摘要
计算了以预制凹槽、弹头、泡沫钛、泡沫铝以及探测器组成的构件以130 m/s的速度,在1/6地球引力下,冲向月球表面岩石所发生的应力应变。构件中的泡沫金属能够承受探测器的力,并提供反冲力。预制凹槽和弹头的应力为1200~2000 MPa,而泡沫钛和泡沫铝的应力分别为10 MPa和1 MPa,降低量显著,泡沫钛降低至1%,泡沫铝降低至1‰。该构件还在低温(-182.85℃)以及高温(127.15℃)下进行了一系列不同的角度碰撞实验,探测器仍可以正常工作。
The stress and strain of the components composed of prefabricated grooves,warheads,foam titanium,foam aluminum and the detector are calculated when they rush to the moon surface rocks at a speed of 130 m/s and under 1/6 gravity of earth.The foam metal in the component can bear the force of the detector and provide the recoil force.The stress of preformed groove and warhead is 1200—2000 MPa,while the stress of foam titanium and foam aluminum is 10 MPa and 1 MPa,respectively,with significant reduction.The stress of foam titanium is reduced to 1%,and that of foam aluminum is reduced to 1‰.The component has also undergone a series of different angle collision tests at low temperatures(-182.85℃)and high temperatures(127.15℃),and the detector can still operate normally.
作者
徐健
李强
杨臻
孙玉成
李中明
XU Jian;LI Qiang;YANG Zhen;SUN Yucheng;LI Zhongming(School of Mechanical and Electrical Engineering,North University of China,Taiyuan 030051,P.R.China;Institute of Military-Civilian Integration and Innovation,North University of China,Taiyuan 030051,P.R.China;China Academy of Space Technology,Beijing 100081,P.R.China;PERA of China,Beijing 100089,P.R.China)
基金
supported by the National Natural Science Foundation of China(No.51175481)
the Hubei Sannong Science and Technology Talents Project 2020—2021.
关键词
太空探索
碰撞响应
极端温度
泡沫金属
抗冲击性
space exploration
collision response
extreme temperature
foam metal
impact resistance
