梁结构损伤识别模拟方法研究

Study of simulation method for damage identification of beam structure

在梁结构损伤识别中,有多种方法可以模拟结构的局部损伤,如折减单元截面惯性矩、降低单元的弹性模量、减小截面的厚度等。在各种模拟方法下对结构的动力性能进行了分析研究,提出了采用增加单元质量的方法来模拟结构的损伤,并通过H型钢梁进行模拟,对比验证了这几种方法的优劣性。

At present, there is a wide range of simulation methods for local injury of the beam-structure, such as reducing cross-section moment of inertia, the unit modulus, the height of cross-section and so on. Through making a detailed discussion for structural dynamic properties analysis, this article introduces a method by in-creasing quality of the element to simulate structural damage, and compares advantages and disadvantages of these methods with H steel beam simulation.