高速气流吹袭时人上肢气动力特性

发布时间：2018-05-21 16:35

本文选题：弹射座椅 + 风洞试验　；参考：《航天医学与医学工程》2003年05期

【摘要】：目的研究抬腿和不抬腿两种姿态下有 /无防护时 ,人上肢的气动力特性。方法在FL 2 4风洞中进行 1 /5人椅模型跨超声速风洞试验 ,研究人上肢各部的气动力特性。马赫数M =0 .4～ 2 .0 ,俯仰角α =5°～ 30°,侧滑角 β=0°～ 90°,雷诺数Re =( 0 .93～ 3.1 )× 1 0 6。结果 1 )抬腿对上肢气动特性有明显影响 ,其影响大小与抬腿状态有关 ;2 )侧滑一般使上肢气动载荷明显增加 ,特别是 β =5 0°是试验中上肢载荷比较严重的状态 ;3)所研究的防护装置 ,特别是导流板 ,对上肢的保护作用明显 ;4)提出了人上肢气动力的计算公式。结论 1 )本研究的防护装置 ,特别是导流板 ,对上肢的保护作用明显。 2 )本研究可为研制人上肢高速气流吹袭防护装置和制定相关标准提供可靠依据 ;3)人上肢气动力的计算可使用本文公式。
[Abstract]:Aim to study the aerodynamic characteristics of human upper limbs with or without protection in leg lifting and no leg lifting. Methods the transonic wind tunnel test of a 1 / 5 chair model was carried out in the FL 24 wind tunnel to study the aerodynamic characteristics of the upper limbs. The Mach number is 0. 4 ~ 2. 0, the pitch angle is 5 掳~ 30 掳, the side slip angle is 0 掳~ 90 掳, the Reynolds number is (0. 93 ~ 3. 1) 脳 10 6. Results 1) leg lift has obvious influence on the aerodynamic characteristics of upper limb, and its influence is related to the state of leg lift. (2) Side-slip generally increases the aerodynamic load of upper limb. In particular, the protective device studied in this paper, especially the diversion plate, whose protective effect on the upper limb is obvious. (4) the formula for calculating the aerodynamic force of the human upper limb is put forward. Conclusion 1) the protective effect of the protective device, especially the guide plate, on upper limb is obvious. 2) this study can provide a reliable basis for the development of a high speed air blast protection device for human upper limbs and the formulation of relevant standards. This formula can be used for the calculation of aerodynamic forces of human upper limbs.
【作者单位】：航天医学工程研究所航天医学工程研究所
【基金】：国家载人航天工程项目资助
【分类号】：R85

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