Engineering Design Perspectives: DFX, DFMA, DFE, and More
Explore the world of engineering design perspectives through DFX (Design For X) criteria, including DFF, DFA, DFD, DFM, DFMA, and more. Learn about the importance of analyzing and evaluating different viewpoints in product design to optimize function, manufacturing, assembly, environment, and user experience. Gain insights into guidelines and heuristics for better decision-making from a manufacturing perspective.
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Presentation Transcript
Engineering Business Skills 2 Learning Outcome 3: Analysis and Evaluation of an Engineering Design Presentation 1: DESIGN PERSPECTIVES
Design perspectives Design perspectives When a product is being designed different priorities and perspectives may be applied. The acronym DFX refers to "Design For X", where X is a set of criteria or perspectives to be considered explicitly and systematically when accounting for the downstream implications of design choices.
DFX DFX DFF: Design for function DFA: Design for assembly DFD: Design for disassembly DFM: Design for manufacturing DFMA: Design for manufacturing and assembly
DFX DFX DFE: Design for environment DFMaint: Design for maintainability DFR: Design for reliability DFS: Design for safety DFU: Design for usability / ergonomics
Design for Design for function function The item will be analyzed to ascertain if it is fit for its primary purpose; this will typically involve mathematical techniques and practical testing.
Design for manufacturing and Design for manufacturing and assembly assembly Design for manufacturing and assembly (also called DFM, DFA, or DFMA) refers to the set of tools, methods and processes for analyzing the manufacturing consequences of design decisions. It aims to improve a design in order to reduce manufacturing cost and complexity.
DFMA DFMA Guidelines Guidelines DFMA guidelines and checklists provide heuristics that, when followed, tend to reduce complexity and cost of production. A designer with these heuristics in mind during conceptual design and detailed design can make better decisions from a manufacturing perspective.
Design for Design for environment environment Design for environment (DFE) refers to procedures and processes for analyzing the environmental impact of a product throughout its life cycle and making design changes to reduce the environmental impact of a product. Full accounting of the environmental impact of a product throughout its life is called life cycle assessment (LCA). DFE is one approach that designers can take toward sustainable development.
Design for Design for Maintainability Maintainability Maintainability is the degree to which a product can be maintained or repaired easily, economically, and efficiently. Design for maintainability (DFMaint) encompasses the measures taken to reduce the time and other resources spent in keeping a product performing well. It benefits the end user by reducing the total ownership costs through less downtime (lost productivity), lower maintenance costs, less inventory, fewer tools, and improved safety.
Failure mode and effects analysis Failure mode and effects analysis FMEA is a systematic set of activities intended to help a designer or engineer to analyze the design of a system (product or process) to assure that, to the extent possible, potential failures, their associated causes, and their potential effects have been considered and addressed. The goals of FMEA are to: Identify ways in which a product may fail Examine the effects of failure on the customer Determine the causes of each failure List methods of detecting potential failures before production Identify and implement corrective actions
