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A Study on the Ballistic Characteristics of the Two-dimensional Trajectory Correction Projectile

Author: YuTao
Tutor: WangZhongYuan
School: Nanjing University of Technology and Engineering
Course: Weapons systems and the use of engineering
Keywords: Exterior ballistics Correct Aerodynamic layout Flight stability Ballistic characteristics
CLC: TJ012
Type: Master's thesis
Year: 2010
Downloads: 267
Quote: 4
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Abstract


Two - dimensional trajectory correction technology can effectively improve MISSILES hit accuracy , which is currently one of the hot bomb arrows field . In this paper the aerodynamic characteristics involved in the two-dimensional trajectory correction technology , the stability and ballistic characteristics . For two-dimensional trajectory correction projectiles flying characteristics , establish a coordinate system , a detailed analysis of the forces and moments acting on the projectile , Trajectory Correction in the general form of a two-dimensional space is derived by the theorem of momentum and moment of momentum theorem six degrees of freedom equations of motion . According to the aerodynamic characteristics of the two-dimensional trajectory correction projectiles , the proposed calculation method of aerodynamic resistance rings and the damping plate under conditions in different sizes and different installation location , the numerical calculations show that the algorithm has good versatility for the layout of the actual aerodynamic shells the design has certain reference value . To ensure the stability of the flight of the projectile correction premise . External ballistics theory of stability problems in the two-dimensional trajectory correction projectiles flight analysis of the impact of the amendment process, the projectile stability , less spin results show that the greater impact on the stability , and draw a projectile flying the process needed to meet the dynamic stability of the minimum speed curve . Relevant motion parameters under the conditions of different aerodynamic parameters of the simulation , the graph change with the time-of-flight , and summarizes the amendments to the law of the two - dimensional trajectory correction projectiles . Ballistic characteristics under different angle , and reached the minimum horizontal correction angle . Ballistic calculations show that the two-dimensional trajectory correction Landing Error correction effect calculated results have certain reference value .

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CLC: > Industrial Technology > Arms industry > General issues > Theoretical and Experimental > Guns and ballistics
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