A process simulation based method for scheduling product design change propagation

2012 ◽  
Vol 26 (3) ◽  
pp. 529-538 ◽  
Author(s):  
Yuliang Li ◽  
Wei Zhao ◽  
Xinyu Shao
Keyword(s):  
Product Design ◽  
Process Simulation ◽  
Change Propagation ◽  
Design Change ◽  
Simulation Based

Risk Analysis of Engineering Change for Distributed Product Design

2020 ◽  
pp. 1-38
Author(s):  
Leilei Yin ◽  
Quan Sun ◽  
Youxiong Xu ◽  
Li Shao ◽  
Dunbing Tang
Keyword(s):  
Product Design ◽  
Change Propagation ◽  
Design Engineering ◽  
Limited Time ◽  
Primary Result ◽  
Engineering Change ◽  
Design Change ◽  
Working Groups ◽  
Simulation Results

Abstract Nowadays customer demand for satisfactory product developed in limited time is rapidly posing a major challenge to product design and more distributed products are developed to address these concerns. In the distributed product design, engineering change (EC) is an inevitable phenomenon and consumes much production time. It is necessary to assess the design change effectively in advance. Some methods and tools to predict and analyze the change propagation influence have been provided. From the perspective of design change duration, our work extends the method of assessing design change by incorporating risk factors from different working groups in multiple design sites, functional maintenance during the change propagation. The primary result of this work is the provision of a design support to acquire the optimal design change scheme by estimating the duration. In this paper, risk factor of distributed design is applied to the influence evaluation of change propagation, which implies an increase of change propagation influence due to the varying levels of expertise, possible lack of communication. Besides, a deterministic simulation model is proposed to assess the change propagation schemes. The model combines the effects of design change parallelism, iteration, change propagation for the distributed product design. Based on the simulation results, a more focused discussion and identification of suitable design change schemes can be made. A case study of an assembly tooling for the reinforced frame is implemented to demonstrated how the developed method can be applied. Finally, the method is initially discussed and evaluated.

Engineering Change Management of Product Design Using Model-Based Definition Technology

2017 ◽  
Vol 17 (4) ◽  
Author(s):  
Leilei Yin ◽  
Dunbing Tang ◽  
Qi Wang ◽  
Inayat Ullah ◽  
Haitao Zhang
Keyword(s):  
Product Design ◽  
Change Propagation ◽  
Prototype System ◽  
Parameter Change ◽  
Engineering Change ◽  
Product Data ◽  
Design Change ◽  
Model Based ◽  
Engineering Change Management ◽  
And Topology

As engineering change (EC) is an inevitable activity in the industry and uses a lot of engineering design resources, the management of EC has become a crucial discipline. In current researches, most of the data related to the product design change are scattered in different forms and the product data are acquired manually from various files in the EC management, which is time-consuming and error-prone. In this work, design change-oriented model-based definition (DCMBD) model is defined as the sole data source. Based on the proposed DCMBD model, this work presents a method to acquire the product changes automatically and evaluate design change propagation proactively in a uniform way. The objective of the proposed method is to effectively and efficiently manage ECs. In this paper, first, DCMBD model is defined specifically, which records the product data: geometry, material, tolerance and annotations, relations of product items, lifecycle data, etc. Then, based on the defined DCMBD model, algorithms are presented to automatically acquire two types of product change: parameter change and topology face change. Next, relation models for the product items (parameter and topology face) are demonstrated. After that, the change propagation in terms of parameters and topology faces are clarified. Meanwhile, indices of parameter change influence (PCI) and topology face change influence (TFCI) are presented to evaluate the change impact. Finally, a prototype system for product design change is developed and a case study is demonstrated to show how the proposed method can be applied to the product design change.

