Failure Mode Analysis of Estuary Gate and Online Monitoring Research of Support Hinge
Sluice is an important part of water conservancy infrastructure,which plays a vital role in flood holding,drainage and navigation.Once the sluice fails,it will cause immeasurable consequences,and the health status of its key parts directly affects the safe operation of sluice.It is of great signifi-cance to realize real-time online monitoring of the key parts of sluice.This paper takes Sanchahe estu-ary gate as the research object,analyzes the failure mode of the sluice gate,and determines the on-line monitoring of support hinge.To reasonably design the online monitoring scheme of the support hinge,the finite element analysis of the support hinge is carried out first,and the rationality of the fi-nite element analysis is verified by comparing the analysis results of the whole and part of the sup-port hinge,which can provide a certain basis for online monitoring;Secondly,based on the actual situa-tion of the support hinge and finite element analysis,the on-line monitoring scheme is determined,in-cluding the monitoring position and data transmission,to realize online stress monitoring of the support hinge.In addition,through numerical simulation,it is shown that the stress change between each point in the support hinge and the maximum stress point is linear.By using the linear relationship and the stress information of the known monitoring points,the stress value of the maximum stress point of the support hinge can be preliminarily estimated.The proposed research can better manage the daily health of the support hinge and ensure the smooth operation of the sluice gate.
sluicefailure modesupport hingefinite element analysisonline monitoring
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