A new function solving method based on function family is given by mapping the functional tree with the performance function.
当前较大规模的功能树组合求解方法存在解空间庞大、冲突定位困难的问题，对此提出了一种基于功能集族的功能求解方法。
One method was getting the maximum and the minimum of the structural performance function by optimization, and then calculating the ratio of mean-value to deviation of the performance function.
一种方法是先优化得到结构功能函数的最大和最小值，再计算功能函数均值和离差的比值；
First, the performance function is analyzed by the non-probabilistic set-based reliability model, and then the reliability of all regions in the normalized interval variable space is summed up.
该模型首先通过将功能函数进行非概率可靠性分析，然后将标准化区间变量空间所有区域的可靠度进行求和计算，从而给出结构的可靠度。
The truss arch structure is a three-dimensional higher statically indeterminate structure, and no definite expression of the performance function can be given for its unbelievable complexity.
桁架拱结构是一个高次超静定的复杂三维结构，构件的功能函数没有明确表达式。
The performance function is constructed, and the performance of civil servants can be compared. Empirical analysis is also made in this paper.
然后构造出绩效函数，用于比较绩效的大小，并进行了相关的实证分析。
The performance function is constructed, and the performance of civil servants can be compared. Empirical analysis is also made in this paper.
然后构造出绩效函数，用于比较绩效的大小，并进行了相关的实证分析。
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