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Interpolation of Mode Shapes: A Matrix Scheme Using Two-Way Spline Curves

Published online by Cambridge University Press:  07 June 2016

G. T. S. Done
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Summary

A method of interpolating low aspect ratio lifting surface mode deflections for use in aeroelastic calculations is described. It is based on the spline curve, the numerical analogue of the draughtsman’s spline which is a thin flexible beam used for drawing a smooth curve through a set of given coordinate points. The present problem is one of surface fitting and a matrix scheme using two-way spline curves is adopted. The method of treating the case in which the data points are randomly placed, whilst retaining an exact fit at the points, is discussed, as are the results of a practical example.

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Type
Research Article
Information
Aeronautical Quarterly , Volume 16 , Issue 4 , November 1965, pp. 333 - 349
Copyright
Copyright © Royal Aeronautical Society. 1965

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