Detecting and correcting the index of DAE by the combinatorial relaxation algorithm
The mathematical modeling and simulation based on the Modelica language usually gets a high-index differential-algebraic equation (DAE) system. The structural index reduction algorithms can serve as a fast method to reduce such high-indexed issues. In order to solve the failure of the structural index reduction algorithms in some cases, the combinatorial 1relaxation algorithm is analyzed and studied. Finally, the result of an example shows the combinatorial relaxation algorithm is an effective way to improve the stability of the index reduction algorithms based on the structural index of DAE.
Modelica differential-algebraic equation index reduction combinatorial relaxation algorithm
Yongxin Yan Xiaolei Zhang Xuesong Wu Jianwen Cao
International School Beijing University of Posts and Telecommunications Beijing, China Laboratory of Parallel Software and ComputationalScience,the Institute of Software,Chinese Academy o Laboratory of Parallel Software and Computational Science, the Institute of Software, Chinese Academ
国际会议
无锡
英文
391-395
2011-10-14(万方平台首次上网日期,不代表论文的发表时间)