...算机毕业论文网 关键词：汽车荷载；洪水频率；桥长；主梁配筋；简支梁桥 [gap=1953]Key words: auto-load ; frequency of flood ; the length of the bridge ; the compound bar of girders ; simple bridge ..
A nonparametric kernel estimation of the floodfrequency with historic information is presented in this paper. The limitation in assuming a distribution type is overcome.
本文提出了在有历史洪水情况下洪水频率的非参数核估计方法，克服了现行方法假定分布型式的局限。
2
A new method of least square is raised in curve fitting offloodfrequency calculating and its specific properties are analysed.
提出了在洪水频率计算时适线法中最小二乘方的一种新的求解方法，并对其特性进行分析。
3
Floodfrequency (return period) is referring to recurrence probability offlood in certain period.