Investigation on the Mechanical Properties and Shape Memory Effect of Landing Buffer Structure Based on NiTi Alloy Printing  

作　　者：Zhenglei Yu Renlong Xin Zezhou Xu Yining Zhu Xiaolong Zhang Shijie Hao Zhihui Zhang Ping Liang 

机构地区：[1]State Key Laboratory of Automotive Simulation and Control,Jilin University,Changchun 130022,China [2]Key Lab of Bionic Engineering,Ministry of Education,Jilin University,Changchun 130022,China [3]Agriculture College,Yanbian University,Yanji 133002,China [4]State Key Laboratory of Heavy Oil Processing,China University of Petroleum,Beijing 102249,China

出　　处：《Chinese Journal of Mechanical Engineering》2023年第4期397-406,共10页中国机械工程学报（英文版）

基　　金：Supported by National Key R&D Program of China(Grant No.2022YFE0138500);National Natural Science Foundation of China(Grant No.51975246);Science and Technology Development Program of Jilin Province of China(Grant No.20220101192JC);Capital Construction Fund Plan within the Budget of Jilin Province of China(Grant No.2023C041-4);Chongqing Municipal Natural Science Foundation of China(Grant No.CSTB2022NSCQ-MSX0225).

摘　　要：With the deepening of human research on deep space exploration,our research on the soft landing methods of landers has gradually deepened.Adding a buffer and energy-absorbing structure to the leg structure of the lander has become an effective design solution.Based on the energy-absorbing structure of the leg of the interstellar lander,this paper studies the appearance characteristics of the predatory feet of the Odontodactylus scyllarus.The predatory feet of the Odontodactylus scyllarus can not only hit the prey highly when preying,but also can easily withstand the huge counter-impact force.The predatory feet structure of the Odontodactylus scyllarus,like a symmetrical cone,shows excellent rigidity and energy absorption capacity.Inspired by this discovery,we used SLM technology to design and manufacture two nickel-titanium samples,which respectively show high elasticity,shape memory,and get better energy absorption capacity.This research provides an effective way to design and manufacture high-mechanical energy-absorbing buffer structures using bionic 3D printing technology and nickel-titanium alloys.

关 键 词：Bionic protective structure Odontodactylus scyllarus NiTi alloy 3D printing Numerical simulation RECOVERABILITY 

分 类 号：TG174.4[金属学及工艺—金属表面处理] TG665[金属学及工艺—金属学]