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Operations Research, Systems Engineering and Industrial Engineering Commons™
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Articles 1 - 4 of 4
Full-Text Articles in Operations Research, Systems Engineering and Industrial Engineering
Visualising Rationale In The Cpm, David H. Mott, Michael C. Dorneich
Visualising Rationale In The Cpm, David H. Mott, Michael C. Dorneich
Michael C. Dorneich
Rationale is being explored by the ITA in planning, for shared understanding of plans, and for capturing dependencies between assumptions/decisions and parts of the plan. Informal rationale captured during evaluation of the Collaborative Planning Model has been explored in terms of alternative visual representations and questions that these raise.
Improving Shared Understanding In Multilevel Planning, Michael C. Dorneich, David Mott, Ali Bahrami, Jitu Patel
Improving Shared Understanding In Multilevel Planning, Michael C. Dorneich, David Mott, Ali Bahrami, Jitu Patel
Michael C. Dorneich
Planning is a specific example of a problem solving activity that is undertaken across multiple (human) collaborative agents. In order to collaborate, these humans need to form a shared understanding of various aspects of the plan, mutual goals, the contexts of the other agents, and the rationale for others decisions and assumptions. Failure to reach this shared understanding can have serious implications to the success of the resulting plan. Currently plans are developed and shared with peer and subordinate units in a static format such as text, diagrams and spreadsheets which do not normally contain any of the reasoning, logic …
An Investigation Of The Residual Stress Characterization And Relaxation In Peened Friction Stir Welded Aluminum–Lithium Alloy Joints, Omar Hatamleh, Iris V. Rivero, Shayla E. Swain
An Investigation Of The Residual Stress Characterization And Relaxation In Peened Friction Stir Welded Aluminum–Lithium Alloy Joints, Omar Hatamleh, Iris V. Rivero, Shayla E. Swain
Iris V. Rivero
In this investigation the residual stresses generated from friction stir welded (FSW) 2195 aluminum–lithium alloy joints were characterized. The results derived from this research revealed significant levels of tensile residual stresses at the surface and throughout the thickness of the FSW samples. Furthermore, residual stress relaxation at the surface and throughout the thickness of the samples was assessed for laser peened friction stir welded aluminum–lithium joints. To do so the samples were cycled several times at a constant amplitude load. The results indicated that most of the relaxation for the surface residual stresses took place during the first cycle of …
Component Obsolescence Risk Assessment, Craig Josais, Janis P. Terpenny, Kenneth J. Mclean
Component Obsolescence Risk Assessment, Craig Josais, Janis P. Terpenny, Kenneth J. Mclean
Janis P. Terpenny
Custom low volume products and systems, such as those utilized by military and avionics applications; often make use of commercial high-tech components. In the past decade, technology has advanced very rapidly causing such components to have a shortened life span. Newer and better technologies are being introduced frequently, rendering components obsolete. Yet, custom low volume products and systems such as ships, submarines and aircraft can be in use for decades. Being proactive about obsolescence is critical to maintaining fully capable products and systems and satisfied customers. This paper presents an obsolescence risk measurement tool that is being developed to better …