Preservation and Utilization of Finite Element Models of USAF Aircraft Structures

摘要

The problem addressed by this report is that the Air Force is not getting fullvalue for the resources expended in the development of finite element models of USAF aircraft structures, both directly and by contractors. Models developed by airframe contractors are usually not made available to the Air Force. Models that are available are often inadequately documented or verified, or their existence may be unknown to those who need them. The problem was assessed by a survey of Air Force organizations and was attacked in three ways. First, software called FEM-X was developed for storage and retrieval of finite element model data along with descriptive information about the data. The software could be used by an Air Force Finite Element Model Center. A proposal for establishment of this Center is the second aspect of modification, and distribution of aircraft models. The third subject addressed by the report is a Mil Standard that is proposed for delivery of finite element models by Air Force contractors.