Dimitrios N. Gkritzapis and Elias E. Panagiotopoulos and Dionissios P. Margaris and Dimitrios G. Papanikas
Computational Prediction of Complicated Atmospheric Motion for Spinning or non Spinning Projectiles
366 - 370
2007
1
7
International Journal of Aerospace and Mechanical Engineering
https://publications.waset.org/pdf/2875
https://publications.waset.org/vol/7
World Academy of Science, Engineering and Technology
A full six degrees of freedom (6DOF) flight dynamics
model is proposed for the accurate prediction of short and longrange
trajectories of high spin and finstabilized projectiles via atmospheric
flight to final impact point. The projectiles is assumed to be both rigid
(nonflexible), and rotationally symmetric about its spin axis launched
at low and high pitch angles. The mathematical model is based on the
full equations of motion set up in the noroll body reference frame and
is integrated numerically from given initial conditions at the firing
site. The projectiles maneuvering motion depends on the most
significant force and moment variations, in addition to wind and
gravity. The computational flight analysis takes into consideration the
Mach number and total angle of attack effects by means of the
variable aerodynamic coefficients. For the purposes of the present
work, linear interpolation has been applied from the tabulated database
of McCoys book. The developed computational method gives
satisfactory agreement with published data of verified experiments and
computational codes on atmospheric projectile trajectory analysis for
various initial firing flight conditions.
Open Science Index 7, 2007