Total agile design system model via literature exploration

2009 ◽  
Vol 109 (4) ◽  
pp. 570-588 ◽  
Author(s):  
S. Vinodh ◽  
G. Sundararaj ◽  
S.R. Devadasan
Keyword(s):  
Computer Aided Design ◽  
Design Methodology ◽  
Agile Manufacturing ◽  
System Model ◽  
Design System ◽  
Content Type ◽  
Computer Aided ◽  
Agile Design ◽  
Aided Design ◽  
Practical Implications

PurposeThe purpose of this paper is to explore the researches reported in literature on agile manufacturing (AM) and determine the avenues by which agility can be imparted in traditional sectors.Design/methodology/approachAfter reviewing the literature on AM, it has been found that these papers address AM along as many as 12 directions. The findings of this review are used to design a model called total agile design system (TADS).FindingsThe major finding of the exploration reported in this paper is that, the need of the hour is to sensitize the traditional sectors for acquiring design capabilities compatible for imbibing agility in totality.Research limitations/implicationsThe TADS model proposed has been reviewed only by 25 industry captains. However, this may not affect the credibility of this model as it is designed by referring to a large number of researches reported in peer reviewed articles appeared in leading international journals.Practical implicationsAfter designing, TADS was exposed to 25 industry captains. Their feedback was gathered using a questionnaire. The results of analysis of their feedback indicates the practical compatibility of TADS.Originality/valueIt appears that no researcher has identified the different directions in which AM researches have progressed. Moreover, no researcher has contributed a model to adopt computer aided design (CAD)/computer aided manufacturing (CAM) and rapid prototyping (RP) technologies in totality to achieve agility in manufacturing organisations. As this paper has overcome the absence of these kinds of researches, it is original and valuable.

Computer‐aided design and engineering as enablers of agile manufacturing

2011 ◽  
Vol 22 (3) ◽  
pp. 405-418 ◽  
Author(s):  
S. Vinodh ◽  
D. Kuttalingam
Keyword(s):  
Technology Integration ◽  
Computer Aided Design ◽  
Design Methodology ◽  
Agile Manufacturing ◽  
Content Type ◽  
Computer Aided ◽  
Manufacturing Organization ◽  
Aided Design ◽  
Practical Feasibility ◽  
Practical Implications

PurposeThe purpose of this paper is to investigate computer‐aided design (CAD) and computer‐aided engineering (CAE) as enablers of agile manufacturing (AM).Design/methodology/approachBased on the literature review, the importance of technology integration enabling AM has been found. CAD technology has been used for modelling baseline product; CAE has been used for deriving optimized parameters; new designs have been derived.FindingsThe feasibility of CAD and CAE as enablers of AM has been ensured.Research limitations/implicationsThe study has been conducted only in one automotive sprocket manufacturing organization.Practical implicationsThe practical feasibility of generating new products through technology integration has been ensured.Originality/valueVery little research has been reported on technology‐integrated AM practices. In this study, CAD and CAE have been used for enabling product development.

Rapid prototyping-assisted fabrication of the customized metatarsophalangeal joint implant (SamKu)

2014 ◽  
Vol 20 (4) ◽  
pp. 270-279 ◽  
Author(s):  
Sameer C. Raghatate ◽  
Abhaykumar M. Kuthe ◽  
Tushar R. Deshmukh ◽  
Sandeep W. Dahake
Keyword(s):  
Rapid Prototyping ◽  
Computer Aided Design ◽  
Surgical Planning ◽  
Metatarsophalangeal Joint ◽  
Content Type ◽  
Advanced Technologies ◽  
Joint Implant ◽  
Computer Aided ◽  
Aided Design ◽  
Practical Implications

Purpose – The main purpose of this paper is to report the successful treatment modality for patients suffering from arthritis of the metatarsophalangeal joint (MTPJ) of the foot which otherwise could not be treated through traditional surgeries. Design/methodology/approach – The unique capabilities of the computer-aided design and the rapid prototyping (RP) technology are used to develop the customized MTPJ implant (SamKu). Findings – This approach shows good results in the fabrication of the MTPJ implant. Postoperatively, the patient experienced normalcy in the movement of the MTPJ of the foot. Practical implications – Advanced technologies made it possible to fabricate the customized MTPJ implant (SamKu). The advantage of this approach is that the physical RP model assisted in designing the final metallic implant. It also helped in the surgical planning and the rehearsals. Originality/value – This case report illustrates the benefits of imaging/computer-aided manufacturing/RP to develop the customized implant and serve those patients who could not be treated in the traditional way. This is a pioneered attempt toward implementation of a customized implant for patients suffering from arthritis of the MTPJ.

