中文摘要：

在半主动压电分流阻尼技术中,采用不同形式的负电容分支电路时,系统具有不同的阻尼特性。将负电容半主动分支网络分为串联电容电阻支路和并联电容电阻支路,采用统一的频域特性方程。比较分析表明：串联方式中低频阻尼性能较好,而并联方式适合于高频使用,串/并联方式的结合使用可获得较宽频带的阻尼性能。同时还获得了串并联结构的优化参数。

英文摘要：

In semi-active piezoelectric shunted damping technology, system damping depends on the forms of the negative capacitance shunted circuits. Semi-active shunted circuits with negative capacitance could be divided into series negative-capacitance/resistance and parallel negative-capacitance/resistance, and the same characteristic equation in frequency region was employed. The damping performance of different shunted configurations was analyzed and compared. It was found that the series form had better damping performance at low and middle frequency, while parallel form was better at high frequency. Combination of the two forms could provides better damping performance in a quite broad frequencyband. Optimal parameters of different forms of the circuits were obtained.