A Feature-Based Approach for Representing Composite Components

Materials Research ◽

Feature Based ◽

The progress with which composite materials are being used in industry has been staggering. The methods, processes and procedures of developing and manufacturing composite materials have always been the center stage for the composite materials research and applications. While feature technologies, in particular feature-based design, have been widely practiced by many in the areas of designing and manufacturing conventional materials, one has not yet seen it help to reap the benefits for composite materials manufacturing. This paper proposed a feature-based approach for representing composite components. Two types of features have been defined, structural and geometrical. Based on the suggested approach toward representing features on a composite component, a concurrent engineering kernel is being developed, in which design and manufacturing of composite manufacturing come together seamlessly to enable a complete product development environment for composite material design and manufacturing.

Design of Products for an Agile Manufacturing Environment

ASME 1994 International Computers in Engineering Conference and Exhibition ◽

10.1115/cie1994-0426 ◽

1994 ◽

Author(s):

Andrew Kusiak ◽

Chang-Xue Feng

Keyword(s):

Concurrent Engineering ◽

Cost Effective ◽

Setup Time ◽

Agile Manufacturing ◽

Manufacturing Companies ◽

Basic Principles ◽

Feature Based ◽

Lot Sizes ◽

Abstract Many manufacturing companies have been striving to reduce setup times in order to produce smaller lot sizes and to obtain quicker responses to frequently changing market demands. This paper focuses on the reduction of setup time by design improvements of products. Based on the basic principles of setups and concepts from concurrent engineering, rules for design of products at the feature level are presented. Examples and computational results illustrate that the inter-lot setups and in-lot setups can be reduced by the feature-based design rules. The proposed approach for setup reduction appears to be more cost effective than optimizing the processes and operations where the product designs have been fixed. This research intends to bridge the gap between engineering design and manufacturing.

A Manufacturability Evaluation and Improvement System

3rd International Conference on Design Theory and Methodology ◽

10.1115/detc1991-0051 ◽

1991 ◽

Author(s):

Nicholas J. Yannoulakis ◽

Sanjay B. Joshi ◽

Richard A. Wysk

Keyword(s):

Life Cycle ◽

Concurrent Engineering ◽

Knowledge Bases ◽

Machining Parameters ◽

Life Cycle Design ◽

Machined Parts ◽

Feature Based ◽

Feature Based Design ◽

Manufacturability Evaluation ◽

Quantitative Indicators

Abstract The increasing application of CAE has lead to the evolution of Concurrent Engineering — a philosophy that prescribes simultaneous consideration of the life-cycle design issues of a product. The Concurrent Engineering (CE) systems that have been developed so far have relied on knowledge bases and qualitative evaluations of a part’s manufacturability for feedback to the design engineer. This paper describes a method for developing quantitative indicators of manufacturability. Feature-based design and estimation of machining parameters are used for ascertaining a part’s manufacturing requirements. These requirements are then combined into indices which lead the designer to features that must be redesigned for improved manufacturability. This method is illustrated on a system for rotational machined parts: the Manufacturability Evaluation and Improvement System (MEIS).

Lecture Notes in Computer Science - Computer-Aided Cooperative Product Development ◽

Feature-based design for manufacturability critique in concurrent engineering

10.1007/bfb0014288 ◽

2005 ◽

pp. 393-410 ◽

Cited By ~ 2

Author(s):

Rajit Gadh ◽

Donna Herbert ◽

Alexander Kott ◽

Charles Kollar

Keyword(s):

Concurrent Engineering ◽

Design For Manufacturability ◽

Feature Based ◽

Manufacturing feature extraction and machined volume decomposition in a computer-integrated feature-based design and manufacturing planning environment

Computers in Industry ◽

10.1016/0166-3615(93)90117-j ◽

1993 ◽

Vol 23 (1-2) ◽

pp. 75-86 ◽

Cited By ~ 7

Author(s):

Ming-Tzong Wang ◽

Marcella A. Chamberlain ◽

Ajay Joneja ◽

Tien-Chien Chang

Keyword(s):

Feature Extraction ◽

Manufacturing Planning ◽

Volume Decomposition ◽

Feature Based ◽

Feature Based Design ◽

Manufacturing Feature

FDDL: A Feature Based Design Description Language

1st International Conference on Design Theory and Methodology ◽

10.1115/detc1989-0007 ◽

1989 ◽

Author(s):

P. H. Gu ◽

H. A. ElMaraghy ◽

L. Hamid

Keyword(s):

Computer Aided Design ◽

Ease Of Use ◽

Feature Representation ◽

Planning System ◽

Mechanical Assembly ◽

Description Language ◽

Feature Based ◽

Representation Scheme ◽

Abstract This paper presents the development of a new high-level design language called Feature based Design Description Language — FDDL. The traditional and computer-aided design and manufacturing procedures were analyzed and the important gaps between CAD and CAM have been identified. These include the lack of uniform representation of parts and products, and lack of effective links between CAD and CAM. The FDDL is proposed and designed in association with a feature representation scheme as a means of integrating design and manufacturing tasks planning. Its syntax, semantics and vocabulary have been defined taking into consideration ease of use, compatibility with engineering terminology and ease of computer implementation. The FDDL system consists of a number of lexical analyzers, a parser and three code generators. Once the products or parts modeled using FDDL or the feature based modeler are processed by the FDDL system, syntax error free input files are created for use by manufacturing task planning systems. The FDDL has been applied to a feature based cellular manufacturing planning system, an expert automated CMM inspection task planner, and a mechanical assembly sequence planner.