Optimal sensor placement for large space structuresbased on distance coefficient-effective independence method

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Journal of Vibration and Shock ›› 2013, Vol. 32 ›› Issue (16) : 13-18.

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Optimal sensor placement for large space structuresbased on distance coefficient-effective independence method

HE Long-jun, LIAN Ji-jian, MA Bin, WANG Hai-jun

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Abstract

The distance coefficient-effective independence method, which applies distance coefficient to weigh the Fisher information matrix, is proposed to solve the information redundancy of effective independence method for optimal sensor placement in large space structures. Further, the proposed technique is applied to a high arch dam, and the obtained scheme is compared with the schemes of three existing methods systematically. The distance coefficient-effective independence method can avoid the information redundancy effectively and ensure the accuracy of modal identification for the optimal sensor placement of large space structures with refined mesh. Therefore, it is an ideal method for optimal sensor placement of large space structures.

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large space structure / optimal sensor placement / distance coefficient-effective independence method / information redundancy

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HE Long-jun;LIAN Ji-jian;MA Bin;WANG Hai-jun. Optimal sensor placement for large space structuresbased on distance coefficient-effective independence method[J]. Journal of Vibration and Shock, 2013, 32(16): 13-18