超高压强度试验中系统失效应急控制策略研究

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Research on emergency control strategies for system failure in ultra-high pressure strength testing

PANG Baocai* （National KeyLaboratory of Strength and Structural Integrity，Aircraft Strength Research Institute of China， Xi'an 710065）

Abstract：To addresses the systemsafety protectionrequirements inultra-high pressre strength testing by investigating failurecontingencyanalysisandcoordinatedemergencycontrolstrategies.Thisstudyestablishedanemergencycollborative response mechanism toreveal the interaction mechanismsamong typicalfailure modes—including sealing failure，pressure oscilations，and structuraldeformationunder extreme loadingconditions.Itproposedafailure warning methodbasedon multi-sourceinformation fusion，which integratesdynamic pressure monitoring，acousticemission featurerecognition，and systemstateperceptiontechnolgies toachievearlyfaultdetection.Aditionalyanddevelopedatransientpresurergulationtechnologyusing dynamicinversecompensation，along withamulti-modal information fusion-based fault diagnosis strategyandanovelintelligent pressrerelief actuator.Experimentalvalidationdemonstratesthatthe proposedsystemeffectivelydelaysfailure propagation，significantlyreduces pressure fluctuation amplitudes，and has ben successullapplied to aireraft landinggearstructuraldurabilitytesting.Thisresearchholdssignificantengineering valueforenhancing thereliability of critical equipment testing.

Keywords：ultra-high pressure strength testing;system failure;collaborative response mechanism;hierarchical emergency control

1引言

随着航空装备向着更高可靠性方向发展，飞行器关键结构件的超高压强度试验已成为验证其极限承载能力的重要环节[1]。（剩余5491字）