Aircraft vulnerability modeling and computation methods based on product structure and CATIA

 Survivability strengthening/vulnerability reduction designs have become one of the most important design disciplines of military aircraft now. Due to progressiveness and complexity of modern combat aircraft, the existing vulnerability modeling and computation methods cannot meet the current engineering application requirements. Therefore, a vulnerability modeling and computation method based on product structure andCATIAis proposed in sufficient consideration of the design characteristics of modern combat aircraft. This method directly constructs the aircraft vulnerabilitymodel by CATIAor the digitalmodel database, andmanages all the product components of the vulnerabilitymodel via aircraft product structure.Using CAAsecond development, the detailed operations and computationmethods of vulnerability analysis are integrated into CATIA software environment. Comprehensive assessment data and visual kill probability Iso-contours can also be presented, which meet the vulnerability analysis requirements ofmodern combat aircraft effectively.The intact vulnerabilitymodel of one hypothetical aircraft is constructed, and the effects of redundant technology to the aircraft vulnerability are assessed, which validate the engineering practicality of the method.