A Normalized Product Structure Model for Manufacturing

2003 ◽  
pp. 201-210 ◽  
Author(s):  
L. Deshayes ◽  
J-F. Rigal ◽  
P. Ghodous ◽  
R. Gervais
Keyword(s):  
Product Structure ◽  
Structure Model

Configurable Product Structure Model Based on Semantic Network

2013 ◽  
Vol 655-657 ◽  
pp. 2074-2079
Author(s):  
Xin Wang ◽  
Lin Gao ◽  
Chong Chong Ji
Keyword(s):  
Knowledge Representation ◽  
Structural Model ◽  
Semantic Network ◽  
Semantic Networks ◽  
Product Structure ◽  
Semantic Relation ◽  
Product Configuration ◽  
Configuration Design ◽  
Structure Model ◽  
Representation Form

Depending on the demand of structure model in product configuration design, product types that can be configured are described and analyzed. Based on semantic networks as a kind of available knowledge representation form and Extend A/O tree, structural model of configurable product is put forward. The structural relation, assembly relation and configuring option relation are included, semantic relation among assembly parts is also expressed. Finaly, configurable node model is proposed.

Study on Module Encoding Method Oriented Product Configuration Design

2009 ◽  
Vol 69-70 ◽  
pp. 535-539
Author(s):  
Cong Da Lu ◽  
X.H. Chen ◽  
Shao Fei Jiang ◽  
Guo Zhong Chai
Keyword(s):  
Mass Customization ◽  
Product Information ◽  
Product Structure ◽  
Product Configuration ◽  
Configuration Design ◽  
Geometric Features ◽  
Structure Model ◽  
Related Information ◽  
Computer Aided ◽  
Encoding Method

For the successful realization of product configuration design (PCD) in the condition of mass customization mode, the module encoding methods are studied. By analyzing the product structure model and the process of computer-aided PCD, all related information which is required for the module is decided. This paper proposes a scientific module encoding method suitable for PCD. It describes the geometric features of the modules, the interface relationships and the affiliations between modules. Further more, it introduces additional attribute codes used to evaluate product configuration. By this way the product information can be fully expressed in order to improve the efficiency of PCD.

Research on Product Model Based on Object-Oriented Method

2008 ◽  
Vol 44-46 ◽  
pp. 601-606
Author(s):  
Xiao Ming Qian ◽  
Dun Bing Tang
Keyword(s):  
Product Design ◽  
Object Oriented ◽  
Product Structure ◽  
Object Oriented Method ◽  
Structure Model ◽  
Product Model ◽  
Model Based ◽  
Model Class

A product structure model for Rapid Product Design (RPD) is discussed. It is composed of Assembly Topology Tree (ATT) that describes the assembly relation between parts and the Part Topology Tree (PTT) that describe the geometry relation in a part, and it explains the constraint relations and the selection conditions between the components and parts. Product model class and its subclasses are built by Object-Oriented method to describe the structure and relation of a product and its components. At last an instance of the product structure model is introduced.

Product Structure Modelling for the Made-to-Order Environment

2005 ◽  
Author(s):  
Qianfu Ni ◽  
Prasad K. D. V. Yarlaggada ◽  
Wen Feng Lu
Keyword(s):  
Family Structure ◽  
Business Processes ◽  
Effective Means ◽  
Product Family ◽  
Product Structure ◽  
Structure Model ◽  
Product Lifecycle ◽  
Entire Family ◽  
Structure Representation ◽  
Variant Structure

Product structure is the key information widely used by various business activities performed at different departments and different stages. In the made-to-order environment, product structure representation becomes more complicated because each product can have many variants with slightly different constitutions to fulfill different customer requirements. In such a context, product structure management comes to two interrelated functions: family structure management and variant structure management. At the same time, these two functions need to be seamlessly integrated to ensure the consistency of a family structure and its variant structure. From the business process perspective, throughout the entire product lifecycle, different business activities look at product structure with different purposes. Some activities are carried out based on variants and deem individual variants as different products and some need to be performed based on an entire family. As such, it is imperative to develop a product structure model that is capable of flexibly representing product families and product variants to serve up different processes in a product lifecycle. In this paper, a product structure model based on a master-variant pattern is proposed. The model can explicitly represent common characteristics of a family and particular characteristics of individual variants. Moreover, the variant structure representation is built on the top of the family structure representation. As a result, it provides an effective means to synchronize two types of structures. It also makes product family and variant concepts transparent to various business processes so that effective support can be provided to processes integration in the made-to-order environment.

