Stable reliability analysis of truss structure affixed piezoelectric patches on the surface

Hai An; Wei-guang An; Dan Zhang

doi:10.1117/12.780083

1 November 2007 Stable reliability analysis of truss structure affixed piezoelectric patches on the surface

Hai An, Wei-guang An, Dan Zhang

Proceedings Volume 6423, International Conference on Smart Materials and Nanotechnology in Engineering; 64233G (2007) https://doi.org/10.1117/12.780083
Event: International Conference on Smart Materials and Nanotechnology in Engineering, 2007, Harbin, China

Abstract

On the basis of the finite element mode of piezoelectric truss structure affixed piezoelectric patches on the surface, stable secular equation is proposed. Taking into consideration the mechanical-electric coupling effect under electric loads and mechanical loads, considering physical parameters and load coefficient of bar as stochastic variables , the formula of safety margins of piezoelectric truss instability is proposed,and the method of calculating the critical load coefficient derivative to variables is given. On the base of above research, stochastic finite element method is adopted to analyze the piezoelectric truss stable reliability,and the method of analyzing stable reliability index is given in different conditions.In the end,a example demonstrates validity of the method that is proposed in this paper. The analysis results shows that the reliability index of the piezoelectric trusses system can be improved by changing adscititious voltage and piezoelectric patches layout.The method provides references to analyze the stabile reliability for truss contained piezoelectric materials in the case of practical engineering.

Citation Download Citation

Hai An, Wei-guang An, and Dan Zhang "Stable reliability analysis of truss structure affixed piezoelectric patches on the surface", Proc. SPIE 6423, International Conference on Smart Materials and Nanotechnology in Engineering, 64233G (1 November 2007); https://doi.org/10.1117/12.780083

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