A COMPARISON OF RESPONSE PREDICTIONS FOR A ROUGH CONE FROM PRESSURE AND BALANCE MEASUREMENTS

The results described in this paper are part of a very complete progra mme of measurements aimed at understanding the nature and magnitude of the mean and dynamic loads on a 1 : 500 scale model of a proposed tow er/building of conical form. Electronically scanned pressure sensors w ere used to get surface pressure information. Force measurements were made in separate tests using two balances. A stiff high-frequency bala nce was used to measure spectra of base shears and moments, and a low- frequency aeroelastic balance was used to measure the model response. This paper describes how pressure information was used to determine th e base shears and moments in the lift and drag directions, and compare s the results with those from the base balance. Good agreement is foun d. The response of the model is also determined from appropriate integ rations of the pressure measurements. The standard deviations of the d ynamic response for both the lift and drag moment responses calculated from the pressure measurements, and from the aeroelastic model tests show good agreement.