The Downstream Digital Mock-Up: A New Concept to Support Virtual Reality Applications in the Aeronautic Industry

2004 ◽  
Author(s):  
G. Drieux ◽  
J.-C. Le´on ◽  
N. Chevassus ◽  
F. Guillaume
Keyword(s):  
Virtual Reality ◽  
Product Development ◽  
Concurrent Engineering ◽  
Development Process ◽  
Numerical Models ◽  
The Other ◽  
Product Development Process ◽  
Design Decision ◽  
Engineering Organizations ◽  
Development Phases

The Digital Mock-Up (DMU), which is a comprehensive numerical model describing the final manufactured product, is today widely used in the industry (like the automotive and aeronautic industries) to support the concurrent engineering organizations and processes. On the other hand, simulation helps in the development of a product for design decision making or validation purposes. It allows to determine, with the appropriate level of accuracy, the behavior of the future product under a specific environment or set of exterior actions. Virtual Reality (VR) applications are simulations where the focus is on immersion and interaction with the product. However, there is still lacks in the integration of simulation within the product development phases. In particular the link between the DMU and the numerical models for simulation in the large is often hardly achieved. For some types of simulation, it is even inexistent. In this paper, we propose a new object, the Downstream Digital Mock-Up (DDMU), based on a polyhedral representation, and we show that it can be a support for the integration of a subset of simulation activities within the product development process by making the link between the DMU and these simulations. In the particular case of VR, we show that this object is particularly adapted. One particularity of the DDMU is to be prepared for a specific target application, defined by its objectives and the context in which it is immersed.

scholarly journals Virtual Reality and Digital Human Modeling for the Physical Ergonomic Analysis in Product Development in Industry: A Systematic Review

2021 ◽  
Author(s):  
Adailton da Silva ◽  
Marcus Mendes ◽  
Ingrid Winkler
Keyword(s):  
Systematic Review ◽  
Virtual Reality ◽  
Product Development ◽  
Development Process ◽  
Product Development Process ◽  
Digital Human Modeling ◽  
Human Modeling ◽  
Physical Ergonomics ◽  
Development Phases ◽  
Digital Human

The efficacy of the product development process is measured by the ability to launch a project with product and production process specifications that could guarantee that the manufacturing can produce it with the least impact. If a problem is detected late, they bring consequences beyond the high cost of the solution, if related to physical ergonomics, which will influence the well-being of operators, productivity, and quality. Virtual Reality (VR) and Digital Human Modeling (DHM) are ones of the enabling technologies of Industry 4.0 and has already been applied on a large scale in industries such as automotive, construction, and aeronautics. However, even though the huge applications, these technologies are not yet applied by these industries for the analysis of physical ergonomics during product development phases. This study aims to characterize the state of the art and technology about the application of Virtual Reality and Digital Human Modeling for the physical ergonomics analysis in the during product development phases in the industry through a systematic review of the literature and patents. In patent documents recovery, we used Derwent Innovation database. The research is based on searching the selected terms in the title, summary, and claims of the documents through a search strategy containing IPC code and keywords. In articles recovery, we searched ScienceDirect, Springer, and IEEExplore databases for scientific publications. The search resulted in 311 patents documents and 16 articles in the scientific database. This study analyzed the patents to map out the technological progress in this area, where we found in the charts and data an increasing number of publications per year and a spread application with a considerable number of new technologies presented in these recent patents. The literature review indicated that Virtual Reality technology complements the Digital Human Modeling during physical ergonomics analysis for manufacturing process already designed. The majority of research on the use of VR and DHM technologies for physical ergonomics analysis focus on the automotive industry and the ergonomic assessment of workstations and current processes. Further research is needed to investigate how Virtual Reality and Digital Human Modeling might assist in the understanding of physical ergonomics in certain tasks throughout the product development process, such as the simulation of worker posture or effort when assembling parts.

Integrating Market Research With the Product Development Process: A Step Towards Design for Profit

2001 ◽  
Author(s):  
Satyandra K. Gupta ◽  
Anoop K. Samuel
Keyword(s):  
Product Development ◽  
Decision Model ◽  
Market Research ◽  
Development Process ◽  
Measurement Techniques ◽  
Product Development Process ◽  
Evaluation Procedure ◽  
Conjoint Measurement ◽  
Design Decision ◽  
Design Option

Abstract This paper describes a systematic approach for integrating market research with the product development process. The following three problems are addressed in this paper. First, a demand estimation algorithm has been developed based on conjoint measurement techniques. Second, an integrated design decision model has been developed. The main components of this design decision model are representation of available design options using AND/OR tree based representation, and an evaluation procedure for evaluating profit resulting from a design option. Third, a heuristic search technique has been developed that makes use of the design decision model to select the design option that maximizes the profit. Integration of market research with the product development process is expected to result in the following two benefits. First, it will reduce the number of design iterations. Second, it will help the design team in finding the most profitable product designs.

