scholarly journals RAPID DESIGN OF MAIZE EAR HARVESTER HEADER BASED ON KNOWLEDGE ENGINEERING

2020 ◽  
Vol 61 (2) ◽  
pp. 263-272 ◽  
Author(s):  
Tai Jianjian ◽  
Li Haitao ◽  
Du Yuefeng ◽  
Mao Enrong ◽  
Zhang Junnan ◽  
...  
Keyword(s):  
Design Process ◽  
Knowledge Engineering ◽  
Design Method ◽  
Design System ◽  
Design Knowledge ◽  
Agricultural Machinery ◽  
Design And Development ◽  
Rapid Design ◽  
Combine Harvester ◽  
Maize Ear

In the design process of maize combine harvester in China, there are characteristics of customization and high demand for diversification. Aiming at the problems of long design and development cycle, the structural design method of maize combine harvester header based on knowledge engineering is put forward, and the header of maize combine harvester is designed rapidly. Firstly, based on the design standards and specifications of agricultural machinery, the general design process of maize ear harvester header is determined. Secondly, according to the design knowledge and experience, the design method of the core parts of the header is determined, and an example model is established. Finally, based on the platform of MFC and Creo, integrating the design knowledge base, inference engine and parametric model, a rapid design system of maize ear harvester header is constructed. The rapid design of maize ear harvester header is realized, and the design and development efficiency of maize ear harvester header is improved so as to provide technical reference and support for improving the intelligent level of typical complex agricultural machinery equipment in China.

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.

Design and Implementation of Point Symbol Database Based on ArcGIS Engine

2012 ◽  
Vol 263-266 ◽  
pp. 1853-1857
Author(s):  
Mao Lin Wang ◽  
Ai Jun Xu
Keyword(s):  
Design Process ◽  
Design Method ◽  
Word Type ◽  
Design Framework ◽  
Design And Development ◽  
Design And Implementation ◽  
Arcgis Engine ◽  
Point Symbol

In this article, geometric primitive approach is used to realize the design and development of point symbol database for mapping based on C# .NET and ArcGIS Engine. This paper presents the design framework and the design process of point symbol database, and studies design method and attribute management of point symbol, especially the design of point symbol attribute of word type of TrueType, which makes conveniently the point symbol for special map users needed.

A Novel Structure Design Method Based on Knowledge Template

2012 ◽  
Vol 159 ◽  
pp. 18-22
Author(s):  
Rui Song Jiang ◽  
Xin Fa Chen ◽  
Da Yong Feng ◽  
Feng Jun Wang
Keyword(s):  
Turbine Blade ◽  
Design Process ◽  
Investment Casting ◽  
Design Method ◽  
Structure Design ◽  
Design System ◽  
Construction Methods ◽  
Novel Structure ◽  
Base Design

In this study, a novel structure design method based on knowledge template was prompted. The notion and construction methods of knowledge template were introduced. Moreover, the knowledge template based design process was represented. The knowledge templates of investment casting die bases of turbine blade were established and a design system for die base was developed. The system provides designers with a semi-automated approach for the die base design. Finally, several sample applications for investment casting die base of turbine blade were presented for demonstration.

System Design of Cam Mechanism Based on Fellower Structure and General Kinematic Laws

2010 ◽  
Vol 42 ◽  
pp. 219-223
Author(s):  
Liang Wen Wang ◽  
An Sheng Li ◽  
Duan Qin Zhang ◽  
Wei Gang Tang
Keyword(s):  
System Design ◽  
Design Process ◽  
Program Design ◽  
Parametric Design ◽  
Design Method ◽  
Mathematic Model ◽  
Design System ◽  
Cam Mechanism ◽  
The Law ◽  
General Motion

