【摘要】 通过研究人体坐姿冲击耐受能力发现，冲击作用时间５０ｍｓ、峰值１９Ｇ或其他等效组合会引起人体生理反应，但不会造成损伤，可作为载人飞船或飞机分离救生舱设计参数；峰值加速度不超过２３Ｇ，不会造成脊柱损伤，可作为直升机应急坠落设计参数。研究表明，座垫、束缚系统、体位和冲击波形是影响人体耐力的重要因素。更多还原

【Abstract】 Tolerance to impact of the human body in sitting position was studied.It was found that impact lasting 50ms with peak acceleration of 19G or the equivalent combi-nations which elicit only certain physiologic responses but no injury to the human body can be taken as the standards for landing impact of manned space ship or detachable cock-pit of aircraft,while peak acceleration of 23G ean be tolerated by the human body without injury to the vertebral column and can be taken as the tolerance limit of human body for emergency crash of helicopters.It was also demonstrated that seat pad,harness system,body position and wave form of impact acceleration are important factors that influence human tolerance to impact.更多还原