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给出了基于变量投影重要性的质量功能展开关系矩阵计算方法。利用此方法,可以较好地解决工程特性之间多重相关性,也可用于消减关系矩阵维数。在某新型飞机经济性的关系矩阵构造的实例中,以维修成本为用户需求,15种基本参数为工程特性建立质量屋。计算结果与实际经验相符合,为工程实用提供了有价值的参考。
The calculation method of the relation matrix of mass function expansion based on the importance of variable projection is given. With this method, the multiple correlation between engineering characteristics can be well solved, and it can also be used to reduce the dimension of relation matrix. In an example of the construction of the relation matrix of a new type of aircraft economy, the maintenance cost is the user’s requirement, and the 15 basic parameters are the quality housing for the engineering characteristics. The calculation results are in line with the actual experience, which provides valuable reference for engineering practice.