【摘要】 采用机械阻抗方法分析了超声加工系统中出现的局部共振现象 ,通过对变幅杆和工具杆组合系统的力学模型的分析计算 ,得出局部共振是超声加工系统中的某些振动频率和工具杆固有频率相接近时的现象 ,此时整个系统仍是全谐振的。更多还原

【Abstract】 The local resonance phenomenon in ultrasonic processing system is analyzed by the mechanical impedance method. With analysis of the mechanical modal system of horn and tool, it is found that local resonance happens when the frequency of the ultrasonic processing system is close to the national frequency of the tool, and thus the whole system is resonant.更多还原