Northampton Electronic Collection of Theses and Research

The modal characteristics of high aspect ratio sailplane wings including the effects of bending and torsional rigidities

Su, H. and Banerjee, R. (2018) The modal characteristics of high aspect ratio sailplane wings including the effects of bending and torsional rigidities. Journal of Radiological Protection. , p. 1. 0952-4746.

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JPCS-2018-HSuJRB
JPCS_2018_HSuJRB.pdf - Accepted Version
Information
Abstract:
The modal behaviour of two high aspect ratio sailplane wings with cantilever boundary conditions is investigated by applying the dynamic stiffness method and using the Wittrick-Williams algorithm as solution technique. The wing is idealised as an assembly ofbending-torsional coupled beams for which the frequency dependent dynamic stiffness matrix is established. A Fortran computer program is developed to obtain the natural frequencies and mode shapes of the wings. The bending and torsional rigidities of each wing are varied and their subsequent effects on the natural frequencies and mode shapes are examined. A detailed parametric study with the variations of bending and torsional rigidities shows some interesting results which can be of practical help to the industry when designing such wings. The illustrative examples chosen for the baseline wings prior to changing their rigidities are representative of existing sailplanes. The results are presented and discussed and the paper concludes with some remarks.
Creators:
Su, H. and Banerjee, R.
Faculties, Divisions and Institutes:
Faculties > Faculty of Arts, Science & Technology > Engineering
Date:
20 May 2018
Date Type:
Publication
Page Range:
p. 1
Journal or Publication Title:
Journal of Radiological Protection
Number of Pages:
10
Language:
English
DOI:
10.1088/1742-6596/1048/1/012010
ISSN:
0952-4746
Status:
Published / Disseminated
Refereed:
Yes
Related URLs:
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