可膨胀再入防热锥的技术进展

长期以来返回式飞行器为承受再入气动载荷和着陆冲击 ,采用具有防热层的刚性飞行器壳体 ,导致返回舱的质量和外形大于有效载荷的数倍。柔性可膨胀再入防热锥可解决上述不足之处 ,这种锥形返回舱在返回前进行充气改变其气动特性 ,使在返回过程中达到所需的气动参数和最终着陆速度。可膨胀再入防热锥技术能使有效载荷舱获得广泛用途 ,不但能使航天员、货物和昂贵的硬件安全返回地面 ,还能在载人飞行遇险时作为应急救生的有效措施 ,以及在未来火星探测中发挥积极作用。

Inflatable Re-entry Shield of Payload Recovery Technology

A rigid aeroshell for aerodynamic deceleration and landing impact will result in mass and sizes of the re_entry vehicles exceeding several times those of the payload bus.Soft inflatable re_entry shield has the advantage of metallic shield. Inflatable shield can be deployed into desired aerodynamic shape of the descent vehicle to meet the terminal landing impact. The decrease of the mechanical thermal loads during descent provides the reliable landing of the payload or astronauts onto planets with atmosphere as well as space rescue activities.