Research on Effect Chain Model with Prolog

2011 ◽  
Vol 421 ◽  
pp. 578-581
Author(s):  
Huan Huan Su ◽  
Chang Qing Gao ◽  
Bo Yang ◽  
Bing Lv
Keyword(s):  
Life Cycle ◽  
Expert System ◽  
Problem Solving ◽  
Conceptual Design ◽  
Expert Knowledge ◽  
Design Stage ◽  
Chain Model ◽  
Innovative Design ◽  
Problem Solving Process ◽  
Reasoning Mechanism

Conceptual design is the most innovative stages in the life cycle of product development, and effect is the solving tools of TRIZ based on knowledge. The use of effects to solve the problem of conceptual design stage can improve the efficiency of Innovative design and competitiveness of enterprises. The problem-solving process of effects applied was described in this paper. In PROLOG environment, the knowledge representation was used to write the effect as expert knowledge base, and then the reasoning mechanism was used to make a simple expert system of effect. It also can be used to help designers check and resolve the design issues more conveniently.

Innovative Design in Quality Engineering

1999 ◽  
Author(s):  
Zbigniew M. Bzymek ◽  
Samir B. Billatos
Keyword(s):  
Problem Solving ◽  
Conceptual Design ◽  
Basic Concept ◽  
Design Stage ◽  
Quality Engineering ◽  
Innovative Design ◽  
Systematic Procedure ◽  
Conceptual Design Stage ◽  
And Mathematics

Abstract Industry is currently evaluating hundreds of applications to innovate their products. The Theory of Inventive Problem Solving (TIPS) can help industry achieve this goal. It provides principles of standard thinking called inventive standards that are based on a limited number of physics phenomena and mathematics theories. Applying these principles of thinking would avoid generating undesirable solutions and approach desirable ones. The theory is very powerful and almost unlimited. The basic concept of TIPS is understanding the process of describing a product that would then leads to its development. It is best applied when there are strong conflicts that the designer has to resolve. For example, to design a tailor needle, we have to solve the eye conflict. The needle’s eye should be small enough to secure comfortable sewing and big enough to put the thread through. The objective of this paper is to discuss TIPS, describe its five levels of inventive tasks and develops a systematic procedure for its application. A case study is described that details the application from the conceptual design stage to the final inventive design stage.

scholarly journals Design of Eco-Efficient Body Parts for Electric Vehicles Considering Life Cycle Environmental Information

2020 ◽  
Vol 12 (14) ◽  
pp. 5838
Author(s):  
Lars Reimer ◽  
Alexander Kaluza ◽  
Felipe Cerdas ◽  
Jens Meschke ◽  
Thomas Vietor ◽  
...  
Keyword(s):  
Life Cycle ◽  
Conceptual Design ◽  
Electric Vehicles ◽  
Ghg Emissions ◽  
Torsional Stiffness ◽  
Design Stage ◽  
Body Parts ◽  
Electricity Mix ◽  
Use Phase ◽  
Structural Parts

The reduction of greenhouse gas (GHG) emissions over the entire life cycle of vehicles has become part of the strategic objectives in automotive industry. In this regard, the design of future body parts should be carried out based on information of life cycle GHG emissions. The substitution of steel towards lightweight materials is a major trend, with the industry undergoing a fundamental shift towards the introduction of electric vehicles (EV). The present research aims to support the conceptual design of body parts with a combined perspective on mechanical performance and life cycle GHG emissions. Particular attention is paid to the fact that the GHG impact of EV in the use phase depends on vehicle-specific factors that may not be specified at the conceptual design stage of components, such as the market-specific electricity mix used for vehicle charging. A methodology is proposed that combines a simplified numerical design of concept alternatives and an analytic approach estimating life cycle GHG emissions. It is applied to a case study in body part design based on a set of principal geometries and load cases, a range of materials (aluminum, glass and carbon fiber reinforced plastics (GFRP, CFRP) as substitution to a steel reference) and different use stage scenarios of EV. A new engineering chart was developed, which helps design engineers to compare life cycle GHG emissions of lightweight material concepts to the reference. For body shells, the replacement of the steel reference with aluminum or GFRP shows reduced lifecycle GHG emissions for most use phase scenarios. This holds as well for structural parts being designed on torsional stiffness. For structural parts designed on tension/compression or bending stiffness CFRP designs show lowest lifecycle GHG emissions. In all cases, a high share of renewable electricity mix and a short lifetime pose the steel reference in favor. It is argued that a further elaboration of the approach could substantially increase transparency between design choices and life cycle GHG emissions.

Shaping of Spherical Joints in Space Structures

1988 ◽  
Vol 3 (3) ◽  
pp. 171-183 ◽  
Author(s):  
Tomasz Arciszewski ◽  
Kalu Uduma
Keyword(s):  
Working Memory ◽  
Expert System ◽  
Conceptual Design ◽  
Design Method ◽  
Space Structures ◽  
Trial And Error ◽  
Innovative Design

This paper discusses the conceptual design of spherical joints in space structures. Known spherical joints were analyzed and six innovative shaping concepts identified. The analysis revealed general tendencies in the shaping of spherical joints over a period of more than 15 years. Also, a surprising “human innovation limit”, supposedly related to the limits of “human working memory”, was observed. A formal typology of spherical joints is proposed and discussed in the context of innovative design. Three different approaches are considered: traditional, trial-and-error, and application of a computer-oriented innovative design method called Stochastic Form Optimization, and utilization of learning expert system shells for conceptual design.

