学术论文

      积冰条件下飞机飞行包线保护方法研究

      Icing Effects on Aircraft Handling Characteristics

      摘要:
      针对机翼结冰,采用积冰严重程度参数描述积冰对飞机气动特性的影响;将积冰严重程度参数引入飞机六自由度非线性动力学模型,应用SIMULINK建立了随积冰严重程度而变化的时变飞机仿真模型;以飞机迎角作为关键参数,通过实时在线计算飞机结冰后的失速迎角,建立了开环状态下的飞机结冰包线保护系统;对俯仰姿态下的飞机积冰过程进行了仿真.结果表明:该系统能使飞机保持在安全迎角内,保证积冰条件下飞行安全.
      Abstract:
      Aiming at the icing problem of wing,a icing degree parameter was used to describe the ice effects on aircraft aerodynamic parameter;This parameters was introduced into nonlinear six degrees-of-freedom dynamic model of plane;A time-varying simulation model was established with SIMULINK,which varying with this parameter;Based on the attack angle of the aircraft,a aircraft icing envelope protection system is established by the real-time calculation of the stall attack angle.A pitch attitude keeping model was simulated.The results displayed that the system can keep the aircraft in a safe attack angle.Thus the icing conditions of flight safety can be ensured.
      作者: 张义浦 [1] 李静 [2] 张志春 [1]
      Author: ZHANG Yipu [1] LI Jing [2] ZHANG Zhichun [1]
      作者单位: 空军航空大学 军事仿真技术研究所,长春,130022 空军航空大学 飞行器动力系,长春,130022
      刊 名: 兵器装备工程学报 ISTIC
      年,卷(期): 2017, 38(9)
      分类号: V244.1+5
      在线出版日期: 2018年1月3日
      基金项目: 吉林省自然基金资助项目