2013, 5(5): 50-56.
基于有限元模型和不完备模态测试信息的结构损伤识别方法研究
| 1. | 江苏建筑职业技术学院建筑工程技术学院，徐州 221116 |
| 2. | 石家庄经济学院勘查技术学院，石家庄 050031 |
The Study on Structural Damage Identification based on the Finite Element Model and Incomplete Model Measurements
| 1. | School of Construction Engineering, Jiangsu Jianzhu Institute, Xuzhou 221116, China |
| 2. | School of Prospecting Techniques, Shijiazhuang University of Economics, Shijiazhuang 050031, China |
引用本文:
孙武, 袁颖. 基于有限元模型和不完备模态测试信息的结构损伤识别方法研究[J]. 土木建筑工程信息技术,
2013, 5(5): 50-56.
Citation:
Sun Wu, Yuan Ying. The Study on Structural Damage Identification based on the Finite Element Model and Incomplete Model Measurements[J]. Journal of Information Technologyin Civil Engineering and Architecture,
2013, 5(5): 50-56.
摘要:本文在有限元模型的基础上，建立了一种基于不完备模态测试信息的损伤识别方法。采用Levenberg-Marquardt非线性最小二乘算法对建立的杆系结构损伤识别方程进行求解，并通过一拱桥的数值计算结果表明，该方法可以同时进行结构的损伤定位和定量研究，在测试数据不完备及一定数据噪声水平条件下，本文的方法仍有较好的损伤识别能力。
Abstract: Based on the finite element model and incomplete measured model data, a damage identif ication method is presented.The damage identification procedure to the menber structures are sovled by using the Levenberg-Marquardt nonlinear least squares procedure.The results of the calculation of the arch bridge indicate that the localization and quant ification of the structural damage can be determined simultaneously and the procedure presented shows good performance even in the case of incomplete measurements and limited noise.
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