According to the different fellower structure and general simple trapezoid motion law of cam mechanism, this paper established a mathematic model for the motion of fellower structure of cam mechanism. The design method of motion law of the fellower structure was introduced, and the law of motion transition of fellower system and the related issues with program design were studied. A design system was developed using VB code based fellower structure and general motion laws. And the system could solve the curve of motion law for the fellower system and the eigenvalue of the curve, and finally realize parametric design of motion law for the fellower structure of cam mechanism. And the system could calculate and output the coordinate of cam configuration, and improve the digitized design process of cam parametric. The interface of the designed system is friendly and convenient, and the system could be used in both engineering and teaching.

scholarly journals SUPREME: Submarine Space Partitioning in Rhino by Quaestor3

2018 ◽  
Author(s):  
M Th van Hees ◽  
W H van den Broek-de Bruijn
Keyword(s):  
Weight Management ◽  
Knowledge Engineering ◽  
High Accuracy ◽  
Design System ◽  
Design Knowledge ◽  
Topological Representation ◽  
Weight Estimation ◽  
Space Partitioning ◽  
Design Data ◽  
Cad System

Within the scope of the Royal Netherlands Navy’s Walrus class replacement programme, DMO embarked in 2015 in developing a set of tools to generate and assess submarine concept designs. MARIN took up the challenge to develop a design workflow SUPREME on the basis of its Quaestor3 knowledge engineering framework [van Hees 1997, 2003, 2009]. Within this workflow a number of proprietary and often confidential tools should be plugged in to perform e.g. propulsion system dimensioning, weight estimation and for assessment of trimming and compensation capabilities. These ‘satellite’ tools are mostly developed for, or by, DMO. As a design system, SUPREME becomes fully operational at DMO where workflow and proprietary tools come together. The developmental focus of MARIN is the SUPREME workflow which deals with design knowledge representation and design data management. The two major challenges in its development were the topological representation and the weight management methodology. This paper will discuss the first one, the development of a submarine topological representation using the CAD system RhinocerosTM as externally controlled geometry generator. This combines high accuracy with adaptability and enables naval architects to constantly monitor the weight and volume balances and trimming / compensation capabilities of concept submarines already in the earliest stages of design.

scholarly journals Formalization of Low-frequency Rectangular Electrical Connectors Design Method

2019 ◽  
Author(s):  
Владимир Аверченков ◽  
Vladimir Averchenkov ◽  
Алексей Вилюха ◽  
Alexey Viluykha ◽  
Михаил Рытов ◽  
...  
Keyword(s):  
Design Process ◽  
Design Method ◽  
Low Frequency ◽  
Empirical Method ◽  
Design System ◽  
Development Trends ◽  
Technological Preparation ◽  
Cad Cam ◽  
The Moment ◽  
Electrical Connectors

The article deals with the design process of low-frequency rectangular electrical connectors and determining the position CAD/CAE-systems in it. The review of the actual literature shows that development trends of design and technological preparation of low-frequency rectangular electrical connectors production mean using CAD/CAM/CAE-systems. But at the moment these systems are used for solving partial issues. The authors formalize the empirical method of the design and systemize the factors, which influence the design process. As a result of the mentioned above actions, the working algorithm of the multipurpose CAD/CAE electrical connectors design system was obtained. The results of the research were applied to automize the design process of connectors housings.

Study on Automobile Welding Jig Rapid Design System Based on Parametric Technology

2010 ◽  
Vol 156-157 ◽  
pp. 396-399
Author(s):  
Zhi Hua Sha ◽  
Cui Cui Chen ◽  
Sheng Fang Zhang ◽  
Zheng Liu ◽  
Jun Feng Mao
Keyword(s):  
Parametric Design ◽  
Design Method ◽  
Secondary Development ◽  
Design System ◽  
Production Cycle ◽  
Rear Side ◽  
Generation Process ◽  
Rapid Design ◽  
Development Cycle ◽  
Development Approach

As the core of automotive welding production line, the development speed and quality of automotive welding jig impact on the automobile production cycle and manufacturing precision directly. At present, the traditional design method of automotive welding jig is difficult to adapt to the developing speed of auto body. In order to improve the design efficiency of the welding jig, a rapid automobile welding jig design method based on parametric technology is developed in this paper. Supported by parametric theory, combining with CATIA secondary development approach, the principle and structure of the automobile welding jig rapid design system are presented, and related key technologies in rapid design system developing are studied deeply, and a rapid welding jig parametric design system is developed finally. Taking one station of rear side member for example, the generation process of automotive welding jig is analyzed in detail, and design practice shows: the welding jig designed by this system has shorter development cycle then the traditional method.