Managing concurrent execution of multiple activities in product development process

2020 ◽  
Vol 28 (3) ◽  
pp. 210-221
Author(s):  
Gyesik Oh ◽  
Yoo Suk Hong
Keyword(s):  
Product Development ◽  
Concurrent Engineering ◽  
Information Transfer ◽  
Process Model ◽  
Development Process ◽  
Developmental Process ◽  
Quantitative Model ◽  
Product Development Process ◽  
Optimal Decision ◽  
Concurrent Execution

Many companies adopt concurrent engineering in their product-development projects in order to reduce time to market. Concurrent engineering requires careful management, since the uncertainty of transferred information leads to rework and renders a development process complex. Most of the existing studies on concurrent engineering have analyzed overlapping between two activities. The present study expanded the research scope by modeling the developmental process of the concurrent execution of multiple activities as the result of management decisions, the overlapping ratio, and the information transfer frequency. When multiple activities are overlapped, it is more difficult to model a development process, since the uncertainty of cascaded information has impacts on many activities. The quantitative model developed in the present study provides insights into the uncertainty of information and the product-development process. Based on the generalized process model for multiple-activity overlapping, the optimal decision to minimize project duration was considered. As a solution to the dilemma of the high computational burden of considering all feasible decision sets, this paper proposes a myopic heuristic. The project management heuristic proposed in this paper is intended to assist managers in the decision-making process, as well as reducing the intermediate deadlines in project main plan.

Lean Value Creation in the Product Development Process With the Principle of Set Based Concurrent Engineering

2011 ◽  
Author(s):  
Tianyi Cai ◽  
Theodor Freiheit
Keyword(s):  
Product Development ◽  
Development Strategy ◽  
Value Creation ◽  
Concurrent Engineering ◽  
Development Process ◽  
Management Control ◽  
Product Development Process ◽  
A Value ◽  
Feasible Solutions ◽  
Functional Teams

Lean value creation requires a value-adding network of lean activities across the whole Product Development Process (PDP). Management needs to allocate resources and properly control the process to create the value that stakeholders desire. Leading companies in industry have successfully applied Set-Based Concurrent Engineering (SBCE) for lean PDP. In SBCE, designers propose several feasible solutions and develop them relatively independently and in parallel, and then gradually narrow the sets of solutions based on updated project feedback at each stage-gate design review. As an important lean concept with many advantages, SBCE has constraints that can jeopardize lean value creation. For instance, it is unclear how resources are allocated to each stage, different functional teams, and different value creation activities related to different kinds of value, which can cause waste of talent, time, and money. This paper focuses on how resources can be allocated to SBCE by viewing product development activities as value creation cells. Under management control, lean value creation activities use knowledge and other resources to produce valuable design solutions. A mathematical feedback control model is proposed to illustrate how management can invest resources for the value creation process. This model can be used to explore resource allocation to functional teams and processes according to a holistic value creation project development strategy and the optimal creation of lean value.

scholarly journals The Impact of Concurrent Engineering Strategy on New Compex Product Development Process in Organization: An Empirical Study of Manufacturing and Service Industry in Malaysia

2013 ◽  
Vol 61 (1) ◽  
Author(s):  
Amran Rasli ◽  
Saif ur Rehman Khan ◽  
Tan Owee Kowang
Keyword(s):  
Product Development ◽  
New Product Development ◽  
Concurrent Engineering ◽  
Development Process ◽  
Service Industry ◽  
Reliability And Validity ◽  
New Product ◽  
Product Development Process ◽  
The Impact ◽  
New Product Development Process

Taking into account the customers, supplier and organization involvement in the new product development (NPD), this article focuses on the synthesis, evaluation, and selection of various sub-factors of concurrent engineering involved in new product development process. The aim of this study was to provide the reliability and validity of six sub-factors of concurrent engineering model of the 49-item questionnaire and to analyze its association with concurrent engineering and new product development process in a sample of 35 manufacturing and services organization located in Johor, Malaysia. Methods: A self reported survey was conducted in 35 manufacturing and services organization located in Johor, Malaysia. Results: Appropriate internal consistencies of the six sub-scales: customers relationship, team development, continuity, tools and techniques, suppliers involvement and corporate focus and their association with concurrent engineering, were obtained. Zero-order correlation and regressions analysis replicated the theoretically assumed structure of the effective concurrent engineering (ECE). Evidence of criterion validity was obtained from cross-correlations of the scales and from their linear and multiple regression analysis. Finally, all seven scales were associated with a highly significant ratio of concurrent engineering as predicted by fundamental theory. Conclusion: Based on the results of this study the seven version of the model, questionnaire is considered a reliable and valid instrument for measuring association in developing the new complex product development process.