Predictabilty of Change in Engineering: A Complexity View

2005 ◽  
Author(s):  
Claudia Eckert ◽  
John Clarkson ◽  
Chris Earl
Keyword(s):  
Empirical Studies ◽  
Change Propagation ◽  
Design Change ◽  
Design Changes ◽  
Action Model ◽  
Static Background

Design changes can be surprisingly complex. We examine the problems they cause and discuss the problems involved in predicting how changes propagate, based on empirical studies. To assist this analysis we distinguish between (a) a static background of connectivities (b) descriptions of designs, processes, resources and requirements and (c) the dynamics of design tasks acting on descriptions. The background might consist of existing designs and subsystems, or established processes used to create them. The predictability of design change is examined in terms of this model, especially the types and scope of uncertainties and where complexities arise. An industrial example of change propagation is presented in terms of the background (connectivity) - description - action model.

From biogas to biomethane: A process simulation-based techno-economic comparison of different upgrading technologies in the Italian context

2019 ◽  
Vol 135 ◽  
pp. 663-673 ◽  
Author(s):  
Elena Barbera ◽  
Silvia Menegon ◽  
Donatella Banzato ◽  
Chiara D'Alpaos ◽  
Alberto Bertucco
Keyword(s):  
Process Simulation ◽  
Simulation Based ◽  
Italian Context ◽  
Economic Comparison

A Multiple-Domain Matrix Support to Capture Rationale for Engineering Design Changes

2018 ◽  
Vol 18 (2) ◽  
Author(s):  
L. Siddharth ◽  
Prabir Sarkar
Keyword(s):  
Building Blocks ◽  
Knowledge Bases ◽  
Change Propagation ◽  
Design Environment ◽  
Web Based ◽  
Design Change ◽  
Design Changes ◽  
System 2 ◽  
Multiple Domain ◽  
Selection Of

Design changes are necessary to sustain the product against competition. Due to technical, social, and financial constraints, an organization can only implement a few of many change alternatives. Hence, a wise selection of a change alternative is fundamentally influential for the growth of the organization. Organizations lack knowledge bases to effectively capture rationale for a design change; i.e., identifying the potential effects a design change. In this paper, (1) we propose a knowledge base called multiple-domain matrix that comprises the relationships among different parameters that are building blocks of a product and its manufacturing system. (2) Using the indirect change propagation method, we capture these relationships to identify the potential effects of a design change. (3) We propose a cost-based metric called change propagation impact (CPI) to quantify the effects that are captured from the multiple-domain matrix. These individual pieces of work are integrated into a web-based tool called Vatram. The tool is deployed in a design environment to evaluate its usefulness and usability.

Adapting ADA Architectural Design Knowledge to Product Design: Groundwork for a Function Based Approach

2010 ◽  
Author(s):  
Shraddha Sangelkar ◽  
Daniel A. McAdams
Keyword(s):  
Product Design ◽  
Architectural Design ◽  
Body Position ◽  
Analytical Framework ◽  
Consumer Products ◽  
International Classification Of Functioning ◽  
Design Knowledge ◽  
Design Change ◽  
User Activity ◽  
And Function

One in every seven Americans has some form of disability. The number of people with disabilities is expected to increase, perhaps significantly, over the foreseeable future. Nevertheless, persons with a disability remain underserved by consumer products. Product designers fail to design universal products primarily due to a lack of knowledge, tools, and experience with universal design. Though challenges to complete access remain, the design of universal architectural systems reflects a better codification of methods, guidelines, and knowledge than available to universal product design. This article reports research efforts to transfer elements of the design knowledge and tools from universal architectural design to universal product design. The research uses the International Classification of Functioning, Disability, and Health to formally describe user function, the Functional Basis to describe product function, and actionfunction diagrams as an analytical framework to explore the interaction between user activity, limitation, and product realization. The comparison of the universal and typical architectural systems reveal relevant design differences in specific parametric realization, morphology, and function. Of these differences, parametric was the most common with functional the least common. The user activities that most frequently result in a design change are reaching followed by maintaining body position. The comparison of architectural systems to consumer products noted a common trend of a functional design change made in result to the user activity of transferring oneself.

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