scholarly journals Structural-Parametric Model of the Design System

2021 ◽  
Vol 24 (4) ◽  
pp. 244-255
Author(s):  
V. G. Meshkov ◽  
D. E. Iskra
Keyword(s):  
Design Process ◽  
Adaptive Design ◽  
Generative Grammar ◽  
Recognition System ◽  
Partial Ordering ◽  
System Structure ◽  
Design System ◽  
Generation Process ◽  
Probabilistic Network ◽  
Project Description

Purpose of research. In the design process developers dealing with professional issues related to the development of new design methods and tools inevitably face problems associated with the modeling of automated and designed objects. The analysis of the problems of designing complex systems have shown that the disadvantages of the design process appear, in particular, due to the incomplete generation of possible project options, as well as their partial ordering. At the same time, there is a certain imbalance in the properties of design systems and the problem of the lack of adequate methods for describing design processes arises. Methods. In the process of partial ordering of acceptable project options, when determining the structure of the design system at the generation stage, the structure of some generative grammar is used, which should have, first of all, control properties that provide a partial ordering of options already in the generation process. In addition, to take into account changes in the composition and parameters of design solutions, the generative grammar must have adaptive properties, which determines the need to choose an appropriate method for adaptive control of the generation process, taking into account, for example, the frequent repetition of the design process. Results. A model of a formalized recognition system is determined when choosing a project variant presented in the class of recognizing grammars. Rules for the formation of elements of recognizing grammars are given, and the alphabet can be represented by a multi-alternative probabilistic network of design options. The choice of the design object type is considered, the elements of the design system structure are determined. Conclusion. The structure of the design system can be parametrically determined based on the rules for generating elements of recognizing grammars, and the possibilities for generating variants can be coordinated with its recognizing capabilities, while the choice of the structure and forecasting of project parameters is made taking into account the number and properties of design resources. It should be noted that providing only the properties of the design system that reduce the description of the process can lead to difficulties in recognizing variants. At the same time, the choice of an adaptive design system structure allows you to build a language system with variable properties that provide the required reduction or expansion of the project description.

Mechanical-Design-Oriented Knowledge-Driven Model

2010 ◽  
Vol 44-47 ◽  
pp. 1987-1990
Author(s):  
De Fang Liu ◽  
Bin Wang ◽  
Hong Pan Wu
Keyword(s):  
Product Design ◽  
Design Process ◽  
Collaborative Design ◽  
Explicit Knowledge ◽  
Mechanical Design ◽  
System Structure ◽  
Design System ◽  
Normal Product ◽  
Knowledge Reasoning ◽  
Product Design Process

According to the characters of mechanical product design, product design knowledge is classified into explicit knowledge and indefinite knowledge. A knowledge-driven product design system model was proposed based on the knowledge management. To meet the normal product design process, the design system structure was built on four layers. A mixed knowledge reasoning strategy was proposed, which is combined by design cases, models, and rules. The system provides a public integration interface, so different design tools such as UG NX, Catia and Pro-E can be applied. To resolve the design conflict in product design process, a collaborative design technique was put forward that the CAD, CAPP, CAM engineers worked togeth

Research on Virtual Prototype Reality Design of Numerical Control Machine for Users

2012 ◽  
Vol 224 ◽  
pp. 450-454
Author(s):  
Dong Fang Hu ◽  
Qing Miao
Keyword(s):  
Product Development ◽  
Design Process ◽  
Virtual Prototype ◽  
Numerical Control ◽  
System Structure ◽  
Design System ◽  
System Support ◽  
Structure Model ◽  
Current Product ◽  
Control Machine

Based on the principle of virtual prototype reality design and combined with the desired improvement of the user individuation in current product development. The system structure model of virtual prototype reality design of numerical control machine for Users is proposed. The main contents of the virtual prototype reality design system support environment in this model are discussed. The key technique of design process realization is provided.

Process Control Method of Complex Product Multidisciplinary Collaborative Design System

2013 ◽  
Vol 712-715 ◽  
pp. 2888-2893
Author(s):  
Hai Qiang Liu ◽  
Ming Lv
Keyword(s):  
Information Sharing ◽  
Product Design ◽  
Design Process ◽  
Collaborative Design ◽  
Control Method ◽  
Integrated System ◽  
Design System ◽  
System Control ◽  
Complex Product ◽  
Product Design Process

In order to realize information sharing and interchange of complex product multidisciplinary collaborative design (MCD) design process and resources. The Process integrated system control of product multidisciplinary collaborative design was analyzed firstly in this paper, then design process of complex product for supporting multidisciplinary collaborative was introduced, a detailed description is given of the organization structure and modeling process of MCD-oriented Integration of Product Design Meta-model ; and concrete implement process of process integrated system control method was introduced to effectively realize information sharing and interchange between product design process and resources.

scholarly journals An Interactive System to Integrate the Design, Analysis, and Manufacture of Centrifugal Compressor Impellers

1990 ◽  
Author(s):  
James E. Crouse ◽  
James M. Sorokes
Keyword(s):  
Design Process ◽  
Centrifugal Compressor ◽  
Design Analysis ◽  
Design System ◽  
Interactive System ◽  
Cylindrical Coordinates ◽  
Manufacturing Software

This paper presents the impeller design system developed at Dresser-Rand using Bezier polynomials in cylindrical coordinates. A discussion of the basic techniques utilized in the code is presented as are sample graphic outputs generated to aid the user in the design process. The paper also describes some of the output options and how results may be interfaced with other analytical, drafting, and manufacturing software. Comments are included regarding the increased productivity, accuracy, and quality which resulted directly from use of this code and its support routines.