Computer Aided Product Structure Modeling Using a DBMS

1993 ◽  
Author(s):  
H. L. Johannesson
Keyword(s):  
Product Structure ◽  
Structure Modeling ◽  
Structure Model ◽  
Product Model ◽  
Geometric Information ◽  
Data Bases ◽  
Embodiment Design ◽  
Product Models ◽  
Computer Based ◽  
Data Base Management System

Abstract In the present paper a computer based method for top-down structure modeling of products is presented. A general hierarchical DBMS-based tree structure model is used. It is designed so that it can be connected to separately designed part product models, containing geometric models and references to standard component data bases and manufacturing documents. Together the presented product structure model and the part product models become a complete product model containing structural as well as geometric information. The structure modeling is meant to be carried out as a first step during the embodiment design phase, before the parts are designed and the standard components are selected. Thus the geometric information is incomplete during the structure modeling phase. A computer program for product structure modeling has been developed. It allows the number of hierarchical structure levels, as well as the number of objects on each level, to be chosen arbitrarily by the user. The data base management system TORNADO is used by the modeling program for building the structure model data bases. A structure modeling example is given in order to demonstrate the structure modeling procedure and the capabilities of the program.

Fast calibration of CBED patterns for quantitative analysis

1993 ◽  
Vol 51 ◽  
pp. 674-675
Author(s):  
M.A. Gribelyuk ◽  
M. Rühle
Keyword(s):  
Reciprocal Lattice ◽  
Accurate Determination ◽  
Incident Beam ◽  
Crystal Thickness ◽  
Structure Model ◽  
Beam Direction ◽  
Transmitted Beam ◽  
Reciprocal Vector ◽  
On Line

A new method is suggested for the accurate determination of the incident beam direction K, crystal thickness t and the coordinates of the basic reciprocal lattice vectors V1 and V2 (Fig. 1) of the ZOLZ plans in pixels of the digitized 2-D CBED pattern. For a given structure model and some estimated values Vest and Kest of some point O in the CBED pattern a set of line scans AkBk is chosen so that all the scans are located within CBED disks.The points on line scans AkBk are conjugate to those on A0B0 since they are shifted by the reciprocal vector gk with respect to each other. As many conjugate scans are considered as CBED disks fall into the energy filtered region of the experimental pattern. Electron intensities of the transmitted beam I0 and diffracted beams Igk for all points on conjugate scans are found as a function of crystal thickness t on the basis of the full dynamical calculation.

Prediction of root damaging during mechanical shaking of fruit trees

2014 ◽  
Vol 10 (1) ◽  
pp. 1-15
Author(s):  
Z. Láng
Keyword(s):  
Field Experiments ◽  
Calculated Data ◽  
Fruit Trees ◽  
List Type ◽  
Structure Model ◽  
Root Damage ◽  
Set Up ◽  
Simple Tree ◽  
The Given ◽  
Cherry Trees

The possible effect of shaker harvest on root damage of 10-year-old cherry trees was studied on a simple tree structure model. The model was composed of elastic trunk and rigid main roots, the ends of which were connected to the surrounding soil via springs and dumping elements. Equations were set up to be able to calculate the relation between shaking height on the trunk and strain in the roots. To get the data for root break and their elongation at different shaking heights on the trunk, laboratory and field experiments were carried out on cherry trees and on their roots. Having evaluated the measured and calculated data it could be concluded that root damage is to be expected even at 3.6% strain and the risk of it increases with increased trunk amplitudes, i.e.with the decrease of shaking heightat smaller stem diameters (i.e. in younger plantation), andif the unbalanced mass of the shaker machine is too large for the given tree size.

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