Volume 28 Issue 5
May  2013
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MA Dong-li, YE Chuan. Dynamic derivative analysis for hybrid airship incorporating lift and buoyancy[J]. Journal of Aerospace Power, 2013, 28(5): 1074-1080.
Citation: MA Dong-li, YE Chuan. Dynamic derivative analysis for hybrid airship incorporating lift and buoyancy[J]. Journal of Aerospace Power, 2013, 28(5): 1074-1080.

Dynamic derivative analysis for hybrid airship incorporating lift and buoyancy

  • Received Date: 2012-05-17
  • Publish Date: 2013-05-28
  • Translational and rotational acceleration derivatives of sphere and ellipsoid were calculated,and pitch oscillation of the NACA0015 airfoil was simulated.The applicability of computational fluid dynamics(CFD) method was validated.Forced oscillation of hybrid airship incorporating lift and buoyancy was simulated.The dynamic derivatives of whole airship,wing,hull,horizontal tail and vertical tail were obtained.The results were compared with those of conventional airship.The heave and roll velocity derivatives are much larger than those of conventional airship due to the contribution of wing.The viscous force and the interference of wing on hull and tail are important for the acceleration derivatives in the heave,roll and pitch directions.Consequently,the acceleration derivatives can not be simplified as additional mass coefficients.

     

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