ACTA AERONAUTICAET ASTRONAUTICA SINICA >
Aerodynamic modeling and flight trajectory simulation of spinning projectile
Received date: 2016-02-26
Revised date: 2016-05-26
Online published: 2016-06-02
A time-domain autoregressive moving average (ARMA) method for aerodynamic modeling is adopted in the spinning projectile six-degree of freedom trajectory simulation. The computational fluid dynamics coupled with rigid body dynamics equations (CFD/RBD) simulation result is regarded as sample, and the unsteady aerodynamic model of the spinning projectile is established successfully. Different forms of the unsteady aerodynamic model combined with RBD equations are discussed considering the influence on the simulation effect. As is shown in the result, appropriate modeling form combined with RBD module can simulate the motion and attitude of the spinning projectile, and the simulation results from the new approach can fit well with CFD/RBD results under different initial conditions. This new simulation approach can be applied to the fast simulation research, which can not only guarantee the precision, but also save much time and computing resources compared with CFD/RBD simulation method.
WANG Gang , XING Yu , ZHU Ya'nan . Aerodynamic modeling and flight trajectory simulation of spinning projectile[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2017 , 38(1) : 120169 -120169 . DOI: 10.7527/S1000-6893.2016.0169
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