scholarly journals Integrated TRIZ-AHP Support System for Conceptual Design

2014 ◽  
Vol 548-549 ◽  
pp. 1998-2002 ◽  
Author(s):  
M.U. Rosli ◽  
M.K.A. Ariffin ◽  
S.M. Sapuan ◽  
S. Sulaiman
Keyword(s):  
Problem Solving ◽  
Conceptual Design ◽  
Support System ◽  
Material Selection ◽  
Problem Definition ◽  
Design Stage ◽  
Root Cause ◽  
Solution Generation ◽  
Computer Based ◽  
Root Cause Identification

.Amid the fierce rising competition in the market, accelerating the problem solving and decision making process have become major issues in product design especially in conceptual design stage. For years, Theory of Inventive Problem Solving (TRIZ) has been extensively applied in problem solving. In this paper, Analytical Hierarchy Process (AHP) was proposed to strengthen three major steps in TRIZ methodology namely as problem definition, root cause identification and solution generation. The integration was then structured in the form of computer-based system. The integration, application and software in AHP and TRIZ method have been discussed in this paper. This proposed support system not only provided evidence that TRIZ methodologies improved by the support of AHP and also aided the designers in early design phase such as concept, process and material selection.

QUINT: A Problem-Solving Strategy for Mechanical System Conceptual Design: Part I — Environment, Function, Structure, and Parameter

1990 ◽  
Author(s):  
Wang Qun ◽  
Yang Haibin ◽  
Zhou Ji ◽  
Yu Jun
Keyword(s):  
Expert System ◽  
Problem Solving ◽  
System Design ◽  
Mechanical System ◽  
Conceptual Design ◽  
General Scheme ◽  
Scheme Design ◽  
Design Expert ◽  
Problem Solving Strategy ◽  
Solving Strategy

Abstract Mechanical system conceptual design, sometimes termed mechanical system scheme design or preliminary mechanical system design, is the key link of mechanical system design, and also the bottleneck of integrated CAD / CAM [1][2][3]. Therefore, it is important to automize this part of work to promote the quality of mechanical system design and the extent of product design automation. This paper will discuss in detail a problem-solving strategy for mechanical system conceptual design — QUINT. It devides the conceptual design into five stages: (1) environment ▸ function; (2) function ▸ structure; (3) structure ▸ parameters; (4) parameters ▸ analysis; (5) analysis ▸ evaluation and decision. QUINT has already been successfully applied in CDESTOOL (Conceptual Design Expert System TOOL). With this tool, three practical systems have been developed: industrial turbine general scheme design expert system (TDES), wheel loader general scheme design expert system (WLDES), and milling-boring machining center scheme design expert system (MDES). The result is fairly satisfactory.

Effectiveness of Problem Solving Software in Engineering Conceptual Design

2012 ◽  
Author(s):  
Zbigniew M. Bzymek ◽  
Yang Xu
Keyword(s):  
Problem Solving ◽  
Engineering Design ◽  
Conceptual Design ◽  
Teaching And Learning ◽  
Teaching Effectiveness ◽  
Graduate Courses ◽  
Software Products ◽  
Software Packages ◽  
Problem Solving Process ◽  
The University

The process of generating the most attractive product concepts in engineering design is still one of the greatest challenges of the 21st century. There are several tools for supporting this extremely uncontrollable phase of engineering design. Except for the method, the problem-solving software is the very important tool. One of the most useful methods in teaching and learning, i.e. Brief Theory of Inventive Problem Solving (BTIPS), is discussed in other papers [1], [2], [3] and [4]. This paper is devoted to the software supporting the problem solving process. There is still no software suitable for a completely satisfactory automation of the conceptual design process. However there are some software packages that could be the most helpful in supporting the process and would greatly influence the quality of the final product, especially in cases of contradicting constraints. In this paper some results of the research on the use and effectiveness of Invention Machine (IM™) software products are described. Four packages are discussed and compared: the IM v. 2 for Windows, TechOptimizer v. 3.5, TechOptimizer v. 4.0 and Goldfire v. 6.5. Goldfire v. 6.5 evaluation is still in the process and is not completely finished yet. The first three packages were used in teaching several junior, senior and graduate courses at the University of Connecticut (UConn) for many years. The experience with Goldfire v. 6.5 is comparatively limited. In the research described in this paper the content and the teaching effectiveness of the software packages in teaching were studied. Data from student feedback was evaluated, conclusions were derived. On the basis of this - recommendations for the future use of the software are offered. This paper concentrates on some instrumental software qualities that could be used in teaching of solving problems of industrial products conceptual design. The user’s experience and its connection with the effectiveness of the packages used are discussed in the paper. Conclusions are derived at the end.

Methodology of life cycle cost with risk expenditure for offshore process at conceptual design stage

Energy ◽  
2011 ◽  
Vol 36 (3) ◽  
pp. 1554-1563 ◽  
Author(s):  
Kiil Nam ◽  
Daejun Chang ◽  
Kwangpil Chang ◽  
Taejin Rhee ◽  
In-Beum Lee
Keyword(s):  
Life Cycle ◽  
Conceptual Design ◽  
Life Cycle Cost ◽  
Design Stage ◽  
Conceptual Design Stage
Sign in / Sign up

Export Citation Format

Share Document