The size prediction and auto-generation of garment template

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Haisang Liu ◽  
Gaoming Jiang ◽  
Zhijia Dong ◽  
Fenglin Xia ◽  
Honglian Cong
Keyword(s):  
Prediction Model ◽  
New Product Development ◽  
Computer Aided Design ◽  
Smooth Curve ◽  
New Product ◽  
Design System ◽  
Content Type ◽  
Computer Aided ◽  
Aided Design ◽  
The Relationship

PurposeThe size prediction of garment is an important part in the process of the garment design and production, and it is also one of the most important features in warp-knitted computer-aided design system. The purpose of this paper is to realize the auto-generation of the garment templates using JavaScript and WebGL technologies, based on the prediction of the size of warp-knitted seamless sportswear.Design/methodology/approachThe warp-knitted jacquard technology is used to produce the warp-knitted seamless sportswear, which is divided into suits and tights. In order to achieve the purpose of this study, the dimensions of four kinds of jacquard patterns knitted under different knitting conditions are measured and the crosswise and longitudinal size shrinkage percentages are also calculated. Then, the relationship between the yarn count and the drawing density as well as the size shrinkage percentage is studied and a size prediction model for warp-knitted jacquard fabric is established. Next, according to the results of the size calculation, the point positions of the garment boundary in the mathematical coordinate system is determined. The color formula is built by the two-dimensional mathematical matrix. Finally, combined with the coordinate position and color information, the template can be drawn automatically.FindingsBased on the size prediction model of warp-knitted garment, the template generation of warp-knitted full-form sportswear on WebGL-enabled web browser is realized, which is proven to be an effective computer-aided design method for warp-knitted garments.Research limitations/implicationsBecause of limited researches, only two groups of yarns and four kinds of jacquard patterns were studied. A vaster database should be built and smooth curve, accurate coordinate needs to be optimized in the further research.Practical implicationsThe size prediction model for warp-knitted jacquard garment and garment template auto-generation of warp-knitted computer-aided design system will simplify the fabric technical design process, shorten design time and improve the efficiency of new product development.Social implicationsThe size prediction model for warp-knitted jacquard garment and garment template auto-generation of warp-knitted computer-aided design system will provide the industries a guidance for new sample development and it also can shorten the development time and lower cost.Originality/valueThis author analyzes the relationship between the size characteristics and knitting technology of warp-knitted jacquard patterns, proposes a model of size prediction and realizes the auto-drawing of the garment template in the warp-knitted CAD system, which provides a reference for the new product design and development of warp-knitted seamless sportswear.

Design and evaluation of exoskeleton for static conditions using Indian anthropometric considerations

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Abhilash C.R. ◽  
Sriraksha Murali ◽  
M. Abdul Haq ◽  
N.S. Narahari
Keyword(s):  
Computer Aided Design ◽  
Design Methodology ◽  
Human Beings ◽  
Content Type ◽  
Anthropometric Features ◽  
Computer Aided ◽  
Sustained Loads ◽  
External Power ◽  
Static Conditions ◽  
Aided Design

Purpose Various occupations in life require personnel to stand for a prolonged period of time. This causes excessive stress on the joints leading to musculoskeletal disorders. This paper aims to design an equipment ensure the personnel rests on whenever necessary. Design/methodology/approach The method followed in this paper is the adoption of Karl Ulrich’s product design methodology with suitable modifications as per requirement. Human anthropometric data from the Indian population has been considered during the design and modelled according to it using computer aided design and computer aided engineering tools. Findings The conceptual equipment – exoskeleton designed sustained loads of human beings and proved to be a safe design in terms of the strength of the material used in the design. Social implications This design can serve as equipment, which helps the personnel with long-standing work hours to relieve themselves without actually sitting. Originality/value The design has been carefully crafted based on the inputs from the anthropometric features of human beings, which is completely passive in nature i.e. no use of external power is required for this exoskeleton compared to the other available designs.

