Vsevolod I. Smyslov, Artyom V. Bykov, Stanislav I. Sychev

DOI Number: N/A

Conference number: IFASD-2015-172

Features of considered unmanned flight vehicle (UFV), which define the method of research of flutter and stability of “elastic UFV – control system (CS)”, are shown. Main stages of experimental and computational efforts for preventing dangerous auto-oscillations in flight are presented. The usage of digital CS along with high performance actuators makes experimental works more complex and requires a lot of modification of test object to carry out the stand tests. Frequency method of estimating the stability and limited-cycle loop (LCO) amplitude required to obtain in experiment a multitude of measurements of combinations of frequency responses functions (FRF) of separate elements of “elastic UFV–CS” loop. These data for stability evaluation are complemented by computational aerodynamic characteristics. Results of experimental tests are given.

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In Categories: 2. IFASD 2015, Aeroservoelasticity & Active Control
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