CAJ | 학술논문

目的在载人离心机+Gg环境中获取飞行员综合显示头盔位移的客观测量数据和受试者主观评价数据,探讨综合显示头盔稳定性的离心机试验评价方法. 方法 12名健康男性受试者,按随机数字表法分为A、B两组,每组6人.测试的飞行员综合显示头盔分为A型和B型(包括BⅠ和BⅡ).A组测试A型综合显示头盔,B组测试BⅠ、BⅡ型综合显示头盔.在载人离心机上,按预设的不同“梯形”加速度曲线完成各型头盔测试.G值增长率为3 G/s,峰值期持续10s.A型测试载荷峰值为3.5、4.0、5.0、5.5、6.0 G;BⅠ型测试载荷峰值为3.5、5.0、6.5、7.0、8.0 G;BⅡ型测试载荷峰值为3.5、5.0、6.0、6.5、7.0、8.0G.在离心机座舱内受试者正前方安装高清摄像机,记录不同载荷条件下头盔位移的视频,利用SigmaScan Pro软件计算出头盔位移的客观数据;同时受试者根据对显示信息的观察,在显示信息的纸质画面上记录信息变化,取得量化的主观数据.利用SPSS 19.0统计软件进行主、客观数据与G值之间的相关性分析. 结果 3种综合显示头盔的位移客观测量数据和主观描述视场下移量的数据均与G值呈高度正相关(r=0.847～0.994,P＜0.05),且客观数据与主观数据之间也呈显著正相关(r=0.542～0.602,P＜0.01). 结论本离心机试验方法获得的综合显示头盔位移客观数据可较真实地反映头盔显示信息视场的变化,与G值相关性强,能够用于判断飞行员综合显示头盔在载荷环境中的稳定性,可为该类型装备的设计、改进和鉴定提供测试手段.
목적 재재인리심궤+Gg배경중획취비행원종합현시두회위이적객관측량수거화수시자주관평개수거,탐토종합현시두회은정성적리심궤시험평개방법. 방법 12명건강남성수시자,안수궤수자표법분위A、B량조,매조6인.측시적비행원종합현시두회분위A형화B형(포괄BⅠ화BⅡ).A조측시A형종합현시두회,B조측시BⅠ、BⅡ형종합현시두회.재재인리심궤상,안예설적불동“제형”가속도곡선완성각형두회측시.G치증장솔위3 G/s,봉치기지속10s.A형측시재하봉치위3.5、4.0、5.0、5.5、6.0 G;BⅠ형측시재하봉치위3.5、5.0、6.5、7.0、8.0 G;BⅡ형측시재하봉치위3.5、5.0、6.0、6.5、7.0、8.0G.재리심궤좌창내수시자정전방안장고청섭상궤,기록불동재하조건하두회위이적시빈,이용SigmaScan Pro연건계산출두회위이적객관수거;동시수시자근거대현시신식적관찰,재현시신식적지질화면상기록신식변화,취득양화적주관수거.이용SPSS 19.0통계연건진행주、객관수거여G치지간적상관성분석. 결과 3충종합현시두회적위이객관측량수거화주관묘술시장하이량적수거균여G치정고도정상관(r=0.847～0.994,P＜0.05),차객관수거여주관수거지간야정현저정상관(r=0.542～0.602,P＜0.01). 결론 본리심궤시험방법획득적종합현시두회위이객관수거가교진실지반영두회현시신식시장적변화,여G치상관성강,능구용우판단비행원종합현시두회재재하배경중적은정성,가위해류형장비적설계、개진화감정제공측시수단.
Objective To establish centrifuge testing measurement on the stability of pilot integrated display helmets,we investigated the objective and subjective movement data of the helmet under the sustained +Gz environment.Methods Twelve healthy male volunteers were randomly and averagely divided into 2 groups according to random number table:group A and group B.There were two types of the integrated display helmets tested:type A and type B (included BⅠ and BⅡ).Type A helmet was tested by group A.Type BⅠ and B Ⅱ helmets were tested by group B.The different type helmet tests were performed in different trapezium curve profile preconfigured.Onset rate was 3 G/s.The G peak value duration was 10 s.The test loads for type A were 3.5,4.0,5.0,5.5 and 6.0 G.The test loads for type B Ⅰ were 3.5,5.0,6.5,7.0 and 8.0 G.The test loads for type B Ⅱ were 3.5,5.0,6.0,6.5,7.0 and 8.0 G.A video camera was fixed in front of the subject in the centrifuge gondola and recorded the movement of helmet.The software SigmaScan Pro was applied for computing the slippage displacement of helmet under different +Gz conditions.At the same time,the movement scale in field of view were reported by subject and digitized.The SPSS 19.0 was applied for correlation analysis between objective data,subjective data and G level.Results The objective displacement and subjective movement scale of 3 types helmet were positively correlated (r=0.847-0.994,P＜0.05) with G level respectively,and were positively correlated (r=0.542-0.602,P＜ 0.01) with each other.Conclusions The pilot integrated display helmets displacement objective data,acquired by author's centrifuge tests,could reflect accurately the field of view change and was positively correlated to G level.The measure can be applied to assess the helmet stability in acceleration environment and provide test measurement for design,improvement and judgment of the same type equipment.