric, rich and lean fuels. | The effects of air-fuel ratio on automobiles vibrations International Journal of Mechanical Engineering and Technology IJMET Volume 10 Issue 03 March2019 pp. 1351 1359 Article ID IJMET_10_03_136 Available online at http ijmet JType IJMET amp VType 10 amp IType 3 ISSN Print 0976-6340 and ISSN Online 0976-6359 IAEME Publication Scopus Indexed THE EFFECTS OF AIR-FUEL RATIO ON AUTOMOBILES VIBRATIONS Sayel M. Fayyad Abdel Salam Alsabagh Fadi Alfaqs Nehad A. Darweesh and Ahmad S. Awad Department of Mechanical Engineering Faculty of Engineering Technology Al-Balqa Applied University Amman Jordan ABSTRACT This paper studies the effect of the change in air-fuel ratio on the engine and automobiles vibrations. Principle of vibration analysis is used to determine the system behavior. Air-fuel ratio is studied as an input parameter for stoichiometric rich and lean fuels. Such changes in air-fuel ratios makes the engine and so the automobile to vibrate significantly. A benzene automobile with1800 CC - 4 cylinders engine is tested and an accurate vibrometer is used to sense such vibrations. It is found that there is an effect for the air-fuel mixture on the vibration of the engine and on the car as a whole. Rich mixtures have the highest frequencies at most record time. It is theoretically expected due to the high energy released by the combustion in which all of the oxygen is consumed. Key words Air-Fuel Ratio Vibrations Rich Mixture Lean Mixture engine Automobile. Stoichiometric. Cite this Article Sayel M. Fayyad Abdel Salam Alsabagh Fadi Alfaqs Nehad A. Darweesh and Ahmad S. Awad The Effects of Air-Fuel Ratio on Automobiles Vibrations International Journal of Mechanical Engineering and Technology 10 3 2019 pp. 1351 1359. http IJMET JType IJMET amp VType 10 amp IType 3 1. INTRODUCTION Automobiles bad vibrations cause many difficulties to drivers and passengers comfort. The automotive manufacturers are trying to adapt more from

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