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  • 1
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    IPAD products and implications for the future (1980)
    In:  CASI
    Details
    Publication Date: 2006-04-11
    Description: The betterment of productivity through the improvement of product quality and the reduction of cost is addressed. Productivity improvement is sought through (1) reduction of required resources, (2) improved ask results through the management of such saved resources, (3) reduced downstream costs through manufacturing-oriented engineering, and (4) lowered risks in the making of product design decisions. The IPAD products are both hardware architecture and software distributed over a number of heterogeneous computers in this architecture. These IPAD products are described in terms of capability and engineering usefulness. The future implications of state-of-the-art IPAD hardware and software architectures are discussed in terms of their impact on the functions and on structures of organizations concerned with creating products.
    Keywords: COMPUTER PROGRAMMING AND SOFTWARE
    Type: NASA. Langley Research Center IPAD: Integrated Programs for Aerospace-Vehicle Design; p 219-234
    Format: text
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  • 2
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    IPAD: Integrated Programs for Aerospace-vehicle Design (1985)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Early work was performed to apply data base technology in support of the management of engineering data in the design and manufacturing environments. The principal objective of the IPAD project is to develop a computer software system for use in the design of aerospace vehicles. Two prototype systems are created for this purpose. Relational Information Manager (RIM) is a successful commercial product. The IPAD Information Processor (IPIP), a much more sophisticated system, is still under development.
    Keywords: COMPUTER SYSTEMS
    Type: NASA-CR-3890 , NAS 1.26:3890
    Format: application/pdf
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  • 3
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    Feasibility study of an Integrated Program for Aerospace vehicle Design (IPAD). Volume 6: IPAD system development and operation (1973)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The strategy of the IPAD implementation plan presented, proposes a three phase development of the IPAD system and technical modules, and the transfer of this capability from the development environment to the aerospace vehicle design environment. The system and technical module capabilities for each phase of development are described. The system and technical module programming languages are recommended as well as the initial host computer system hardware and operating system. The cost of developing the IPAD technology is estimated. A schedule displaying the flowtime required for each development task is given. A PERT chart gives the developmental relationships of each of the tasks and an estimate of the operational cost of the IPAD system is offered.
    Keywords: AERODYNAMICS
    Type: NASA-CR-132396 , D6-60181-6
    Format: application/pdf
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  • 4
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    Feasibility study of an Integrated Program for Aerospace vehicle Design (IPAD). Volume 1B: Concise review (1973)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Reports on the design process, support of the design process, IPAD System design catalog of IPAD technical program elements, IPAD System development and operation, and IPAD benefits and impact are concisely reviewed. The approach used to define the design is described. Major activities performed during the product development cycle are identified. The computer system requirements necessary to support the design process are given as computational requirements of the host system, technical program elements and system features. The IPAD computer system design is presented as concepts, a functional description and an organizational diagram of its major components. The cost and schedules and a three phase plan for IPAD implementation are presented. The benefits and impact of IPAD technology are discussed.
    Keywords: AERODYNAMICS
    Type: NASA-CR-132391 , D6-60181-1B
    Format: application/pdf
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  • 5
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    Feasibility study of an Integrated Program for Aerospace vehicle Design (IPAD). Volume 1A: Summary (1973)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: IPAD was defined as a total system oriented to the product design process. This total system was designed to recognize the product design process, individuals and their design process tasks, and the computer-based IPAD System to aid product design. Principal elements of the IPAD System include the host computer and its interactive system software, new executive and data management software, and an open-ended IPAD library of technical programs to match the intended product design process. The basic goal of the IPAD total system is to increase the productivity of the product design organization. Increases in individual productivity were feasible through automation and computer support of routine information handling. Such proven automation can directly decrease cost and flowtime in the product design process.
    Keywords: AERODYNAMICS
    Type: NASA-CR-132390 , D6-60181-1A
    Format: application/pdf
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  • 6
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    Buckling analysis for structural sections and stiffened plates reinforced with laminated composites. (1972)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: A classical buckling analysis is developed for stiffened, flat plates composed of a series of linked flat plate and beam elements. Plates are idealized as multilayered orthotropic elements; structural beads and lips are idealized as beams. The loaded edges of the stiffened plate are simply supported and the conditions at the unloaded edges can be prescribed arbitrarily. The plate and beam elements are matched along their common junctions for displacement continuity and force equilibrium in an exact manner. Offsets between elements are considered in the analysis. Buckling under uniaxial compressive load for plates, sections and stiffened plates is investigated. Buckling loads are found as the lowest of all possible general and local failure modes and the mode shape is used to determine whether buckling is a local or general instability. Numerical correlations with existing analysis and test data for plates, sections and stiffened plates including boron-reinforced structures are discussed. In general, correlations are reasonably good.
    Keywords: STRUCTURAL MECHANICS
    Type: International Journal of Solids and Structures; 8; Mar. 197
    Format: text
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  • 7
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    Buckling analysis for axially compressed flat plates, structural sections, and stiffened plates reinforced with laminated composites (1971)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A classical buckling analysis is developed for stiffened, flat plates composed of a series of linked plate and beam elements. Plates are idealized as multilayered orthotropic elements. Structural beads and lips are idealized as beams. The loaded edges of the stiffened plate are simply-supported and the conditions at the unloaded edges can be prescribed arbitrarily. The plate and beam elements are matched along their common junctions for displacement continuity and force equilibrium in an exact manner. Offsets between elements are considered in the analysis. Buckling under uniaxial compressive load for plates, sections, and stiffened plates is investigated. Buckling loads are the lowest of all possible general and local failure modes, and the mode shape is used to determine whether buckling is a local or general instability. Numerical correlations with existing analysis and test data for plates, sections, and stiffened plates including boron-reinforced structures are discussed. In general correlations are reasonably good.
    Keywords: STRUCTURAL MECHANICS
    Type: NASA-CR-1887
    Format: application/pdf
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  • 8
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    Cost-effectiveness of integrated analysis/design systems /IPAD/ An executive summary. II (1974)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Evaluation of the cost-effectiveness of integrated analysis/design systems with particular attention to Integrated Program for Aerospace-Vehicle Design (IPAD) project. An analysis of all the ingredients of IPAD indicates the feasibility of a significant cost and flowtime reduction in the product design process involved. It is also concluded that an IPAD-supported design process will provide a framework for configuration control, whereby the engineering costs for design, analysis and testing can be controlled during the air vehicle development cycle.
    Keywords: COMPUTERS
    Type: AIAA PAPER 74-960 , Aircraft Design, Flight Test and Operations Meeting; Aug 12, 1974 - Aug 14, 1974; Los Angeles, CA
    Format: text
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  • 9
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    Compressive buckling analysis and design of stiffened flat plates with multilayered composite reinforcement. (1973)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Keywords: STRUCTURAL MECHANICS
    Format: text
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