Reliability Analysis of Damaged Piezoelectric Structure

摘要：

According to the piezoelectric material damage theory and the fracture criterion based ondamage theory,which has been established by Yang et al,reliability analysis of a damagedpiezoelectric truss is carried out.The expression of safety margins of the piezoelectric beam has beenproposed,with the mechanical damage extension force,electric damage extension force,InertiaMoment of cross-section and nodal loads as stochastic variables.Then the truss is dealt withrandomly,and the corresponding reliability index is got according to the Taylor stochastic finiteelement.The result indicates that the reliability of the system is influenced greatly when the positiveand negative electric fields have been applied on the structure,which provides the basis to control thereliability of structural system.Finally,through a calculation example,the quantification results of thereliability index are compared under the conditions of positive electric field,negative electric field orno electric field.

关键词： Piezoelectric frame Damage extension force Reliability Stochastic finite element

作者: D.Zhang W.G.An X.S.Lu

作者单位: Department of Aerospace engineering,Harbin Engineering University,Harbin 150001,China;Department of Department of Aerospace engineering,Harbin Engineering University,Harbin 150001,China Project Division,Daqing Electric Power Bureau,Daqing,163454,Heilongjiang,China

会议类型: 国际会议

会议名称: 2008 International Conference on Advances in Product Development and Reliability(2008年产品开发与可靠性进展国际会议)

会议地点: 成都

会议语种:英文

在线出版日期: 2008-08-04（万方平台首次上网日期，不代表论文的发表时间）