Analysis of Equipment for Testing the Processability by Injection Molding of Plastics on the Basis of Axiomatic Design Principles

2019 ◽  
Vol 957 ◽  
pp. 437-444
Author(s):  
Adelina Hriţuc ◽  
Margareta Coteaţă ◽  
Oana Dodun ◽  
Gheorghe Nagîţ ◽  
Laurenţiu Slătineanu
Keyword(s):  
Injection Molding ◽  
Axiomatic Design ◽  
Design Principles ◽  
The Other ◽  
Manufacturing Processes ◽  
Functional Requirements ◽  
Constructive Solution ◽  
Other Hand ◽  
Design Activities

The obtaining of information concerning the processability by injection of plastics could facilitate a better design of injection manufacturing processes of parts made of such materials. With this aim in view, equipment for testing the processability by injection of plastics was designed. On the other hand, there are known the possibilities of using the axiomatic design principles to solve equipment or various design activities problems. Within this paper, an evaluation of the complying with the requests of the axiomatic design by the designed equipment was developed. The axiom of independence of the functional requirements necessary to be achieved by the equipment was applied. The analysis allowed the formulation of some remarks concerning the fulfillment of some principles of axiomatic design by the constructive solution proposed for the equipment for testing the processability by injection of plastics.

Knowledge Base Representation for Axiomatic Design Through Ontologies

2013 ◽  
Author(s):  
Zhuochen Shi ◽  
Gregory Mocko
Keyword(s):  
Axiomatic Design ◽  
Scientific Basis ◽  
Structure Design ◽  
Design Parameters ◽  
Formal Ontology ◽  
Functional Requirements ◽  
Car Seat ◽  
Design Structure ◽  
Design Activities ◽  
Multiple Groups

Axiomatic Design has been applied and developed as a tool, offering a scientific basis for design and improving design activities. Axiomatic Design has been used in various fields such as software system design, structure design, and product design. However, several challenges and limitations exist in Axiomatic Design including: the inconsistency in identifying design parameters, existence of coupled design, and multiple groups of functional requirements and design parameters. Aimed at using Axiomatic Design to generate conceptual solutions in engineering design while overcoming its limitations, a formal ontology is developed. The ontology defines functional requirements, design parameters, concepts, components and variables and their relationships. Axioms and rules of Axiomatic Design for the ontology are summarized. The Axiomatic Design ontology is applied to the design of a car seat as an example generating several concepts, and then compared and analyzed multiple groups of the concepts with the help of Axiomatic Design rules. More design ideas can be generated by combining detailed concepts as the higher level possible solutions.

scholarly journals Turning movement into music: Issues and applications of the MotionComposer, a therapeutic device for persons with different abilities

2016 ◽  
Vol 6 (1) ◽  
pp. 23-47 ◽  
Author(s):  
Andreas Bergsland ◽  
Robert Wechsler
Keyword(s):  
Cerebral Palsy ◽  
Design Principles ◽  
The Other ◽  
Technical Description ◽  
Other Hand ◽  
General Mapping ◽  
The One ◽  
Over Time ◽  
Related Design

The article discusses the ways in which the MotionComposer (MC), a newly developed device that turns movement into music, engages users with different abilities, so as to provide positive psychological and somatic effects. It begins with a case study – the story of one application of the device involving a young man with cerebral palsy. His experiences are typical of many others and provide some useful generalisations. The article then discusses a number of goals and related design principles that have been important in the development of the device, including a discussion of two conflicting strategies which must be reconciled: On the one hand, there is a need for clear causality. On the other hand, for such a device to remain interesting over time, there is a need for variation. A technical description of the hardware and software is given, followed by a discussion of general mapping issues pertaining to the different sound environments or interaction modes of the MC.

scholarly journals Application of Axiomatic Design principles in conceptual design

2018 ◽  
Vol 223 ◽  
pp. 01008 ◽  
Author(s):  
Josipa Delaš ◽  
Stanko Škec ◽  
Mario Štorga
Keyword(s):  
Conceptual Design ◽  
Evaluation Process ◽  
Axiomatic Design ◽  
Design Principles ◽  
Concept Development ◽  
Independence Axiom ◽  
Functional Requirements ◽  
Information Axiom ◽  
Concept Evaluation ◽  
Insight Into

