检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]哈尔滨工程大学船舶工程学院,黑龙江哈尔滨150001 [2]中国舰船研究院,北京100192
出 处:《北京理工大学学报》2014年第6期607-612,621,共7页Transactions of Beijing Institute of Technology
基 金:国家自然科学基金资助项目(10702016)
摘 要:为研究阻拦机定长冲跑控制规律,对美国MK7-3型液压阻拦机进行了动力学建模,分析了舰载机安全阻拦着舰的性能指标及相关约束条件,提出最优加速度曲线,引入Hicks-Henne形状函数和遗传算法,对控制阀通流面积曲线进行了优化.讨论了飞机重量、进场速度和发动机推力对重量选择参数的影响和相应的修正方法,与原型机的对比显示优化后的控制规律更有利于安全着舰,提高了阻拦机的适用性.To gain the optimum regular of the constant runout control system,the kinetic model for MK7-3 arresting gear was established.The arresting performance of aircraft and the constraints were analyzed,and the optimal acceleration curve was carried out.Then,the optimization based on Hicks-Henne function and genetic algorithms(GA) was put forward.The comparison with the original control regular shows that the new control valve is more proper for the arrestment of aircraft.Finally,the kinetic simulation for different engaged speeds,weights and thrusts indicates that different aircrafts can be arrested at a constant distance and the loads on wires and the acceleration of aircrafts are proper,showing the validity and the good performance of the optimized control valve.
分 类 号:V271.492[航空宇航科学与技术—飞行器设计]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.249