Trajectory and Dynamic Simulations of Two-dimensional Trajectory Correction Projectile with Fixed Canards

doi:10.3969/j.issn.1000-1093.2018.04.008

Abstract

Abstract: To investigate the correction ability of two-dimensional trajectory correction projectile with fixed canards，a dynamics simulation model of two-dimensional trajectory correction projectile is established by using joint simulation of Fluent and Adams. The simulation methods for despinning and attitude determination of canards in the simulation environment are presented based on the correction principle of canards. In the environment of Adams, the direct monitoring of real-time roll angles of canards is achieved by establishing Marker monitoring points on the canard model. The crosswind forces increasing from 1 N to 10 N are simulated，the horizontal deviation is increased by 36.5% to 298.0% relative to no cross wind，and the trajectory correction is simulated under the interference of 10 N crosswind force，0.5° lateral angle of jump and 0.5° angle of jump. The results show that the correction of lateral deflection under the condition of 10 N crosswind force is up to 90% relative to the uncorrected lateral deflection，and the impact lateral and longitudinal deviations under the interference of jump angle can be greatly reduced. The comparison of semi-physical simulation experiment and live firing test shows that the simulation method has some rationality，and can be used in studying and testing the two-dimensional trajectory correction projectile. Key

Key words: trajectorycorrectionprojectile, trajectorycorrection, fixedcanard, despinning, attitudedetermination

CLC Number:

TJ012.3⁺4

HAO Yong-ping，CHEN Chuang，ZHANG Jia-yi，PAN Lei. Trajectory and Dynamic Simulations of Two-dimensional Trajectory Correction Projectile with Fixed Canards[J]. Acta Armamentarii, 2018, 39(4): 688-697.

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第39卷
第4期2018 年4月兵工学报ACTA
ARMAMENTARIIVol.39No.4Apr.2018

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