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MATHEMATICAL MODELLING OF A HELICOPTER ROTOR TRACK AND BALANCE: RESULTS

โœ Scribed by R. Ben-Ari; A. Rosen

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
414 KB
Volume
200
Category
Article
ISSN
0022-460X

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โœฆ Synopsis

A mathematical model of a helicopter rotor track and balance is used in order to study optimal balancing and tracking, and their relationship. It is shown that perfect tracking does not necessarily lead to optimal balancing. Furthermore, cases of perfect tracking, may be accompanied by relatively high vibrations. Tracking or balancing at a certain air speed may also be accompanied by relatively large vibrational loads at other air speeds. Thus, it is recommended to perform simultaneous balancing at different air speeds. The present investigation shows how the new model can be used for optimal balancing of helicopter rotors.

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