Study On The Motion Characteristics Of The Parachute Sensor-fuzed Submunition

The paper analyses and studies the scanning movement of the rotating parachute sensor-fuzed submunition and the relative processes. Through studying the rotating mechanism of the rotating parachute, we put forward the technical access to augmenting the rotative moment and increasing ratio of rotating speed to falling velocity. We study the scanning angle with emphasis on the scanning movement of the rotating parachute sensor-fuzed submunition. Simplified appropriately, we build the dynamics models of figuring out the scanning angle. According to the built models, the theoretical calculation shous that the calculating value of the dynamic equilibrium scanning angle is almost equal to the test value. Also, the scanning angle oscillating from calculating accords nearly with that from testing. And the calculating value of the scanning angle oscillation amplitude is near the test value. We come at a law that shows the affects of the submunition body's moment of inertia and the scanning rotating speed on scanning angle. Furthermore, we analyse and study the problem that the dynamic equilibrium scanning angle of the rotating parachute sensor-fuzed submunition is conflicting when it rotates at a high speed. You refer to this when you study the target-sensitivity projectile with parachute.