HBM实行快速傅里叶变换，这是谐波平衡法中的一个重要的环节-Harmonic Balance Method is a very useful method in solving rotor dynamics, and fast fourier transform is an important part in it

空间风场模拟程序，采用谐波平衡法模拟大气边界层-code for simulation of wind field of boundary layer.

运用增量谐波平衡法求解二自由度非线性微分方程(Solving nonlinear differential equation with two degrees of freedom by incremental harmonic balance method)