The main objective of this paper is to propose a modified methodology for concept evaluation by applying Axiomatic Design principles. Several drawbacks were recognised during the literature review and application of established Axiomatic Design principles that limit its use for concept evaluation. These drawbacks include the lack of analysis of concepts that violate the Independence Axiom, the application to concepts that are not generated with Axiomatic Design and inclusion of constraints and requirements in the evaluation process. The proposed methodology consists of four steps of which the first one is to analyse the compliance of concepts with a set of functional requirements. Afterwards, to determine the possible violation of the Independence Axiom, non-diagonal elements need to be examined and reangularity and semiangularity values calculated for each concept. Finally, concepts are evaluated in terms of Information Axiom to include requirements, criteria and constraints other than functional requirements. Applying Information Axiom to all concepts regardless of Independence Axiom violation provides insight into the complexity of concepts. The proposed methodology was applied to mobility scooter conceptual design conducted in cooperation with an industrial partner. The partner company provided input and system constraints at the beginning of the project and guidelines for concept development. Constraints were taken into consideration by applying the Information Axiom in which constraints are compared with values measured on prototypes.

Creativity Increases through Top-Down Design Procedures

2002 ◽  
Vol 46 (6) ◽  
pp. 725-729 ◽  
Author(s):  
Martin G. Helander ◽  
Dag Caldenfors
Keyword(s):  
Design Methodology ◽  
Design Procedure ◽  
Axiomatic Design ◽  
Careful Consideration ◽  
The Other ◽  
Functional Requirements ◽  
Top Down ◽  
Design Features ◽  
Design Procedures ◽  
Experimental Subjects

Finke's notion of preinventive structure in top-down design was tested using Suh's methodology for top-down axiomatic design. Two groups of experimental subjects designed controls and displays for an “intelligent” automobile. One group was instructed to consider functional requirements and derive their design in a top-down fashion. The other group was also informed about functional requirements, and design methodology but was not instructed to use any particular design procedure. The first group produced significantly better designs than the second group - they were more creative, more practical and fulfilled design goals better. Top-down reasoning with careful consideration of functional requirements generated better design. Suh's methodology has an extra bonus, which is in agreement with Finke; it forces a slow deliberation of design features.

An Analytical Framework for Assessing the Complexity of Human-Machine Systems

2005 ◽  
Vol 49 (23) ◽  
pp. 2050-2054 ◽  
Author(s):  
Shuan Lo ◽  
Martin G. Helander
Keyword(s):  
Axiomatic Design ◽  
Design Principles ◽  
Analytical Framework ◽  
Analytical Tool ◽  
Design Parameters ◽  
Functional Requirements ◽  
Design Engineers ◽  
Machine Systems ◽  
Degree Of Coupling ◽  
User Actions

This research explores the use of axiomatic design principles for analyzing coupling in human-machine systems. Coupling is a generic dimension of complexity, and coupling between user goals and user actions widens the gulf of execution. An analytical framework was constructed based on the concept of design domains. This framework formalizes the interaction between user goals, functional requirements, design parameters, and user actions. User goals and user actions describe tasks from a user's perspective. Functional requirements and design parameters describe system's structure from an engineering perspective. Design equations are used to as a notation for representing the interaction between these attributes, and as a tool for characterizing the degree of coupling. By providing a general and rational criterion, the proposed method is conceived as an analytical tool that design engineers can use for early evaluations.

Visual Composition of Malay Woodcarvings in Vernacular Houses of Peninsular Malaysia

2012 ◽  
Author(s):  
Ismail Said
Keyword(s):  
Design Principles ◽  
Peninsular Malaysia ◽  
The Other ◽  
Visual Composition ◽  
Other Hand ◽  
Physical Form ◽  
Determining Factors ◽  
Similarities And Differences ◽  
Regional Architecture

Malay timber houses of Peninsular Malaysia are embellished with carved components that served both functional and aesthetic purpose, thus acting as one of the determining factors in defining the character of the regional architecture. The physical form of woodcarving is governed by four factors, namely principal forms and arrangement, types of incisions and perforations, types of motifs and design principles regulating its composition. The Malay craftsmen of Kelantan, Terengganu, Perak and Negeri Sembilan applied these factors in their carving which resulted in similarities and differences of visual compositions. The major similarities included the aplication of four principal forms of carving patterns and seven shaped of carving arrangements. On the other hand, the differences occurred in types of motifs and types of incisions.

