The mathematical physical model is established depending on the conventional laser heat treatment technology, the partial differential equation of heat current propagation is derived.
本文以常规的激光热处理工艺为基础，建立相应的数学物理模型，导出热流传导的偏微分方程。
The impulse response method is adopted to identify the modal parameters, and the physical parameters are estimated from the characteristic equation of the mathematical model built.
本文采用了单位脉冲响应函数法识别模态参数，由所建数学模型的特征方程识别结合部的物理参数。
The mathematical adjoint equation. not the physical adjoint equation, is required for nodal method, but it is rather too difficult to solve the former.
对于节块法，需要的是数学共轭方程，而不是物理共轭方程，但数学共轭方程求解比较困难。
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