摘要
本文在文[4]的基础上,对如何降低拖索释放完瞬时动态张力进行了研究。具体做了以下几件事情;1)利用拖索放完瞬时前后系统能量不变,建立拖索动态张力的近似解析表达式;2)分析拖索有关参数对动态张力影响的敏感程度,以确定优选自变量;3)研究变截面拖索分别位于不同载体情况对降低动态张力的可能性;4)进行动态张力的优化设计和变截面拖索的最佳匹配。文中以某型拖靶系统为实例进行了优化设计,效果显著。本文所提出的方法对同类系统的设计有实用价值。
On the base of article [4],this paper studies how to reduce the dynamic tension at the instant when cable is released completely. The items have been accomplished as follows: 1. To establish the approximate analytic expression of the dynamic tension of cable by using the energy conservation of system at an instant when the cable is released completely; 2. To analyze the sensitivity of relevant parameters influencing the dynamic tension in order to determine the optimal independent variables; 3. To study the possibility of reducing the dynamic tension on the cable of variable cross-sections under different carrier conditions respectively; 4. To make the optimization design of the dynamic tension and the optimal matching of the cable at various sections. In this paper,we make a compution of optimizing a certain carrying aircraft-towed target system as an example >the results are satisfactory. The method formulated by the paper is of practical value for the design of the similar system.
关键词
拖体
缆索
动态性能
张力
飞机
towed targets, cables, dynamic properties, optimization, tension
