燃气收缩式作动器——一种新颖高效的着陆缓冲装置

A Pneumatic Muscle Actuator (PMA) —— New Efficient Landing Attenuation Device

文章介绍一种新颖的着陆缓冲装置——燃气收缩式作动器。可是在回收物体乘降落伞着陆前,通过回收物体快速向上（向降落伞方向）提升,抵消物伞系统的垂直下降速度,从而达到回收物体以很小的速度着陆,实现回收物体的软着陆。

The paper introduces a new kind of landing attenuation device. Shortly before impact, payload supend-ed from main parachute is contracted strongly upward toward the parachute by the actuator, and reduces the payload landing velocity for the soft landing of cargo and vehicles.