A Novel Hybrid Design Representation for Automatic Design Features Recognition Systems

2015 ◽  
Vol 809-810 ◽  
pp. 847-852
Author(s):  
Cezary Grabowik ◽  
Rafał Zbiciak

Problems of design similarity identification and elements grouping play a key factor in the development of design standardization and the group technology methods. Design similarity identification methods are most often based on a comparison of codes ascribed to products design. Basically the code makes a quantitative product description including different product features. Whereas a qualitative description has constituted rather supplement of a quantitative description. The most important issue in a process of design similarity identification is a method of a product design description. This description is usually made with use of special codes composed of alphanumeric characters. The coding process allows reducing the number of data which are being processed during design similarity evaluation, but on the other hand in some cases it could cause information loss. Taking into account above there is still a need of working out of a new method of a product design description which will be able to reduce these negative features of coding techniques. In the paper a novel approach for a product design description is presented. It is proposed to apply a hybrid method for a design representation purpose. This method uses a combination of code chains for a product longitudinal cross-section representation and a spatial matrix for transvers sections. As a result of the conducted research a new method of a product design description was worked out. This method is especially suggested for application in automatic design feature recognition systems (AFR systems) in which a design feature database (DFD) is present.

Author(s):  
Daniel M. Gaines ◽  
Fernando Castaño ◽  
Caroline C. Hayes

Abstract This paper presents MEDIATOR, a feature recognition system which is designed to be maintainable and extensible to families of related manufacturing processes. A problem in many feature recognition systems is that they are difficult to maintain. One of the reasons may be because they depend on use of a library of feature-types which are difficult to update when the manufacturing processes change due to changes in the manufacturing equipment. The approach taken by MEDIATOR is based on the idea that the properties of the manufacturing equipment are what enable manufacturable shapes to be produced in a part. MEDIATOR’S method for identifying features uses a description of the manufacturing equipment to simultaneously identify manufacturable volumes (i.e. features) and methods for manufacturing those volumes. Maintenance of the system is simplified because only the description of the equipment needs to be updated in order to update the features identified by the system.


2013 ◽  
Vol 345 ◽  
pp. 388-391
Author(s):  
Yan Qun Wang ◽  
Shu Hui Li ◽  
Hai Hao Xu

Tao and Xiang are two concepts which have a significant impact on the formative industry design ideological in China. Perceptual and representational are the features of Xiang, these reflected the recognition and using of perceptual factors in formative industry design ideological more often. Abstract and rational are the features of Tao, these reflected the using of objective factors in formative industry design ideological more often. It would group technology and sculpt factors harmonious, increase art and science of formative industry design, build a modern product design process better that pay attention to the importance of image and Tao on formative thinking.


Author(s):  
Jyotirmaya Nanda ◽  
Henri J. Thevenot ◽  
Timothy W. Simpson ◽  
Soundar R. T. Kumara ◽  
Steven B. Shooter

By sharing product design information across a family of products, companies can increase the flexibility and responsiveness of their product realization process while shortening lead-times and reducing cost. This paper describes a preliminary attempt at using semantic web paradigm, especially the Web Ontology Language (OWL), for product family information management. An overview of the ongoing work with Semantic Web is also presented. Formal product representation using OWL can not only store the structure of the product family but also help in capturing the evolution of different components of the product family. As an illustration, a group of single-use cameras, containing several products from the Kodak single-use camera family, is represented in OWL format. The methodology of ontology development that can support product family design is discussed in detail. Product family design representation using OWL promotes better learning across products and reduced development time, system complexity, and product design lead-time.


