CAJ | 학술논문

针对航空炸弹的标准弹道系数表，研究了航空炸弹的弹道反设计算法。即已知某型号航空炸弹的标准弹道系数表，采用改进遗传算法（Improved Genetic Algorithm）与炸弹的7-D运动微分方程，以一个类似的航空炸弹模型数据库（气动力与力矩系数、质量特性、几何参数等）为初始值修正航空炸弹各子系统模型，使得修正后的航空炸弹模型计算出的落点参数与标准弹道系数表中的落点参数高精度吻合。算例结果表明，该弹道反设计的算法与软件是准确可靠的。
침대항공작탄적표준탄도계수표，연구료항공작탄적탄도반설계산법。즉이지모형호항공작탄적표준탄도계수표，채용개진유전산법（Improved Genetic Algorithm）여작탄적7-D운동미분방정，이일개유사적항공작탄모형수거고（기동력여력구계수、질량특성、궤하삼수등）위초시치수정항공작탄각자계통모형，사득수정후적항공작탄모형계산출적낙점삼수여표준탄도계수표중적낙점삼수고정도문합。산례결과표명，해탄도반설계적산법여연건시준학가고적。
The reverse design of flight trajectory for aeronautic uncontrolled bomb is researched according to its standard ballistic coefficient database. Firstly the initial model values of uncontrolled bomb are set as a similar bomb model(including the database of aerodynamic and moment coefficients, mass properties,geometric parameter and so on),then this initial model values are optimally modified by improved Elitist Preserved Genetic Algorithm based on the 7-D motion differential equations of an aeronautic uncontrolled bomb. The optimization calculations globally minimizes the bomb falling position errors,which compares with the falling positions in the standard ballistic coefficient database. The numerical simulation results of 7-D flight trajectories are showing that the average error of bomb falling position is 6.53 meters and the maximum error is 11.25 meters,which verified that the algorithm of ballistic reverse design and the software are high accuracy and reliable.