scholarly journals An interactive product customization framework for freeform shapes

2017 ◽  
Vol 23 (6) ◽  
pp. 1136-1145 ◽  
Author(s):  
Yunbo Zhang ◽  
Tsz Ho Kwok
Keyword(s):  
Additive Manufacturing ◽  
Computer Aided Design ◽  
Reference Model ◽  
Three Dimensional ◽  
Frame Structure ◽  
Design System ◽  
Content Type ◽  
Additional Tool ◽  
Computer Aided ◽  
Aided Design

Purpose The purpose of this paper is to establish new computer-aided-design (CAD) framework to design custom product that is fabricated additive manufacturing (AM), which can produce complex three-dimensional (3D) object without additional tool or fixture. Additive manufacturing (AM) enables the fabrication of three-dimensional (3D) objects with complex shapes without additional tools and refixturing. However, it is difficult for user to use traditional computer-aided design tools to design custom products. Design/methodology/approach In this paper, the authors presented a design system to help user design custom 3D printable products based on some reference freeform shapes. The user can define and edit styling curves on the reference model using the interactive geometric operations for styling curve. Incorporating with the reference models, these curves can be converted into 3D printable models through the fabrication interface. Findings The authors tested their system with four design applications including a hollow patterned bicycle helmet, a T-rex with skin frame structure, a face mask with Voronoi patterns and an AM-specific night dress with hollow patterns. Originality/value The executable prototype of the presented design framework used in the customization process is publicly available.

scholarly journals Computer aided design of ferrite lumped element circulators

2021 ◽  
Vol 23 (4) ◽  
pp. 74-84
Author(s):  
Vladimir N. Borodin ◽  
Valery A. Kozlov ◽  
Evgeny A. Mikhalitsyn ◽  
Alexander V. Sorokin
Keyword(s):  
Computer Aided Design ◽  
Design Methodology ◽  
Ultra Wideband ◽  
Design System ◽  
Resonant Circuit ◽  
Lumped Element ◽  
Computer Aided ◽  
Impedance Calculation ◽  
Aided Design ◽  
Theoretical Results

The results of integrity of narrowband and wideband lumped element circulators design methodology to the computer aided design system of microwave devices AWR Microwave Office are presented in the article. The calculation method of narrow band circulators circuits which consist of serious and shunt tuning capacities is investigated. The simple and visual method of wideband ferrite isolators optimize design based on circulation impedance calculation is described here. The results of design of the ultra wideband circulator with shunt capacity, serious resonant matching circuit and serious resonant circuit between common terminal and ground are considered. The new theoretical results of calculation of two schematics of wideband high power circulators with serious tuning capacity are presented. The first schematic is formed with matching resonant network being connected in serious at each terminal. It is shown that double hump characteristic is realized. The second schematic is formed with serious resonant network connected between common terminal and the ground. It is shown that four-order Tchebycheff characteristic is realized.

Structural Analysis of Product and Computer-Aided Assembly Planning in AssemBL Software Package

2018 ◽  
pp. 11-33
Author(s):  
A. N. Bozhko
Keyword(s):  
Computer Aided Design ◽  
State Of The Art ◽  
Graph Model ◽  
Design System ◽  
Assembly Planning ◽  
Complex Products ◽  
Assembly Sequences ◽  
Computer Aided ◽  
Cad Cam ◽  
Aided Design

