NON-LINEAR ANALYSIS OF COMPRESSIVELY/THERMALLY STRESSED ELASTIC SHELL STRUCTURES ON THE STEELPAN AND THE UNDERLYING THEORY OF THE TUNING PROCESS
✍ Scribed by A Achong
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 260 KB
- Volume
- 222
- Category
- Article
- ISSN
- 0022-460X
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✦ Synopsis
This paper presents a non-linear analysis of the dome-shaped notes on the steelpan under compressive and thermal stresses. Equations are derived for the static and dynamic response of symmetrically distorted notes. Analytical results are obtained for modal frequencies, non-linear coupling coecients and the buckling parameter. Experimental results demonstrate the vibration characteristics and their dependence on temperature. Experimental results were also obtained for the eects of stress relaxation which follows the shaping and tuning process of these notes by hammer peening. The results of the analysis are applicable to other shell-like structures not necessarily designed for musical purposes.