Product Modeling, Evaluation and Validation at the Detailed Design Stage

2011 ◽  
Author(s):  
Cristian Iorga ◽  
Alain Desrochers
Keyword(s):  
Product Development ◽  
Design Process ◽  
Design Stage ◽  
Product Modeling ◽  
Specific Product ◽  
Development Processes ◽  
Product Variation ◽  
Process Methodology ◽  
Capstone Projects ◽  
Short Time

The expansion of the markets corroborated with product customization and short time to launch the product have led to new levels of competition among product development companies. To be successful in the globalization of the markets and to enable the evaluation and validation of products, companies have to develop methodologies focused on lifecycle analysis and reduction of product variation to obtain both quality and robustness of products. Keywords: Modeling, Evaluation, Validation, Design ProcessThis paper proposes a new design process methodology that unifies theoretical results of modeling stage and empirical findings obtained from the validation stage. The evaluations and validations of engineering design are very important and they have a high influence on product performances and their functionality, as well on the customer perceptions.Given that most companies maintain the confidentiality of their product development processes and that the existing literature does not provide more detailed aspects of this field, the proposed methodology will represent a technical and logistical support intended for students or engineers involved in academic as well as industrial projects.A generic methodology will be refined based on a new approach that will take into consideration the specification types (quantitative or qualitative), the design objectives and the product types: new/improved, structural/esthetic. Hence the new generic methodology will be composed of specific product validation algorithms taking into account the above considerations. At the end of this paper, the improvements provided by the proposed methodology into the design process will be shown in the context of the engineering student capstone projects at the Université de Sherbrooke.

A Method for the Evaluation of the Suitability of Specific Product Development Processes for Parallelization

1997 ◽  
Author(s):  
Gritt Ahrens
Keyword(s):  
Product Development ◽  
Design Process ◽  
Development Process ◽  
Product Development Process ◽  
Project Leader ◽  
Specific Product ◽  
3D Cad ◽  
Cad System ◽  
Development Processes

Abstract A method for the parallelization of the working steps of an existing product development process is discribed. The procedure which is based on the design methodology as described by Pahl and Beitz provides a framework of rules and guidelines which enable the project leader to judge in which phase of a development and design process the introduction of Simultaneous Engineering is profitable. In a case study of a German manufacturer of tubomachines and its subcontractor the developed method is validated by the example of the development and design process of a geared compressors. The reorganized process was tested using a commercially available 3D-CAD-System in order to simulate the design tasks and a commercially available PDM-System for the handling of the data produced.

Integrated Modeling Towards Collaborative Product Development

2008 ◽  
Vol 44-46 ◽  
pp. 669-676 ◽  
Author(s):  
Dong Xing Cao ◽  
Yan Hui Han ◽  
J. Yang ◽  
G. Yang ◽  
Chun Xiang Cui
Keyword(s):  
Product Development ◽  
Design Process ◽  
Integrated Design ◽  
Global Market ◽  
Integrated Modeling ◽  
Design Stage ◽  
Time Interval ◽  
Product Modeling ◽  
Early Design ◽  
Design Activities

In today’s highly volatile global market, design activities become more and more important in the whole lifecycle of product. The process of different developments should adopt appropriate modeling approaches at each stage. Different modeling technologies exert a great impact on different design stages. Therefore, modeling design is crucial to achieve success in the process of product development. This paper presents an integrated modeling of design process for product development. Its objective is to realize concurrent design towards ever-growing demands of market that has already integrated design process and production activities. It can manage to develop product towards early design activities. Different design stage model relations and activities are presented for product development. At first, the characteristics of different development stages are analyzed. The performances and attributes of product are established through considering component, constraints and environment. Second, the process of product modeling is described in detail for early design, and the time interval between the two activities is evaluated for concurrent engineering during the design modeling. Third, a promising framework is given to describe the process of design. Finally, an application example and knowledge are presented to illustrate the process of product development.

Performance Evaluation Model for Efficient Eco-Design Tool Integration

2013 ◽  
Author(s):  
Virginie Goepp ◽  
Bertrand Rose ◽  
Emmanuel Caillaud
Keyword(s):  
Performance Evaluation ◽  
Product Development ◽  
Design Process ◽  
Evaluation Model ◽  
Performance Model ◽  
Design Tool ◽  
Performance Evaluation Model ◽  
Development Processes ◽  
Study Case ◽  
General Studies

In the actual context, eco-design that focuses on the integration of environmental considerations into product development becomes a major stake for many companies. In order to make things happen, eco-design tools have to be made available for the product designers and for the working situations in product development processes. The research in the field proposes a lot of tools without dealing with their proper integration into a given design process. To succeed in requires evaluating their contribution to the eco-design process performance. Therefore, the objective of the paper is to propose a performance evaluation models. It is based on the analysis of general studies on design performance and the adaptation of the GAMETH® framework. The performance model proposed consists in evaluating the knowledge used and produced for each activity of a given design process, according to seven criteria related to time, cost, quality and contribution to the design objectives. A study case illustrates how the propositions made here can be applied.

