VIBRATION ANALYSIS OF CI ENGINE USING FFT ANALYZER

Namdev A. Patil, Laukik P. Raut

Abstract: In automobile industry, the vibrations generated in the IC engine affects the performance of the vehicle and quality of comfort while riding the vehicle. The factors which are affected under continuous vibration of IC engine are drivability, stability and comfort. All these factors are reducing while there is an increase in vibrations produced by the engine. Reciprocating as well as rotating parts of the engine are producing vibrations continuously in the internal combustion engine. The inertial forces are produced by these reciprocating and rotating parts. These inertial forces are changing with compression and combustion characteristics inside the engine. The vibrations produced by the engine can be minimized by reducing those unbalanced forces generated during its functioning, otherwise anti vibration mounts are placed in between engine and its base. Many researchers have performed experimentations to see reasons behind the vibration generations also to reduce vibrations at interface between engine and its base. In this paper a thorough collection of data related to engine vibrations is made to provide a platform for future work. It encompasses various work carried on engine rigid body modeling. The paper is framed as engine rigid body modeling, engine vibrations in detail and at last some experimental work performed on a single cylinder diesel engine to measure vibrations using FFT spectrum analyzer

Keywords: Internal combustion engine, Engine Rigid Body, Vibration , FFT Analyzer.

DOI: https://doi.org/10.15623/ijret.2016.0501060