25th Congress of International Council of the Aeronautical Sciences, 3 - 8 September 2006, Hamburg, Germany
Paper ICAS2006-3.2S

INVESTIGATION OF ERROR SOURCES ON THE BALANCE AND THE STANDARD DYNAMIC MODEL IN THE WIND TUNNEL

M. R. Hassani Ahangar, M. R. Kangavari, R. Berangi
Iran Univ. of Science and Technology (IUST), Iran

Keywords: Wind Tunnel, Balance, Standard Dynamic Model, Data Acquisition, Signal processing, Filter, FIR

This article describes a dynamic balance and its simulation system and investigates the error sources on them with a standard dynamic model. The practical measurements show significant noise, phase and amplitude variations which indicate side rotations of the model and the instability of the air flow during the test.

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