FreqNess : A vibration Analysis Application for Engine Mount Systems
Jose, Navarro Jacome (2021)
2021
All rights reserved. This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited.
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-2021061415936
https://urn.fi/URN:NBN:fi:amk-2021061415936
Tiivistelmä
This thesis was commissioned by Novia University of Applied Sciences to improve the vibration force isolation of a laboratory engine (Sisudiesel 420 DWI). Excessive vibration is a major contributory factor of internal combustion engines (IC) inefficiencies impacting everything from increased structural fatigue to excessive noise.
The purpose of this thesis was to develop a program in MATLAB to analyze the vibration outcomes of a general engine mount system. The resultant application called FreqNess is able to perform a complete vibration analysis by the introduction of basic engine and vibration isolator specifications. Moreover, this intuitive and user-friendly application was found to be an appropriate tool for monitoring and offering vibration guidance applicable to a wide range of other engine mount systems. In this document, the instructions for future users on how to best operate FreqNess are presented, together with general guidance on vibration isolation theory.
With respect to the specific case and after an analysis performed by FreqNess, the application demonstrated that the current vibration isolators of the Sisudiesel 420 DWI system do not accomplish the customer vibration isolation requirements in a vast range of engine speed scenarios. The findings provide a starting point for the creation of software that can analyze any type of machine where vibration isolators are implemented.
The purpose of this thesis was to develop a program in MATLAB to analyze the vibration outcomes of a general engine mount system. The resultant application called FreqNess is able to perform a complete vibration analysis by the introduction of basic engine and vibration isolator specifications. Moreover, this intuitive and user-friendly application was found to be an appropriate tool for monitoring and offering vibration guidance applicable to a wide range of other engine mount systems. In this document, the instructions for future users on how to best operate FreqNess are presented, together with general guidance on vibration isolation theory.
With respect to the specific case and after an analysis performed by FreqNess, the application demonstrated that the current vibration isolators of the Sisudiesel 420 DWI system do not accomplish the customer vibration isolation requirements in a vast range of engine speed scenarios. The findings provide a starting point for the creation of software that can analyze any type of machine where vibration isolators are implemented.