Automatically Synthesizing Principle Solutions in Multi-Disciplinary Conceptual Design With Functional and Structural Knowledge

2015 ◽  
Author(s):  
Jin Qi ◽  
Jie Hu ◽  
Guoniu Zhu ◽  
Yinghong Peng
Keyword(s):  
Conceptual Design ◽  
Structural Knowledge ◽  
Synthesis Process ◽  
Synthesis Methods ◽  
Industrial Case Study ◽  
Agent Based ◽  
Vibration Impact ◽  
And Function ◽  
Design Conflicts

Synthesizing principle solutions (PSs) in various disciplines together is a common practice in multi-disciplinary conceptual design (MDCD), which generates the combination of PSs to meet the desired functional requirement. Different from structure- and function-based synthesis methods, a hybrid PS synthesis (HPSS) method through integrating functional and structural knowledge is proposed in this paper, which not only achieves the automated synthesis of multi-disciplinary PSs, but also resolves the undesired physical conflicts during the synthesis process. It comprises of united representation approach for modeling functional and structural knowledge of multi-disciplinary PSs, adapted agent-based approach for chaining the specified functional flows of PSs, and the extension conflict resolve approach for handling the partial design conflicts among selected PSs. An industrial case study on the emergency cutting off (ECO) device design was given to validate the applicability of HPSS, and it indicates that HPSS can not only get multi-disciplinary design result of ECO device, but also further resolve the design conflict (i.e., vibration impact) to optimize the functional structure of ECO device.

An integrated principle solution synthesis method in multi-disciplinary mechatronic product conceptual design

2018 ◽  
Vol 26 (4) ◽  
pp. 341-354 ◽  
Author(s):  
Jin Qi ◽  
Jie Hu ◽  
Ying-Hong Peng
Keyword(s):  
Conceptual Design ◽  
Synthesis Method ◽  
Design Solution ◽  
Universal Method ◽  
Solution Synthesis ◽  
Combinatorial Principle ◽  
Principle Solution ◽  
Vibration Impact ◽  
Design Conflicts

Synthesizing suitable principle solutions together to form the design solution is a universal method in conceptual design. For the modern mechatronic product, the conceptual design is often multi-disciplinary, which would be extremely time consuming and labour-intensive for designers to synthesize multi-disciplinary principle solutions together. Taking advantage of functional knowledge and structural knowledge of principle solution, this article proposes an integrated principle solution synthesis method which not only achieves the automated synthesis of multi-disciplinary principle solutions but also solves the undesired physical conflicts among principle solutions to be synthesized. In integrated principle solution synthesis, a synthesis agent is developed to chain the functional flows of principle solutions to form the combinatorial principle solution set, and synthesis agent selects the combinatorial principle solution with highest availability value as the recommended combinatorial principle solution. Then extensic theory is employed to deal with the partial design conflicts hidden in recommended combinatorial principle solution by extending and transforming the conflict functional structures. A case study on the emergency cutting off device design is given to prove the industrial applicability of integrated principle solution synthesis, which indicates that compared with traditional synthesis method, integrated principle solution synthesis can not only get multi-disciplinary design result of emergency cutting off device but also further resolve the design conflict (i.e. vibration impact) to optimize the functional structure of emergency cutting off device.

scholarly journals Estimating the Impact of Design Automation: The Influence of Knowledge on Potential Estimation

2019 ◽  
Vol 1 (1) ◽  
pp. 1943-1952
Author(s):  
Eugen Rigger ◽  
Alexander Lutz ◽  
Kristina Shea ◽  
Tino Stankovic
Keyword(s):  
Comparative Study ◽  
Conceptual Design ◽  
Design Automation ◽  
Careful Attention ◽  
Design Practice ◽  
Industrial Case Study ◽  
Early Stages ◽  
Sufficient Knowledge ◽  
The Impact

AbstractAssessing the impact of design automation on design practice prior to its implementation is difficult and subject to uncertainties. One reason for this is the designers' lack of knowledge about design automation. In this work, an industrial case study focusing on conceptual design of hydraulic circuits is conducted to assess the impact of the designers' knowledge on design automation potential estimation. In particular, the impact of demonstrating a prototypical implementation of a design automation application is investigated as a means to enhance the designers' knowledge about design automation. In this respect, a given set of metrics is rated twice to enable a comparative study: prior to and after introducing the design automation prototype. The yielded results show that the knowledge impacts the rating and supports reliability of potential estimation. Further, it is shown that designers acknowledge design automation potential for the early stages of design given sufficient knowledge about design automation. Yet, the results also indicate that careful attention needs to be put on the aspects covered by the prototype in order to avoid biasing participants.

Computational model for conceptual design based on extended function logic

1996 ◽  
Vol 10 (4) ◽  
pp. 255-274 ◽  
Author(s):  
Robert H. Sturges ◽  
Kathleen O'Shaughnessy ◽  
Mohammed I. Kilani
Keyword(s):  
Computational Model ◽  
Conceptual Design ◽  
Information Structure ◽  
Value Engineering ◽  
Synthesis Process ◽  
Function Evaluation ◽  
Value Analysis ◽  
Form And Function ◽  
And Function ◽  
Extended Function

AbstractFunction logic methods have been successfully used in Value Analysis (VA) and Value Engineering (VE) for several decades. This functional approach attempts to provide a common language for specialists in multiple domains. This paper describes an extension of function logic that assists in systematic identification of design functions, allocations, and their interrelations. Our approach identifies a three-level function/allocation/component information structure to represent the state of the design. We illustrate new types of links that exist between functions and the effect of these on the representation of the interrelated functions. These linkages provide new pathways for design information and function evaluation through allocation arithmetic and supported functions. A computational model of the conceptual design process is proposed based on the extended function logic design representation. An outline of the inputs, outputs and operations on form and function variables is given as a step prior to the synthesis process. We illustrate, by example, the process of translating functional representations across specialist domains. Finally, a computer-based aid to developing functional models is described.