Computer-aided design of assembly processes (Computer aided assembly planning, CAAP) of complex products is an important and urgent problem of state-of-the-art information technologies. Intensive research on CAAP has been underway since the 1980s. Meanwhile, specialized design systems were created to provide synthesis of assembly plans and product decompositions into assembly units. Such systems as ASPE, RAPID, XAP / 1, FLAPS, Archimedes, PRELEIDES, HAP, etc. can be given, as an example. These experimental developments did not get widespread use in industry, since they are based on the models of products with limited adequacy and require an expert’s active involvement in preparing initial information. The design tools for the state-of-the-art full-featured CAD/CAM systems (Siemens NX, Dassault CATIA and PTC Creo Elements / Pro), which are designed to provide CAAP, mainly take into account the geometric constraints that the design imposes on design solutions. These systems often synthesize technologically incorrect assembly sequences in which known technological heuristics are violated, for example orderliness in accuracy, consistency with the system of dimension chains, etc.An AssemBL software application package has been developed for a structured analysis of products and a synthesis of assembly plans and decompositions. The AssemBL uses a hyper-graph model of a product that correctly describes coherent and sequential assembly operations and processes. In terms of the hyper-graph model, an assembly operation is described as shrinkage of edge, an assembly plan is a sequence of shrinkages that converts a hyper-graph into the point, and a decomposition of product into assembly units is a hyper-graph partition into sub-graphs.The AssemBL solves the problem of minimizing the number of direct checks for geometric solvability when assembling complex products. This task is posed as a plus-sum two-person game of bicoloured brushing of an ordered set. In the paradigm of this model, the brushing operation is to check a certain structured fragment for solvability by collision detection methods. A rational brushing strategy minimizes the number of such checks.The package is integrated into the Siemens NX 10.0 computer-aided design system. This solution allowed us to combine specialized AssemBL tools with a developed toolkit of one of the most powerful and popular integrated CAD/CAM /CAE systems.

The generation of adaptive assembly from predicting change propagation

2015 ◽  
Vol 35 (3) ◽  
pp. 269-280 ◽  
Author(s):  
Hu Qiao ◽  
Rong Mo ◽  
Ying Xiang
Keyword(s):  
Computer Aided Design ◽  
Three Dimensional ◽  
Original Method ◽  
Change Propagation ◽  
Assembly Model ◽  
Practical Application ◽  
Content Type ◽  
Design Structure ◽  
Aided Design ◽  
Practical Implications

Purpose – The purpose of this paper is to establish an adaptive assembly, to realize the adaptive changing of the models and to improve the flexibility and reliability of assembly change. For a three-dimensional (3D) computer-aided design (CAD) assembly in a changing process, there are two practical problems. One is delivering parameters’ information not smoothly. The other one is to easily destroy an assembly structure. Design/methodology/approach – The paper establishes associated parameters design structure matrix of related parts, and predicts possible propagation paths of the parameters. Based on the predicted path, structured storage is made for the affected parameters, tolerance range and the calculation relations. The study combines structured path information and all constrained assemblies to build the adaptive assembly, proposes an adaptive change algorithm for assembly changing and discusses the extendibility of the adaptive assembly. Findings – The approach would improve the flexibility and reliability of assembly change and be applied to different CAD platform. Practical implications – The examples illustrate the construction and adaptive behavior of the assembly and verify the feasibility and reasonability of the adaptive assembly in practical application. Originality/value – The adaptive assembly model proposed in the paper is an original method to assembly change. And compared with other methods, good results have been obtained.

A new management for enduring company success

Kybernetes ◽  
2011 ◽  
Vol 40 (3/4) ◽  
pp. 369-393 ◽  
Author(s):  
William F. Christopher
Keyword(s):  
Design Methodology ◽  
System Model ◽  
Business Enterprise ◽  
Viable System Model ◽  
System Science ◽  
Content Type ◽  
Turbulent Times ◽  
Changing Times ◽  
Viable System ◽  
Practical Implications

PurposeThe purpose of this paper is to explain how the system science and cybernetics in Stafford Beer's viable system model (VSM) will help management structure and manage their company to achieve on‐going success in a fast‐changing world.Design/methodology/approachThe author worked with Stafford Beer in the 1970s, applying his VSM in the corporation he then worked for and has used the VSM ideas in work with companies in 16 countries, always with success. The VSM instructs in how to structure and how to manage. For what to manage the author used Peter Drucker's key performance areas, and has more than 50 years of experience working in these areas.FindingsThe author has found, during his long career in industry and in consulting, that the VSM is the best available guide for structuring and managing a business enterprise for success in turbulent times.Practical implicationsIn the 1950s, Ralph Cordiner “decentralized” General Electric into 120 businesses, pioneering a new, better way to structure and manage a corporation. After 50 years, we have the next revolutionary advance in management, the system science and cybernetics in Stafford's VSM. The VSM includes information and environments in structure, enabling companies to change as appropriate for achieving on‐going success in a world of huge and fast‐growing variety.Originality/valueThe paper shows how a simple form of the VSM includes all the system science company management needs to structure and manage their company for enduring success in fast‐changing times.

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