高升限战机座舱压力的调节策略  

Strategy of cockpit pressure regulation for high ceiling fighter

作　　者：高海朋[1] 刘猛[1] 王浚[1] 

机构地区：[1]北京航空航天大学航空科学与工程学院,北京100191

出　　处：《江苏大学学报（自然科学版）》2013年第6期693-698,共6页Journal of Jiangsu University：Natural Science Edition

摘　　要：为了解决国内高升限战斗机因座舱高度超出减压病阈限高度,不能满足座舱环境基本要求的问题,提出了座舱压力的调节策略.分析典型型号战斗机座舱压力现状,将目前余压29.4 kPa提高到34.4 kPa,可满足高升限座舱环境基本要求.若适应"下降救生"到"继续飞行"的战略战术转变,保证战斗机具有座舱减压后仍能在高空飞行的能力,保证战时空中优势,座舱压力环境须满足更高要求,故基于减压病评定指标和迅速减压评定指标,提出余压44.4 kPa座舱压力控制方案.结合战斗机飞行剖面,对座舱压力调节系统进行动态仿真,对比不同余压值对飞行过程座舱压力环境的影响.结果表明,余压44.4 kPa座舱压力控制方案满足战略战术转变要求,能够保证战时空中优势.In order to solve the problem that the cockpit altitude of domestic high ceiling fighter exceeds the threshold altitude of decompression sickness,which could not satisfy basic requirements of cockpit environment,the strategy of cockpit pressure regulation was proposed.Based on the current cockpit pressure situation of typical model fighters,the basic requirements of cockpit environment were satisfied by increasing current pressure difference of 29.4 kPa to 34.4 kPa.To adapt the strategy and tactics change from ＂get-me-down＂ to ＂keep-me-up＂,and ensure high-altitude flight capability for fighters after cockpit decompression and the air superiority in the war,the cockpit pressure environment should fulfill more demanding requirements.Based on decompression sickness assessment index and rapid decompression assessment index,the cockpit pressure regulation scheme with pressure difference of 44.4 kPa was proposed.According to flight profile,the dynamic simulation of the cockpit pressure regulating system was completed to compare the effects of different excess pressure values on cockpit pressure environment in the flight process.The results show that the cockpit pressure regulation scheme with pressure difference of 44.4 kPa can satisfy the requirements of strategy and tactics changes,and can ensure the air superiority in the war.

关 键 词：座舱压力 系统仿真 战略战术 高升限 高空减压病 迅速减压 

分 类 号：V2[航空宇航科学技术]