A Study On Gasoline Engine Abnormal Valve Clearance Using Accelerometer Analyzed By Vibration Signature Analysis

Farid Waradi, Muhammad Fadli (2018) A Study On Gasoline Engine Abnormal Valve Clearance Using Accelerometer Analyzed By Vibration Signature Analysis. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

Text (24 Pages) A Study On Gasoline Engine Abnormal Valve Clearance Using Accelerometer Analyzed By Vibration Signature Analysis.pdf - Submitted Version Download (288kB)

Abstract

Faults will likely to happen in a mechanical system over a period of time due to many factors.Fault can turn into a failure over a time and affect the performance of a system if it is not detected and execute a proper maintenance.Once failure occur,it will increase the cost of maintenance,reduce lifetime,and the efficiency will drop.Vibration signature analysis (VSA) is a technique that can be a useful tool for vibration monitoring of a rotating and reciprocating mechanical systems.This type of condition monitoring (CM) technique is an approach for increasing the availability and reliability of a system. Fault detection in internal combustion engine (ICE) is a common and continuous studies performed by researchers in order to improve to an advance solution for solving the related problem to this type of mechanical system.In this paper,an analysis was carried out on ICE of an engine vehicle with overhead valve (OHV) single overhead cam (SOHC) petrol engine.The purpose of this study is to investigate the effectiveness of VSA on a valve train system with simulated condition (normal clearance and abnormal clearance) at the intake valve.The abnormal clearance for the valve was adjusted to 0 mm,0.2 mm,and 0.3 mm to observe the effects of the simulated condition towards the effectiveness of the proposed statistical technique.The results of the experimental work reveal that the proposed technique is a good indicator to diagnose the simulated fault.This also will be a useful tool for condition monitoring of valve clearance in ICE.

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