Design Process Error-Proofing: Failure Modes and Effects Analysis of the Design Process

2003 ◽  
Author(s):  
Lawrence P. Chao ◽  
Kosuke Ishii
Keyword(s):  
Product Development ◽  
Design Process ◽  
Systematic Approach ◽  
Failure Modes ◽  
Knowledge Analysis ◽  
Process Error ◽  
Development Processes ◽  
Product Development Processes ◽  
Error Proofing

This paper presents a new application of Failure Modes and Effects Analysis (FMEA) on product development processes. Our research develops error-proofing methods for product development processes to prevent serious design errors that compromise project features, time, or cost. Design process FMEA categorizes design errors in six areas: knowledge, analysis, communication, execution, change, and organization errors. The paper explains the method, illustrates it with an example, and discusses its effectiveness. The paper concludes with the proposed work to address the existing lack of a systematic approach to design process error-proofing.

scholarly journals A Port-Based Agent Approach to Guiding Concept Generation for Customizing Modular Varieties

2010 ◽  
Author(s):  
Dongxing Cao ◽  
Karthik Ramani ◽  
Ming Wang Fu ◽  
Runli Zhang
Keyword(s):  
Product Development ◽  
Conceptual Design ◽  
Design Process ◽  
Collaborative Design ◽  
Product Configuration ◽  
Design Stage ◽  
Concept Generation ◽  
Product Decomposition ◽  
Solution Generation ◽  
New Concepts

As the description of design requirements at the earlier design stage is inaccurate and vague, it is difficult to figure out functional structure of a product and make sense product configuration. Therefore, it plays an important role to formally represent the process of design for product development in the conceptual design stage. Furthermore, port, as the location of intended interaction, is crucial to capture component concept and realize conceptual design for multi-solution generation. Agent is considered as an effective approach to collaboratively implementing design problem solving and reasoning. Combining both port and agent may be employed to generate new concepts of the product in order to customize product scheme varieties. In this paper, the product module attributes are firstly described. The objective is to implement modeling of design process for obtaining system new concepts to guide multi-solution generation. Secondly, an effective approach to decomposing design process is presented to describe the process of structure generations and product decomposition by formal representation. According to properties of modularity for product development and component connections, we can calculate the number of component connections and density of components. In addition, product module division and coupling degree analysis are conducted, and coupling degrees are calculated by considering the correspondence ratio and the cluster independence. A port-based knowledge building process is described for functional modeling. A port-agent collaborative design framework is given and describes different agent functions to help designers to obtain new design schemes. Finally, a case study is presented to describe the modeling process of conceptual design.

PML in Application: An Example of Integral Sheet Metal Design With Higher Order Bifurcations

2008 ◽  
Author(s):  
Reiner Anderl ◽  
Jochen Raßler ◽  
Thomas Rollmann ◽  
Zhenyu Wu
Keyword(s):  
Product Development ◽  
Sheet Metal ◽  
Process Modeling ◽  
Object Oriented ◽  
Higher Order ◽  
Modeling Languages ◽  
Product Modeling ◽  
Complex Product ◽  
Development Processes ◽  
Metal Design

Processes are very important for the success within many business fields. They define the proper application of methods, technologies, tools, and company structures in order to reach business goals. Not only manufacturing processes have to be defined from the start point to their end, also other processes like product development processes need a proper description to gain success. For example in automotive industries complex product development processes are necessary and defined prior to product development. Over the last decades several product modeling languages have been developed moving to object oriented modeling languages, such as UML, but the used process modeling languages are still procedural. The paradigm shift caused by object oriented description within product modeling languages has to be transferred to process modeling languages. This paper describes an object oriented approach for process modeling, referred to as PML and its application to a complex product development and production process for integrated sheet metal design of higher order bifurcations. Using UML as a starting point an object oriented process modeling method is differentiated. The basic concepts which are needed for process modeling are put into an object oriented context and are explained. The paper gives an outlook, what can be achieved by the new approach.

