振动与冲击
振動與遲擊
진동여충격
Journal of Vibration and Shock
2015年
21期
100-104
,共5页
泡沫空心球%分配层%成层式结构%防护性能
泡沫空心毬%分配層%成層式結構%防護性能
포말공심구%분배층%성층식결구%방호성능
hollow foam sphere%distribution layer%layered structure%protective property
分别采用黄沙和泡沫空心球为分配层制作不同的成层式工程结构模型,通过大比尺集团装药标准试验、对比试验和二次爆炸试验,考察了采用泡沫空心球作分配层时成层式结构的抗爆性能。试验结果表明,在相同的爆炸荷载作用下,分配层采用泡沫空心球时,成层式结构的防护层破坏比采用黄沙作分配层时严重,但分配层下方相同位置的压力前者远小于后者;相比传统成层式结构,新型成层式结构具有更好的防护效果。
分彆採用黃沙和泡沫空心毬為分配層製作不同的成層式工程結構模型,通過大比呎集糰裝藥標準試驗、對比試驗和二次爆炸試驗,攷察瞭採用泡沫空心毬作分配層時成層式結構的抗爆性能。試驗結果錶明,在相同的爆炸荷載作用下,分配層採用泡沫空心毬時,成層式結構的防護層破壞比採用黃沙作分配層時嚴重,但分配層下方相同位置的壓力前者遠小于後者;相比傳統成層式結構,新型成層式結構具有更好的防護效果。
분별채용황사화포말공심구위분배층제작불동적성층식공정결구모형,통과대비척집단장약표준시험、대비시험화이차폭작시험,고찰료채용포말공심구작분배층시성층식결구적항폭성능。시험결과표명,재상동적폭작하재작용하,분배층채용포말공심구시,성층식결구적방호층파배비채용황사작분배층시엄중,단분배층하방상동위치적압력전자원소우후자;상비전통성층식결구,신형성층식결구구유경호적방호효과。
Different layered model structures of protective engineering were constructed,their distribution layers were made with sand or hollow foam spheres,respectively.The anti-blast performance of the layered structure with hollow foam spheres as distribution layers was studied using standard tests,contrast tests and repeated anti-blast tests with a big scale and group charge.The results showed that the protective layer is damaged more seriously with hollow foam spheres as distribution layers than it does with sand as distribution layers,but the former's pressure at the same position under distribution layer is far less than the latter's;compared with the latter which is the traditional structure,the new style layered structure with hollow foam spheres as distribution layers has a better protective property.