Determination Of Frequency Dependent Global Dynamic Properties Of Engine Mount

The dynamic properties of engine mount influence the performance of the engine mounting system. The frequency-dependent properties represented the more accurate properties of the engine mount as opposed to the frequency-independent properties model. Impact technique in the past has been used to meas...

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Main Author:	OOI , LU EAN
Format:	Thesis
Language:	English
Published:	2004
Subjects:	TJ1-1570 Mechanical engineering and machinery
Online Access:	http://eprints.usm.my/37248/1/OOI_LU_EAN_24_Pages.pdf
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id	my-usm-ep.37248
record_format	uketd_dc
spelling	my-usm-ep.372482017-11-20T06:11:49Z Determination Of Frequency Dependent Global Dynamic Properties Of Engine Mount 2004 OOI , LU EAN TJ1-1570 Mechanical engineering and machinery The dynamic properties of engine mount influence the performance of the engine mounting system. The frequency-dependent properties represented the more accurate properties of the engine mount as opposed to the frequency-independent properties model. Impact technique in the past has been used to measure the dynamic driving point stiffness in the axial position which omitted the shear properties. In this research, the impact technique is extended to measure the global dynamic properties including the dynamic shear stiffness of the engine mount.. When the engine mount is oriented in certain angles, the combination effect of dynamic compression stiffness and dynamic shear stiffness altered the global dynamic properties of the engine mount. A transformation technique is developed to include both of the dynamic stiffnesses and used them to determine the global dynamic properties of engine mount. Three different types of engine mounts are used to validate the application of the developed technique. Finally, optimization was carried out to demonstrate the effect of the global dynamic properties based on the frequency-dependent properties of engine mount. The optimum locations and orientation angles of each individual mount are identified to minimize the mean force transmissibility of the engine mounting system. The reduction of the force transmissibility showed that optimization based on the frequency-independent properties underestimated the peak transmissibility. 2004 Thesis http://eprints.usm.my/37248/ http://eprints.usm.my/37248/1/OOI_LU_EAN_24_Pages.pdf application/pdf en public phd doctoral Universiti Sains Malaysia Pusat Pengajian Kejuruteraan Mekanik
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	TJ1-1570 Mechanical engineering and machinery
spellingShingle	TJ1-1570 Mechanical engineering and machinery OOI , LU EAN Determination Of Frequency Dependent Global Dynamic Properties Of Engine Mount
description	The dynamic properties of engine mount influence the performance of the engine mounting system. The frequency-dependent properties represented the more accurate properties of the engine mount as opposed to the frequency-independent properties model. Impact technique in the past has been used to measure the dynamic driving point stiffness in the axial position which omitted the shear properties. In this research, the impact technique is extended to measure the global dynamic properties including the dynamic shear stiffness of the engine mount.. When the engine mount is oriented in certain angles, the combination effect of dynamic compression stiffness and dynamic shear stiffness altered the global dynamic properties of the engine mount. A transformation technique is developed to include both of the dynamic stiffnesses and used them to determine the global dynamic properties of engine mount. Three different types of engine mounts are used to validate the application of the developed technique. Finally, optimization was carried out to demonstrate the effect of the global dynamic properties based on the frequency-dependent properties of engine mount. The optimum locations and orientation angles of each individual mount are identified to minimize the mean force transmissibility of the engine mounting system. The reduction of the force transmissibility showed that optimization based on the frequency-independent properties underestimated the peak transmissibility.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	OOI , LU EAN
author_facet	OOI , LU EAN
author_sort	OOI , LU EAN
title	Determination Of Frequency Dependent Global Dynamic Properties Of Engine Mount
title_short	Determination Of Frequency Dependent Global Dynamic Properties Of Engine Mount
title_full	Determination Of Frequency Dependent Global Dynamic Properties Of Engine Mount
title_fullStr	Determination Of Frequency Dependent Global Dynamic Properties Of Engine Mount
title_full_unstemmed	Determination Of Frequency Dependent Global Dynamic Properties Of Engine Mount
title_sort	determination of frequency dependent global dynamic properties of engine mount
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Kejuruteraan Mekanik
publishDate	2004
url	http://eprints.usm.my/37248/1/OOI_LU_EAN_24_Pages.pdf
_version_	1747820656080191488

Determination Of Frequency Dependent Global Dynamic Properties Of Engine Mount

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