کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
759451 896478 2016 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of yawing force frequency on angular motion and ballistic characteristics of a dual-spin projectile
ترجمه فارسی عنوان
تأثیر فرکانس نیروی جاذب در حرکت زاویه ای و ویژگی های بالستیک یک پرتابه دوتایی اسپین
کلمات کلیدی
اصلاح دوره فویز؛ پرتابه دو چرخش؛ چرخش سرعت
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی کنترل و سیستم های مهندسی
چکیده انگلیسی

A roll-decoupled course correction fuze with canards can improve the hit accuracy of conventional unguided ammunitions. The fuze increases accuracy by reducing the effect of angular and translational motion produced by the cyclical yawing forces applied on the projectile. In order to investigate the influence of yawing forces on angular motion, a theoretical solution of the total yaw angle function with the cyclical yawing forces is deduced utilizing the 7 degrees of freedom (7-DOF) model designed for this calculation. Furthermore, a detailed simulation is carried out to determine the influence rules of yawing force on angular motion. The calculated results illustrate that, when the rotational speed of the forward part is close to the initial turning rate, the total yaw angle increases and the flight range decreases sharply. Moreover, a yawing force at an appropriate frequency is able to correct the gun azimuth and elevation perturbation to some extent.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Defence Technology - Volume 12, Issue 2, April 2016, Pages 124–128
نویسندگان
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