3 edition of **A knowledge-based tool for multilevel decomposition of a complex design problem** found in the catalog.

A knowledge-based tool for multilevel decomposition of a complex design problem

- 3 Want to read
- 13 Currently reading

Published
**1989**
by National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division, For sale by the National Technical Information Service] in [Washington, DC], [Springfield, Va
.

Written in English

- Computer programs.

**Edition Notes**

Other titles | A knowledge based tool for multilevel decomposition of a complex design problem. |

Statement | James L. Rogers. |

Series | NASA technical paper -- 2903. |

Contributions | United States. National Aeronautics and Space Administration. Scientific and Technical Information Division. |

The Physical Object | |
---|---|

Format | Microform |

Pagination | 1 v. |

ID Numbers | |

Open Library | OL18029154M |

protocol), I’ll ﬂnd the underlying problem implicitly being solved † Why care about the problem if there’s already a solution? † It leads to simple, rigorous understanding for systematic design Layering as decomposition 1. Analytic foundation for network architecture 2. Common language for thinking and comparing 3. Methodologies. () A specification language for problem partitioning in decomposition-based design optimization. Structural and Multidisciplinary Optimization , () Parallel Solution Methods for Aerostructural Analysis and Design Optimization.

This nice little book by Volkovyskii et al (translated from Russian) is a collection of exercises, and it covers the central aspects of and themes in complex function theory, elementary geometry, harmonic and analytic functions. It contains graphics and illustrations, and the last third of the book consists of answers and s: 9. Figure 1 shows an ad-hoc decomposition in which a design has structures S 1, S 2,.., S n; behaviors B 1, B 2,.., B p; and goals G 1, G 2,.., G multiple subdesigns 1 through m resulting from decomposition contain potentially modified versions of the original structure, behavior, and goal attributes. For example, if G 1 is a weight goal, G 1 1 through G 1 m would .

Saravana Moorthy RInternational Journal of Advances in Computer Science and et al., International Journal of Advances in Computer Science and Technology, 3(8), August , – A Design for Problem Decomposition Models In The Development Of Software Intensive System Saravana Moorthy R1, Sharma2 1PhD Scholar; 2PhD Guide; . We introduce some cheaper and faster variants of the classical additive Schwarz preconditioner (AS) for general sparse linear systems and show, by numerical examples, that the new methods are superior to AS in terms of both iteration counts and CPU time, as well as the communication cost when implemented on distributed memory computers. This is especially .

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The purpose of this research effort is to develop a knowledge‐based tool to act as an intelligent adviser for the design manager by identifying the subsystems of a new, complex design problem, ordering the subsystems into a hierarchical format, and marking the interactions among the subsystems to facilitate the use of multilevel by: 7.

Get this from a library. A knowledge-based tool for multilevel decomposition of a complex design problem. [James L Rogers; United States.

National Aeronautics and Space Administration. Scientific and Technical Information Division.]. A knowledge-based tool for multilevel decomposition of a complex design problem.

By James L. Rogers. Abstract. Although much work has been done in applying artificial intelligence (AI) tools and techniques to problems in different engineering disciplines, only recently has the application of these tools begun to spread to the decomposition of Author: James L. Rogers.

Casting a given design problem into a particular optimization model by selecting objectives and constraints is generally a subjective task. In system models where hierarchical decomposition is possible, a formal process for selecting objective functions can be made, so that the resulting optimal design model has an appropriate decomposed form Cited by: Methods in multidisciplinary design optimization rely on computer tools to manage the large amounts of information involved.

One such tool is DeMAID (DEsign Manager's Aide for Intelligent Decomposition), which incorporates planning and scheduling functions to analyse the effect of the information coupling between design tasks in complex systems on the efficiency of the design Cited by: A system design problem is presented and both a conventional and unconventional decomposition are described.

It is shown that the unconventional decompositions have distinct advantages for the. The relationships among design variables are modeled as the processing units of a network. The design variables themselves are modeled as the communication links between these units. The optimal decomposition is attained by minimizing the network reliability while maximizing the number of operating links.

