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 GENERATIVE DESIGN OF STRUCTURAL STEEL JOINTS

2021 ◽  
Vol 12 (23) ◽  
pp. 22-32
Author(s):  
Anton Kralj ◽  
◽  
Davor Skejić ◽  
Keyword(s):  
Optimal Design ◽  
Design Process ◽  
Structural Design ◽  
Design Method ◽  
Steel Structures ◽  
Structure Design ◽  
Structural Behavior ◽  
Generative Design ◽  
Steel Joints ◽  
Technical Regulations

Structural project is based on technical regulations, structural codes, construction conditions, and client requirements. Through the structural design process, some important decisions that can significantly affect the final result must be implemented. The most important factor for optimal design is the reduction in material and overall work costs. Selecting appropriate joint configurations that can reduce the overall weight and work on the structure is critical. To examine a significant number of possible configurations and their effect on structural behavior, the generative design method (GDM) is used. In this study, software is custom developed, and a relevant example of generative joint structural design is provided. The methodology for the optimal joint and structure design is described comprehensively. The final results show that the GDM is an effective methodology for application in the design of steel structures.

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.

Product Pedigree Based Conceptual Structure Evolutionary Design

2012 ◽  
Vol 215-216 ◽  
pp. 612-615
Author(s):  
Xing Zu Wang ◽  
Bo Yang ◽  
Kong Yao ◽  
Chang Qing Gao
Keyword(s):  
Conceptual Design ◽  
Design Process ◽  
Design Method ◽  
Conceptual Structure ◽  
Structure Design ◽  
Classification Model ◽  
Evolutionary Design ◽  
Variant Design ◽  
Interaction Field ◽  
The Relationship

By applying biological pedigree concept into product conceptual structure design, an conceptual structural design approach is set forth to make full use of creative and innovative intelligence of living systems for design automation. According to the relationship between different product structures with same function, the classification model of product pedigree is established, which can be used as unified functional isomorphic model during the intelligent conceptual design process. On the other hand, according to the evolutional logic from quality change to quantities change, pedigree based product evolutionary design strategy is given. Product pedigrees which are homology dependent are used as basic evolutionary models, based on which, the parameter based, interaction field based and interaction mater based evolutional conceptual design method are proposed, respectively. Based on the relation network of the pedigree units, multiple variant design schemes can be obtained, which is a strong backbone to the innovative design process. Finally, design examples are used to demonstrate the successful application of the proposed pedigree based evolutionary method in the product variant design.

A Novel Structure Design of 4-DOF Spatial Compliant Parallel Manipulator

2011 ◽  
Vol 474-476 ◽  
pp. 1069-1074
Author(s):  
Da Chang Zhu ◽  
Qi Hua Gu ◽  
Liang Wang ◽  
Fan Xiao
Keyword(s):  
Parallel Manipulator ◽  
Design Method ◽  
Structure Design ◽  
Geometrical Constraint ◽  
Ansys Software ◽  
Traditional Design ◽  
Novel Structure

A novel type of 4-RPUR spatial compliant parallel manipulator which named whole compliant parallel manipulator (WCPM) is presented in this paper. Compared with traditional design method, a novel 4-RPUR type spatial compliant parallel manipulator which satisfy the geometrical constraint conditions in spatial is proposed. By using ANSYS software, the proposed two kinds of compliant parallel manipulator are analyzed. The effectiveness of the proposed method is verified by simulation and experiments.

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.

Construction of Robot Structure Design Support System by Constraint Logic Programming

1996 ◽  
Vol 8 (5) ◽  
pp. 481-490
Author(s):  
Akira Aiba ◽  
◽  
Shinichi Sato ◽  
Shigeto Aramaki ◽  
◽  
...  
Keyword(s):  
Logic Programming ◽  
Design Process ◽  
Support System ◽  
Structure Design ◽  
Constraint Logic Programming ◽  
Design System ◽  
Design Support ◽  
Fundamental Structure ◽  
Design Support System ◽  
Buchberger Algorithm

In this paper, we show a validity of a new programming paradigm called constraint logic programming by constructing a robot structure design support system. The design process of a robot structure is divided into a fundamental structure design and a internal structure design. A fundamental structure design is a process that determines a framework of the robot such as a degree of freedom, a number of joint, etc. We mainly support a fundamental structure design. This design system is constructed by constraint logic programming language. The Buchberger algorithm is used to calculate the nonlinear equation in this language. Our design system generates an analysis program independent of robot structure easily. The result of analysis is also gotten in the form of expression. The constraint can be appended incrementally. By constructing such a system, we can achieve remarkable reduction of designer's work in design process.

A Extended Algorithm for Generation of Fibrous Form in the Emergent Design System

2009 ◽  
Author(s):  
Koichiro Sato ◽  
Yoshiki Ujiie ◽  
Yoshiyuki Matsuoka
Keyword(s):  
Design Process ◽  
Design Method ◽  
Design Solution ◽  
Design System ◽  
Early Design ◽  
Evaluation Indexes ◽  
Form Generation ◽  
System A ◽  
Emergent Design ◽  
Existing Form

In the early design process called conceptual design and basic design, diverse ideas of design must be obtained from global solution search under the constraint of unclear design conditions. It is difficult to apply the conventional engineering design method from the necessity of the setting of the objective function in the early design process. Therefore, in a previous study, the emergent design system, which is applicable from the early design process, has been proposed. In this study, the degree of freedom in an emergent design solution was extended, to form a method with two types of form elements: existing form elements (matrix element) and fiber form elements. To help construct the system, a differentiation phenomenon, which is seen in the morphogenesis of organisms with diverse forms, was introduced into the form generation algorithm in this system, and the relationship between the input parameters and the newly defined evaluation indexes was analyzed.

Overhang Support Structure Design for Electron Beam Additive Manufacturing

2017 ◽  
Author(s):  
Bo Cheng ◽  
Y. Kevin Chou
Keyword(s):  
Electron Beam ◽  
Additive Manufacturing ◽  
Design Process ◽  
Heat Dissipation ◽  
Design Method ◽  
Solid Substrate ◽  
Structure Design ◽  
Process Time ◽  
Support Structure ◽  
Powder Bed

Overhang structures are commonly found in Powder-bed metal additive manufacturing (AM) such as electron beam additive manufacturing (EBAM) process. The EBAM is assumed to build overhang structure without support features since powder bed could provide support. However, heat dissipation difference by sintered powder and solid substrate for overhang feature actually causes severe part distortion and requires support structure. Current support generation methods usually used certain types of structure to cover the overhang space. They may overestimate the support volume or put a large amount of supports, which could not be necessary and increase the post process time. Thus, the object of this task is to enhance the performance and efficient usage of the EBAM technology through effective support structure designs. In this study, a combined heat support and support anchor design method has been proposed. Numerical model has been used to evaluate stress and deformation during the design process. The detailed design process has been presented for a typical overhang and the simulation results have indicated that overhang deformation can be greatly reduced using this new method.

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