地面颤振模拟试验技术研究进展

doi:10.7527/S1000-6893.2024.29229

Abstract

Abstract:

Flutter is a kind of aeroelastic dynamic stability problem that should be avoided during flight and may lead to disastrous consequences. Ground Flutter Simulation Test （GFST） is an emerging method for flutter testing， which directly uses the prototype structure or model structure of the aircraft as the test object and is a semi-physical simulation test technique. Aerodynamic simulation loading devices， such as shakers， are used to simulate the distributed aerodynamic loads on the structure， so that the aeroelastic stability characteristics of the real structure can be obtained on the ground （outside the wind tunnel）. In this paper， the research status of GFST technology is analyzed from three aspects： reduced-order real-time reconstruction of the unsteady aerodynamic， unsteady aerodynamic simulation loading， and implementation of GFST. Future development directions of the GFST technology are also discussed.

Key words: ground flutter simulation test, reduced-order real-time reconstruction of unsteady aerodynamic force, aerodynamic equivalence theory, loading system modeling, excitation force control

CLC Number:

V211.47

Guiwei ZHANG, Zhaoqing LIU, Lei ZHU, Heng ZHANG, Wei TIAN, Weiguang LI, Zhichun YANG. Research progress of ground flutter simulation test technology[J]. Acta Aeronautica et Astronautica Sinica, 2024, 45(10): 29229-029229.

Figures/Tables 12

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Research progress of ground flutter simulation test technology

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