Haptic-Based Function Analysis and Shape Modeling of Multi-Material Product: A Case Study

2004 ◽  
Author(s):  
Z. Y. Yang ◽  
Y. H. Chen
Keyword(s):  
Product Design ◽  
Evaluation Method ◽  
Function Analysis ◽  
Shape Modeling ◽  
Function Evaluation ◽  
Product Analysis ◽  
Object Based ◽  
Product Manufacturing ◽  
Intuitive Interface

In this paper, an intuitive interface of synthesized industrial design and engineering analysis of multi-material product is proposed. In a product design cycle, designers not only need to determine the geometry of a design, but also need to verify the design functions. Besides the concerns of function and geometry, other requirements like ergonomics, aesthetics, and types of visible surfaces also need to be considered. All these concerns are considered in this research through an investigation into multi-material product design. Multi-material product manufacturing processes allow designers to select different materials for different portions of objects in order to improve material-function compatibility for the overall object. Based on a haptic shape modeling system, a permutation method for multi-material product design is developed. A volumetric FEM-based function evaluation method is adopted for multi-material product analysis with the assumption of small displacements. The design and analysis are conducted on the same platform which is enhanced with a haptic device that can provide an intuitive correlation between the applied force and incurred displacement. The methodology is presented through a case study: the design of a toothbrush.

Sugar factory audits, debottlenecking and efficiency improvement

2020 ◽  
pp. 607-612
Author(s):  
Bernard Coûteaux
Keyword(s):  
Evaluation Method ◽  
Predictive Modelling ◽  
Cane Sugar ◽  
Sugar Factory ◽  
Low Energy Consumption ◽  
Process Simulations ◽  
Capital Efficiency ◽  
Potential Improvement ◽  
Primary Focus

This paper elaborates on the key solutions offered by De Smet Engineers & Contractors (DSEC) to optimize the efficiency of cane sugar producing and processing facilities. In order to meet customer needs, DSEC offers proprietary predictive models built using the latest versions of specialized software. These models allow factory managers to envision the whole picture of increased operational and capital efficiency before it becomes reality. An integrated energy model and the CAPEX/OPEX evaluation method are discussed as ways to estimate and optimize costs, both for new greenfield projects and revamping of existing factories. The models demonstrate that factory capacities can be successfully increased using equipment that is already available. Special attention is paid to crystallization and centrifugation process simulations and the potential improvement of the global energy balance. One case study shows the transformation of a beet sugar factory into a refinery to process raw cane sugar after beet crop season and the second case shows the integration of a refinery into a cane sugar factory. The primary focus of the article is optimization of the technological process through predictive modelling. DSEC’s suggested solutions, which lead to great improvements in a plant’s efficiency and its ability to obtain very low energy consumption, are discussed.

The Rapid Iterative Test and Evaluation Method (RITE)

2018 ◽  
Author(s):  
Michael C. Medlock
Keyword(s):  
Evaluation Method ◽  
Test And Evaluation ◽  
Original Case ◽  
Definition Of

This chapter begins with a discussion of the philosophy and then definition of the RITE method. It then delves into the benefits of this method and provides practical notes on running RITE tests effectively. The chapter concludes with an overview of the original case study behind the 2002 article documenting this method.

Product Analysis and Variants Derivation Based on a Semantically Annotated Product Family Ontology

2009 ◽  
Author(s):  
Soon Chong Johnson Lim ◽  
Ying Liu ◽  
Wing Bun Lee
Keyword(s):  
Semantic Annotation ◽  
Product Family ◽  
Relevant Information ◽  
Product Analysis ◽  
Laptop Computer ◽  
Family Analysis ◽  
Design And Manufacturing ◽  
Commonality Analysis ◽  
Current Representation

In literature, there are a number of indexes suggested that serve as the indicator of commonality among product components, modules and variants. However, as these elements are increasingly interconnected with aspects other than the component view, the existing commonality metrics are unable to effectively model these aspects due to their limitation in capturing relevant information for analysis. Therefore, there exists a need to consider multiple design and manufacturing aspects in commonality metrics so that a comprehensive view of the commonality among product variants can be presented. In the current representation schemes proposed for product family modeling, ontology is one of the most promising ones to model the complex semantic relations among various elements in a product family. Nevertheless, the research and application of ontology in the analysis of a product family has so far received little attention. In this paper, we proposed a framework to generate a semantically annotated multi-facet product family ontology. Using a case study of a laptop computer family, we suggest and demonstrate a new commonality analysis approach based on the semantically annotated multi-facet laptop product family ontology. Together with a new method of deriving product variants based on the aforementioned ontology, our approach illustrates the merits of using semantic annotation in assisting ontology based product family analysis.

scholarly journals An evaluation method of the sustainability of water resource in karst region: a case study of Zunyi, China

2015 ◽  
Vol 7 (3) ◽  
pp. 1391-1397 ◽  
Author(s):  
Bo Li ◽  
Ganlu Wang ◽  
Hanghang Ding ◽  
Yulong Chen
Keyword(s):  
Water Resource ◽  
Evaluation Method ◽  
Karst Region
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