Research on Aerodynamic Characteristics of Terminal Sensitive Projectile with S-S-shaped Flexible Wings

doi:10.3969/j.issn.1000-1093.2017.01.007

Abstract

Abstract: The stabilizing wings are wrapped on the outer wall of terminal sensitive projectile (TSP). The diameter of TSP is generally large to meet the demand of power, which restricts wing thickness. The falling speed of TSP is so quick that the wings deform under the action of aerodynamic force. The effect of the structure parameters of wings on the aerodynamic characteristics of TSP is studied using fluid-structure interaction (FSI) method. The results show that the drag coefficient (C_d) increases with α₂₁ and decreases with other bending angles. The moment coefficient (C_m) increases with bending angles and bending ratios, C_m decreases with length-width ratio of wing. The free flight test results show that C_d and C_m are in agreement the simulated results well. Key

Key words: ordnancescienceandtechnology, terminalsensitiveprojectile, aeroelasticity, aerodynamiccharacteristic, fluid-structureinteraction, freeflighttest

CLC Number:

TJ414⁺.5

LYU Sheng-tao, JI Dan-dan, LIU Rong-zhong, GUO Rui, MA Xiao-dong. Research on Aerodynamic Characteristics of Terminal Sensitive Projectile with S-S-shaped Flexible Wings[J]. Acta Armamentarii, 2017, 38(1): 50-58.

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第38卷
第1期2017 年1月兵工学报ACTA
ARMAMENTARIIVol.38No.1Jan.2017

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