摘要
针对目前舵/鳍联合减横摇系统对舵机转舵速度要求较高等问题,研究了一种在现有舵机低舵速条件下的舵/鳍联合减摇方法,可避免频繁操舵造成的舵机加剧磨损、燃料过度消耗等缺陷。依据操舵准则,在线修正原航向舵、减摇鳍指令,在允许的航向偏差范围内,达到舵/鳍联合减摇的目的。通过对船舶航行阻力、能量损耗的分析,应用遗传算法对舵/鳍联合控制中的关键因子进行优化。最后在不同海情下与原舵、鳍系统进行模拟比较,验证了该方法的有效性。与其它舵/鳍联合系统不同,该方法无需对现有舵机、鳍系统进行改造或更换,具有较好的应用价值。
Taking aim at the requirement of the high-speed steering gears in most integrated rudder/fin roll stabilization systems, an integrated rudder/fin roll stabilization method using a lower-speed steering gear was developed, to avoid the rapid wear of the steering gear and excessive fuel consumption due to frequent rudder actions. According to the rule for rudder commands, the original commands of autopilot and fin stabilizer controllers were corrected on line, to realize the integrated rudder/fin system within permissible heading errors. The key factor of integrated rudder/fin controlling was optimized by the genetic algorithm based on analyzing resistance and energy loss of the ship. Finally, the validity of this approach was proved by comparing with original rudder and fin systems in different sea-conditions. The method, which is different from other rudder/fin roll stabilization methods, doesn＇t need to improve or replace existing steering gears and fin stabilization systems, and has the better application value.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2009年第7期945-950,共6页
Acta Armamentarii
基金
国家自然科学基金资助项目(5057504850879012)
关键词
船舶、舰船工程
舵/鳍联合减摇
低速舵机
航行阻力与能量损耗
遗传算法
ship engineering
integrated rudder/fin roll stabilization
lower-speed steering gear
sailing resistance and energy loss
genetic algorithm