Development of a methodology for using function analysis in flexible design strategies

1998 ◽  
Vol 212 (3) ◽  
pp. 215-230 ◽  
Author(s):  
A M King ◽  
S Sivaloganathan
Keyword(s):  
Function Analysis ◽  
Flexible Design ◽  
Design Strategies ◽  
Industrial Case Study ◽  
Current Function ◽  
Powered Wheelchair ◽  
Analysis Methodology ◽  
Identification Function ◽  
And Function

This paper shows the development of a function analysis methodology for use in flexible design. This is a strategy to identify common areas of existing designs and then form a new ‘core design’ on which the new designs can be based. A full review of current function analysis techniques is given, from which the new systematic methodology is based. The method has three stages: function identification, function description and function systematization. An industrial case study is given with the function analysis of a powered wheelchair.

Agent-based collaborative product design engineering: An industrial case study

2006 ◽  
Vol 57 (1) ◽  
pp. 26-38 ◽  
Author(s):  
Qi Hao ◽  
Weiming Shen ◽  
Zhan Zhang ◽  
Seong-Whan Park ◽  
Jai-Kyung Lee
Keyword(s):  
Product Design ◽  
Design Engineering ◽  
Industrial Case Study ◽  
Agent Based ◽  
Collaborative Product Design

A Hierarchical Modeling Scheme With Non Functional Requirements

2010 ◽  
Author(s):  
Prabhu Shankar ◽  
Beshoy Morkos ◽  
Joshua D. Summers
Keyword(s):  
Conceptual Design ◽  
Hierarchical Modeling ◽  
Design Parameters ◽  
Design Decision ◽  
Functional Requirements ◽  
Industrial Case Study ◽  
Design Information ◽  
Working Principle ◽  
Multiple Domains

This paper presents a sequence of multi domain matrix based modeling scheme, that includes non functional design requirements, to capture conceptual design information. The current matrix based modeling schemes are congruent to the steps followed in typical design processes but are limited to functional requirements. An industrial case study is analyzed to understand how and where the non functional requirements contribute to the design. It is observed from the case study that the non functional requirements drive the design decision process and constrains the way the product functionality is realized. Based on the observations made in the case study, a sequence of multiple domains is proposed: functional requirements to functions, functions to working principle, working principle to non functional requirements, non functional requirements to components, components to design parameters, design parameters to test measures and test measures to tests. This sequence is realized in a matrix based hierarchical modeling scheme, to capture the conceptual design information.

Karpophoroi deities and the Attic cult of Ge. Notes on IG II2 4758

2014 ◽  
Vol 7 ◽  
pp. 193-203
Author(s):  
Jenny Wallensten
Keyword(s):  
The Earth ◽  
And Function

Karpophoros, fruit-bearing, is an epithet easily considered as “literary”, i.e., a poetic name with little or no relation to cult. The epigraphic sources, however, clearly show us that gods thus named were offered divine worship. The epithet is found in connection with several deities. Goddesses of agriculture, such as Demeter, and Ge, the Earth, naturally carry this name, but so do Zeus, Dionysos and a goddess known as “The Aiolian”, who was sometimes associated with Agrippina. This paper surveys deities known as karpophoroi and examines what their cult entailed. Its focus is, however, on a brief Acropolis inscription, IG II2 4758, where Ge is honoured as Karpophoros, in accordance with an oracle. The case study provides insights into the Attic cult of Ge, the epithet Karpophoros, as well as the use and function of epithets within Greek dedicatory language.

scholarly journals CdSe QD Biosynthesis in Yeast Using Tryptone-Enriched Media and Their Conjugation with a Peptide Hecate for Bacterial Detection and Killing

Nanomaterials ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 1463 ◽  
Author(s):  
Vishma Pratap Sur ◽  
Marketa Kominkova ◽  
Zaneta Buchtova ◽  
Kristyna Dolezelikova ◽  
Ondrej Zitka ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Synthesis Process ◽  
Synthesis Methods ◽  
Bacterial Cells ◽  
Cdse Qds ◽  
Yeast Saccharomyces Cerevisiae ◽  
Shape Distribution ◽  
Transmission Electron ◽  
A Cell ◽  
Physical And Chemical

The physical and chemical synthesis methods of quantum dots (QDs) are generally unfavorable for biological applications. To overcome this limitation, the development of a novel “green” route to produce highly-fluorescent CdSe QDs constitutes a promising substitute approach. In the present work, CdSe QDs were biosynthesized in yeast Saccharomyces cerevisiae using a novel method, where we showed for the first time that the concentration of tryptone highly affects the synthesis process. The optimum concentration of tryptone was found to be 25 g/L for the highest yield. Different methods were used to optimize the QD extraction from yeast, and the best method was found to be by denaturation at 80 °C along with an ultrasound needle. Multiple physical characterizations including transmission electron microscopy (TEM), dynamic light scattering (DLS), energy-dispersive X-ray spectroscopy (EDX), and spectrophotometry confirmed the optical features size and shape distribution of the QDs. We showed that the novel conjugate of the CdSe QDs and a cell-penetrating peptide (hecate) can detect bacterial cells very efficiently under a fluorescent microscope. The conjugate also showed strong antibacterial activity against vancomycin-resistant Staphylococcus aureus (VRSA), methicillin-resistant Staphylococcus aureus (MRSA), and Escherichia coli, which may help us to cope with the problem of rising antibiotic resistance.

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