Probability modeling for robustness of multivariate LQG designing based on ship lateral motion |
| |
Authors: | Zhao Xi-ren Peng Xiu-yan Yin Zhong-feng |
| |
Affiliation: | (1) School of Automation, Harbin Engineering University, 150001 Harbin, China |
| |
Abstract: | The robustness of LQG designing for latitudinal movement of ship is mainly discussed, when its hydrodynamic parameters fluctuate around criterion value at random on the proportional distributing. When a given ship state at the speed of 18 kn and the course of 45° under Rank 5 state of sea, and the hydrodynamic parameters of the ship fluctuate at random on the proportional distributing with a range of ±10%, ±20%, ±30%, the robustness of multivariate LQG designing for ship is analyzed with applying the probability modeling of relative controlling effect. The result of simulating shows that when the hydrodynamic parameters of ship fluctuates the relative controlling effect of the LQG designing submit to normal distribution and the mean value of relative controlling effect has no remarkable changes comparing to that without perturbation of hydrodynamic parameter. |
| |
Keywords: | hydrodynamic parameters perturbation LQG designing statislic modeling |
本文献已被 CNKI 万方数据 SpringerLink 等数据库收录! |