scholarly journals CONCEPTUALIZE–DESIGN ENHANCEMENT OF SYSTEMATIC DESIGN ENGINEERING METHOD

2013 ◽  
Author(s):  
W. Ernst Eder
Keyword(s):  
Life Cycle ◽  
Engineering Design ◽  
Design Methodology ◽  
Engineering Method ◽  
Design Engineering ◽  
Systematic Design ◽  
Transformation System ◽  
Levels Of Abstraction ◽  
Case Examples ◽  
Decomposition Of Functions

The engineering design methodology of Pahl and Beitz is good in the detailed stages, but needs enhancement in the early stages of conceptualizing and embodiment-in-principle. The concept of ‘functions’ has been enhanced by Hubka and colleagues. A ‘functional basis’ (Hirtz et al) has improved the definitions of ‘flows’ and ‘functions’, their work does not go far enough to provide a basis for conceptualizing. ‘Affordances’ (Maier and Fadel) are covered by full use of systematic conceptualizing of design engineering solutions. The Pahl-Beitz model and method of ‘decomposition of functions’, ‘physics’, and components is contrasted with the Hubka models of a transformation system, TrfS, its constituents, structures, properties life cycle, etc., and their use as method for design engineering by searching for alternative embodiments at each of these levels of abstraction. These steps are illustrated in (to date) 21 case examples published between 1976 and 2012, several of them in the CEEA conferences and their predecessors.

scholarly journals CASE STUDY IN SYSTEMATIC DESIGN ENGINEERING – BOW THRUSTER COVERS

2012 ◽  
Author(s):  
W Ernst Eder
Keyword(s):  
Engineering Design ◽  
Design Process ◽  
Design Science ◽  
Process Engineering ◽  
Design Engineering ◽  
Learning Design ◽  
Systematic Design ◽  
Methodical Approach ◽  
Novel Design

Students learning design engineering at times need a good example of procedure for novel design engineering. The systematic heuristic-strategic use of a theory to guide the design process – Engineering Design Science – and the methodical design process followed in this case study is only necessary in limited situations. The full procedure should be learned, such that the student can select appropriate parts for other applications. Creativity is usually characterized by a wide search for solutions, especially those that are innovative. The search can be helped by this systematic and methodical approach. This case example is presented to show application of the recommended method, and the expected scope of the output, with emphasis on the stages of conceptualizing. The case follows a novel design problem of a mechanism to open and close the bow thruster covers for the Caravan Stage Barge.

scholarly journals ENGINEERING DESIGN VS. ARTISTIC DESIGN – A DISCUSSION

2012 ◽  
Author(s):  
W. Ernst Eder
Keyword(s):  
Engineering Design ◽  
Design Research ◽  
Industrial Design ◽  
Design Science ◽  
Design Engineering ◽  
Design Processes ◽  
Case Examples ◽  
Engineering Sciences ◽  
Technical Systems ◽  
Industrial Designers

‘Design’ can be a noun, or a verb. Six paths for research into engineering design (as verb) are identified, they must be co-ordinated for internal consistency and plausibility. Design Research tries to clarify design processes and their underlying theories – designing in general, and particular forms, e.g. design engineering. Theories are a basis for deriving theory- based design methods. Design engineering and artistic forms of designing, industrial design, have much in common, but also differences. For an attractive and user-friendly product, its form (observable shape) is important – a task for industrial designers, architects, etc. ‘Conceptualizing’ consists of preliminary sketches, a direct entry to hardware – industrial designers work ‘outside inwards’. For a product that should work and fulfill a purpose, perform a transformation process, its functioning and operation are important – a task for engineering designers. Anticipating and analyzing a capability for operation is a role of the engineering sciences. The outcome of design engineering is a set of manufacturing instructions, and analytical verification of anticipated performance. Design engineering is more constrained than industrial design, but in contrast has available a theory of technical systems and its associated engineering design science, with several abstract models and representations of structures. Engineering designers tend to be primary for technical systems, and their operational and manufacturing processes – they work ‘inside outwards’. Hubka’s theory, and consequently design metho- dology, includes consideration of tasks of a technical system, typical life cycle, duty cycle, classes of properties (and requirements), mode of action, development in time, and other items of interest for engineering design processes. Hubka’s methodology is demonstrated by several case examples.

scholarly journals CASE STUDY IN SYSTEMATIC DESIGN ENGINEERING – STAGE BARGE GANGWAY

2013 ◽  
Author(s):  
W. Ernst Eder
Keyword(s):  
Engineering Design ◽  
Design Process ◽  
Design Problem ◽  
Design Science ◽  
Process Engineering ◽  
Design Engineering ◽  
Learning Design ◽  
Systematic Design ◽  
Novel Design

Students learning design engineering at times need a good example of procedure for novel design engineering. The systematic heuristic-strategic use of a theory to guide the design process – Engineering Design Science – and the methodical design process followed in this case study is only necessary in limited situations. The full procedure should be learned, such that the studentcan select appropriate parts for other applications.This case example is presented to show application of the recommended method, and the expected scope of the output, with emphasis on the stages of conceptualizing. The case follows a novel design problem of a gangway for ship-shore transfer for the Caravan Stage Barge.