Concurrent Design and Manufacturing for Mechanical Systems

1999 ◽  
Author(s):  
Kuang-Hua Chang ◽  
Javier Silva ◽  
Ira Bryant
Keyword(s):  
Decision Making ◽  
Product Development ◽  
Product Design ◽  
Development Process ◽  
Product Performance ◽  
Product Development Process ◽  
Concurrent Design ◽  
Manufacturing Cost ◽  
Design Decision ◽  
Design And Manufacturing

Abstract Conventional product development process employs a design-build-break philosophy. The sequentially executed product development process often results in a prolonged lead-time and an elevated product cost. The proposed concurrent design and manufacturing (CDM) process employs physics-based computational methods together with computer graphics technique for product design. This proposed approach employs Virtual Prototyping (VP) technology to support a cross-functional team analyzing product performance, reliability, and manufacturing cost early in the product development stage; and conducting quantitative trade-off for design decision making. Physical prototypes of the product design are then produced using Rapid Prototyping (RP) technique primarily for design verification purposes. The proposed CDM approach holds potential for shortening the overall product development cycle, improving product quality, and reducing product cost. A software tool environment that supports CDM for mechanical systems is being built at the Concurrent Design and Manufacturing Research Laboratory (http://cdm.ou.edu) at the University of Oklahoma. A snap shot of the environment is illustrated using a two-stroke engine example. This paper presents three unique concepts and methods for product development: (i) bringing product performance, quality, and manufacturing cost together in early design stage for design considerations, (ii) supporting design decision-making through a quantitative approach, and (iii) incorporating rapid prototyping for design verification through physical prototypes.

Re-engineering the product development process with ‘design for X‘

1998 ◽  
Vol 212 (4) ◽  
pp. 259-268 ◽  
Author(s):  
G Q Huang ◽  
K L Mak
Keyword(s):  
Product Development ◽  
Concurrent Engineering ◽  
Development Process ◽  
Good Practice ◽  
Product Development Process ◽  
Main Role ◽  
Design For X ◽  
Dynamic Transformation ◽  
Engineering Environment

Shortcomings of sequential engineering and advantages of concurrent engineering in product development have become better understood. However, the transformation from a sequential engineering environment to a concurrent engineering environment remains challenging. A dynamic transformation approach by combining the focused application of ‘design for X’ (DFX) with the extensive use of business process re-engineering (BPR) is discussed in this paper. The main role of DFX is to provide the drive, focus, vision and concurrence necessary for BPR, while the main role of BPR is to institutionalize good practice and make improvement permanent and continuous.

scholarly journals A Review of Requirements and Approaches for Realistic Visual Perception in Virtual Reality

2019 ◽  
Vol 1 (1) ◽  
pp. 1893-1902
Author(s):  
Benjamin Gerschütz ◽  
Marius Fechter ◽  
Benjamin Schleich ◽  
Sandro Wartzack
Keyword(s):  
Virtual Reality ◽  
Visual Perception ◽  
Product Development ◽  
Engineering Design ◽  
Real World ◽  
Development Process ◽  
Product Development Process ◽  
Virtual Reality Technology ◽  
Input And Output ◽  
Industrial Context

AbstractThe amount of new virtual reality input and output devices being developed is enormous. Those peripherals offer novel opportunities and possibilities in the industrial context, especially in the product development process. Nevertheless, virtual reality has to face several problems, counteracting reliable use of the technology, especially in ergonomic and aesthetic assessments. In particular, the discrepancies in perception between the real world and virtual reality are of great importance.Therefore, we discuss these most important issues of current virtual reality technology and highlight approaches to solve them. First, we illustrate the use cases of VR in the product development process. In addition, we show which hardware is currently available for professional use and which issues exist with regard to visual perception and interaction. Derived from the depiction of a perfect virtual reality, we define the requirements to address visual perception and interaction. Subsequently we discuss approaches to solve the issues regarding visual perception and evaluate their suitability to enhance the use of virtual reality technology in engineering design.

Knowledge Driven Design Features for the Product Life Cycle of Engine Parts

2009 ◽  
Author(s):  
Jan Tim Jagenberg ◽  
Erik A. Gilsdorf ◽  
Reiner Anderl ◽  
Thomas Bornkessel
Keyword(s):  
Product Development ◽  
Product Life Cycle ◽  
Relevant Information ◽  
Product Development Process ◽  
Design Decision ◽  
Aero Engine ◽  
Early Design Stages ◽  
Design Systems ◽  
Development Phases ◽  
Made In

The high competitive pressure in the aero-engine market demands higher quality products in shorter time at lower costs. In order to achieve this, a close integration of the product lifecycle with early design stages is necessary. Decisions made in design have an impact on later lifecycle areas like manufacturing and aftermarket, which a design may not foresee without the relevant information. This leads to avoidable iterations in the product development process. This paper illustrates a concept for a design decision support system on feature level. Key knowledge of different design domains is provided within the available design systems during the product development phases.

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