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介绍了分形理论和它在基于桥梁结构动力响应的损伤识别方法中的研究,应用Matlab/Simulink仿真将损伤前后的位移加速度图像对比分析,并将得到的数值结果利用分形盒维数进行处理,从而了解Simulink在损伤识别中的可行性及简支梁结构损伤前后分形维数的变化规律。
Fractal theory and its application in damage identification based on dynamic response of bridge structure are introduced. Comparing the image of displacement acceleration before and after damage using Matlab / Simulink simulation, the numerical results are processed by the fractal box dimension Understand the feasibility of Simulink in damage identification and the change rule of fractal dimension before and after damage of simply supported beam.