HP与PHP动作与新机抗荷供氧系统结合方法及防护性能

Approach of Integrating HP and PHP Maneuver with New Aircraft Anti-G and Oxygen-supply Equipmentand Its + Gz Protection

目的建立HP与PHP动作与新机抗荷供氧装备结合应用的技术方法。方法实验对HP与PHP动作与新机抗荷供氧装备结合应用的方法进行了设计,观察6名受试者在HP动作与抗荷服装结合,PHP动作与抗荷供氧装备结合,6.5 G持续45 s抗荷性能,以及8 G持续15 s抗荷性能实验时+Gz耐力、心率(HR)、呼吸率(BR)、双下肢蹬力(Flegs)等指标的变化。结果 HP动作结合KH-X抗荷服,DC-X高空代偿服的耐力分别达到(7.25±0.39)G,和(7.13±0.59)G;KH-X和DC-X的抗荷性能均为(2.04±0.10)G(P<0.01);HP动作的抗荷效果分别为(1.83±0.49)G和(1.92±0.56)G(P<0.01)。PHP动作结合KH-X抗荷服、DC-X高空代偿服及供氧装备的耐力分别达到(7.13±0.21)G和(7.08±0.20)G;PHP动作的抗荷效果分别为(2.17±0.13)G和(2.17±0.20)G(P<0.01)。PHP动作结合KH-X抗荷服,DC-X高空代偿服的综合抗荷耐力,均达到6.5 G持续45 s及8 G持续15 s。各耐力终点时的HR,Flegs随G值增加而显著升高(P<0.05或P<0.01)。结论 HP与PHP动作与新机抗荷供氧装备结合应用的方法科学合理,既充分发挥了装备的抗荷效果,又可以合理分配体力,既节省体力,又具有良好抗荷防护性能。

Objective To establish the technical means of integrating HP and PHP maneuver with anti-G and oxygen-supply equipment of a new type aircraft and investigate its effects. Methods Experiments of HP maneuver integrated with anti-G suits,PHP maneuver integrated with anti-G and oxygen-supply equipment,6. 5G for 45 s and 8 G for 15 s were designed and carried out on human centrifuge. The changes of ＋ Gz tolerance,heart rate（ HR）,breathing rate（ BR）,and force of legs（ Flegs） were observed. Results ＋ Gz tolerance when employing HP maneuver with KH-X anti-G suit or DC-X pressure suit was significantly elevated to（ 7.25 ±0.39） G and（ 7.13 ±0.59） G respectively（ P〈0.01）. Both anti-G capability of KH-X and DC-X were（ 2. 04 ± 0. 10） G. The protection capabilities provided by HP maneuver were（ 1. 83 ± 0. 49） G and（ 1.92 ±0.56） G respectively. Integrated ＋Gz protection afforded by PHP maneuver and anti-G and oxygensupply equipment was elevated to（ 7. 13 ± 0. 21） G（ wearing KH-X） and（ 7. 08 ± 0. 20） G（ wearing DC-X）respectively,in which the contribution of PHP maneuver was（ 2. 17 ± 0. 13） G and（ 2. 17 ± 0. 20） G respectively（ P〈0. 01）. All subjects could stand at 6. 5 G for 45 s,and 8 G for 15 s when protected with KH-X anti-G suit /DC-X pressure suit and PHP maneuver. HR and Flegsat each tolerance endpoint increased significantly with the increment of ＋ Gz exposure. Conclusions The combination of HP and PHP maneuver with anti-G and oxygen-supply equipment is scientific and operational,which can offer a satisfactory ＋ Gz protection for the least fatigue and the tactical and technical requirements of high ＋ Gz protection for the new aircraft.