Application of the Engineering Economic Analysis Process and Life Cycle Concepts to Advanced Production and Manufacturing Systems

Author(s):  
James A. Bontadelli
Symmetry ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 226
Author(s):  
Xuyang Zhao ◽  
Cisheng Wu ◽  
Duanyong Liu

Within the context of the large-scale application of industrial robots, methods of analyzing the life-cycle cost (LCC) of industrial robot production have shown considerable developments, but there remains a lack of methods that allow for the examination of robot substitution. Taking inspiration from the symmetry philosophy in manufacturing systems engineering, this article further establishes a comparative LCC analysis model to compare the LCC of the industrial robot production with traditional production at the same time. This model introduces intangible costs (covering idle loss, efficiency loss and defect loss) to supplement the actual costs and comprehensively uses various methods for cost allocation and variable estimation to conduct total cost and the cost efficiency analysis, together with hierarchical decomposition and dynamic comparison. To demonstrate the model, an investigation of a Chinese automobile manufacturer is provided to compare the LCC of welding robot production with that of manual welding production; methods of case analysis and simulation are combined, and a thorough comparison is done with related existing works to show the validity of this framework. In accordance with this study, a simple template is developed to support the decision-making analysis of the application and cost management of industrial robots. In addition, the case analysis and simulations can provide references for enterprises in emerging markets in relation to robot substitution.


2004 ◽  
Vol 10 (2) ◽  
pp. 57-66 ◽  
Author(s):  
Nerija Banaitiene ◽  
Zenonas Turskis

This paper presents a multiple criteria decision model for the life cycle of single family houses analysis based on a decision support system. Methods of multiple criteria analysis are applied for a complex analysis of the single‐family houses life cycle as well as for the evaluation of decisions. The method of multivariant design is applied for making variants of the life cycle of single‐family houses. The multivariant design and multiple criteria evaluation of a building life cycle allow the interested parties (client, contractor, user, etc.) to make efficient decisions on the ground of a quantitative and qualitative variants analysis. The decision maker's attitude can be reflected in the analysis process by the weighting of criteria. The proposed methodology provides a useful tool for building life cycle evaluation. Having applied the information gathered in the database, using the models of a model base, various interested parties of a building life cycle are able to make effective decisions. The system provides a user with all the necessary support required for decision making: in information terms the receipt of quantitative and conceptual information describing a building life cycle, gathering and use thereof, in terms of evaluation the analysis of such information applying the methods of a multiple criteria analysis.


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