舰用V型夹层板抗冲击载荷压皱性能研究  

Crushing Performance of V-Type Sandwich Panel under Shock Load

作　　者：陈林[1] 庞福振 张延昌[2] 郑律[1] 

机构地区：[1]哈尔滨工程大学,哈尔滨150001 [2]江苏科技大学,镇江212003

出　　处：《中国造船》2012年第4期29-36,共8页Shipbuilding of China

基　　金：中国博士后基金项目(20100471026);黑龙江青年科学基金项目(QC2011C013);哈尔滨科技创新人才研究专项基金项目(2011RFQXG2011)

摘　　要：基于有限元方法开展V型折叠式夹层板横向压皱性能研究。通过试验,验证计算方法的有效性,还研究了夹芯层结构参数对压皱性能的影响。计算表明:V型夹芯层是主要的吸能结构,具有较大的第一峰值载荷,较稳的平台载荷且具有一定的压皱行程,体现出良好的吸能特性,是较为理想的吸能结构形式。夹芯层吸能随着壁厚和角度的增加而增加,随高度的增加而减小,但夹芯层高度的增加可以增加结构的有效压皱行程,即增加碰撞的缓冲时间。这项研究对V型夹层板的抗冲击设计与优化具有一定的参考价值。This paper presents a research on crushing performance of V-type sandwich panel under lateral load based on finite element method. Experiment is carried out to verify the effectiveness of the calculation method. Finite element software is applied to analyze the effect of structural parameters on the crushing performance on core layer. It is shown that V-type core layer is a main energy absorption structure with good energy absorption characteristics, such as high first peak load, stable platform for a certain trip. That is, it is an ideal energy-absorbing structure form. The energy absorption of core layer increases with the increase of its thickness and angle, but reduces with the increase of its height. However, the increase of the height can increase effective distance and buffer time of collision. The study will provide certain reference for design and optimization of V-type sandwich panel.

关 键 词：V型夹层板 数值仿真 实验研究 压皱 吸能 

分 类 号：U661.4[交通运输工程—船舶及航道工程]