A new centrifuge G profile of simulated aerial combat maneuver
10.3760/cma.j.cn113854-20201025-00152
- VernacularTitle:一种新的载人离心机模拟空战机动载荷曲线
- Author:
Haixia WANG
1
;
Xiaoyang WEI
;
Baohui LI
;
Zhigang XU
;
Jianye ZHANG
;
Xichen GENG
;
Yan XU
;
Rong LIN
;
Lihui ZHANG
;
Minghao YANG
;
Yifeng LI
;
Jinghui YANG
;
Zhao JIN
Author Information
1. 空军特色医学中心加速度生理研究室，北京 100142
- Publication Type:Journal Article
- Keywords:
Acceleration;
Unconsciousness;
Environmental exposure;
Fatigue
- From:
Chinese Journal of Aerospace Medicine
2021;32(2):81-85
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To establish a new centrifuge G load profile of simulated aerial combat maneuver (SACM).Methods:The +G z load data of fighter aircraft training at home and abroad were analyzed. A +G z profile of SACM was established according to the results of data analysis. Four volunteers wearing anti-G suit were exposed to SACM on the centrifuge and performed PHP maneuver. +G z value, electrocardiograph and the ear-pulse signal of volunteers were measured. The peripheral light loss, G-LOC or almost loss of consciousness (A-LOC) of volunteers were taken as the indicators of the G-endurance end point. The exposure time of volunteers to the endpoints or the completion of 1 group SCAM was taken as G-duration tolerance. The fatigue degree of volunteers was rated according to their subjective feelings. Results:The new 2-8 G SACM was consisted of 7 plateaus which were +4 G z for 20 s, +2 G z for 5 s, +5 G z for 10 s, +2 G z for 5 s, +6 G z for 15 s, +2 G z for 10 s and +8 G z for 5 s with an onset rate of 3 G/s. The total +G z exposure duration was 85 s. Three of 4 volunteers completed SACM centrifuge exposure. The other one experienced A-LOC and G duration tolerance was 60 s (at 6 s of 6 G z). The mean heart rate of 3 volunteers reached (200±7) beat/min at 8 G z 5 s. All volunteers "obviously felt tired" when they finished SACM exposure. Conclusions:The 2-8 G SACM porposed in the centrifuge test can be conducive to furtherly recognize the influences of the changing characteristics of +G z profiles on pilots in fighter typically operational training of this study. The volunteers′ G-duration tolerance could be preliminarily evaluated according to exposure duration, changes of vision and consciousness of SACM.