The Monitoring of Information Transfers to Control Design Progress During Product Development

2010 ◽  
Author(s):  
Khadidja Grebici ◽  
Onur Hisarciklilar ◽  
Vincent Thomson
Keyword(s):  
Product Development ◽  
Design Process ◽  
Concurrent Engineering ◽  
Development Process ◽  
Control Design ◽  
Product Development Process ◽  
Earned Value ◽  
Development Processes ◽  
Continuous Progress ◽  
Information Transfers

Uncertainty and complexity are inherent characteristics of a modern product development process. Concurrent engineering necessitates the use of interim information that may be incomplete, provisional, inconsistent and unreliable for the purpose of the tasks at hand. Mechanisms that allow actors in the design process to exchange interim information while being able to estimate the remaining risk of rework is of great importance to ensure robust decision making and to realize continuous progress. However, product development processes are traditionally managed through the use of milestone, or earned value methods without enabling the measurement as well as the capture of progress according to the state of progress of design tasks. The present paper presents a new methodology for monitoring interim information transfers. The approach supports design process planners by providing them with a monitoring system to control when interim information should be released, with which pace, and at which point of progress. This takes into account the criticality of information that is one of the main drivers of rework risk.

scholarly journals Impact of rapid manufacturing on design for manufacture for injection moulding

2003 ◽  
Vol 217 (4) ◽  
pp. 453-461 ◽  
Author(s):  
S Mansour ◽  
R Hague
Keyword(s):  
Product Development ◽  
Design Process ◽  
Injection Moulding ◽  
Research Work ◽  
Design Stage ◽  
Rapid Manufacturing ◽  
Development Cycle ◽  
Engineering Environment ◽  
Product Development Cycle ◽  
The Impact

Rapid manufacturing (RM) employs similar technologies and processes to rapid prototyping (RP), hence resulting in a tool-less manufacturing process. This is achieved by assuming that RP machines have been converted to proper manufacturing machines. The current approaches to the design process, product development cycle and manufacturing considerations at the design stage within a concurrent engineering environment are closely examined. An attempt is then made to investigate the effect of the RM processes on the design process and product development cycle. This is further expanded to consider the impact of RM on rules and guidelines that have been established for design for manufacturing (DFM). This paper is limited to a comparison of RM with regards to injection moulding as RM is most likely to compete with this process in the first instance. This is the first research work to investigate the impact of RM on the design process.

Experience Design Applied to Research

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Andrea CAPRA ◽  
Ana BERGER ◽  
Daniela SZABLUK ◽  
Manuela OLIVEIRA
Keyword(s):  
Information Technology ◽  
Product Development ◽  
Design Process ◽  
Development Process ◽  
Product Development Process ◽  
Experience Design ◽  
Low Resolution ◽  
Design Concepts ◽  
Innovative Products ◽  
Technological Products

An accurate understanding of users' needs is essential for the development of innovative products. This article presents an exploratory method of user centered research in the context of the design process of technological products, conceived from the demands of a large information technology company. The method is oriented - but not restricted - to the initial stages of the product development process, and uses low-resolution prototypes and simulations of interactions, allowing users to imagine themselves in a future context through fictitious environments and scenarios in the ambit of ideation. The method is effective in identifying the requirements of the experience related to the product’s usage and allows rapid iteration on existing assumptions and greater exploration of design concepts that emerge throughout the investigation.

Truck Redesign Case: Simulating the Target Costing Process in a Product Design Environment

2013 ◽  
Vol 29 (1) ◽  
pp. 61-85 ◽  
Author(s):  
Patricia Everaert ◽  
Dan W. Swenson
Keyword(s):  
Product Development ◽  
Product Design ◽  
Goal Setting ◽  
Cost Reduction ◽  
Data Availability ◽  
Design Stage ◽  
Target Costing ◽  
Design Environment ◽  
Goal Setting Theory ◽  
Setting Theory

ABSTRACT This active learning exercise simulates the target costing process and demonstrates how a management theory (goal setting theory) is relevant to a business improvement initiative (target costing). As part of the target costing simulation, student participants work in teams to address a business issue (product development) that moves across functional boundaries. The simulation begins with students learning how to assemble a model truck and calculate its product cost using activity-based costing. Students are then divided into teams and instructed to reduce the truck's cost through a redesign exercise, subject to certain customer requirements and quality constraints. Typically, the teams achieve cost reduction by eliminating unnecessary parts, by using less expensive parts, and by using less part variety. This exercise provides a unique opportunity for students to actively participate in a redesign exercise. It results in student teams creating a wide variety of truck designs with vastly different product costs. The case ends by having a discussion about target costing, goal setting theory, and the implications of the target costing simulation. This simulation contains a number of specific learning objectives. First, students learn how the greatest opportunity for cost reduction occurs during the product design stage of the product development cycle. Second, students see firsthand how design-change decisions affect a product's costs, and the role of the cost information in guiding those decisions. Third, students experience the cross-functional interaction that occurs between sales and marketing, design engineering, and accounting during product development. Finally, this exercise helps students understand the concept of target costing. The simulation is appropriate for undergraduate or graduate management accounting classes. Data Availability:  For more information about this case, contact the first author at [email protected].

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