CAJ | 학술논문

为发展具有精确打击能力的有控旋转稳定弹，研究了一类采用双旋结构的鸭式布局旋转稳定弹。分析了该类有控弹的飞行原理，补充了其飞行动力学建模所需的坐标系；根据牛顿第二定律和动量矩定理，建立了七自由度刚体质心运动方程和绕质心运动方程；讨论了作用在弹体上的诸力和力矩。编制计算程序对鸭式布局双旋弹的弹道特性进行了仿真分析，揭示了无控条件下双旋弹前、后体的转速和全弹攻角、偏流的变化规律，得到了控制力和控制力矩作用下双旋弹体的攻角响应。仿真结果与其飞行原理吻合，符合外弹道规律，验证了所建模型的合理性，为后续研究该类有控旋转弹提供了理论基础。
위발전구유정학타격능력적유공선전은정탄，연구료일류채용쌍선결구적압식포국선전은정탄。분석료해류유공탄적비행원리，보충료기비행동역학건모소수적좌표계；근거우돈제이정률화동량구정리，건립료칠자유도강체질심운동방정화요질심운동방정；토론료작용재탄체상적제력화력구。편제계산정서대압식포국쌍선탄적탄도특성진행료방진분석，게시료무공조건하쌍선탄전、후체적전속화전탄공각、편류적변화규률，득도료공제력화공제력구작용하쌍선탄체적공각향응。방진결과여기비행원리문합，부합외탄도규률，험증료소건모형적합이성，위후속연구해류유공선전탄제공료이론기출。
To develop the guided spin-stabilized proj ectiles with high hit-precision,a class of dual-spin stabilized proj ectiles equipped with canards was studied.The flight principle of canard-control dual-spin proj ectile was briefly analyzed.The reference frames for flight dynamics modeling were complemented.According to Newton’s second law and the moment of momentum theorem,the seven-degree-of-freedom rigid-body flight-dynamic-model was established as well as the forces and moments acting on the proj ectile.The flight properties of dual-spin proj ectiles equipped with canards was analyzed and simulated through computer programming.The variation law of spin rates for two bodies,attack angle,and ballistic drift without action of control was revealed.The response of attack angle with the action of canard force and moment was also obtained.The simulation results are in accordance with the flight principle and exterior ballistic theory,which verifies the reasonableness of the established flight-dynamic-model.The results provide theoretical basis for further research on this type of guided proj ectiles.