采用动力学方法进行结构损伤诊断和参数识别时，结构的边界条件对其动力性能有较大的影响。

The dynamic behavior of a structure is greatly influenced by its boundary conditions, if dynamic method is applied to structural damage identification and parameter identification.

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详细介绍了有限元模型的建立，材料参数、边界条件及载荷的定义。

The construction of FEM model, material parameters, boundary conditions and loading definition are introduced in details.

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模拟结果同时表明，通过应用CFD软件并设定好相关参数及边界条件对室内气流组织进行模拟研究，可用来指导通风设计工作。

Besides, it indicate that it's feasible to utilize CFD software with suitable coefficient and boundary conditions to simulate the airflow organization to instruct the design of ventilation.

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