摘要
首先确定飞机推力、过载限制以及座舱压力这三个限制因素;然后运用飞机最大爬升推力表求最大爬升推力,并对极曲线的运用得到相应的阻力,再将所得数据进行爬升公式的带入,并得到了推力限制高度。同时通过公式的转换得到飞机过载公式,通过确定飞机不同速度下的升力,最终得到相应过载下的限制高度。综合的座舱压力限制值、飞机的推力和飞机的过载限制高度,最终得到飞机的使用升限和飞机使用升限的计算方法。选定B737-800机型来进行具体的算例分析,通过对该机型进行推力限制、过载限制以及飞机座舱压力限制三个方面分析及计算,最终获得了该机型的最大使用升限。
Firstly, the three factors including the aircraft thrust, overload limit and cabin pressure are determined. Then the maximum thrust of the aircraft is used to obtain the maximum thrust force, and the use of the polar curve to get the corresponding drag. And the resulting data are taken into the climbing formula, and the thrust height is obtained. Through conversion, one can get the aircraft overload formula. By determining the lift at different speeds, one gets the limit height of corresponding overload. With integrated fxed cabin pressure limit altitude, aircraft thrust altitude and aircraft overload limit altitude, one can get the service ceiling of the aircraft, and the method of calculation. Lastly, type B737-800 is chosen as a specific analysis example. The model is analyzed and calculated in three aspects, such as thrust limitation, overload limit, and cabin pressure limit, and fnally, the service ceiling of this model obtained.
出处
《长沙航空职业技术学院学报》
2017年第3期76-82,共7页
Journal of Changsha Aeronautical Vocational and Technical College
基金
2016年天津市教育科学"十三五"规划课题"民航特色课程的慕课推广应用方式研究"(编号:HEYP5025)阶段性研究成果
关键词
飞机性能
使用升限
限制因素
fight performance
service ceiling
limitation