scholarly journals ACHIEVING SIMPLICITY: A CONSIDERATION OF A SYSTEMATIC APPROACH

2020 ◽  
Vol 1 ◽  
pp. 2345-2354
Author(s):  
F. Pilz ◽  
S. Vajna ◽  
M. Schabacker
Keyword(s):  
Fuzzy Sets ◽  
Evaluation System ◽  
Systematic Approach ◽  
Design Principles ◽  
The Other ◽  
Design Engineering ◽  
Other Hand ◽  
The One

AbstractDesign principles from the field of design engineering require that a product be designed as unambiguous, safe and simple as possible. Simplicity results on the one hand from an objective product-relevant side, on the other hand from the experience and knowledge of the user. A product that is perceived as simple by one person may seem complicated to another. From this, the questions arise, with which attributes simplicity can be described and how these are to be captured. In this paper, an evaluation system for the subjective attributes of simplicity is created using the fuzzy sets approach.

scholarly journals Dealing with Uncertainties in Manufacturing Process Simulations

2017 ◽  
Vol 869 ◽  
pp. 226-233
Author(s):  
Patrick Ruediger ◽  
Hans Hagen
Keyword(s):  
Manufacturing Process ◽  
Working Environment ◽  
The Other ◽  
Manufacturing Processes ◽  
Simulation Validation ◽  
Other Hand ◽  
Process Simulations ◽  
Simulation Results

Uncertainty in manufacturing processes is as old as the manufacturing process itself. Simulationson the other hand are always certain in their outcome based on the chosen parameters. Nonethelessit makes sense to incorporate uncertainties in the simulation for validation and analysis of the realand simulated processes. This paper aims on highlighting the importance of an accurate understandingand measurement of uncertainty for simulation validation and thus to increase the significance andacceptance of simulation results in the working environment.

A study of cometary eruptions through OH radio-lines

1999 ◽  
Vol 173 ◽  
pp. 249-254
Author(s):  
A.M. Silva ◽  
R.D. Miró
Keyword(s):  
Short Duration ◽  
Growth Curves ◽  
The Other ◽  
Initial Mass ◽  
Radio Lines ◽  
Other Hand ◽  
Sudden Rise

AbstractWe have developed a model for theH2OandOHevolution in a comet outburst, assuming that together with the gas, a distribution of icy grains is ejected. With an initial mass of icy grains of 108kg released, theH2OandOHproductions are increased up to a factor two, and the growth curves change drastically in the first two days. The model is applied to eruptions detected in theOHradio monitorings and fits well with the slow variations in the flux. On the other hand, several events of short duration appear, consisting of a sudden rise ofOHflux, followed by a sudden decay on the second day. These apparent short bursts are frequently found as precursors of a more durable eruption. We suggest that both of them are part of a unique eruption, and that the sudden decay is due to collisions that de-excite theOHmaser, when it reaches the Cometopause region located at 1.35 × 105kmfrom the nucleus.

Closing the GAP—A 5Å Scanning Microscope

1969 ◽  
Vol 27 ◽  
pp. 6-7
Author(s):  
A. V. Crewe
Keyword(s):  
Normal Form ◽  
The Other ◽  
Resolving Power ◽  
Scanning Microscope ◽  
Conventional Microscope ◽  
Other Hand ◽  
Closing The Gap ◽  
Thermal Sources ◽  
Better Than ◽  
Transmission Microscope

We have become accustomed to differentiating between the scanning microscope and the conventional transmission microscope according to the resolving power which the two instruments offer. The conventional microscope is capable of a point resolution of a few angstroms and line resolutions of periodic objects of about 1Å. On the other hand, the scanning microscope, in its normal form, is not ordinarily capable of a point resolution better than 100Å. Upon examining reasons for the 100Å limitation, it becomes clear that this is based more on tradition than reason, and in particular, it is a condition imposed upon the microscope by adherence to thermal sources of electrons.

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