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用正规型方法得出系统运动的一般方程。考虑到系统结构和运动的特点,提出了周期运动的条件,进而利用这些条件求出了与干扰力周期相同的解析周期解。研究了周期解的稳定问题。
The normal equation is used to derive the general equation of system motion. Taking into account the characteristics of the system structure and movement, the conditions of periodic motion are proposed, and then the analytical periodic solutions with the same disturbance period are obtained by using these conditions. The stability of periodic solutions is studied.