装备结构在正常服役使用期间发生故障后是否便于维修并恢复功能状态的特性常常可用维修性来进行表征分析。然而，装备结构在服役使用过程中总是不可避免地要发生一些意外损伤或者非常规损伤，比如事故损伤、战斗损伤等。这时，结构是否便于修复使其状态得到及时恢复的固有特性可用修复性（或恢复性）来进行描述。在阐述结构修复性的基本概念的基础上，结合结构使用完整性/军用装备结构作战完整性的概念与控制方法，阐述了结构修复性的作用意义。提出采用修复度Rc(t)、意外损伤平均恢复时间MTTRC、平均恢复费用MRCC及平均恢复工时MWTTRC等参数来表征结构修复性，并初步探讨了结构修复性的基本评估和设计方法。最后，给出了一个车辆装备意外损坏时的结构修复性评估案例和一个简单的后掠单块式机翼结构修复性设计的简要示例。结构修复性评估与设计方法对于其他结构如房屋、桥梁、其它基础设施结构等是同样适用的。
Usually the maintenance is used to characterize whether it’s easy to repair when the equipment structures have some failures during the normal service period. But, it’s hardly for equipment structures to avoid the accidental and unexpected damage in the service, such as accident damage, battle damage etc. And then the recoverability can be used to express whether it’s easy to repair and recover when structures suffer some accidental and unexpected damage. After expounding the basic concept of structural recoverability, the significance of structural recoverability is discussed as well as the concept and control methods of structural operation integrity(SOI). Then, parameter Rc(t)（Recovery Degree）, MTTRC(Mean Time to Recovery), MRCC（Mean Recovery Cost） and MWTTRC（Mean Work Time to Recovery）are proposed to characterize and measure structural recoverability . Furthermore, the normal assessment and design methods of structural recoverability are put forward primarily. Finally, an brief exam-ple of recoverability evaluation for accidentally damaged vehicle front bumper structures with three models is shown by means of MTTRC and MRCC analyses, and followed by the design discussion on a monolithic backswept aircraft wing structure constructed by ribs, stringers and skins. It is also stated here that the concept, measurement, evalua-tion and design of recoverability are suitable for other structures, such as building structures, bridge structures and other infrastructure structures, etc.
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