飞机客舱内不同计权方式下振动指标对比研究  

Study on Vibration Indicators under Different Weighting Methods in Aircraft Cabin

作　　者：王鑫[1] 李凯翔[1] 张飞[1] 代承霖 白春玉[1] Wang Xin;Li Kaixiang;Zhang Fei;Dai Chenglin;Bai Chunyu(Aircraft Strength Research Institute of China,Xi′an 710065,Shaanxi,China)

机构地区：[1]中国飞机强度研究所,陕西西安710065

出　　处：《工程与试验》2023年第1期34-38,共5页Engineering and Test

摘　　要：通过某型客机飞行测试,获取滑跑、起飞、爬升、巡航、下降、着陆和滑行等7种典型状态下的振动环境,分析加速度对人体的影响,对比研究了用BS 6841(1987),ISO 2631(1997)以及优化后的频率计权方式作为表征全身振动的加速度均方根值(r.m.s.)和振动剂量值(VDV)的方法。结果表明,根据不同标准提供的不同计权方式对全身振动加速度进行计算,总体上ISO 2631(1997)计算结果大于BS 6841(1987),改良后的计权大于ISO 2631(1997)。改良后的计权对滑跑和滑行状态下的全身振动影响较小;在起飞、爬升、下降、着陆过程中,对中排座椅的影响较大,其加速度平均增加率为25%;在巡航状态,改良后的计权对中排座椅加速度的放大作用达到最大,为95.3%。In order to obtain the vibration environment under seven typical states of a large passenger aircraft,such as skidding,take-off,climbing,cruising,descending,landing and taxiing,the flight data are tested to analyze the impact of acceleration on human body.BS 6841(1987),ISO 2631(1997)and the optimized frequency weighting method are contrasted and studied to characterize the rms value(r.m.s.)and vibration dose value(VDV)in whole-body vibration.The results show that,using different weighting methods provided by different standards to calculate the acceleration of whole-body vibration,the calculation result of ISO 2631(1997)is greater than that of BS 6841(1987),and the improved weighting is greater than ISO 2631(1997).The improved weighting has less effect on whole-body vibrations in both skidding and taxiing states.In the process of take-off,climbing,descending and landing,the impact on the middle row seat is greater,and its acceleration average increase rate is 25%.In the cruising state,the improved weighting effect on the acceleration of the middle row seat is up to 95.3%.

关 键 词：飞机舱室 振动舒适性 计权加速度 全身振动 

分 类 号：V216.5[航空宇航科学与技术—航空宇航推进理论与工程]