City Research Online

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

Su, H. & Banerjee, R. (2018). The modal characteristics of high aspect ratio sailplane wings including the effects of bending and torsional rigidities. Journal of Physics: Conference Series, 1048, article number 012010. doi: 10.1088/1742-6596/1048/1/012010

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 of bending-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.

Publication Type: Article
Subjects: T Technology > TL Motor vehicles. Aeronautics. Astronautics
Departments: School of Science & Technology > Engineering
SWORD Depositor:
[thumbnail of Journal of Physics paper-2018.pdf]
Preview
Text - Published Version
Available under License Creative Commons: Attribution 3.0.

Download (581kB) | Preview

Export

Add to AnyAdd to TwitterAdd to FacebookAdd to LinkedinAdd to PinterestAdd to Email

Downloads

Downloads per month over past year

View more statistics

Actions (login required)

Admin Login Admin Login