Integrating DFX Tools With Computer-Aided Design Systems

1998 ◽  
Author(s):  
Uma-Sankar Kalyan-Seshu ◽  
Bert Bras
Keyword(s):  
Life Cycle ◽  
Computer Aided Design ◽  
Design Guidelines ◽  
Life Cycle Assessments ◽  
Environmentally Conscious ◽  
Life Cycle Design ◽  
Design Systems ◽  
Environmentally Conscious Design ◽  
Aided Design

Abstract The growing emphasis on environmentally conscious design and manufacturing approaches has placed new burdens on designers. The amount of information available to designers is of great significance in making life cycle assessments on a product. However, well-established commercial CAD systems do not provide means for evaluating most of the different life cycle aspects of the product being modeled. Hence there is a need to have a CAD-environment where the life cycle tools (DFX tools in this work) are integrated with these systems so that life cycle design is made possible. In the research discussed in this paper, the specific focus is to enable the quantification and enhancement of product assemblability, serviceability, recyclability, remanufacturability, de-manufacturability, and life cycle impact during product design. Guidelines for integrating some of the commercially available CAD packages (I-DEAS and Pro/ENGINEER) to these assessment models, and ways to use the input information to some these assessments for making other assessments are developed. A case study is given to illustrate the approach.

A Methodology for Identifying Environmentally Conscious Guidelines for Product Design

2010 ◽  
Vol 132 (9) ◽  
Author(s):  
Cassandra Telenko ◽  
Carolyn Conner Seepersad
Keyword(s):  
Life Cycle ◽  
Reverse Engineering ◽  
Product Design ◽  
Current Knowledge ◽  
Design Guidelines ◽  
Environmentally Conscious ◽  
Current Knowledge Base ◽  
Environmentally Conscious Design ◽  
General Method

A reverse engineering methodology is presented for identifying environmentally conscious design guidelines for use in the conceptual stages of product design. Environmentally conscious principles and guidelines help designers improve environmental impacts of products by making better decisions during conceptual design stages when data for life cycle analysis (LCA) are sometimes scarce. The difficulty in using the current knowledge base of guidelines is that it is not exhaustive and conflicts are not well understood. In response, the authors propose a general method for expanding the current set of guidelines and for understanding potential environmental tradeoffs. The method helps designers extract environmentally conscious design guidelines from a set of functionally related products by combining reverse engineering with LCA. The guidelines and LCA results can then be used to inform subsequent design cycles without repeating the process. Although in environmentally conscious design, reverse engineering is commonly applied to studies of disassembly and recyclability, the methodology and case study herein show how reverse engineering can be applied to the utilization stage of a product’s life cycle as well. The method is applied to an example of electric kettles to demonstrate its utility for uncovering new design guidelines.

Comparison of environmental performance between plastic and steel fuel tanks

2002 ◽  
Vol 216 (11) ◽  
pp. 1443-1457 ◽  
Author(s):  
C-y Tung ◽  
M H Wang
Keyword(s):  
Life Cycle ◽  
Product Design ◽  
Environmental Performance ◽  
Early Stage ◽  
Environmentally Conscious ◽  
Performance Technique ◽  
Life Cycle Design ◽  
Fuel Tanks ◽  
Environmentally Conscious Design ◽  
Whole Life Cycle

Increasing awareness of environmental burdens has led companies and designers to initiate design for the environment (DFE) programmes, which consider the design of products from the ‘cradle to grave’ and is also known as ‘life-cycle design’. In this paper, the use of a novel environmental performance technique to be used at the early stage of product design is presented. This technique, which is to be used as a framework for green product design, is demonstrated in this paper by evaluating the environmental performance between plastic and steel fuel tanks. The fuel tank comparison can be divided into five steps. In the first four steps, a modified house of quality (HOQ) is used to analyse the performance of fuel tanks in terms of requirements of environmentally conscious design. The final step is an overall assessment that synthesizes the results from the previous four analyses. As a result, the comprehensive environmental effects in the whole life cycle of fuel tanks are captured in the early stage of design.

Experiences of Teaching “Life Cycle Design” Course at Tokyo Metropolitan University

Manufacturing ◽  
2003 ◽  
Author(s):  
Yasushi Umeda
Keyword(s):  
Life Cycle ◽  
Manufacturing Industry ◽  
Environmental Issues ◽  
Life Cycle Thinking ◽  
Environmentally Conscious ◽  
Tokyo Metropolitan ◽  
Life Cycle Design ◽  
Teaching Life ◽  
Metropolitan University ◽  
Environmentally Conscious Design

This paper describes the outline of “life cycle design” course the author teaches and illustrates some experiences and findings with results of questionnaires to attendees of the lecture. “Life cycle design” is a half-year course to third-year students at Tokyo Metropolitan University, Japan. The main subject is environmentally conscious design focusing on life cycle thinking. This course intends to establish general and correct viewpoints toward relationship between manufacturing industry and the environmental issues, which are indispensable knowledge as mechanical engineers, rather than to educate environmental specialists. Results of questionnaires indicate that this course succeeded in increasing students’ interest in this area and awareness of importance of the environmental issues. However, some students feel bewildered because of wide variety of topics and, therefore, lack of a central theory.

ISO 14000 and Activity-Based Life-Cycle Assessment in Environmentally Conscious Design and Manufacturing: A Comparison

1998 ◽  
Author(s):  
Jan Emblemsvåg ◽  
Bert Bras
Keyword(s):  
Life Cycle ◽  
Test Case ◽  
Activity Based Costing ◽  
Term Survival ◽  
Life Cycle Assessments ◽  
Environmentally Conscious ◽  
Iso 14000 ◽  
Single Method ◽  
Product And Process ◽  
Environmentally Conscious Design

Abstract As a part of the new ISO 14000 environmental management standard, standards for conducting Life-Cycle Assessments (LCAs) are proposed. In this paper we compare these standards to Activity-Based LCA by using a toy manufacturer called WagonHo!, Inc. as an implementation test case. In this case study, both economical and environmental assessments are made of the product- and process designs. Because the ISO 14000 LCA does not incorporate costing methods, we have used Variable Costing combined with standard times. Activity-Based LCA, on the other hand, combines an Activity-Based Costing (ABC) like method and activity-based environmental impact assessment methods into a single method. The ISO 14000 and Activity-Based LCA are compared with respect to assessment accuracy and how well they indicate areas in need of redesign. Due to the need of short-term survival caused by a severe negative economic result, we will mainly look at process design and market strategies, because product design is a more long-term effort. It is shown that in this case, Activity-Based LCA is superior to ISO 14000 based LCA — possibly in most situations.

Low-fidelity prototyping with simple collaborative tabletop computer-aided design systems

2018 ◽  
Vol 70 ◽  
pp. 307-315 ◽  
Author(s):  
Erdem Kaya ◽  
Sema Alacam ◽  
Yasin Findik ◽  
Selim Balcisoy
Keyword(s):  
Computer Aided Design ◽  
Computer Aided ◽  
Design Systems ◽  
Aided Design

Development of computer-aided design systems for metal-forming processes

1989 ◽  
Vol 21 (3) ◽  
pp. 185
Author(s):  
Y. Mitani ◽  
H.R.R. Merchand ◽  
E. Velazquez
Keyword(s):  
Metal Forming ◽  
Computer Aided Design ◽  
Computer Aided ◽  
Design Systems ◽  
Aided Design
Sign in / Sign up

Export Citation Format

Share Document