Design of a dynamometer engine coupling shaft

In measuring the power output of an engine, the engine has to be coupled to a load device known as dynamometer. The coupling is done by means of a solid shaft. The proper couplings and shaft are required for the connection to avoid any failure to the engine or the dynamometer. Unsuitable selection c...

Full description

Bibliographic Details
Main Author:	Mohd Hasnun Ariff, Hassan
Format:	Thesis
Language:	English
Published:	2012
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/3587/ http://umpir.ump.edu.my/id/eprint/3587/1/MOHD_HASNUN_ARIF_BIN_HASSAN_u.PDF

id	ump-3587
recordtype	eprints
spelling	ump-35872018-09-25T08:29:20Z http://umpir.ump.edu.my/id/eprint/3587/ Design of a dynamometer engine coupling shaft Mohd Hasnun Ariff, Hassan TJ Mechanical engineering and machinery In measuring the power output of an engine, the engine has to be coupled to a load device known as dynamometer. The coupling is done by means of a solid shaft. The proper couplings and shaft are required for the connection to avoid any failure to the engine or the dynamometer. Unsuitable selection could lead to undesired problems such as torsional vibrations, vibration of the engine and dynamometer, whirling of the coupling shaft, damage of the bearings, engine starting problem or immoderate wear of the shaft line components. The commonly encountered problem is the resonance in torsional vibration, which results in disastrous failure of the shaft due to excessive vibration. This project is aimed to study the appropriate design of the shaft to be used in the dynamometer-engine coupling to prevent the system from undergoing unwanted problems. The theoretical calculations involve in the design are presented. The dimension of the coupling shafts for engines with various maximum torques are estimated. It is shown that the diameter of the shaft is proportional to the maximum torque of the engine given that the same coupling is used for every system, whereas the length of the shaft is almost equal for every engine. The diameter of the shaft is a vital parameter compared to its length. For engines with the maximum torque vary from 40 to 200 Nm, the same shaft length of 500 mm can be used but with increasing shaft diameter as the maximum torque increases. For a 40 Nm engine, the shaft diameter of 20 mm generated acceptable result. The shaft diameter was increased by 5 mm as the maximum torque increases and acceptable results were obtained. On the other hand, by using aluminium instead of steel as the material of the shaft, lower critical engine speed is obtained given that the same dimension of the shaft is used. This is due to the fact that aluminium possesses lower modulus of rigidity in comparison to steel. 2012-04 Thesis NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/3587/1/MOHD_HASNUN_ARIF_BIN_HASSAN_u.PDF Mohd Hasnun Ariff, Hassan (2012) Design of a dynamometer engine coupling shaft. Masters thesis, Universiti Malaya.
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Mohd Hasnun Ariff, Hassan Design of a dynamometer engine coupling shaft
description	In measuring the power output of an engine, the engine has to be coupled to a load device known as dynamometer. The coupling is done by means of a solid shaft. The proper couplings and shaft are required for the connection to avoid any failure to the engine or the dynamometer. Unsuitable selection could lead to undesired problems such as torsional vibrations, vibration of the engine and dynamometer, whirling of the coupling shaft, damage of the bearings, engine starting problem or immoderate wear of the shaft line components. The commonly encountered problem is the resonance in torsional vibration, which results in disastrous failure of the shaft due to excessive vibration. This project is aimed to study the appropriate design of the shaft to be used in the dynamometer-engine coupling to prevent the system from undergoing unwanted problems. The theoretical calculations involve in the design are presented. The dimension of the coupling shafts for engines with various maximum torques are estimated. It is shown that the diameter of the shaft is proportional to the maximum torque of the engine given that the same coupling is used for every system, whereas the length of the shaft is almost equal for every engine. The diameter of the shaft is a vital parameter compared to its length. For engines with the maximum torque vary from 40 to 200 Nm, the same shaft length of 500 mm can be used but with increasing shaft diameter as the maximum torque increases. For a 40 Nm engine, the shaft diameter of 20 mm generated acceptable result. The shaft diameter was increased by 5 mm as the maximum torque increases and acceptable results were obtained. On the other hand, by using aluminium instead of steel as the material of the shaft, lower critical engine speed is obtained given that the same dimension of the shaft is used. This is due to the fact that aluminium possesses lower modulus of rigidity in comparison to steel.
format	Thesis
author	Mohd Hasnun Ariff, Hassan
author_facet	Mohd Hasnun Ariff, Hassan
author_sort	Mohd Hasnun Ariff, Hassan
title	Design of a dynamometer engine coupling shaft
title_short	Design of a dynamometer engine coupling shaft
title_full	Design of a dynamometer engine coupling shaft
title_fullStr	Design of a dynamometer engine coupling shaft
title_full_unstemmed	Design of a dynamometer engine coupling shaft
title_sort	design of a dynamometer engine coupling shaft
publishDate	2012
url	http://umpir.ump.edu.my/id/eprint/3587/ http://umpir.ump.edu.my/id/eprint/3587/1/MOHD_HASNUN_ARIF_BIN_HASSAN_u.PDF
first_indexed	2023-09-18T21:57:58Z
last_indexed	2023-09-18T21:57:58Z
_version_	1777414206188945408

Design of a dynamometer engine coupling shaft

Similar Items