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波纹倾角对填充式波纹夹层结构超高速撞击防护性能影响
南博华1,陈以传1,卢佳1,郭锐2,黄凤1
1.上海航天设备制造总厂有限公司,上海 200245;2.南京理工大学,南京 210094
摘要:
基于SPH方法模拟了空间碎片撞击波纹倾角分别为30°、45°、56°和60°的填充式波纹夹层结构的过程,对其超高速撞击防护性能进行了比较,研究了波纹倾角对填充式波纹夹层结构超高速撞击防护性能的影响。结果表明,撞击形成碎片云的膨胀程度随波纹倾角的增大而变大,倾角为56°时该结构对空间碎片的破坏最大;四种结构所转化的不可逆功相差很小,波纹倾角对结构的不可逆功转换的影响较小;不同波纹倾角的结构航天器舱壁损伤不同,倾角为56°时航天器舱壁损伤程度最小,其在四种结构中具有最佳的防护性能。
关键词:  填充式波纹夹层结构,波纹倾角,防护性能,超高速撞击
DOI:10.12044/j.issn.1007-2330.XXXX.XX.001
分类号:TB383
基金项目:
Corrugation Obliquity of Stuffed Corrugation-cored Sandwiches Effect onHypervelocity Impact Protection Characteristics
NAN Bohua1, CHEN Yichuan1, LU Jia1, GUO Rui2, HUANG Feng1
1.Shanghai Aerospace Equipments Manufacturer Co.,Ltd,Shanghai 200245;2.Nanjing University of Science and Technology,Nanjing 210094
Abstract:
Based on the SPH method simulated process that the corrugation obliquity of stuffed corrugation-cored sandwiches is 30°,45°,56° and 60° impacted by space debris,and hypervelocity impact protection characteristics was compared,so,the corrugation obliquity of stuffed corrugation-cored sandwiches effect on hypervelocity impact protection characteristics was studied. The results show that expansion degree of debris cloud by impact is increscent by corrugation obliquity,and when the corrugation obliquity is 56°that the damage stuffed corrugation-cored sandwiches to space debris is the most bad; the difference of no-reversible work that four kinds structure translated is little,that show,corrugation obliquity effect on the no-reversible work transform is lesser;the damage in the spacecraft wall that be protect by different corrugation obliquity stuffed corrugation-cored sandwiches is different,when the corrugation obliquity is 56°that damage in the spacecraft wall is least,so,the protection characteristics is best in the four kinds corrugation obliquity structure.
Key words:  stuffed  corrugation-cored  sandwiches,corrugation  obliquity,protection  characteristics,hypervelocity  impact