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| 夹芯型雷达吸波结构的多目标优化 | |
| 引用本文： | 陈明继,裴永茂,方岱宁.夹芯型雷达吸波结构的多目标优化[J].应用数学和力学,2010,31(3). |
| 作者姓名： | 陈明继 裴永茂 方岱宁 |
| 作者单位： | 1. 清华大学,工程力学系,应用力学实验室,北京,100084 2. 北京大学,工学院,湍流与复杂系统国家重点实验室,北京,100871 3. 清华大学,工程力学系,应用力学实验室,北京,100084;北京大学,工学院,湍流与复杂系统国家重点实验室,北京,100871 |
| 基金项目： | 国家自然科学基金，科技部科研项目，爆炸科学与技术国家重点实验室基金 |
| 摘 要： | 通过引入一个无量纲参数,将重量和雷达吸波性能两个优化目标结合于同一个目标函数中,提出了针对含有多孔材料芯层的夹芯型雷达吸波结构(RASS)的一种多目标优化设计方法.优化模型为承受均布载荷的悬臂夹芯板,考虑4种不同形式的芯层.由传输矩阵法和周期矩量法计算出镜面反射率的平均值,作为表征吸波性能的指标;而面板屈服、芯层剪切破坏和面板起皱则作为优化设计中的力学性能约束.优化结果表明,以填充超轻质海绵体的复合材料二维点阵为芯层的夹芯结构,比含有多孔泡沫或六角蜂窝芯层的夹芯结构更适合作为轻质夹芯型雷达吸波结构.Kagome二维点阵则表现出优于正方二维点阵的吸波性能. |
| 关 键 词： | 夹芯结构 多目标优化 轻质 雷达波吸收 失效模式 |
Multi-Objective Optimization Design of Radar Absorbing Sandwich Structure |
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| CHEN Ming-ji,PEI Yong-mao,FANG Dai-ning.Multi-Objective Optimization Design of Radar Absorbing Sandwich Structure[J].Applied Mathematics and Mechanics,2010,31(3). | |
| Authors: | CHEN Ming-ji PEI Yong-mao FANG Dai-ning |
| Institution: | CHEN Ming-ji1,PEI Yong-mao2,FANG Dai-ning1,2(1.AML,Department of Engineering Mechanics,Tsinghua University,Beijing 100084,P.R.China,2.LTCS,College of Engineering,Peking University,Beijing 100871,P.R.China) |
| Abstract: | By introducing a dimensionless parameter to couple the two objectives,weight and radar Absorbing performance,in a single objective function,a multi-objective optimization procedure for radar Absorbing sandwich structure(RASS) with cellular core has been proposed.The optimization models considered were one-side clamped sandwich panels with four kinds of cores which were subject to uniformly distributed loads.The average specular reflectivity calculated by transfer matrix method and periodic moment method was... |
| Keywords: | sandwich structure multi-objective optimization lightweight radar absorbing failure mode |
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