Affiliation:
1. Central South University of Forestry and Technology
Abstract
The damage analysis based on the modal parameters usually need to compare the test data with the computed data by theoretical analysis. In bridge structure damage analysis, it is impossible that the sensors are set at every node. So the test data need to be extended to every node by using interpolation technology. In the paper, three interpolation methods, cubic interpolation method, cubic spline interpolation method and sinc interpolation method, are introduced. Their applications in bridge structure damage analysis are discussed. The experiment results show that the best interpolation method is cubic spline interpolation method. Using the data processed by interpolation technology can well obtain the damage location of bridge.
Publisher
Trans Tech Publications, Ltd.
Reference6 articles.
1. Philippe Thévenaz, Thierry Blu, Michael Unser. Interpolation Revisited. IEEE Transactions on Medical Imaging, 2000, 19 (7), pp.739-758.
2. L. P. Yaroslavsky. Efficient Algorithm for Discrete Sinc Interpolation. Applied Optics, 1997, 36 (2), pp.460-463.
3. He Bin, Zhang Zhimin. Research and Realization of Sinc Interpolation Algorithm Based on FPGA. Chinese Journal of Electron Devices, 2010, 33 (3), pp.340-3433.
4. Paul Bourke. Information on http: /local. wasp. uwa. edu. au/~pbourke/miscellaneous/ (1999).
5. Ding Ke. Damage Analysis of the Bridge Structure Based on the Modal Parameters. Advanced Materials Research, 2011, Vols. 255-260, pp.1034-1038.