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Ancient Temple Carts—Modifications for Structure and Steering Read chapter Read first chapter

2015 | OriginalPaper | Chapter

Smart Machines with Flexible Rotors

Authors : Arthur W. Lees, Michael I. Friswell

Published in: Vibration Engineering and Technology of Machinery

Publisher: Springer International Publishing

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Abstract

The concept of smart machinery is of current interest. Several technologies are relevant in this quest including magnetic bearings, shape memory alloys (SMA) and piezoelectric activation. Recently a smart bearing pedestal was proposed based on SMAs and elastomeric O-rings. However, such a device is clearly relevant only for the control of rigid rotors; for flexible rotors there is a need for some modification on the rotor itself. In this paper, equations of motion are developed to describe a rotor with a force generator (for example, a piezoelectric element) mounted on it. It is shown that such a system may be used to compensate for imbalance by inducing a rotor bend. This leads to some questions as to the optimum control strategies, and the paper discusses some of the possibilities.

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previous chapter Theoretical and Experimental Investigation into ‘Efficient Modal Control Strategies’ as Applied on a Plate Structure
next chapter Vibration Localization of Rotationally Periodic Structures
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Metadata
Title
Smart Machines with Flexible Rotors
Authors
Arthur W. Lees
Michael I. Friswell
Copyright Year
2015
Book
Vibration Engineering and Technology of Machinery

Print ISBN: 978-3-319-09917-0

Electronic ISBN: 978-3-319-09918-7

Copyright Year: 2015

DOI
https://doi.org/10.1007/978-3-319-09918-7_76

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