Selected Disassembly Planning for Product Maintainability

2007 ◽  
Author(s):  
Qingjin Peng ◽  
Chulho Chung
Keyword(s):  
Life Cycle ◽  
Product Development ◽  
Early Stage ◽  
Task Planning ◽  
Functional Requirements ◽  
Support Design ◽  
Selective Disassembly ◽  
Maintainability Analysis ◽  
Manufacturing Environments ◽  
Disassembly Planning

Products are traditionally designed mainly to meet functional requirements with rarely considering maintenance issues for products life-cycle. This paper presents an approach to nondestructive selective disassembly planning for the product maintenance. The approach is based on the part disassemblability analysis. It provides a way to support interactive selective disassembly task planning in dynamic manufacturing environments considering the operation space in applications. To support design at the early stage of product development, this paper also discusses de-manufacturability and maintainability analysis based on the proposed approach. Examples are provided to verify the developed method.

Product Development Task Planning Using Worth Flow Analysis of Interacting Components

2007 ◽  
Author(s):  
Toshiharu Miwa ◽  
Kosuke Ishii
Keyword(s):  
Product Development ◽  
Large Scale ◽  
Early Stage ◽  
Flow Analysis ◽  
Manufacturing Firms ◽  
Trial And Error ◽  
Task Planning ◽  
Feedback Information ◽  
Development Cycle ◽  
Planning Methods

The acceleration of product development cycle continues to be a significant challenge for manufacturing firms around the world. This paper describes a task planning method for minimizing trial and error to reduce the development time in large-scale and complicated product development at the early stage of product development. The proposed method matches the group of product components according to geometry and determines the development sequence of each component to minimize the amount of feedback information across task groups. The method applies as evaluation index for task prioritization the product-sum of engineering interaction among components and worth of each component, the “worth flow.” The paper shows with an example of the generic hair drier with simple mechanical structure that this method contributes to the reduction of the size of task group by 22% and amount of information required for setting the interface links by 65% compared to the conventional planning methods.

scholarly journals EXAMINING THE USER EXPERIENCE OF LIFE CYCLE ASSESSMENT TOOLS AND THEIR ABILITY TO CATER TO ECODESIGN IN EARLY-STAGE PRODUCT DEVELOPMENT PRACTICE

2021 ◽  
Vol 1 ◽  
pp. 1441-1450
Author(s):  
Tejaswini Chatty ◽  
Yingkun Qu ◽  
Hana H. Ba-Sabaa ◽  
Elizabeth L. Murnane
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Product Development ◽  
Thematic Analysis ◽  
Interaction Design ◽  
Early Stage ◽  
Public Awareness ◽  
Assessment Tools ◽  
Unique Approach ◽  
Development Practice

AbstractWith the topic of sustainability steadily gaining importance and public awareness, there is growing consensus about the need to incorporate environmental considerations in early stage product development (PD). This makes it imperative for PD practitioners to have access to methods and tools, including life cycle assessment (LCA), that support sustainability integration. This paper evaluates existing LCA tools on their ability to cater to the early-stage PD context, by having users apply the tools in practice and exploring their experiences. We find that the challenges to applying LCA in this context emanate primarily from the shortcomings of the tools themselves. Our evaluation metrics for tool critique are derived from a thematic analysis of user interviews we conducted, refined according to information and interaction design principles from human-computer interaction (HCI). This unique approach helps triangulate insights from users with literature, to produce design recommendations for the development of novel LCA tools tailored to the early PD context.

Product Development Task Planning Using Worth Flow Analysis

2009 ◽  
Vol 9 (3) ◽  
Author(s):  
Toshiharu Miwa ◽  
Kosuke Ishii
Keyword(s):  
Product Development ◽  
Large Scale ◽  
Early Stage ◽  
Flow Analysis ◽  
Task Planning ◽  
Feedback Information ◽  
Complex Products ◽  
Manufacturing Enterprises ◽  
Development Cycle ◽  
Planning Methods

The acceleration of the product development cycle continues to be a significant challenge for manufacturing enterprises around the world. This paper describes a task planning method that minimizes the number of trial and error to reduce the development time for large-scale and complex products at the early stage of product development. The proposed method matches groups of product components and determines the development sequence for each component to minimize the amount of feedback information required across task groups. The method provides, as evaluation indices for task prioritization, the product-sum of engineering interaction among components and worth of each component, which the authors define as the “worth flow.” A generic hair dryer with simple mechanical structure serves as an example, illustrating that the proposed method contributes to the reduction in the amount of information required for setting the interface links by 65% compared with the conventional planning methods.