A Knowledge-Based Tool for Multilevel Decomposition of a Complex Design Problem. ; VIEW 7 EXCERPTS. HIGHLY INFLUENTIAL.

C4ISR Architectures, Social Network Analysis and the FINC Methodology: An Experiment in Military Organisational Structure. Anthony H. Dekker; Engineering.

Abstract. The currently common sequential design process for engineering systems is likely to lead to suboptimal designs. Recently developed decomposition methods offer an alternative for coming closer to optimum by breaking the large task of system optimization into smaller, concurrently executed and, yet, coupled tasks, identified with engineering disciplines or.

DECOMPOSITION METHODS FOR MULTIDISCIPLINARY SYNTHESIS 9 A. Multilevel Optimization Methods for Hierarchic Decomposition The multilevel linear decomposition approach [18] is based on Bellman's Dynamic Programming method [24], with modifications to account for dimensionality problems.

The design thinking process is extremely fluid so jumping from one step to another for the occasional gut check is completely normal. You should never let a complex problem get in the way of you coming up with great and innovative ideas.

Problem decomposition is a fantastic tool to help you break your problem into several sub problems. A Knowledge-Based Tool for Multilevel Decomposition of a Complex Design Problem. Adrian John L. ; A Knowledge-Based Tool for Multilevel Decomposition of a Complex Design Problem.

; VIEW 1 EXCERPT. Modeling impacts of process architecture on cost and schedule risk in product development.

Submodular Functions and Convexity Mathematical Programming: The State of the Art A Knowledge-Based Tool for Multilevel Decomposition of a Complex Design Problem Jan. The paper presents a methodology for nondeterministic design optimization of hierarchically coupled structural systems.

Deterministic multilevel decomposition-based design formulations for such systems have been modified to incorporate the presence of uncertainty in both the problem parameters, and in design variables at various levels of a multilevel. knowledge-based tool to act as an intelligent advisor for the design manager.

This tool identifies the subsystems of a complex design problem, orders them into a well-structured format, and marks the couplings among subsystems to facilitate use multilevel tools.

The tool was tested in the decomposition of the COFS (Control of Flexible. Multilevel decision theory arises to resolve the contradiction between increasing requirements towards the process of design, synthesis, control and management of complex systems and the limitation of the power of technical, control, computer and other executive devices, which have to perform actions and to satisfy requirements in real time.

Multi-Level Decomposition for Tractability in Structural Design Optimization. A knowledge-based search framework for designing composite structures.

Structural Optimization, Vol. 16, No. 4 Improved multilevel optimization approach for the design of complex engineering systems.

This tool identifies the subsystems of a complex design problem, orders them into a well-structured format, and marks the couplings among the subsystems to facilitate the use of multilevel tools. The tool was tested in the decomposition of the COFS (Control of Flexible Structures) mast design which has about 50 modules.

complex, multidomain design problem essentially consists of the following steps depicted in Fig. 2: 1. Hierarchical decomposition of each system domain, which includes the following a. multilevel abstraction b. identiﬁcation of form parameters FPs and behavior pa-rameters BPs 2.

Multi Domain Formulation which includes the following. complex problem involving computationally expensive analyses which must be performed within an "A Knowledge-Based Tool for Multilevel Decomposition of a Complex Design Problem", NASA TPMay Steward, D.V., System Analysis and Management (Petrocelli Books,New York, N.Y.).

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): A class of multilevel methods for second order problems is considered in the additive Schwarz framework. It is established that, in the general case, the condition number of the iterative operator grows at most linearly with the number of levels.

The bound is independent of the mesh sizes and the .Explicit and Implicit Problem Decomposition Ho () described two types of decomposition.

An expert designer can design efficiently by using an explicit decomposition in which the structure of the design problem is represented at the beginning of the design process. An implicit decomposition does not begin by establishing the entire structure.In engineering design, problem decomposition has received considerable attention as a means of reducing multidisciplinary design cycle time and of streamlining the design process by adequate arrangement of the tasks (Kusiak et al., ).

Decomposition methods are also used in decision-making theory. A typical example is the AHP method (Saaty.