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�������պ����ѧѧ�� 2011, Vol. 37 Issue (10) :1207-1210    DOI: CNKI:11-2625/V.20111020.1126.010
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Flight operations risk diagnosis method on quick-access-record exceedance
Qi Mingliang, Shao Xueyan, Chi Hong*
Institute of Policy and Management, Chinese Academy of Sciences, Beijing 100190, China

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ժҪ ����ij���͵Ŀ��ٴ�ȡ��¼��(QAR,Quick Access Record)����,�Էɻ���½�׶γ��ֵ�ijһQAR�����¼�,ѡȡ�ɻ��½��ʡ������ǵȷ���Ա�ۺϲ���ָ�������ߵ�߶�20 feet(1 feet=0.304 8 m)����ֵ�Լ�20~0 feet֮��ı仯��,��������Щָ�깹�ɵ�"�ռ�"�з�����QAR�����¼���"�߷����ӿռ�".��ͬһ����ͬһ���͵Ķ���������ݳ��������õ�,��½���ش���62 t����½�¶�С��32��ʱ,����������QAR��������ռ�Ƚӽ�,�����������ز��Ǹ������ռ���QAR�����¼�����Ҫ����.Ϊ��һ�����,�Գ����¼����������ΪĿ��,�Ի��ֿռ��а�������������һ��������׼ΪԼ��,������ѧģ��,���Իƽ�ָΪ����������㷨,�ҳ���Щ����ָ��������ı߽�ֵ,�Դ���Ͽ��ܴ�����QAR�����¼��ĸ߷�������,Ϊ����Աģ��������ѵ���ṩָ��.
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Abstract�� Based on the data of quick access record(QAR), a mathematical model was formulated to find the high risk subspace-, which has high probability for a special QAR exceedance in landing stage, in the space- consisted of the flight operation indexes, such as decline rate, aircraft pitch, etc. Focusing on this QAR exceedance, data of above mentioned indexes at 20 feet radio altitude and their change ratios from 20 feet to 0 feet were considered in the method. Preliminary analysis shows that the QAR exceedance samples and the normal samples have a similar ratio in the scope with more than 62 tons total-landing-weight and less than 32 Celsius degrees landing-temperature. This result reflects that environmental factors in this scope may be not the main mechanism of this QAR exceedance. For elaborately diagnosing these samples, the objective of the mathematical model is maximum ratio of QAR exceedance; the subspace- must satisfy certain sample size. An algorithm based on golden section was provided, and threshold values of each index were found. The result would guide the pilot’s simulation pertinence training.
Keywords�� QAR(quick access record) exceedance   flight operations   risk diagnosis   golden section   aviation safety management     
Received 2010-05-28;
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About author: ������(1974-),��,����������,���о�Ա,mlqi@casipm.ac.cn.
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������, ��ѩ��, �غ�.QAR�����¼����в���������Ϸ���[J]  �������պ����ѧѧ��, 2011,V37(10): 1207-1210
Qi Mingliang, Shao Xueyan, Chi Hong.Flight operations risk diagnosis method on quick-access-record exceedance[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2011,V37(10): 1207-1210
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http://bhxb.buaa.edu.cn//CN/CNKI:11-2625/V.20111020.1126.010     ��     http://bhxb.buaa.edu.cn//CN/Y2011/V37/I10/1207
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