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地震可控震源记录中震源产生的能量包括:超高频谐振,次生谐振,超声波,超声次生谐波,以及可能存在的不规则振荡特性。用硬弹簧形式的Duffjng方程模拟了非线性特性。模拟结果表明,定性特征相似的谐波谐振结构是完成大量数学描述的基础,无需知道实际地层参数,我们便可分析定性全局系统的特性。相对于基本扫描频率而言,随营驱动力的加大和
The energy produced by the source in the seismic vibrator records includes ultrahigh frequency resonance, secondary resonance, ultrasonic wave, ultrasonic secondary harmonic wave, and possible irregular oscillation characteristics. The nonlinear behavior is modeled by the Duffjng equation in the form of a hard spring. The simulation results show that the harmonic resonance structure with similar qualitative features is the basis for a large number of mathematical descriptions. Without knowing the actual formation parameters, we can analyze the characteristics of a qualitative global system. Relative to the basic scanning frequency, with the driving force to increase and camp