摘要
为研究钢聚氨酯夹层板(steel-polyurethane sandwich plate, SPS)舱口盖的力学性能,以结构变形和应力为设计目标,选取舱口盖7个主要设计变量,对SPS舱口盖进行静强度分析,并根据分析数据建立结构变形和应力的随机森林(random forest,RF)预测模型。预测结果表明,结构变形和应力的平均相对误差分别为3.71%和2.93%,预测精度较高,可满足工程应用。
To study the mechanical properties of steel-polyurethane sandwich plate(SPS) hatch cover, using seven main design variables of the hatch cover, the static strength of SPS hatch cover is analyzed taking structural deformation and stress as design objective. The random forest(RF) forecasting model for structural deformation and stress based on analytical data is established. The prediction results show that the average relative errors of structural deformation and stress are 3.71% and 2.93% respectively. The prediction accuracy is high, which can meet the engineering application.
作者
田阿利
魏震
TIAN Ali;WEI Zhen(School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology,Zhenjiang 212000, Jiansu, China)
出处
《计算机辅助工程》
2019年第3期39-42,共4页
Computer Aided Engineering
基金
高技术船舶科研项目(K24367)
关键词
钢聚氨酯夹层板
舱口盖
变形
应力
设计变量
随机森林
steel-polyurethane sandwich plate
hatch cover
deformation
stress
design variable
random forest
