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采用格型抽头滤波器来实现柴油机主动隔振,通过梯度自适应格型算法对格型结构的反射系数及抽头部分的衰减系数进行计算更新。误差通道采用离线辨识方法,针对双层隔振系统进行了单频及多频振动信号的主动隔振仿真研究。仿真结果表明该算法对单频和多频振动的主动控制都有较好的控制效果。
The lattice tap filter is used to realize the active vibration isolation of the diesel engine. The gradient adaptive lattice algorithm is used to calculate and update the reflection coefficient of the lattice structure and the attenuation coefficient of the tap part. The error channel adopts the offline identification method to simulate the active vibration isolation of single-frequency and multi-frequency vibration signals for double-layer vibration isolation system. Simulation results show that this algorithm has good control effect on the active control of single frequency and multi-frequency vibration.