基于自适应Kriging代理模型的工程机械结构优化设计方法
|
|
刘鑫,吴青锋,杨文广
|
Optimization design method for construction machinery structure based on adaptive Kriging surrogate model
|
|
Xin LIU,Qingfeng WU,Wenguang YANG
|
|
| 表3 数值算例2中不同加点方法下的收敛性能 |
| Table 3 Convergence performance under different node-adding methods in numerical example 2 |
|
| 方法 | 迭代步 | 新加入样本数量/个 | 总样本数量/个 | 最大相对 误差/% |
|---|
| 本文方法 | Step 1 | 0 | 15 | 91.86 | | Step 2 | 3 | 18 | 33.35 | | Step 3 | 3 | 21 | 12.87 | | Step 4 | 3 | 24 | 6.74 | | EI方法 | Step 1 | 0 | 15 | 91.86 | | Step 2 | 1 | 16 | 122.79 | | Step 3 | 1 | 17 | 96.51 | | Step 4 | 1 | 18 | 103.45 | | Step 5 | 1 | 19 | 51.30 | | Step 6 | 1 | 20 | 60.62 | | Step 7 | 1 | 21 | 7.63 | | Step 8 | 1 | 22 | 100.17 | | Step 9 | 1 | 23 | 91.90 | | Step 10 | 1 | 24 | 8.77% | | PI方法 | Step 1 | 0 | 15 | 91.86 | | Step 2 | 1 | 16 | 70.02 | | Step 3 | 1 | 17 | 150.01 | | Step 4 | 1 | 18 | 39.75 | | Step 5 | 1 | 19 | 49.35 | | Step 6 | 1 | 20 | 40.34 | | Step 7 | 1 | 21 | 77.75 | | Step 8 | 1 | 22 | 41.64 | | Step 9 | 1 | 23 | 83.66 | | Step 10 | 1 | 24 | 4 643.46 |
|
|
|