Hydrodynamic Design System for Pumps Based on 3-D CAD, CFD, and Inverse Design Method

2002 ◽  
Vol 124 (2) ◽  
pp. 329-335 ◽  
Author(s):  
Akira Goto ◽  
Motohiko Nohmi ◽  
Takaki Sakurai ◽  
Yoshiyasu Sogawa
Keyword(s):  
Computer Aided Design ◽  
High Performance ◽  
Design Method ◽  
High Reliability ◽  
Secondary Flows ◽  
System Structure ◽  
Inverse Design ◽  
Design System ◽  
Centrifugal Impeller ◽  
Inverse Design Method

A computer-aided design system has been developed for hydraulic parts of pumps including impellers, bowl diffusers, volutes, and vaned return channels. The key technologies include three-dimensional (3-D) CAD modeling, automatic grid generation, CFD analysis, and a 3-D inverse design method. The design system is directly connected to a rapid prototyping production system and a flexible manufacturing system composed of a group of DNC machines. The use of this novel design system leads to a drastic reduction of the development time of pumps having high performance, high reliability, and innovative design concepts. The system structure and the design process of “Blade Design System” and “Channel Design System” are presented. Then the design examples are presented briefly based on the previous publications, which included a centrifugal impeller with suppressed secondary flows, a bowl diffuser with suppressed corner separation, a vaned return channel of a multistage pump, and a volute casing. The results of experimental validation, including flow fields measurements, were also presented and discussed briefly.

scholarly journals A323 Fundamental study on the adaptive design system for NPPV nasal mask

2008 ◽  
Vol 2008.19 (0) ◽  
pp. 125-126
Author(s):  
Yusuke YOSHIDA ◽  
Keiichi NINOMIYA ◽  
Masafumi ODA ◽  
Toshiaki HARA
Keyword(s):  
Adaptive Design ◽  
Design System ◽  
Nasal Mask ◽  
Fundamental Study

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.

A Cooperative-Collaborative Design System for Multi-Disciplinary Mechanical Design

2005 ◽  
Author(s):  
Zhiqiang Chen ◽  
Zahed Siddique
Keyword(s):  
Product Design ◽  
Design Process ◽  
Collaborative Design ◽  
Process Model ◽  
Mechanical Design ◽  
System Level ◽  
Design System ◽  
Design Collaboration ◽  
Design Activities ◽  
Design Process Model

The emergence of computer and network technology has provided opportunities for researchers to construct and build systems to support dynamic, real-time, and collaborative engineering design in a concurrent manner. This paper provides an understanding of the product design in a distributed environment where designers are in different geographic locations and are required to be involved in the design process to ensure successful product design. A design process model that captures the major interactions among stakeholders is presented, based on the observation of cooperation and collaboration. The stakeholders’ interactions are divided into activity and system level to distinguish the interactions in group design activities and design perspective evolution. An initial computer implementation of the design model is presented. The design system consists of a set of tools associated with design and a management system to facilitate distributed designers to support various design activities, especially conceptual design. Our research emphasis of design collaboration in this paper is: (i) Model a Cooperative-collaborative design process; (ii) Support synchronized design activities; and (iii) Structure the complex relations of various design perspectives from engineering disciplines.

scholarly journals Computer-aided design system for control moment gyroscope

2018 ◽  
Vol 158 ◽  
pp. 01021
Author(s):  
Tamara Kostyuchenko ◽  
Nelya Indygasheva
Keyword(s):  
Design Process ◽  
Computer Aided Design ◽  
Electromechanical System ◽  
Design System ◽  
Optimal Parameters ◽  
Control Moment Gyroscope ◽  
Control Moment ◽  
Computer Aided ◽  
Aided Design ◽  
Orientation Systems

Control moment gyroscope or two-axis balking gyroscope is used in spacecraft orientation systems. The control moment gyroscope is a complex electromechanical system with different parameters which connect by means of specific instant and inverse dependences. This fact could complicate the design process as of getting the optimal parameters the search of construction variations becomes harder. To simplify the control moment gyroscope designing process and increase its efficiency the computer-aided design system could be as highly useful. The computer-aided design system which is used in the present research and described in the article consists of five main subsystems. They cover the main stages of control moment gyroscope designing.

Collaborative Commodity Design System Based on DARFAD

2010 ◽  
Vol 97-101 ◽  
pp. 3757-3760
Author(s):  
Yan Dong Wang ◽  
He Shan Liu ◽  
Zhen Ya Wang ◽  
Ying Xin Zhao
Keyword(s):  
Product Design ◽  
Development Process ◽  
Design System ◽  
Module Structure ◽  
Generation Process ◽  
General Development ◽  
Dynamic Alliance ◽  
Design Case ◽  
Design Case Study

This paper presents the concept of Collaborative Commodity Design (CCD). The main features of CCD is introduced, and the general development process and overall framework of CCD is proposed. Collaborative Commodity Design System (CCDS) implementation is discussed in detail with emphasis on two different aspects: generation process of economic schemes and creation of dynamic alliance module structure. Finally a product design case study has shown operability and efficiency of the system.

Sign in / Sign up

Export Citation Format

Share Document