Modeling and Simulation of Nonlinear Dynamic System Based on Qualitative Phase Portrait
In this paper, we propose a new method based on qualitative simulation to construct phase portrait for nonlinear dynamic system. We firstly improve the QSIM algorithm, which is the most widely used in qualitative simulation, then we put forward a new simulation algorithm based on algebraic constraint for nonlinear dynamic system. On this basis, we use the phase portrait construction of two-dimensional fork system and non-singular three-dimensional system as example analysis. The experimental results show that this method is entirely feasible, and it is able to capture all qualitative distinguishable system behavior, which can well make up for the defects caused by the tradition methods based on numerical integration phase portrait. Therefore, the proposed method has its irreplaceable value.
Qualitative simulation phase portrait nonlinear dynamic system
Chenxi SHAO Zhenzhong SHAO Xiangdong HU
College of Computer Science and Technology, University of Science and Technology of China, Hefei, Ch Jianghua Automobile Co. Ltd. Hefei, China College of Computer Science and Technology, University of Science and Technology of China, Hefei, Ch
国内会议
三亚
英文
979-983
2012-08-11（万方平台首次上网日期，不代表论文的发表时间）