scholarly journals A Framework for Life Cycle Cost Estimation of a Product Family at the Early Stage of Product Development

2012 ◽  
Vol 605-607 ◽  
pp. 222-227
Author(s):  
Jaya Suteja The ◽  
Prasad K.D.V. Yarlagadda ◽  
M. Azharul Karim ◽  
Cheng Yan
Keyword(s):  
Life Cycle ◽  
Product Development ◽  
Cost Estimation ◽  
Life Cycle Cost ◽  
Product Life Cycle ◽  
Early Stage ◽  
Estimation Method ◽  
Product Family ◽  
Product Family Design ◽  
The Cost

A cost estimation method is required to estimate the life cycle cost of a product family at the early stage of product development in order to evaluate the product family design. There are difficulties with existing cost estimation techniques in estimating the life cycle cost for a product family at the early stage of product development. This paper proposes a framework that combines a knowledge based system and an activity based costing techniques in estimating the life cycle cost of a product family at the early stage of product development. The inputs of the framework are the product family structure and its sub function. The output of the framework is the life cycle cost of a product family that consists of all costs at each product family level and the costs of each product life cycle stage. The proposed framework provides a life cycle cost estimation tool for a product family at the early stage of product development using high level information as its input. The framework makes it possible to estimate the life cycle cost of various product family that use any types of product structure. It provides detailed information related to the activity and resource costs of both parts and products that can assist the designer in analyzing the cost of the product family design. In addition, it can reduce the required amount of information and time to construct the cost estimation system.

Probabilistic Evaluation of Product Development Task Planning Using Worth Flow Analysis

2008 ◽  
Author(s):  
Toshiharu Miwa ◽  
Hideki Aoyama ◽  
Kosuke Ishii
Keyword(s):  
Product Development ◽  
Large Scale ◽  
Early Stage ◽  
Flow Analysis ◽  
Asymmetric Distribution ◽  
Task Planning ◽  
Feedback Information ◽  
Task Groups ◽  
Development Cycle ◽  
Probabilistic Evaluation

The acceleration of the product development cycle continues to be a significant challenge for manufacturing firms around the world. The present paper describes a task planning method that takes the uncertain relationships among the product components into consideration in order to reduce the development time in large-scale and complicated product development with uncertainty at the early stage of product development. We developed a probabilistic worth flow analysis to evaluate each product component for task prioritization with an uncertain relationship among product components. The method calculates the probabilistic distribution of worth flow of each product component based on the probabilistic relationship among product components with the Monte Carlo simulation and determines the development sequence of each component so as to minimize the possibility with the highest feedback information across the task groups. The present paper describes an example of a generic hair drier with a simple mechanical structure developed using the proposed method in order to reduce the uncertainty of feedback information across the task groups while maintaining the uncertainty within same task groups in case the uncertainty has an asymmetric distribution.

A design contribution to the entrepreneurial experience

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Juan David ROLDAN ACEVEDO ◽  
Ida TELALBASIC
Keyword(s):  
Product Development ◽  
Qualitative Analysis ◽  
Design Research ◽  
Recent Literature ◽  
Early Stage ◽  
Entrepreneurial Activity ◽  
Value Proposition ◽  
Structured Interviews ◽  
User Centric ◽  
Constant Growth

In recent history, different design approaches have been entering fields like management and strategy to improve product development and service delivery. Specifically, entrepreneurship has adopted a user-centric mindset in methodologies like the business canvas model and the value proposition canvas which increases the awareness of the users’ needs when developing solutions. What happens when a service design approach is used to understand the entrepreneurs’ experience through the creation of their startups? Recent literature suggests that entrepreneurial activity and success is conditioned by their local entrepreneurship ecosystem. This study investigates the Entrepreneurship Ecosystem of Medellín, Colombia - an ecosystem in constant growth but that lacks qualitative analysis. The sample consists of 12 entrepreneurs in early-stage phase. The data was gathered with two design research methods: Cultural Probes and Semi-structured interviews. The analysis of the information collected facilitated the development of 4 insights about the entrepreneurs and an experience map to visualise and interpret their journey to create a startup. The results of this study reflected the implications of the ecosystem, the explanation of the users’ perceptions and awareness and propose a set of ideas to the local government to improve the experience of undertaking a startup in Medellín.

Simulations Based Approach for Vehicle Idle NVH Optimization at Early Stage of Product Development

2011 ◽  
Author(s):  
Kumbhar S. Mansinh ◽  
Atul Miskin ◽  
Vishal Vasantrao Chaudhari ◽  
Ashish Rajput
Keyword(s):  
Product Development ◽  
Early Stage
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