Volume 5 Issue 3
Sep.  2012
Turn off MathJax
Article Contents
Article Navigation >  Water Science and Engineering  > 2012  >  5(3): 329-339
Ji-jian LIAN, Long-jun HE, Hai-jun WANG. 2012: Optimal sensor placement in hydropower house based on improved triaxial effective independence method. Water Science and Engineering, 5(3): 329-339. doi: 10.3882/j.issn.1674-2370.2012.03.008
Citation: Ji-jian LIAN, Long-jun HE, Hai-jun WANG. 2012: Optimal sensor placement in hydropower house based on improved triaxial effective independence method. Water Science and Engineering, 5(3): 329-339. doi: 10.3882/j.issn.1674-2370.2012.03.008
shu

Optimal sensor placement in hydropower house based on improved triaxial effective independence method

doi: 10.3882/j.issn.1674-2370.2012.03.008

  • State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, P. R. China

Funds:  This work was supported by the National Natural Science Foundation of China (Grant No. 50909072), the New Teachers’ Fund for Doctor Station, the Ministry of Education of China (Grant No. 20090032120082), and the Communication Research Item for the West Area, the Ministry of Communications of China (Grant No. 2009328000084).
More Information
  • Corresponding author: Hai-jun WANG
  • Received Date: 2011-08-26
  • Rev Recd Date: 2011-12-06
    Abstract
  • The capacity and size of hydro-generator units are increasing with the rapid development of hydroelectric enterprises, and the vibration of the powerhouse structure has increasingly become a major problem. Field testing is an important method for research on dynamic identification and vibration mechanisms. Research on optimal sensor placement has become a very important topic due to the need to obtain effective testing information from limited test resources. To overcome inadequacies of the present methods, this paper puts forward the triaxial effective independence driving-point residue (EfI3-DPR3) method for optimal sensor placement. The EfI3-DPR3 method can incorporate both the maximum triaxial modal kinetic energy and linear independence of the triaxial target modes at the selected nodes. It was applied to the optimal placement of triaxial sensors for vibration testing in a hydropower house, and satisfactory results were obtained. This method can provide some guidance for optimal placement of triaxial sensors of underground powerhouses.

     

    • FullText(HTML)
  • loading
    • References(13)
  • Carne, T. G., and Dohrmann, C. R. 1995. A modal test design strategy for modal correlation. Proceedings of the 13th International Modal Analysis Conference, 927-933. Bethel: SPIE-The International Society for Optical Engineering.
    Chung, Y. T., and Moore, J. D. 1993. On-orbit sensor placement and system identification of space station with limited instrumentations. Proceedings of the 11th International Modal Analysis Conference, 41-46. Bethel: Society for Experimental Mechanics.
    Heo, G., Wang, M. L., and Satpathi, D. 1997. Optimal transducer placement for health monitoring of long span bridge. Soil Dynamics and Earthquake Engineering, 16(7-8), 495-502. [doi:10.1016/S0267-7261 (97)00010-9]
    Imamovic, N. 1998. Validation of Large Structural Dynamics Models Using Modal Test Data. Ph. D. Dissertation. London: Imperial College.
    Kammer, D. C. 1991. Sensor placement for on-orbit modal identification and correlation of large space structures. Journal of Guidance, Control, and Dynamics, 14(2), 251-259.
    Kammer, D. C., and Tinker, M. L. 2004. Optimal placement of triaxial accelerometers for modal vibration tests. Journal of Mechanical Systems and Signal Processing, 18(1), 29-41. [doi:10.1016/S0888- 3270(03)00017-7]
    Lian, J. J., Wang, H. J., and Qin, L. 2007. Hydropower House Structure Study. Beijing: China Water Power Press. (in Chinese)
    Ma, Z. Y., Zhang, K. H., and Chen, J. 2006. Application of optimal sensor placement algorithms for vibration characteristics analysis of power house in hydropower station. Journal of Dalian University of Technology, 46(2), 262-265. (in Chinese)
    Schedlinski, C., and Link, M. 1996. An approach to optimal pick-up and exciter placement. Proceedings of 14th International Modal Analysis Conference, 376-382. Bethel: Society for Experimental Mechanics.
    Swann, C., and Chattopadhyay, A. 2006. Optimization of piezoelectric sensor location for delamination detection in composite laminates. Engineering Optimization, 38(5), 511-528. [doi:10.1080/ 03052150600557841]
    Worden, K., and Burrows, A. P. 2001. Optimal sensor placement for fault detection. Engineering Structures, 23(8), 885-901. [doi: 10.1016/S0141-0296(00)00118-8]
    Wu, Z. Y., Dai, F. J., and Yang, H. F. 2006. Research on optimal sensor placement methods for structure health monitoring. Journal of Zhengzhou University (Engineering Science), 27(4), 92-96. (in Chinese)
    Zhang, Z. Y. 2003. Master MATLAB 6.5. Beijing: Beihang University Press. (in Chinese)
    • Relative Articles
    • Supplements(0)
    • Cited By
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Get Citation
    PDF
    XML

    Article Metrics

    Article views (1951) PDF downloads(2975) Cited by()
    Proportional views
    Related

    Copyright © 2009 Editorial office of Water Science and Engineering 苏ICP备12023610号-1

    Supported by: Beijing Renhe Information Technology Co. Ltd   support: info@rhhz.net

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return