Influence of yawing force frequency on angular motion and ballistic characteristics of a dual-spin projectile
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...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2016-04-01
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| Series: | Defence Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214914716000040 |
| _version_ | 1818573009479270400 |
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| author | Yu Wang Jie Cheng Ji-yan Yu Xiao-ming Wang |
| author_facet | Yu Wang Jie Cheng Ji-yan Yu Xiao-ming Wang |
| author_sort | Yu Wang |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-15T00:05:22Z |
| format | Article |
| id | doaj.art-67869c7d737d4dd2bdfb809645c0491c |
| institution | Directory Open Access Journal |
| issn | 2214-9147 |
| language | English |
| last_indexed | 2024-12-15T00:05:22Z |
| publishDate | 2016-04-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Defence Technology |
| spelling | doaj.art-67869c7d737d4dd2bdfb809645c0491c2022-12-21T22:42:44ZengKeAi Communications Co., Ltd.Defence Technology2214-91472016-04-0112212412810.1016/j.dt.2015.12.007Influence of yawing force frequency on angular motion and ballistic characteristics of a dual-spin projectileYu WangJie ChengJi-yan YuXiao-ming WangA 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.http://www.sciencedirect.com/science/article/pii/S2214914716000040Course correction fuzeDual-spin projectileRotate speed |
| spellingShingle | Yu Wang Jie Cheng Ji-yan Yu Xiao-ming Wang Influence of yawing force frequency on angular motion and ballistic characteristics of a dual-spin projectile Defence Technology Course correction fuze Dual-spin projectile Rotate speed |
| title | Influence of yawing force frequency on angular motion and ballistic characteristics of a dual-spin projectile |
| title_full | Influence of yawing force frequency on angular motion and ballistic characteristics of a dual-spin projectile |
| title_fullStr | Influence of yawing force frequency on angular motion and ballistic characteristics of a dual-spin projectile |
| title_full_unstemmed | Influence of yawing force frequency on angular motion and ballistic characteristics of a dual-spin projectile |
| title_short | Influence of yawing force frequency on angular motion and ballistic characteristics of a dual-spin projectile |
| title_sort | influence of yawing force frequency on angular motion and ballistic characteristics of a dual spin projectile |
| topic | Course correction fuze Dual-spin projectile Rotate speed |
| url | http://www.sciencedirect.com/science/article/pii/S2214914716000040 |
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