摘要
引入影响系数矩阵的方法,修正发动机稳态模型,使修正后的模型能更好地与实际发动机相符合。仿真结果表明,模型修正后精度有很大提高,并且利用影响系数矩阵方法迭代修正的模型精度优于一次修正的结果。进一步指出模型修正精度与所选的待修正部件参数与目标性能参数的敏感性密切相关。
Aiming at solving this problem,influence coefficient matrix was introduced and stable status mod-el was modified,so that the model modified can correspond to factual engine. Simulated result indicates that the precision of modified model is enhanced greatly,and the precision of the model iteratively modified by influence coefficient matrix is superior to that after one single modification. And it is shown that precision of modified model correlates to the sensitivity of selected component parameter to the objective performance pa-rameter.
出处
《沈阳航空航天大学学报》
2014年第2期32-36,共5页
Journal of Shenyang Aerospace University
关键词
模型修正
影响系数矩阵
敏感性
modification of model
influence coefficient matrix
sensitivity
