scholarly journals Development Of A Feature Based Rapid Design Environment

2020 ◽  
Author(s):  
Utpal Roy ◽  
Daniel Panayil
Keyword(s):  
Design Environment ◽  
Rapid Design ◽  
Feature Based

Web-Enabled Feature-Based Modeling in a Distributed Design Environment

1999 ◽  
Author(s):  
Jae Yeol Lee ◽  
Hyun Kim ◽  
Sung-Bae Han
Keyword(s):  
Collaborative Design ◽  
Feature Modeling ◽  
Feature Model ◽  
Internet Technology ◽  
Global Network ◽  
Dynamic Feature ◽  
Distributed Design ◽  
Product Modeling ◽  
Design Environment ◽  
Feature Based

Abstract Network and Internet technology open up another domain for building future CAD/CAM environments. The environment will be global, network-centric, and spatially distributed. In this paper, we present Web-enabled feature-based modeling in a distributed design environment. The presented approach combines the current feature-based modeling technique with distributed computing and communication technology for supporting product modeling and collaborative design activities over the network. The approach is implemented in a client/server architecture, in which Web-enabled feature modeling clients, neutral feature model server, and other applications communicate with one another via a standard communication protocol. The paper discusses how the neutral feature model supports multiple views and maintains naming consistency between geometric entities of the server and clients as the user edits the part in a client. Moreover, it explains how to minimize the network delay between the server and client according to dynamic feature modeling operations.

Representing Tolerance and Assembly Information in a Feature-Based Design Environment

1991 ◽  
Author(s):  
Rajneet Sodhi ◽  
Joshua U. Turner
Keyword(s):  
User Interface ◽  
Design Environment ◽  
Assembly Design ◽  
Assembly Features ◽  
Feature Based ◽  
The Creation ◽  
High Level ◽  
Feature Based Design

Abstract This paper describes a strategy for representing tolerance information and assembly information in a feature-based design environment. The concept of designing with features is extended to incorporate the specification of tolerance information. This allows appropriate tolerancing strategies to be provided within the feature definitions themselves. Thus a closer connection is formed between features and the functional intent implicit in their use. The concept of designing with features is also extended to incorporate the specification of assembly information, through the use of assembly features which provide a high-level user interface for the creation and modeling of assemblies, and which handle the identification and creation of mating relations between components. Several examples of component and assembly design using this extended feature-based approach are presented.

Design Modification in a Collaborative Assembly Design Environment

2005 ◽  
Vol 6 (2) ◽  
pp. 200-208 ◽  
Author(s):  
C. Lu ◽  
J. Y. H. Fuh ◽  
Y. S. Wong ◽  
Z. M. Qiu ◽  
W. D. Li ◽  
...  
Keyword(s):  
Control Mechanism ◽  
The Internet ◽  
Design Environment ◽  
Detailed Design ◽  
Design Modification ◽  
Assembly Design ◽  
Geographically Dispersed ◽  
Collaborative Assembly ◽  
Feature Based

This paper discusses the design modification issue in a collaborative assembly (co-assembly) design environment, which enables multiple geographically dispersed designers to design and assemble parts collaboratively and synchronously through the Internet. An assembly representation model, viz. feature-based hierarchical co-assembly representation, is proposed to resolve the co-assembly design issues. In order to realize the design modification, a design modification propagation control mechanism is proposed. A system framework that is suitable for realizing the design modification is also proposed and developed. Finally, the detailed design modification propagation control mechanism is demonstrated through a case study.

Purely Declarative Feature-Based Design With Feature Type Property Maintenance

2004 ◽  
Author(s):  
Dhaval Lokagariwar ◽  
Bernhard Bettig
Keyword(s):  
Design Process ◽  
Research Work ◽  
Building Blocks ◽  
Feature Representation ◽  
Software Systems ◽  
Design Environment ◽  
Design Features ◽  
Planning Algorithm ◽  
Feature Based ◽  
Feature Based Design

Commercial feature-based design systems are based on describing the design model in some form of sequential representation of primitive shapes and operations called features. In these systems, the overall design process, the behavior of building blocks and the characteristics of the final model, are governed by the construction sequence. These systems do not check for the conformity of the final shape with the actual design intent of features, and allow their design and engineering intent to be altered during the design process. The research work presented here describes a new design methodology and feature representation for facilitating a design environment that is independent of any construction order or constraint-based dependencies and provides a mechanism for maintaining design and engineering intent of the design features. The methodology works by dynamically evaluating the features using a planning algorithm such that the validity of each feature is maintained. These are intended to serve as a generic template that can be used to design and develop specific design features and CAD software systems.

