Van Zyl, Louwrens H2007-08-162007-08-162006-09Van Zyl, L.H. 2006. Holistic approach to flutter clearance using classical methods. 25th International Congress of the Aeronautical Sciences - ICAS 2006, Hamburg, September 2006, pp 14http://hdl.handle.net/10204/1138Flutter clearance is usually regarded as a two step process: flutter analysis (including ground vibration testing, aerodynamic analysis and equation of motion solution), and flutter flight testing. The problem with this approach is that there are often significant discrepancies between the predicted damping and frequency trends and the trends measured during flutter flight testing. The discrepancies, when they become apparent during flight testing, cast doubt on the accuracy and validity of the analysis and hamper processing of the flight test data. By employing relatively simple techniques in combination, the analyst can be much better prepared for the flutter flight tests, enabling him to process the data efficiently despite the usual discrepancies and to better judge whether the discrepancies indicate serious deficiencies in the flutter analysis.enFlutter analysisFlutter flight testState space modelGround vibration testConference PresentationVan Zyl, L. H. (2006). Holistic approach to flutter clearance using classical methods. http://hdl.handle.net/10204/1138Van Zyl, Louwrens H. "Holistic approach to flutter clearance using classical methods." (2006): http://hdl.handle.net/10204/1138Van Zyl LH, Holistic approach to flutter clearance using classical methods; 2006. http://hdl.handle.net/10204/1138 .TY - Conference Presentation AU - Van Zyl, Louwrens H AB - Flutter clearance is usually regarded as a two step process: flutter analysis (including ground vibration testing, aerodynamic analysis and equation of motion solution), and flutter flight testing. The problem with this approach is that there are often significant discrepancies between the predicted damping and frequency trends and the trends measured during flutter flight testing. The discrepancies, when they become apparent during flight testing, cast doubt on the accuracy and validity of the analysis and hamper processing of the flight test data. By employing relatively simple techniques in combination, the analyst can be much better prepared for the flutter flight tests, enabling him to process the data efficiently despite the usual discrepancies and to better judge whether the discrepancies indicate serious deficiencies in the flutter analysis. DA - 2006-09 DB - ResearchSpace DP - CSIR KW - Flutter analysis KW - Flutter flight test KW - State space model KW - Ground vibration test LK - https://researchspace.csir.co.za PY - 2006 T1 - Holistic approach to flutter clearance using classical methods TI - Holistic approach to flutter clearance using classical methods UR - http://hdl.handle.net/10204/1138 ER -