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Structural optimization for the avoidance of self-excited vibrations based on analytical models

Spelsberg-Korspeter, G. (2010):
Structural optimization for the avoidance of self-excited vibrations based on analytical models.
In: Journal of Sound and Vibration, 329 (23), Elsevier, [Article]

Item Type: Article
Erschienen: 2010
Creators: Spelsberg-Korspeter, G.
Title: Structural optimization for the avoidance of self-excited vibrations based on analytical models
Language: English
Journal or Publication Title: Journal of Sound and Vibration
Journal volume: 329
Number: 23
Publisher: Elsevier
Divisions: 16 Department of Mechanical Engineering > Dynamics and Vibrations
16 Department of Mechanical Engineering
Date Deposited: 19 Sep 2012 14:16
Official URL: http://dx.doi.org/10.1016/j.jsv.2010.04.004
Identification Number: doi:10.1016/j.jsv.2010.04.004
Alternative Abstract:
Alternative abstract Language
Self-excited vibrations are a severe problem in many technical applications. In many cases they are caused by friction as for example in disk and drum brakes, clutches, saws and paper calenders. The goal to suppress self-excited vibrations can be reached by active and passive techniques, the latter ones being preferable due to the lower costs. Among design engineers it is known that breaking the symmetries of structures is sometimes helpful to avoid self-excited vibrations. This has been verified from an analytical point of view in a recent paper. The goal of the present paper is to use this analytical insight for a systematic structural optimization of rotors in frictional contact. The first system investigated is a simple discrete model of a rotor in frictional contact. As a continuous example a rotating beam in frictional contact is considered and optimized with respect to its bending stiffness. Finally a brake disk is optimized giving some attention to the feasibility of the modifications for the production process.English
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