+G_y作用下跟踪能力的变化  

CHANGE OF HUMAN TRACKING ABILITY UNDER +Gy STRESS

作　　者：谢宝生[1] 徐振勇 许华英 刘光远[1] 

机构地区：[1]航天医学工程研究所

出　　处：《航空学报》1989年第7期A394-A398,共5页Acta Aeronautica et Astronautica Sinica

摘　　要：一、引言 随着航空事业的长足进步,近年来在国外出现一批低翼负荷、高推重比的轻型战斗机,这种飞机机动性强,在空中能产生10～12G的头一盆向超重作用(+G_z),亦能产生侧向超重作用(±G_y)。据文献报告,这类飞机产生的侧向超重值不高。t Five young male subjects(18-23 yrs. )were exposed to +Cy stress and were tested for two dimensional tracking performance on a human centrifuge of 12 meter radius. Some physical parameters such as tracking error, output signal of side-arm controller and input signal of the compensatory tracking system and physiological parameters such as EEG and EMG were recorded. Methods of system indentification and statistics were used for data processing.It was found that subjects mean tracking error and controlling efficiency decrease and human operating dynamic parameters such as mean gain effective delay time and frequency of tracking motion are changed with increase of G value and brain load. Result of analysis showed that cause of decrease in human tracking ability may be related to arm biomechanic effect and changes of brain function under + Gy stress.

关 键 词：侧向超重 跟踪工效 脑电 肌电 

分 类 号：R852.2[医药卫生—航空、航天与航海医学]