Design of single cylinder variable compression ratio 4-stroke engine

This thesis is about designing a new method to increase engines efficiency. The method used in this study is variable compression ratio (VCR) engines, where the compression ratio of the engine can be changed according to driving conditions. A mechanism of VCR is designed and simulated. The motion an...

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Main Author:	Firdaus Haikal, Ramli
Format:	Undergraduates Project Papers
Language:	English English English English
Published:	2012
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/4593/ http://umpir.ump.edu.my/id/eprint/4593/ http://umpir.ump.edu.my/id/eprint/4593/1/Design%20of%20single%20cylinder%20variable%20compression%20ratio%204-stroke%20engine%20%28Table%20of%20content%29.pdf http://umpir.ump.edu.my/id/eprint/4593/2/Design%20of%20single%20cylinder%20variable%20compression%20ratio%204-stroke%20engine%20%28Abstract%29.pdf http://umpir.ump.edu.my/id/eprint/4593/3/Design%20of%20single%20cylinder%20variable%20compression%20ratio%204-stroke%20engine%20%28Chapter%201%29.pdf http://umpir.ump.edu.my/id/eprint/4593/4/Design%20of%20single%20cylinder%20variable%20compression%20ratio%204-stroke%20engine%20%28References%29.pdf

id	ump-4593
recordtype	eprints
spelling	ump-45932017-04-06T02:04:09Z http://umpir.ump.edu.my/id/eprint/4593/ Design of single cylinder variable compression ratio 4-stroke engine Firdaus Haikal, Ramli TJ Mechanical engineering and machinery This thesis is about designing a new method to increase engines efficiency. The method used in this study is variable compression ratio (VCR) engines, where the compression ratio of the engine can be changed according to driving conditions. A mechanism of VCR is designed and simulated. The motion analysis is used to analyze the VCR mechanism and engines component behaviour under different compression ratio. Solidworks simulation software is used to perform the motion analysis. The data of stress distribution, deformation of engines component and factor of safety (FOS) from the simulation are used to determine whether the components are safe to operate at compression ratio higher than the original. Yamaha FZ150i engine has been chosen as the baseline engine design. The engine are disassembled and modelled in solidworks in order to perform the simulation. The engine is simulated at 2000 rpm and the compression ratio are varies between 8:1 and 18:1. The result from of the simulation indicates that the compression ratio can safely be increased up to 12:1 with the original engines component specifications. If higher compression ratio wanted to be used, the specification of the engines component (piston and connecting rod) needed to be changed .However, since the Factor of safety (FOS) value of the components is critical at certain compression ratio, the fatigue and thermal analysis is purposed to be carried out in order to obtain more accurate result. 2012-06 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/4593/1/Design%20of%20single%20cylinder%20variable%20compression%20ratio%204-stroke%20engine%20%28Table%20of%20content%29.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/4593/2/Design%20of%20single%20cylinder%20variable%20compression%20ratio%204-stroke%20engine%20%28Abstract%29.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/4593/3/Design%20of%20single%20cylinder%20variable%20compression%20ratio%204-stroke%20engine%20%28Chapter%201%29.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/4593/4/Design%20of%20single%20cylinder%20variable%20compression%20ratio%204-stroke%20engine%20%28References%29.pdf Firdaus Haikal, Ramli (2012) Design of single cylinder variable compression ratio 4-stroke engine. Faculty of Mechanical Engineering, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:72779&theme=UMP2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English English English English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Firdaus Haikal, Ramli Design of single cylinder variable compression ratio 4-stroke engine
description	This thesis is about designing a new method to increase engines efficiency. The method used in this study is variable compression ratio (VCR) engines, where the compression ratio of the engine can be changed according to driving conditions. A mechanism of VCR is designed and simulated. The motion analysis is used to analyze the VCR mechanism and engines component behaviour under different compression ratio. Solidworks simulation software is used to perform the motion analysis. The data of stress distribution, deformation of engines component and factor of safety (FOS) from the simulation are used to determine whether the components are safe to operate at compression ratio higher than the original. Yamaha FZ150i engine has been chosen as the baseline engine design. The engine are disassembled and modelled in solidworks in order to perform the simulation. The engine is simulated at 2000 rpm and the compression ratio are varies between 8:1 and 18:1. The result from of the simulation indicates that the compression ratio can safely be increased up to 12:1 with the original engines component specifications. If higher compression ratio wanted to be used, the specification of the engines component (piston and connecting rod) needed to be changed .However, since the Factor of safety (FOS) value of the components is critical at certain compression ratio, the fatigue and thermal analysis is purposed to be carried out in order to obtain more accurate result.
format	Undergraduates Project Papers
author	Firdaus Haikal, Ramli
author_facet	Firdaus Haikal, Ramli
author_sort	Firdaus Haikal, Ramli
title	Design of single cylinder variable compression ratio 4-stroke engine
title_short	Design of single cylinder variable compression ratio 4-stroke engine
title_full	Design of single cylinder variable compression ratio 4-stroke engine
title_fullStr	Design of single cylinder variable compression ratio 4-stroke engine
title_full_unstemmed	Design of single cylinder variable compression ratio 4-stroke engine
title_sort	design of single cylinder variable compression ratio 4-stroke engine
publishDate	2012
url	http://umpir.ump.edu.my/id/eprint/4593/ http://umpir.ump.edu.my/id/eprint/4593/ http://umpir.ump.edu.my/id/eprint/4593/1/Design%20of%20single%20cylinder%20variable%20compression%20ratio%204-stroke%20engine%20%28Table%20of%20content%29.pdf http://umpir.ump.edu.my/id/eprint/4593/2/Design%20of%20single%20cylinder%20variable%20compression%20ratio%204-stroke%20engine%20%28Abstract%29.pdf http://umpir.ump.edu.my/id/eprint/4593/3/Design%20of%20single%20cylinder%20variable%20compression%20ratio%204-stroke%20engine%20%28Chapter%201%29.pdf http://umpir.ump.edu.my/id/eprint/4593/4/Design%20of%20single%20cylinder%20variable%20compression%20ratio%204-stroke%20engine%20%28References%29.pdf
first_indexed	2023-09-18T21:59:19Z
last_indexed	2023-09-18T21:59:19Z
_version_	1777414291534643200

Design of single cylinder variable compression ratio 4-stroke engine

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