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根据实际超声换能系统的振动测试,提出了热超声键合换能系统动力学特性的非线性检验方法,利用基于相空间重构的替代数据法,通过对换能杆末端的实测数据进行正确替代,并用非线性动力学的理论来检验其是否具有非线性.通过实验对超声换能杆末端轴向、俯仰、横向的振动时间序列的关联维数进行了准确的计算,从而清晰地描述了上述三个方向的动力学特性.所提出的方法有利于更好地认识超声键合换能系统,为建立更加合理的非线性动力学模型奠定良好的理论基础,有很好的应用价值.
According to the vibration test of actual ultrasonic transducer system, a nonlinear test method of dynamic characteristics of thermo-ultrasonic bonding transducer system is proposed. By using the alternative data method based on phase space reconstruction, the measured data at the end of the transducer rod is correct And the non-linearity is verified by the theory of nonlinear dynamics.According to the accurate calculation of the correlation dimension of the vibration time series of the axial end, the pitch end and the lateral end of the ultrasonic transducer rod end by experiments, The above three directions of the dynamic characteristics of the proposed method is conducive to a better understanding of ultrasonic bonding energy conversion system, in order to establish a more reasonable nonlinear dynamics model to lay a good theoretical basis, has good application value.