陈昌荣.波音737-800飞机起飞性能随襟翼放出量的变化特点[J].民用飞机设计与研究,2014,(2):37-
波音737-800飞机起飞性能随襟翼放出量的变化特点
Characteristics of the Takeoff Performance Variations of B737-800 Airplane with the Flap Deflection
  
DOI:
中文关键词:前缘缝翼  起飞性能  后缘襟翼
英文关键词:Leading Edge Slats  Takeoff Performance  Trailing Edge Flaps
基金项目:
作者单位
陈昌荣 上海工程技术大学,上海 201620 
中文摘要:波音737飞机与其他民用机型的一个不同之处是前缘缝翼在起飞时可以使用开缝状态。分析了波音737-800飞机下列四个起飞性能参数与襟翼放出量的关系:场地长度限制的最大起飞重量;爬升梯度限制的最大起飞重量;障碍物限制的最大起飞重量;起飞决断速度。结果显示这四个参数在襟翼放出量为10 时出现异常,原因是前缘缝翼状态发生了变化。在襟翼放出量由5 增大到10 的过程中,前缘缝翼由不开缝的放出状态变成开缝的完全放出状态,降低了升力系数。
英文摘要:One characteristic of B737 airplane is that the slotted extension state of the leading edge slats can be applied in the takeoff, while other types of airplanes do not apply this state in the takeoff. In this paper, the relationships between the flap deflection and the following four parameters of the takeoff were analyzed: the maximum takeoff weight limited by field length, the maximum takeoff weight limited by climb gradient, the maximum takeoff weight limited by obstacles and the takeoff decision speed. The results show that these four parameters of takeoff are abnormal when the flap deflection is 10. The reason is that the extension state of the leading edge slats is changed. During the increase of the flap deflection from 5 to 10, the extension state of the leading edge slats is changed from the sealed extension state to the slotted extension state, and such a change of state causes a decrease of the lift coefficient.
点击次数: 952
下载次数: 3303
查看全文  查看/发表评论  下载PDF阅读器