CAJ | 학술논문

夹层板系统( SPS)具有优越的力学性能,在修船中应用广泛。夹芯层具有很好的缓冲作用,可作为耐撞结构应用于船舶结构设计,提高其耐撞性能。基于非线性有限元软件ABAQUS分析SPS在碰撞冲击载荷下的结构损伤变形、碰撞力和能量吸收等力学行为,并对比分析其与加筋板架、折叠式夹层板的碰撞性能,最后研究了自身结构尺寸参数对其碰撞性能的影响。研究表明,SPS具有良好的碰撞性能,优于加筋板架和折叠式夹层板。 SPS自身结构参数对其碰撞性能有一定影响,面板厚度增加,上下面板吸能明显增加,比能随着面板厚度的增加呈下降趋势,对夹芯层的吸能及比能影响不明显。夹芯层高度增加,夹芯层和上面板吸能明显增加,上面板比能增加最快,对夹芯层和下面板的比能影响不明显。
협층판계통( SPS)구유우월적역학성능,재수선중응용엄범。협심층구유흔호적완충작용,가작위내당결구응용우선박결구설계,제고기내당성능。기우비선성유한원연건ABAQUS분석SPS재팽당충격재하하적결구손상변형、팽당력화능량흡수등역학행위,병대비분석기여가근판가、절첩식협층판적팽당성능,최후연구료자신결구척촌삼수대기팽당성능적영향。연구표명,SPS구유량호적팽당성능,우우가근판가화절첩식협층판。 SPS자신결구삼수대기팽당성능유일정영향,면판후도증가,상하면판흡능명현증가,비능수착면판후도적증가정하강추세,대협심층적흡능급비능영향불명현。협심층고도증가,협심층화상면판흡능명현증가,상면판비능증가최쾌,대협심층화하면판적비능영향불명현。
Sandwich plate system(SPS) with superior mechanical performance has been widely used in ship repairing. The core has good buffer function so that it can be used as crashworthiness structures. Based on ABAQUS, the crashworthiness of SPS under collision load was analyzed, such as damage deformation, collision force and energy absorption. Then the crashworthiness of SPS was compared with stiffened plate and folded sandwich panel. At last, the influence of structural parameters on the crashworthiness of SPS was analyzed. The results show that SPS has better crashworthiness than the other two structures. Structural parameters have effects on the crashworthiness of SPS to some extent. With face thickness rising, the energy absorption of upper and lower faces rises obviously, while the specific energy decreases. With core height rising, the energy absorption of upper face and core rises obviously, and the specific energy of upper face rises fastest.