Case Study in Systematic Design Engineering: Automotive Oil Pump Redesign

2010 ◽  
Author(s):  
W. Ernst Eder
Keyword(s):  
Engineering Design ◽  
Design Process ◽  
Design Science ◽  
Process Engineering ◽  
Design Engineering ◽  
Learning Design ◽  
Systematic Design ◽  
Oil Pump ◽  
Methodical Approach

Students learning design engineering at times need a good example of procedure for design engineering, both for novel problems and for redesign. The systematic heuristic-strategic use of a theory to guide the design process — Engineering Design Science — and the methodical design process followed in this case study is only necessary in limited situations. The full procedure should be learned, such that the student can select appropriate parts for other applications. Creativity is usually characterized by a wide search for solutions, especially those that are innovative. The search can be helped by this systematic and methodical approach. This case example is presented to show application of the recommended method for redesign, and the expected scope of the output, with emphasis on the stages of conceptualizing. The case follows a redesign problem of an automotive oil pump.

Case Study in Systematic Design Engineering: Trapeze Demonstration Rig

2010 ◽  
Author(s):  
W. Ernst Eder
Keyword(s):  
Engineering Design ◽  
Design Process ◽  
Design Science ◽  
Process Engineering ◽  
Design Engineering ◽  
Learning Design ◽  
Systematic Design ◽  
Methodical Approach ◽  
Novel Design

Students learning design engineering at times need a good example of procedure for novel design engineering. The systematic heuristic-strategic use of a theory to guide the design process — Engineering Design Science — and the methodical design process followed in this case study is only necessary in limited situations. The full procedure should be learned, such that the student can select appropriate parts for other applications. Creativity is usually characterized by a wide search for solutions, especially those that are innovative. The search can be helped by this systematic and methodical approach. This case example is presented to show application of the recommended method, and the expected scope of the output, with emphasis on the stages of conceptualizing. The case follows a novel design problem of a rig for a trapeze demonstration team to be used outdoors.

scholarly journals Theory of Technical Systems – Relationships to Engineering Sciences

2011 ◽  
Author(s):  
W. Ernst Eder
Keyword(s):  
Life Cycle ◽  
Design Science ◽  
Design Method ◽  
Design Procedure ◽  
Transformation Process ◽  
Systematic Design ◽  
Design Synthesis ◽  
Case Examples ◽  
Engineering Sciences ◽  
Technical Systems

Products (process or tangible systems) are defined with reference to standard ISO9000:2005. Designing products with a substantial engineering content, technical systems (TS), means to fully describe them ready for manufacture – in detail and assembly drawings, parts lists, adjustment instructions, customer instructions, etc. Designing must take into account all recognized requirements, especially implied and stated requirements for the designing-manufacturing-distributing organization, the intended transformation process (TrfP), and all other phases of the TS-life cycle, including societal norms, economic considerations, etc. The theory of technical systems (TTS) and its associated engineering design science (EDS) provides a framework for design considerations about engineering products, including the technology, TS-life cycle, properties, and other aspects of artificial transformations and their operators. The triad ‘theory - subject - method’ suggests that a systematic enginee-ring design method can be derived from TTS and EDS, to augment the usual intuitive design procedure, especially where the design problem is not routine. Engineering sciences are essential in this design process, (a) for analysis of existing systems and/or proposals for synthesis of designed systems, and (b) to assist as heuristics during design synthesis. Design synthesis is the more difficult operation, it requires iterative working. Several case examples have been published to demonstrate the application of the recommended systematic design method. Some of the relationships between engineering sciences and systematic design processes are explored to show their interdependence, and the need to provide a wider context in this area.

scholarly journals A STRATEGY FOR TEACHING AND LEARNING OF SYSTEMATIC DESIGN ENGINEERING

2015 ◽  
Author(s):  
W. Ernst Eder
Keyword(s):  
Engineering Design ◽  
Design Problem ◽  
Teaching And Learning ◽  
Transformation Process ◽  
Design Engineering ◽  
Systematic Design ◽  
Assembly Drawing ◽  
Boundary Functions ◽  
Technical Systems ◽  
Commercial Device

Systematic engineering design can use thetools, models and methods recommend by Hubka to helpdesigners, especially in critical situations. These methodscan be applied for novel designing, or for re-designing.In teaching, observations of students revealed difficultiesin applying and formulating “internal and crossboundaryfunctions” of technical systems (TS), and of“operations” in a transformation process (TrfP).A strategy to overcome these difficulties is to introducesufficient theory, then to provide a re-design problem,using an existing commercial device, (a) as a cut-away toshow the inner workings, and (b) as a complete devicethat can be dis-assembled – accompanied by engineeringdrawings of each part, an assembly drawing and anexploded view. Students (1) studied the hardware anddrawings, (2) identified elemental organs, and usefulorgan groups, and (3) wrote their interpretation of whateach organ group is capable of doing – the TS-internaland/or cross-boundary functions, to be represented in aTS-function structure. An example is offered.

On the Maximum Value of the Maximum Degree of Kinematic Chains

1987 ◽  
Vol 109 (4) ◽  
pp. 487-490 ◽  
Author(s):  
Hong-Sen Yan ◽  
Frank Harary
Keyword(s):  
Graph Theory ◽  
Maximum Degree ◽  
Design Methodology ◽  
Creative Design ◽  
Systematic Design ◽  
Kinematic Chains ◽  
Maximum Value ◽  
Mathematical Expressions

One of the major steps in the development of a systematic design methodology for the creative design of vehicle mechanisms is to obtain all possible link assortments, and then to generate the catalogs of kinematic chains. If the generalized mathematical expressions for the maximum value M of the maximum number of joints incident to a link of kinematic chains with N links and J joints can be derived, the process of solving link assortments can be more systematic. Using elementary concepts of graph theory, we derived explicit relationships for M for two regions of the J-N plane.

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