面向操纵品质评估的多状态故障选定方法
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摘要
操纵品质等级评估要素包括飞行包线、大气扰动和系统状态。对多状态故障进行描述,结合贝叶斯网络,提出多故障元件串并联系统的状态概率计算方法。建立操纵品质等级与飞机处于飞行包线某处、遭遇某等级大气扰动以及某系统故障的关系模型,模型反映了不同状态下飞机应满足的最低操纵品质等级。分析控制增稳系统各故障状态,计算升降舵在正常、部分故障、完全失效情况下的概率和应满足的最低操纵品质,对比得出升降舵发生只偏转25%的状态概率最小,所需满足的最低操纵品质最低。
Aircraft′s handling quality relates heavily with the states offlight envelope,atmospheric disturbance and aircraft systems.Multi-state units are discribed.A method,based on Bayesian network,calculating different probabilities of series-parallel connection systems is proposed.A relationship moddle among the handling quality rate,the probability of that the aircraft is somewhere in the flight envelope,the probability of that the encountering certain level of atmospheric disturbance and of system failure is bulit to determine the minimum handling quality rate.This method may provide basis for the selection of the list of handling quality evaluation failures.The fault states of the control stabilization system are analysised,the probability of the elevator in normal,partial failure,complete failure and the minimum maneuvering quality that should be met are calculated.The study shows that the probability of 25% deflection is the minmum,and the minimum handling quality is the lowest.
Aircraft′s handling quality relates heavily with the states offlight envelope,atmospheric disturbance and aircraft systems.Multi-state units are discribed.A method,based on Bayesian network,calculating different probabilities of series-parallel connection systems is proposed.A relationship moddle among the handling quality rate,the probability of that the aircraft is somewhere in the flight envelope,the probability of that the encountering certain level of atmospheric disturbance and of system failure is bulit to determine the minimum handling quality rate.This method may provide basis for the selection of the list of handling quality evaluation failures.The fault states of the control stabilization system are analysised,the probability of the elevator in normal,partial failure,complete failure and the minimum maneuvering quality that should be met are calculated.The study shows that the probability of 25% deflection is the minmum,and the minimum handling quality is the lowest.
引文
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[4] 薛漾,王建新,厉耀威.基于贝叶斯网络的航班延误与风险共因性研究[J].航空计算技术,2015,45(1):48-51.
[5] 冯鑫,刘君强,冯月贵,等.基于业务持续性的航空公司机务维修安全评估[J].航空计算技术,2016,46(1):31-35.
[6] Chen Mingtai.Flight Test Guide for Certification of Transport Category Airplanes[M].Shanghai:Shanghai Jiaotong University Press,2013.
[7] 张彤.HQRM方法在适航审定实践中的应用[J].飞行力学,2013,31(6):553-557.
[8] 张雅妮,李岩,金镭.电子飞控飞机的飞行品质适航验证[J].飞行力学,2012,30(2):117-120.
[9] 王育平,徐南波.基于飞控系统故障后的飞行品质评定方法适航验证技术研究[J].民用飞机设计与研究,2013(3):19-20.
[10] 张海妮,贾晓鹏,程伟豪.基于HQRM的系统故障下的操纵品质评定技术[J].飞行力学,2015,33(6):555-559.
[11] 王勇,刘庆灵.某型飞机纵向静稳定性试飞方法研究[J].民用飞机设计与研究,2016(3):66-68.
[12] 周堃,王立新,谭详升.放宽静稳定电传客机纵向短周期品质评定方法[J].航空学报,2012,33(9):1606-1615.
[13] 赵安家,孟哲理,高洪权,等.飞行包线对飞行安全影响研究[J].飞机设计,2017(1):11-16.
[14] 肖业伦.大气扰动中的飞行原理[M].北京:国防工业出版社,1993.
[15] 乔文峰.大气扰动建模及在民机工程应用中的研究[J].民用飞机设计与研究,2018(1):104-108.
[16] 吴森堂.飞行控制系统[M].北京:北京航空航天大学出版社,2013.
[17] 古莹奎,邱光琦,储茜.多状态串并联系统工作性能及其状态概率分析[J].江西理工大学学报,2013(3):60-66.
[18] SAE.ARP4754A,Guidelines for Development of Civil Aircraft and Systems[S].USA:SAE,2009.