A methodology of identification of the aircraft translational dynamic stability derivatives in water tunnel experiments

• Autorzy: Lichoń D.

Identyfikatory

DOI

10.5604/12314005.1217238

• Języki publikacji: EN

Abstrakty

EN

The aircraft dynamic stability derivatives (DSD) describe the variation of aerodynamics forces and moments with respect to disturbances of kinematic parameters (translational or rotational). The knowledge of DSD is important due to determination of aircraft dynamic stability characteristics. Thus, the identification of DSD is an issue of analytical or numerical analysis and experimental researches. Experimental methods use air or water tunnel tests. The investigated model is submitted to forced oscillations with relatively low amplitude, which simulates the disturbances around steady state flight parameters. The variation of forces and moments are measured by strain balance system, which allows identifying DSD. This work is focused on development the methodology of experimental identification the aircraft translational DSD in water tunnel tests. Study of available publications shows that model manipulator system usually provides rotational movements around three axes. Therefore, the measurements can be performed with respect to rotational velocity disturbances. However, by addition the translational manipulator with one degree of freedom the measurements can be expanded into translational velocity disturbances (normal and sideslip). It is necessary to point that axial velocity disturbance is omitted due to lack of axial force component in strain balance construction. The proposed modification does not affect the construction of rotational manipulator or balance. The article contains translational manipulator scheme, modification of data acquisition system and mathematical process of identification the aircraft translational dynamic stability derivatives.

Słowa kluczowe

EN

aircraft dynamic stability; dynamic stability derivatives; water tunnel

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2016
• Tom: Vol. 23, No. 4
• Strony: 291--296
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Lichoń D.

• Rzeszow University of Technology Department of Aircraft and Aircraft Engines Powstańców Warszawy Avenue 8, 35-959 Rzeszow, Poland tel.: [phone]

Bibliografia

• [1] Altun, M., Iyigun, I., Dynamic stability derivatives of a manoeuvring combat aircraft model, Journal of Aeronautics and Space Technologies, Vol. 1, No. 3, pp. 19-27, 2004.
• [2] Cook, M.V., Flight Dynamics Principles, Elsevier Aerospace Engineering Series, 2007.
• [3] Erm, L. P., An experimental investigation into the feasibility of measuring static and dynamic aerodynamic derivatives in the DSTO water tunnel, Defence Science and Technology Organisation, Technical Report No. DSTO-TR-2600, Australia 2013.
• [4] Erm, L. P., Development of a two-component strain-gauge-balance load-measurement system for the DSTO water tunnel, Defence Science and Technology Organisation, Technical Report No. DSTO-TR-1835, Australia 2006.
• [5] Erm, L. P., Ferrarotto, P., Development of a five-component strain-gauge-balance for the DSTO water tunnel, Defence Science and Technology Organisation, Technical Report No. DSTO-GD-0597, Australia 2009.
• [6] Erm, L. P., OL, M. V., An assessment of the usefulness of water tunnels for aerodynamic investigations, Defence Science and Technology Organisation, Technical Report No. DSTO- -TR-2803, Australia 2013.
• [7] Ghoreyshi, M., Jirasek, A., Cummings, R. M., CFD Modeling for Trajectory Predictions of a Generic Fighter Configuration, American Institute of Aeronautics and Astronautics, AIAA 2011-6523, Portland 2011.
• [8] Newman, D.M., A technique for measurement of static and dynamic longitudinal aerodynamic derivatives using the DSTO water tunnel, Defence Science and Technology Organisation, Technical Report No. DSTO-TR-2599, Australia 2011.
• [9] Smith, B.C., Malcolm G.N., Determination of non-linear dynamic aerodynamic coefficients for aircraft, Eidetics Corporation, Technical Report no. TR97-001, Torrance 1997.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.