Effect of Some Disturbance Factors on the Motion Stability of Unguided Rocket
DOI:
https://doi.org/10.3849/aimt.01379Abstract
A mathematical model for unguided-rockets' motion in the air taking into account the deflection of the thrust vector and the position deviation of the center of gravity is established. The mathematical model is solved for specific rocket slow spin. Some calculated results then were compared with standard values given by its supplier. The effect of the disturbance factors on the motion stability is shown through the deviation of the graph of the angle of attack and the trajectory dropping points compared to the corresponding values of the standard trajectory, which does not contain deviations.
References
LE, A.D., NGUYEN, H.D. and TRAN, L.N. Flight Theory and Air Defense Missile Control System (in Vietnamese). Hanoi: Military Technical Academy, 1998. 166 p.
NGUYEN, V.T. and NGUYEN, D.S. External Ballistic Textbook (in Vietnamese). Hanoi: Military Technical Academy, 2003. 379 p.
KONEČNÝ, P. Exterior Ballistics of Rockets. Brno: University of Defence in Brno, 2006. 128 p. ISBN 978-80-7231-200-9.
MORARU, F. and SAFTA, D. Mathematical Model for the Rocket General Motion Simulation in Presence of Various Perturbations. In Proceedings of the 5th Conference on Weapon Systems. Brno: Military Academy, 2001, p. 66-81.
KHALIL, M., ABDALLA, H. and KAMAL, O. Trajectory Prediction for a Typical Fin Stabilized Artillery Rocket. In Proceedings of the 13th International Conference on Aerospace Sciences & Aviation Technology. Cairo: Military Technical College, 2009, p. 1-14. https://doi.org/10.21608/asat.2009.23742.
CAUGHEY, D. Introduction to Aircraft Stability and Control [online]. New York: Sibley School of Mechanical & Aerospace Engineering, 2011. 153 p. [viewed 2019-11-20]. Available from: https://courses.cit.cornell.edu/mae5070/Caughey_2011_04.pdf
GRAUER, J., MORELLIY, E. and MURRIZ, D. Flight Test Techniques for Quantifying Pitch Rate and Angle of Attack Rate Dependencies. Journal of Aircraft, 2017, vol. 54, no. 6, p. 2367-2377. https://doi.org/10.2514/1.C034407.
CHARUBHUN, W., CHUSILP, P. and NUTKUMHANG, N. Effects of Aerodynamic Coefficient Uncertainties on Trajectory Simulation of a Short-range Solid Propellant Free Rocket [online]. In Proceedings of the 26th International Symposium on Ballistics. Miami, 2011. [viewed 2019-11-12]. Available from: https://www.academia.edu/7623368/EFFECTS_OF_AERODYNAMIC_COEFFICIENT _UNCERTAINTIES_ON_TRAJECTORY_SIMULATION_OF_A_SHORT-RANGE_SOLID_PROPELLANT_FREE_ROCKET
NGUYEN, D.P. Researching the Effects of Some Initial Disturbance Factors on Firing Accuracy (in Vietnamese) [PhD Thesis]. Hanoi: Military Technical Academy, 2016. 134 p.
Jet Bullets M21-ΟΦ-VN. Industry standards 06TCN743 (in Vietnamese). Vietnam, 1999.
Fighting Vehicle BM – 21 (in Russian) [Technical Specifications]. Moscow: Military Publishing House, 1980. 99 p.
Downloads
Published
License
Copyright (c) 2020 Advances in Military Technology
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Authors who publish with this journal agree to the following terms:
1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.
Users can use, reuse and build upon the material published in the journal for any purpose, even commercially.