2014 ◽  
Vol 2 (1) ◽  
pp. 97-104 ◽  
Author(s):  
S. Hergarten ◽  
J. Robl ◽  
K. Stüwe

Abstract. We present a new method to extend the widely used geomorphic technique of swath profiles towards curved geomorphic structures such as river valleys. In contrast to the established method that hinges on stacking parallel cross sections, our approach does not refer to any individual profile lines, but uses the signed distance from a given baseline (for example, a valley floor) as the profile coordinate. The method can be implemented easily for arbitrary polygonal baselines and for rastered digital elevation models as well as for irregular point clouds such as laser scanner data. Furthermore it does not require any smoothness of the baseline and avoids over- and undersampling due to the curvature of the baseline. The versatility of the new method is illustrated by its application to topographic profiles across valleys, a large subduction zone, and the rim of an impact crater. Similarly to the ordinary swath profile method, the new method is not restricted to analyzing surface elevations themselves, but can aid the quantitative description of topography by analyzing other geomorphic features such as slope or local relief. It is even not constrained to geomorphic data, but can be applied to any two-dimensional data set such as temperature, precipitation or ages of rocks.


2010 ◽  
Vol 26-28 ◽  
pp. 690-693 ◽  
Author(s):  
Wei Hui Dai

In the face of increasing competition and diversified demand, product design must be customer oriented for modern enterprises to satisfy the variationally personalized requirements. Thereof; the exact orientation and comprehensive analysis of target customers have been the key to conduct customer oriented product design. This paper presented a new method for the orientation and analysis of target customers by adaptive clustering analysis. By this method, the distribution of customer clusters and the related characteristics of each custer as well as its included customers can be extracted dynamically and adaptively. Applied by this method, the adaptive recommendation system was illustrated for the design of LCD-TV.This paper applied the Autonomous Intelligent System(AIS) to deal with the intelligent activities intelligently and automatically, and thereof provided a new method for the Supply Chain Management(SCM) on MC manufacture. First, a new supply chain model based on E-HUB was presented according to the requirements of MC manufacture, and then the structure and operation of AIS were designed to support that SCM. Finally, the development technology of AIS was discussed.


2016 ◽  
Vol 24 (4) ◽  
pp. 821-838 ◽  
Author(s):  
Qiang Zhang ◽  
Desheng Wu ◽  
Chao Fu ◽  
Claude Baron ◽  
Zhanglin Peng

Author(s):  
X. Y. Shao ◽  
Q. Cheng ◽  
G. J. Zhang ◽  
P. G. Li ◽  
P. H. Gu

Adaptable design aims to extend the utilities of designs and products. Adaptability is classified into product and design adaptabilities. Product adaptability indicates that functionality and life can be extended for both economical and environmental benefits. Design adaptability improves design reuse by using existing designs to develop new designs more efficiently. To evaluate adaptable design, it is necessary to develop a method for quantitative measurement of the adaptability of products. A new method has been developed that first analyzes the independencies of functions and functional modules and then evaluates the adaptability of interfaces with two indices, as well as the performances of adaptive requirements. The effectiveness of the proposed method is demonstrated by an illustrative example of personal computer motherboards. The results show that the method can evaluate and reveal product adaptability for improving design and providing innovative design.


2018 ◽  
Vol 4 (1) ◽  
pp. 33
Author(s):  
Bagus Mahardika

Assessment is one of the important stages in the learning process of Indonesia because through the assessment of teachers to know the extent to which the learning objectives have been achieved. Assessment can be done through measurement (quantitative description) and / or through non-measurement (qualitative description). When teachers collect information on students' level of understanding through questions, observations, and assignments the teacher actually has conducted a non-measurement evaluation. The activity of the teacher is very useful in determining the level of mastery of students and in assessing the effectiveness of the learning process. Accurate information about student learning outcomes, interests and needs can only be obtained through effective assessment and assessment. The current assessment is a portfolio assessment that has many benefits for both teachers and students. Portfolio assessment is broader than assessment through tests, as with portfolios, teachers can follow cognitive development, attitudes, interests and student activities related to math. Thus, teachers can utilize the portfolio in improving the quality of learning which in turn will improve the quality of student learning outcomes.


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