A new cutting dynamic model and its transferfunction as well as the formula of the viscous coefficient are established in the overstress constitutive equation.
运用材料的粘塑性本构方程建立了新的切削动力学模型及其传递函数，并给出了材料粘性系数表达式。
2
In general, the dynamic math model of a thermal process is an approximate transferfunction obtained from step response curve which is figured through field experiment.
热工过程的动态数学模型通常通过现场试验作出它的阶跃响应曲线，然后从阶跃响应曲线得出近似传递函数。
3
A transferfunction for the whole system is obtained and the system dynamic behaviour is analysed.