基于失效机理的UUV结构贮存寿命评价

Evaluation of Structural Storage Life of UUV Based on Failure Mechanism

摘要:

针对贮存环境下无人潜航器(UUV)结构的贮存寿命评估问题，以某型无人潜航器主要耐压结构件材料 5A06 为例，分析无人潜航器耐压壳体结构实际使用环境因素和贮存寿命期间腐蚀失效机理，提出了一种评价无人潜航器壳体贮存寿命的加速寿命试验和评价方法。结果表明：该方法考虑了该类型无人潜航器环境应力对贮存寿命的影响，采用腐蚀加速寿命试验的评价方法可行，具有准确度和可信度高的特点。

Abstract:

In view of the storage life evaluation of Unmanned Underwater Vehicle(UUV)structure under storage environment，the practical environment factors and the corrosion failure mechanism during storage life period of UUV pressure hull structure are analyzed by taking the main pressure structural component material 5A06 of an UUV as an example. An accelerated life test and evaluation method for evaluating the storage life of UUV hull are proposed. The results show that the method takes into account the impact of environmental stress on the storage life of this type of unmanned underwater vehicle. The evaluation method for corrosion accelerated life test is feasible and it has the characteristics of high accuracy and reliability.