Enabling Technologies for Unified Life-Cycle Engineering of Structural Components (1991) / Chapter Skim
Currently Skimming:
APPENDIX B: CASE STUDY OF A COMPOSITE AIRFRAME STRUCTURE
APPENDIX B: CASE STUDY OF A COMPOSITE AIRFRAME STRUCTURE
Pages 81-88
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 81... ...
The subject stabilizer for the future study was a totally co-cured composite structure without metal splice plates. By comparing the present and future or proposed methodologies for life-cycle engineering, needs for each phase of product development (conceptual design, prototype, full-scale development, production, and operation)
|
From page 82... ...
LE ASSY ~ COMPOS ITE T I P ASSY FIGURE B-1 Plan view of the F-15 horizontal stabilizer. \: TE ASSY / ~ JOQQUE BOX The materials for the composite horizontal stabilizer were assessed for material properties and history (Figure B-2~.
|
From page 83... ...
The physical development fixture is reviewed during various stages of completion by numerous "experts." Paper feedback of problems from engineering, manufacturing, quality assurance, and product support are sent to design engineering for consideration of design changes for a completed design. During full-scale development, additional problems are found as the integration of structure and systems occurs.
|
From page 84... ...
An integrated data base for engineering, manufacturing, quality assurance, and product support will be required. This will allow data to be shared rather than duplicated or lost altogether (Figure B-4~.
|
From page 85... ...
The use of a common electronic data base by the whole design team (Figure B-S) will provide many new approaches for users of the engineering design definition, such as electronic quality assurance of parts prior to fabrication and assembly.
|
From page 86... ...
Finally, shared information will be the common thread for an intelligent system that recognizes and flags recurring problems for upstream correction by use of imbedded rules, artificial intelligence systems, integrated data base for information flow, available computerized inspection data concerning initial part quality, and availability to user of analytical computer models, for overload, damage and repair support. Having examined the present design environment and gazed into our crystal ball for a look at the idealized future environment, a set of unified life cycle engineering (ULCE)
|
From page 87... ...
12. Use integrated data base to flag areas of opportunity during full-scale development, including robotics applications, numeric control and hybrid numeric control applications, concurring to reduce parts and fasteners, injection molding parts to minimize weight, reduce cost, and minimize galvanic corrosion, and forging, pressing, and casting applications.
|
From page 88... ...
Supporting Case Study Needs and Concerns: 1, 2, 3, 5, 6, 12, 14, 15, 19, 20 Critical Issue 2: Advanced analytical modeling and simulation methods to predict actual component manufacture, operation, and logistics do not exist to the degree required to preclude the need for physical prototypes and mock-ups. Sunnorting Case Study Needs and Concerns: 5, 9, 10, 15 inadequate.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.