A knowledge-based design system for Yunnan-style house floor plans

1992 ◽  
Vol 19 (5) ◽  
pp. 559-571 ◽  
Author(s):  
M Yan
Keyword(s):  
Design System ◽  
Knowledge Based ◽  
Floor Plans ◽  
House Floor ◽  
Knowledge Based Design

A Feature Extraction Interface for CAD Part Models

1991 ◽  
Author(s):  
David R. Nitschke ◽  
Yuh-Min Chen ◽  
R. Allen Miller
Keyword(s):  
Design System ◽  
Relative Positioning ◽  
Neutral Form ◽  
Cad System ◽  
Knowledge Based ◽  
Functional Specification ◽  
Design And Manufacturing ◽  
Feature Based ◽  
The Individual ◽  
Knowledge Based Design

Abstract The concept of “Features” has been recognized as a neutral form of communication between design and manufacturing. Since virtually all CAD systems define part models using B-Rep or CSG formats, a facility is needed to convert geometry based part models to ones which are feature based. This paper outlines the framework of a facility which would enable part models from any type of CAD system to be converted to a format which could be analyzed using a knowledge based design system. This facility relies on the user to recognize and isolate the individual features of the model and then extracts the dimensions, locations and relative positioning of the features within the model. These features are then organized into a feature graph for the construction of a feature based part representation. The procedures for the construction of this part representation include feature instantiation, feature placement and functional specification.

KADS2: A Next Generation Knowledge Aided Design System

1997 ◽  
Author(s):  
William M. McVea ◽  
Kamyar Haghighi
Keyword(s):  
Design Methodology ◽  
System Development ◽  
Design System ◽  
Component Level ◽  
Design Synthesis ◽  
Work Related ◽  
Knowledge Based ◽  
Aided Design ◽  
Use Of Knowledge ◽  
Knowledge Based Design

Abstract Research has been conducted in the areas of design methodology, automation and use of knowledge based systems as a tool to improve the design efficiency, accuracy and consistency for mechanical power transmissions. The research capitalized on previous work related to component level design synthesis and analysis. The next logical step in the research progression was to look into system development and integration of design synthesis and analysis tools. Deliverables from this research include new knowledge acquisition techniques, a more complete model of design information flow and development and a knowledge based design assistant system, capable of integrating multiple discrete and disparate design tools.

Process and Tolerance Considerations in the Automated Design of Fixtures

1994 ◽  
Vol 116 (2) ◽  
pp. 480-486 ◽  
Author(s):  
D. A. King ◽  
A. de Sam Lazaro
Keyword(s):  
Data Structures ◽  
Lead Time ◽  
Design System ◽  
Fixture Design ◽  
Complex Data ◽  
Cad System ◽  
Knowledge Based ◽  
Modern Manufacturing ◽  
Interactive Session ◽  
Knowledge Based Design

The long lead time for jig and fixture design is a serious bottleneck in modern manufacturing. Efforts to automate the design process using intelligent CAD systems have not been taken beyond the prototype stage mainly because of several impediments. These include the requirement of complex data structures to represent the workpiece and its attributes. Two deficiencies in existing systems for fixture design are addressed. These are (a) design for a sequence of operations and (b) design with tolerance considerations. Tolerance and process specifications are obtained from the user during an interactive session. A knowledge-based design system, REFIX, then designs a fixture for the workpiece. The fixture is optimized for a particular datum specification and sequence of operations. It is then analyzed and presented via the CAD system. REFIX is automated to minimize user-induced errors.

Knowledge Representation Method of Product Principle Solution Based on Semantic Network Model

2010 ◽  
Vol 34-35 ◽  
pp. 1865-1869
Author(s):  
Xiao Ying Chen ◽  
Bin He
Keyword(s):  
Knowledge Representation ◽  
Network Model ◽  
Semantic Network ◽  
Design System ◽  
Product Knowledge ◽  
Knowledge Based ◽  
Principle Solution ◽  
Representation Method ◽  
Semantic Object ◽  
Knowledge Based Design

Product design is a problem-solving activity based on knowledge. This paper is devoted to presenting a systematic knowledge representation method of principle solution based on semantic network model. For the expression of product knowledge, the semantic object, constraints and their relationships among the expression of the semantic object network model are proposed step by step. Then the principle solution representation model based on semantic network model is put forwards. The knowledge representation of a car is given as an example, which demonstrates that this method is obviously helpful for knowledge-based design system and product innovation.

Rapid Design System for Agricultural Machinery Using Knowledge-Based Engineering: Case Study of a Wheeled Combine Chassis

2020 ◽  
Vol 63 (4) ◽  
pp. 955-966
Author(s):  
Shenghui Fu ◽  
Tianran Lan ◽  
Yuefeng Du ◽  
Enrong Mao ◽  
Zhongxiang Zhu ◽  
...  
Keyword(s):  
Object Oriented ◽  
Knowledge Utilization ◽  
Design System ◽  
Design Knowledge ◽  
Agricultural Machinery ◽  
Knowledge Based ◽  
Rapid Design ◽  
Design Of Agricultural Machinery ◽  
Knowledge Based Engineering ◽  
Knowledge Based Design

HighlightsA knowledge-based rapid design system for combine chassis is proposed.Object-oriented knowledge representation uniformly describes the multi-source heterogeneous design knowledge.Multivariate linear regression analysis ratiocinates further unknown design principles behind existing products.Abstract. In the design of agricultural machinery, the lack of systematic and structured knowledge utilization systems results in low development efficiency and poor reusability of design knowledge. This study considers the design of a combine chassis and focuses on the application of knowledge-based rapid design to agricultural machinery. As a typical sophisticated agricultural machine, combines have a complicated design that requires the integration of multiple disciplines according to the crop types, production areas, and ability of the designers. Hence, a knowledge-based design system for a wheeled combine chassis is proposed. By integrating object-oriented technology with a mixed reasoning strategy, multi-source heterogeneous design knowledge can be applied in completing the chassis design task. To date, there are more than 2000 design ideas and 350 parameter models in the knowledge database. In addition, tacit design knowledge acquired by a knowledge discovery method can be employed to perfect the design and improve the reliability of the product. The design of a combine chassis demonstrates that the knowledge-based rapid design of agricultural machinery is completely feasible, and the design system significantly reduces the design workload, shortens the development cycle, and improves design efficiency and knowledge utilization. Keywords: Combine chassis, Knowledge-based design system, Knowledge-based engineering, Rapid design.

Linking a CAD System to an Expert System: A Step Towards a Knowledge-Based Design System for Mechanisms

1994 ◽  
Author(s):  
Wolfram Funk ◽  
Rudolf Kinzinger
Keyword(s):  
Expert System ◽  
Design Process ◽  
Computer Support ◽  
Design System ◽  
Knowledge Based Systems ◽  
Cad System ◽  
Knowledge Based ◽  
System A ◽  
Knowledge Based Design ◽  
Conventional Computer

Abstract The design process can be divided into different phases. The best order in which the designer should execute these steps remains difficult to predict. In principle, conventional computer programs can only be applied to problems for which algorithms are available. Therefore, in many fields the design process did not allow computer support. The technology of knowledge-based systems has led to new perspectives. However, knowledge-based systems can only be utilized if the well-established design aid, CAD system, is integrated into the concept of knowledge-based computer support. Conceptual considerations and new approaches to linking a CAD system to an expert system, which assists the designer in solving kinematic problems, especially in the conceptual phase, are presented.

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