Features As an Abstraction for Designer Convenience in the Design of Complex Products

2000 ◽  
Author(s):  
Joshua D. Summers ◽  
Douglas Maxwell ◽  
Christopher Camp ◽  
Alley C. Butler
Keyword(s):  
User Interfaces ◽  
Early Stage ◽  
Research Effort ◽  
Object Oriented ◽  
Object Oriented Programming ◽  
Design Environment ◽  
Cad Systems ◽  
Complex Products ◽  
Two Generations ◽  
Feature Based

Abstract This paper reports on a research effort involving design of a class of significantly complex products — nuclear submarines. It focuses on the use of features as a means of design abstraction, and it is found that a principal motivation for the use of features in this design environment is the convenience of the early stage submarine designer. To support this argument, a review of feature research is presented. Experiments in the development of feature catalogs are described, and implementation through two generations of feature based submarine CAD systems are discussed. The architecture of the feature based submarine CAD systems includes the use of Microsoft Foundation Classes (MFC), the ACIS geometric modeler, and user interfaces which store/recall hierarchical submarine feature information easily. Strong connections to object-oriented programming and object-oriented databases are recognized. Conclusions are drawn regarding the use of features for designer convenience and regarding support provided by hierarchical, parameterized features for other means of design automation.

Methodology and Implementation of Dynamic Design Advisor (DDA) in a Feature-Based System

1999 ◽  
Author(s):  
Tridip K. Bardhan ◽  
Venkat N. Rajan ◽  
Abu S. M. Masud
Keyword(s):  
Design Stage ◽  
Design Environment ◽  
Regular Feature ◽  
Part Geometry ◽  
Advisory System ◽  
Systematic Methodology ◽  
Feature Based ◽  
Feature Based Design ◽  
Pipeline Design ◽  
First Time

Abstract Designing right the first time decreases cost significantly. If requirements of downstream activities could be considered during conceptual design, fewer changes would be required later. A design advisory system can provide enough information to the designer to achieve this goal of designing right at the conceptual stage. A systematic methodology for design advising in a feature-based design environment is developed to identify problems at the design stage, and provide the designer the opportunity to correct them. Five pre-conditions are also identified for this methodology. During the development of the part geometry, a multi-digit code is added to every feature. Based on the code, all applicable design rules are checked as constraints and in case of constraint violation, suggestions are generated and presented to the designer. During the design process, the designer can check a design rating, generated from the extent to which the constraints are satisfied. An example session is also presented to illustrate the ten steps of this method. To validate the developed methodology, a DDA system for pipeline design is developed in an actual industrial application. Effectiveness of the DDA methodology is analyzed by comparing the designers’ performance using the feature-based DDA system with performance using a regular feature based system. The performance measures used are: the number of errors in a design and the time taken to complete the design. Statistical results indicate that designers perform better with the DDA system in terms of fewer errors and less time to design.

Feature-Based Assembly Design: Concepts and Design Environment

1997 ◽  
Author(s):  
Monica Bordegoni ◽  
Umberto Cugini
Keyword(s):  
Research Work ◽  
The European Union ◽  
Design Environment ◽  
Design Concepts ◽  
Assembly Design ◽  
Part Geometry ◽  
Mechanical Assemblies ◽  
Feature Based ◽  
Work Done ◽  
Mating Conditions

Abstract The design of mechanical assemblies is mainly done after having modeled single parts. Most of the CAD systems are still weak for what concerns assembly. For example, they do not support the manipulation or the modification of the part geometry or the mating conditions once the assembly is made. The introduction of a feature-based approach in assembly design, successfully used in the design of single parts, would offer several advantages. This paper describes some results of the research work done within a project funded by the European Union aiming at extending the use of features, to help in the solution of assembly problems in the aeronautical applications.

Representing and Recognizing Features in Mechanical Designs

1990 ◽  
Author(s):  
Susan Finger ◽  
Scott A. Safier
Keyword(s):  
Graph Grammars ◽  
Design Environment ◽  
Geometric Models ◽  
Feature Based ◽  
Geometric Representations ◽  
Design Systems ◽  
High Level ◽  
Feature Based Design ◽  
Structural Engineers ◽  
Rough Surface Finish

Abstract When experts view an object, they perceive it in terms of their own expertise. For example, manufacturers see features that affect the processes used to fabricate a part, while structural engineers see sources of stresses and other features that tend to reduce the life of a part. Features can be geometric, such as slots or chamfers; they can be quantitative, such as distances between holes; they can be functional, such as alignment; or they can be qualitative, such as a rough surface finish. Research in feature-based design systems for mechanical designers has been motivated by the realization that geometric models represent the design in greater detail than can be utilized by designers, process planners, assembly planners, or by systems that emulate these activities. Features provide abstractions to facilitate the creation, representation, and analysis of designs. Our goal is to enable designers to compose mechanical designs from high-level features that embody functional and geometric properties. In addition, we want to provide designers with feedback on the manufacturability, assemblability, functionality, cost, etc. of the design as it evolves. To support this process in an intelligent CAD environment requires the integration of geometric models, analysis tools, and synthesis tools so that all aspects of the design can be considered while it is in progress. We are developing a design environment based on a shared representation of the design in which we can extract and reason about features of the design from different perspectives. Our approach is to represent both the design and the features using graph grammars. By representing the features using the same grammar as the design, we can recognize features by parsing a feature against the graph that represents the design. We are exploring grammars for behavior as well as geometry in order to provide a link between behavioral and geometric representations. In this paper, we focus on the representation and recognition of features.

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