论文部分内容阅读
A Strategy for Adaptive Sampling When Sampling Cost Is Variable in Design Space
【机 构】
:
University of Florida, Gainesville, Florida, 32611, US
【出 处】
:
Asian Congress of Structural and Multidisciplinary Optimizat
【发表日期】
:
2018年11期
其他文献
通过控制冷轧成型工艺的轧制道次,制备了具有三种不同细观结构的Al/Ni多层复合材料。基于扫描电子显微镜获得的细观结构照片,利用Abaqus有限元分析软件建立了三种Al/Ni多层复合材料细观模型。进行了冲击压缩细观响应的数值模拟,获取了冲击载荷下材料压力分布、冲击状态方程参数及温度分布。结果 表明,不同轧制道次对Al/Ni多层复合材料在细观尺度上的颗粒尺寸、形状及分布情况均造成了影响,进一步影响了冲
针对箔材的爆炸焊接,提出了一种新的装药结构,即在蜂窝结构炸药的基础上,用胶体水对炸药上端自由面进行覆盖.该装药结构减小了空中稀疏波对爆轰的弱化,从而可以显著地降低炸药的临界厚度.本文使用5 mm厚的低能乳化炸药作为爆炸材料,0.2 mm厚的铝箔和20 mm厚的钢板作为复板和基板,进行了爆炸焊接实验.理论计算了新装药结构下的爆炸焊接动态参数,并结合爆炸窗口对焊接质量进行了预测.
研究了高速破片侵彻下,聚脲弹性体涂层对涂覆钢板结构抗侵彻性能的影响作用.通过弹道试验加载3.3 g立方体破片以1300 m/s以上速度撞击相同面密度的3.5mm厚无涂层钢板与含6mm涂层的2.7 mm厚钢板,含涂层钢板包括迎弹面涂层与背弹面涂层两种涂覆方式,获得破片贯穿不同类型靶板后的剩余速度,分析了靶板的能量吸收与抗侵彻性能.结果 表明:相同面密度下,聚脲弹性体涂层能够提高涂覆钢板结构的抗侵彻性
Conservative Reliability Index for Non-Gaussian Distributions in Reliability-Based Design Optimizati
This study focuses on developing an uncertainty quantification method for reliability-based design optimization (RBDO) when both aleatory and epistemic uncertainty present.Recently,several efficient u
会议
Energy harvesting that converts ambient,otherwise wasted,energy sources into usable electricity,has received considerable attention to power wireless sensors.Among various energy harvesting technologi
会议
Statistical model calibration using bias ratio to consider model form uncertainty:A case study of an
Due to favorable cost/benefit analysis,Computational Aided Engineering (CAE) techniques have become a nearly ubiquitous step in the engineered product development process.To improve the accuracy of CA
会议
In this study,we hope to construct a time serial model for time-dependent problems such as high velocity impact or stretching by using recurrent neural network based on convolutional neural network (R
Design optimization of variable blank holder force and slide velocity for high productivity in sheet
会议
An improved LHS approach for constrained design space based on successive local enumeration algorith
Computational simulations for engineering design and optimization are time-consuming and difficult to obtain feasible solutions.Given that,metamodels have been proposed and widely used as substitutes