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Vibration and Sound Radiation Analysis of Vehicle Powertrain Systems with Right-Angle Geared Drive.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Vibration and Sound Radiation Analysis of Vehicle Powertrain Systems with Right-Angle Geared Drive./
作者:	Wang, Yawen.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2017,
面頁冊數:	147 p.
附註:	Source: Dissertation Abstracts International, Volume: 78-11(E), Section: B.
Contained By:	Dissertation Abstracts International78-11B(E).
標題:	Mechanical engineering. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10626898
ISBN:	9781369981018

Vibration and Sound Radiation Analysis of Vehicle Powertrain Systems with Right-Angle Geared Drive.
Wang, Yawen.

Vibration and Sound Radiation Analysis of Vehicle Powertrain Systems with Right-Angle Geared Drive. - Ann Arbor : ProQuest Dissertations & Theses, 2017 - 147 p.

Source: Dissertation Abstracts International, Volume: 78-11(E), Section: B.

Thesis (Ph.D.)--University of Cincinnati, 2017.

Hypoid and bevel gears are widely used in the rear axle systems for transmitting torque at right angle. They are often subjected to harmful dynamic responses which cause gear whine noise and structural fatigue problems. In the past, researchers have focused on gear noise reduction through reducing the transmission error, which is considered as the primary excitation of the geared system. Effort on the dynamic modeling of the gear-shaft-bearing-housing system is still limited. Also, the noise generation mechanism through the vibration propagation in the geared system is not quite clear. Therefore, the primary goal of this thesis is to develop a system-level model to evaluate the vibratory and acoustic response of hypoid and bevel geared systems, with an emphasis on the application of practical vehicle powertrain system. The proposed modeling approach can be employed to assist engineers in quiet driveline system design and gear whine troubleshooting.

ISBN: 9781369981018Subjects--Topical Terms:

557493
Mechanical engineering.

Vibration and Sound Radiation Analysis of Vehicle Powertrain Systems with Right-Angle Geared Drive.
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245 1 0 $a Vibration and Sound Radiation Analysis of Vehicle Powertrain Systems with Right-Angle Geared Drive.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2017
300 $a 147 p.
500 $a Source: Dissertation Abstracts International, Volume: 78-11(E), Section: B.
500 $a Adviser: Teik C. Lim.
502 $a Thesis (Ph.D.)--University of Cincinnati, 2017.
520 $a Hypoid and bevel gears are widely used in the rear axle systems for transmitting torque at right angle. They are often subjected to harmful dynamic responses which cause gear whine noise and structural fatigue problems. In the past, researchers have focused on gear noise reduction through reducing the transmission error, which is considered as the primary excitation of the geared system. Effort on the dynamic modeling of the gear-shaft-bearing-housing system is still limited. Also, the noise generation mechanism through the vibration propagation in the geared system is not quite clear. Therefore, the primary goal of this thesis is to develop a system-level model to evaluate the vibratory and acoustic response of hypoid and bevel geared systems, with an emphasis on the application of practical vehicle powertrain system. The proposed modeling approach can be employed to assist engineers in quiet driveline system design and gear whine troubleshooting.
520 $a Firstly, a series of comparative studies on hypoid geared rotor system dynamics applying different mesh formulations are performed. The purpose is to compare various hypoid gear mesh models based on pitch-cone method, unloaded and loaded tooth contact analysis. Consequently, some guidelines are given for choosing the most suitable mesh representation. Secondly, an integrated approach is proposed for the vibro-acoustic analysis of axle systems with right-angle geared drive. The approach consists of tooth contact analysis, lumped parameter gear dynamic model, finite element model and boundary element model. Then, a calculation method for tapered roller bearing stiffness matrix is introduced, which is based on the Finite Element/Contact Mechanics model of axle system with right-angle geared system. The effect of rigid bearing support and flexible bearing support is studied by comparing the flexible axle system model with rigid supported gear pair model. Other important system dynamic factors are also investigated, such as the gear-shaft interaction, rotordynamics effect and housing flexibility. Finally, some conclusions and recommendations for future studies are given.
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