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Titlebook: Dynamics of Rotors and Foundations; Erwin Krämer Book 1993 Springer-Verlag Berlin Heidelberg 1993 Foundations.Rotordynamik.Rotors.assembly

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发表于 2025-3-21 16:11:02 | 显示全部楼层 |阅读模式
书目名称Dynamics of Rotors and Foundations
编辑Erwin Krämer
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图书封面Titlebook: Dynamics of Rotors and Foundations;  Erwin Krämer Book 1993 Springer-Verlag Berlin Heidelberg 1993 Foundations.Rotordynamik.Rotors.assembly
描述Rotordynamics are of great importance in the design,manufacture andassembly of turbomachines as well as inensuring their safe operation. Also important are thedynamics of the foundation and its interaction with thedynamics of the rotor.This book is divided into four parts.Following apresentation of the basic theory the dynamics ofrotorssupported on several bearings. The third part describesthedynamics of foundations of turbine line-outs and thecalculations for a turbomachine coupled with its foundation.The last part includes asection on estimation procedures, acomprehensive presentation of the theoryand practice ofrotors having a transverse crack, a section onthemathematical fundamentals and a description of the computerprogram used for the examples in the book.The book addresses both the practicalengineer and thetheoretician and should provide manufacturers, operators,university and polytechnic lecturers and students with anunderstanding of the vibrations of turbomachines. Theresults aredescribed in such a way that they can be easilyunderstood and applied.
出版日期Book 1993
关键词Foundations; Rotordynamik; Rotors; assembly; computer; design; dynamics; engine; foundation; machine; machines
版次1
doihttps://doi.org/10.1007/978-3-662-02798-1
isbn_softcover978-3-662-02800-1
isbn_ebook978-3-662-02798-1
copyrightSpringer-Verlag Berlin Heidelberg 1993
The information of publication is updating

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发表于 2025-3-21 22:39:20 | 显示全部楼层
Shaft with Non Central Discation could be confined to plane motion of the disc. Now consider the three models shown in Fig. 4.1, with either a noncentral or an outboard disc. Besides the displacement of the disc, its rotation around a radial axis must also be considered. As a result its moment of inertia and gyroscopic effect
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The Short and the Long Rotorf motion quoted in Chap. 4, equations (4.8) and (4.47) are valid, however, for arbitrary values of .. and .. that is for shafts having a thick disc or a long stiff rotor body, as shown for example in Fig. 5.1. The vibrational behaviour of such a model will be investigated in the present chapter.
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Oil-Film Bearingsc bearings are also increasingly being used. The bearings influence the rotor vibrations to a greater or less degree by their dynamic properties in comparison to those of the rotor and the remaining components of the assembly. This influence originates essentially from the ratio of the rotor stiffne
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Rotors with Oil-film Bearingsly, an oil-film bearing can broadly be described as a spring-damper element, with the special property that the displacement and the force in general do not occur in the same direction. In comparison with rotors with rigid bearings, a rotor on oil-film bearings thus has different natural frequencies
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