The natural frequencies and the corresponding mode shapes of a uniform rectangular plate carrying any number of rigidly attached (or elastically mounted) point masses and translational springs with various magnitudes and arbitrary locations are determined by using the modified Analytical and Numeric
VIBRATION ISOLATION IN A THIN RECTANGULAR PLATE USING A LARGE NUMBER OF OPTIMALLY POSITIONED POINT MASSES
β Scribed by A.J. McMillan; A.J. Keane
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 415 KB
- Volume
- 202
- Category
- Article
- ISSN
- 0022-460X
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β¦ Synopsis
A new approach is presented for dealing with the problem of vibration control in a plate over a moderately wide frequency band. The band of interest does not contain the first few eigenvalues, nor is it restricted to very high frequencies, but typically contains five or six eigenfrequencies in the 10's of eigennumber. The idea is to make minor modifications to the structure which are sufficient to change its frequency response so that the transmission of vibrations in a given frequency band is suppressed. This work is illustrated by application to a rectangular plate which carries 50 identical point masses in variable positions. A novel method for selecting optimal mass position is demonstrated and compared with the results for mass positions determined by a Genetic Algorithm (G.A.).
π SIMILAR VOLUMES
By means of the analytical-and-numerical-combined method (ANCM), the natural frequencies and the corresponding mode shapes of a uniform rectangular flat plate carrying any number of point masses and translational springs are determined. The boundary (supported) conditions of the plate and the magnit
We find the title paper both useful and very interesting and we would like to congratulate the authors to their work [1]. On the other hand it is also the purpose of this letter to add some pertinent references which have been inadvertently omitted by the authors. Reference [2] deals with elastical