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YANG Lei, YE Zheng-yin, WU Jie. Influence of Elastic Carrier to Dynamic Responses of Store[J]. PHYSICS OF GASES, 2016, 1(4): 1-11.
Citation: YANG Lei, YE Zheng-yin, WU Jie. Influence of Elastic Carrier to Dynamic Responses of Store[J]. PHYSICS OF GASES, 2016, 1(4): 1-11.
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Influence of Elastic Carrier to Dynamic Responses of Store

  • National Key Laboratory on Aerodynamic Design and Research, School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China

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  • Received Date: May 19, 2016
  • Revised Date: June 04, 2016
  • Published Date: July 19, 2016
    Graphical Abstract
    • Abstract
  • The separation between the aircraft and store is one of the most important and difficult phases in air-launch-to-orbit technology. There exists strong aerodynamic interference between the aircraft and the store in store separation. When the aspect ratio of the aircraft is large, the elastic deformations of the wing must be considered. The main purpose of this article is to study the influence of the interference aerodynamics caused by the elastic deformations of the wing to the unsteady aerodynamics of the store. By solving the coupled functions of unsteady Navier-Stokes equations, six degrees of freedom dynamic equations and structural dynamic equations simultaneously, the store separation with the elastic deformation of the aircraft considered was simulated numerically. The interactive aerodynamic forces were analyzed. The study shows that the interference aerodynamics is obvious at earlier time during the separation, and the dominant frequency of the elastic wing determines the aerodynamic forces frequencies of the store. Besides, when the relative distance between the carrier and store is small, the interference aerodynamic forces caused by the elastic vibration of the carrier is about half of the total aerodynamic forces of the store.
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    • References (21)
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