By combining equivalent linearization method with harmonic balancing technique, the approximate analytic response was obtained.
将等效线性化法与谐波平衡法相结合，求出了系统的近似解析响应。
This exact linearization is different from the approximate linearization which is often used in engineering, which is no error in a large enough area.
这种精确线性化不同于以往工程技术中常用的近似线性化方法，它在足够大的“区域”中是没有误差的。
By combining the linearization of the governing equation with the method of harmonic balance, we have established analytical approximate formulas for the period and the periodic solution.
将控制方程的线性化与调和平衡法组合起来，建立周期及周期解的解析逼近公式。
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