| Autor: |
Hu, Jian Ping, Liu, Ya Lian, He, Xing, Wen, Jian Hua |
| Zdroj: |
Applied Mechanics and Materials; November 2012, Vol. 229 Issue: 1 p2033-2037, 5p |
| Abstrakt: |
The principle of Particle Swarm Optimization (PSO) and Homotopy Optimization (HO) is introduced. For the purpose of improving the local-searching efficiency of the PSO，HO-PSO is presented by combining the PSO with HO. New space homotopy curve produced by homotopy particle function directs the particle’s local optimization. For comparison，the methods of HO-PSO, PSO and FEM(Finite Element Method) are used to calculate the tunnel parameter inversion of the Shuibuya Project on the basis of the measured displacements. The result shows that HO-PSO takes smaller time compared with PSO and FEM in a same precision level, and the calculated values are in good agreement with the measured values，which also indicate that the HO-PSO can be well applied to the displacement back analysis in tunnel engineering. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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