| 机场视距检查的动态直线算法研究 |
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| 引用本文： | 许巍,宋颖,李明锋. 机场视距检查的动态直线算法研究[J]. 四川建筑科学研究, 2012, 0(5): 329-332 |
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| 作者姓名： | 许巍 宋颖 李明锋 |
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| 作者单位： | [1]空军工程大学工程学院,陕西西安710038 [2]西安财经学院公共外语教学部,陕西西安710100 [3]广空机场工兵勤务队,广东广州510630 |
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| 摘 要： | 基于飞行员视线和机场跑道纵坡线型特点,应用求导计算、图形分析的方法,研究了机场视距安全要求,提出了视距检查的动态直线算法,给出了算法流程图,并编制了应用软件。结合设计实例对算法及程序进行了检验,发现视距安全检查时间大大缩短,计算结果避免了奇异值的出现,检查结论的几何意义明晰、有效。结果表明,该算法可较好地评价机场纵坡线型的视距安全,可以应用于机场地势设计工作。
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| 关 键 词： | 机场 视距 视线 视线高度 动态直线算法 |
Study of dynamic-line algorithm on checking sight distance of airfield |
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| XU Wei,SONG Ying,LI Mingfeng. Study of dynamic-line algorithm on checking sight distance of airfield[J]. Building Science Research of Sichuan, 2012, 0(5): 329-332 |
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| Authors: | XU Wei SONG Ying LI Mingfeng |
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| Affiliation: | 1. School of Engineering,Air force Engineering University,Xi＇an 710038 ,China; 2. Xi＇an University of Finance and Economics,School of Collage English,Xi＇an 710100,China; 3. Air Force Airfield Engineering and Logistic Department of Guangzhou Branch, Guangzhou 510630,China) |
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| Abstract: | Based on derivative and graphics analyzing, this paper studied the checking method of sight distance with characteristic of line of sight and vertical section of runway, put forward dynamic-line algorithm on checking the rationality of sight distance of airfield, presented flow chart of computer program, and realized the program. By applying the algorithm and program, two examples were analyzed. It is pointed that the checking time is shortened, and the final values of checking result avoid the singular solution. The result indicates that the algorithm is feasible and can reasonably check the rationality of sight distance of airfield. 6figs,8 refs. |
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| Keywords: | airfield sight distance line of sight eye-level elevation dynamic-line algorithm |
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