这个问题的主要困难是如何准确地描述作用在塔壳面上的脉动压力分布。
The major difficulty is how to describe exactly the distribution of fluctuating pressure on the tower surface.
这样就可以通过对脉动压力分布进行面积加权积分，得到脉动气动力的时间历程。
Therefore the time series of aerodynamic forces can be obtained by area-weighted integral of fluctuating pressure distributions.
窄缝消能工边墙的脉动压力振幅概率分布符合正态概率曲线。
The probability distribution curve of the fluctuating pressure amplitude on the side wall of narrow-gap energy dissipater coincides with the normal probability curve.
应用推荐