The resonant frequency equation and the amplitude magnificationcoefficient, with resistance load, are calculated;
得到了阻性负载时，变幅杆频率方程与放大系数的计算式；
2
The seismic response indicates that the harder the soil is, the larger the magnificationcoefficient of the acceleration response is.
的地震响应表明较硬的土壤是，较大的放大系数的加速度响应。
3
Based on mechanic equivalent circuit of the longitudinal ultrasonic horn, the resonance frequency and the amplitude magnificationcoefficient of three kinds of loaded horns are studied.