itSIMPLE: towards an integrated design system for real planning applications

2013 ◽  
Vol 28 (2) ◽  
pp. 215-230 ◽  
Author(s):  
Tiago S. Vaquero ◽  
José R. Silva ◽  
Flavio Tonidandel ◽  
J. Christopher Beck
Keyword(s):  
Design Process ◽  
Knowledge Engineering ◽  
Unified Modeling Language ◽  
Real Life ◽  
Integrated Design ◽  
Design System ◽  
Detailed Knowledge ◽  
Ai Planning ◽  
Subsequent Transformation ◽  
Life Problems

AbstractSince the end of the 1990s, there has been an increasing interest in the application of artificial intelligence (AI) planning techniques to solve real-life problems. In addition to characteristics of academic problems, such as the need to reason about actions, real-life problems require detailed knowledge elicitation, engineering, and management. A systematic design process in which Knowledge and Requirements Engineering tools play a fundamental role is necessary in such applications. One of the main challenges in such design process, and consequently in the study of Knowledge Engineering in AI planning, has been the analysis of requirements and their subsequent transformation into an input-ready model for planners. itSIMPLE is a research project dedicated to the study of a project process to support the design phases of real-life planning models. In this paper, we give an overview of itSIMPLE focusing on the main translation processes among a minimal set of representations: from requirements represented in Unified Modeling Language (UML) to Petri Nets and from UML models to planning domain definition language for problem solving.

Parametric Design Model of Disc-Scoop-Type Metering Device Based on Knowledge Engineering

2013 ◽  
Vol 834-836 ◽  
pp. 1432-1435
Author(s):  
Yu Yang
Keyword(s):  
Design Theory ◽  
Parametric Design ◽  
Knowledge Engineering ◽  
Design Method ◽  
Design System ◽  
Specific Design ◽  
Knowledge Based ◽  
Framework Model ◽  
Design Cycle ◽  
Machinery Design

Traditional agricultural machinery design methods usually go through longer-design cycle and can hardly make good use of existing knowledge and experience. In view of this problem, parametric design theory and knowledge-based engineering were applied to the disc-scoop-type metering device designed to improve the design experience and reuse design knowledge. Through the knowledge-based parametric design method, the design framework model of disc-scoop-type metering device was put forward. The knowledge library on the basis of design rules and characteristic similarity-based case library were created, and disc-scoop-type metering device parametric design system based on knowledge had been developed on the platform of Pro/Engineering. The rapid design for knowledge-driven model of disc-scoop-type metering device was realized. The specific design examples clearly indicated that the establishment of the system considerately improved the quality and efficiency of the design.

A Case Retrieval Method in Case-Based Fixture Design

2012 ◽  
Vol 586 ◽  
pp. 282-287
Author(s):  
Yun He ◽  
Fa Ping Zhang ◽  
Zhan Chun Sun ◽  
Bo Gao ◽  
Juan Han
Keyword(s):  
Design Process ◽  
Design System ◽  
Design Knowledge ◽  
Fixture Design ◽  
Retrieval Method ◽  
Weighted Algorithm ◽  
Previous Design ◽  
Semantic Attribute ◽  
Cbd Method ◽  
Case Based

Most fixture design process are based on the reuse of the previous design knowledge and experience, in this paper, we use a case-based design (CBD) method to design fixture. Based on the analysis of various CBD methods, we found that most methods used to calculate the similarity between new part and cases are too single, so we put forward a method combining the semantic attribute similarity and the shape similarity together, use a weighted algorithm to calculate the similarity. Using this method, we designed a Fixture Design System on CATIA V5 R19, and use this system to retrieve and design fixture, the retrieved results are more close to the new part and reusable, the design process is more efficient.

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