NOSE SHAPE EFFECT ON FLIGHT DYNAMICS OF SUPERSONIC GUIDED MISSILE WITH CONTINUOUS DEFLECTABLE NOSE

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KHALGHANI ABBAS; DJAVARESHKIAN MOHAMMAD HASSAN; PASANDIDEHFARD MAHMOUD

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Paper Information

Journal: Modares Mechanical Engineering Year:2016 | Volume:16 | Issue:1 Page(s): 151-162

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Title

NOSE SHAPE EFFECT ON FLIGHT DYNAMICS OF SUPERSONIC GUIDED MISSILE WITH CONTINUOUS DEFLECTABLE NOSE

Author(s)

KHALGHANI ABBAS | DJAVARESHKIAN MOHAMMAD HASSAN | PASANDIDEHFARD MAHMOUD | Issue Writer Certificate

Keywords

DEFLECTABLE NOSEQ2

BODY FLEXUREQ2

MANEUVERABILITYQ2

AERODYNAMICSQ2

FLIGHT DYNAMICSQ1

Abstract

The FLIGHT DYNAMICS of nine configurations of supersonic continuous DEFLECTABLE NOSE guided missiles have been investigated. The studied configurations consist of a spherical nose tip, a tangent ogive, a set of stabilizing tail fins and a cylindrical body having mid-section flexible enough to form an arc of circle. So the cylindrical body consists of a fixed part in the vicinity of nose, middle flexible part and main body with stabilizers. The effects of fixed length and flexible length parameters on the FLIGHT DYNAMICS of surface to surface, anti-aircraft and antimissile missiles have been studied. A code has been developed to solve full Navier-Stokes equations using finite volume and modified Baldwin-Lomax turbulence model. Further, a 3 degree of freedom code has been developed to compare planar FLIGHT DYNAMICS of missiles. This code consists of a guidance subroutine based on pure pursuit law. The results show that even increase of fixed and flexible lengths enhance the MANEUVERABILITY of the missile, but in some scenarios this can lead to increased flight time and more errors in the target engagement. Deflected nose relocates mass center away from the axis and a thrust vector torque is created. Study of surface to surface scenario shows that this torque improves accuracy of targeting and the ability of target dislocation. In air defense missiles, increase of Fix and Flex variables will extend the limits of allowable firing angle. However, a heavy nose increases the role of thrust torque and subsequently decreases the role of nose geometry.

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APA: Copy

KHALGHANI, ABBAS, DJAVARESHKIAN, MOHAMMAD HASSAN, & PASANDIDEHFARD, MAHMOUD. (2016). NOSE SHAPE EFFECT ON FLIGHT DYNAMICS OF SUPERSONIC GUIDED MISSILE WITH CONTINUOUS DEFLECTABLE NOSE. MODARES MECHANICAL ENGINEERING, 16(1), 151-162. SID. https://sid.ir/paper/178425/en

Vancouver: Copy

KHALGHANI ABBAS, DJAVARESHKIAN MOHAMMAD HASSAN, PASANDIDEHFARD MAHMOUD. NOSE SHAPE EFFECT ON FLIGHT DYNAMICS OF SUPERSONIC GUIDED MISSILE WITH CONTINUOUS DEFLECTABLE NOSE. MODARES MECHANICAL ENGINEERING[Internet]. 2016;16(1):151-162. Available from: https://sid.ir/paper/178425/en

IEEE: Copy

ABBAS KHALGHANI, MOHAMMAD HASSAN DJAVARESHKIAN, and MAHMOUD PASANDIDEHFARD, “NOSE SHAPE EFFECT ON FLIGHT DYNAMICS OF SUPERSONIC GUIDED MISSILE WITH CONTINUOUS DEFLECTABLE NOSE,” MODARES MECHANICAL ENGINEERING, vol. 16, no. 1, pp. 151–162, 2016, [Online]. Available: https://sid.ir/paper/178425/en

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