Analysis of Design for X Methodologies for Complex Assembly Processes: A Literature Review

2014 ◽  
Author(s):  
Usue Aliende Urrutia ◽  
Philip Webb ◽  
Mark Summers
Keyword(s):  
Aerospace Industry ◽  
Daily Basis ◽  
Shop Floor ◽  
Key Factors ◽  
Design Rules ◽  
Complex Assembly ◽  
Design For Manufacture ◽  
Design For X ◽  
Extensive Analysis ◽  
Aerospace Systems

Historically, products have been developed following the “we design it, you build it” approach. Design and production belonged to two independent entities, with no feedback from downstream activities to upstream activities. In order to avoid redesign costs caused by the lack of feedback, pioneer organisations began to apply methodologies such as ‘Design for Assembly’ or ‘Design for Manufacture’ on a daily basis. Over the years, further research has been carried out to refine these generic methodologies adding previously unconsidered perspectives, such as quality, reliability, environmental, etc. which evolved into a concept called ‘Design-for-X’ (DfX). However, existing methodologies have largely focused on simply reducing product’s structural costs, without taking into consideration other important aspects of more complex assembly processes common in the aerospace industry. The complex assembly process that this paper focuses on is the systems’ installation process within the aerospace business. The installation of fuel, electrical and other systems must follow strict aerospace regulations, intra-organisational design rules, safety policies and many more restrictions, which are not considered as key factors in current methodologies. In this paper, we endeavour to provide an extensive analysis of existing DfX methodologies and support our conclusion that there is an opportunity to develop a new methodology which will ease the aerospace systems’ installation process for the shop-floor operator.

Transforming Leader Change Agency Skills and Abilities Through Emotional Intelligence Focused Executive Coaching

2019 ◽  
pp. 452-462
Author(s):  
Colette S. Lees
Keyword(s):  
Emotional Intelligence ◽  
Development Strategy ◽  
Executive Coaching ◽  
Aerospace Industry ◽  
Development Program ◽  
Strategy Development ◽  
Change Agency ◽  
Aerospace Systems ◽  
Leader Change ◽  
Initial Meeting

Sharon Hartley is a UK-based director in the aerospace industry. Following the initial meeting and subsequent conversations regarding the use of emotional intelligence (EI) in leader development, the author was commissioned to design and deliver a bespoke EI Director Development program. Funded by her organization, Goodrich Corporation, later to become UTC Aerospace Systems, the program provided a supported six-month development strategy. Results included an increased ability to use EI and EI competencies for strategy development, and for influencing and driving cultural and organizational change.

Design for manufacture and design for ‘X’: concepts, applications, and perspectives

2001 ◽  
Vol 41 (3) ◽  
pp. 241-260 ◽  
Author(s):  
Tsai-C. Kuo ◽  
Samuel H. Huang ◽  
Hong-C. Zhang
Keyword(s):  
Design For Manufacture ◽  
Design For X

What Speech-Language Pathologists and Caregivers Can Do to Encourage the Eating Process

2008 ◽  
Vol 17 (2) ◽  
pp. 67-73
Author(s):  
Paul Cooke
Keyword(s):  
Health Care ◽  
Nursing Home ◽  
Health Care Professionals ◽  
Family Members ◽  
Daily Basis ◽  
Key Factors ◽  
Speech Language Pathologists ◽  
Hospital System ◽  
Rehabilitation Facility ◽  
Present Focus

Abstract This article highlights key factors individuals with dysphagia face on a daily basis and discusses ways in which speech-language pathologists, other health care professionals, and family members can encourage these individuals to eat and drink. The present focus is on those patients who are partially or totally eating and drinking orally. They may or may not be feeding themselves and may reside in a variety of settings, including: their home, with family members, at various levels within the hospital system, in a rehabilitation facility, and/or in a nursing home. Various proactive strategies are provided that will benefit caregivers assisting individuals with dysphagia.

Evolution of Design for X Tools Applicable to Design Stages: A Literature Review

2010 ◽  
Author(s):  
Ming-Chuan Chiu ◽  
Gu¨l E. Okudan
Keyword(s):  
Lead Time ◽  
Design Stage ◽  
Product Cost ◽  
Design For Manufacture ◽  
Design For X ◽  
Quality Maintenance ◽  
Total Product ◽  
Big Picture ◽  
Downstream Development ◽  
Made In

Design stage is very critical as many decisions impacting the downstream development activities and the product cost are made in this stage. Over the years, numerous “Design for X (DfX)” concepts/methods have been developed in order to increase the efficiency at the design stage, and reduce the total product cost and development lead time. Design for manufacture, assembly, quality, maintenance, environment, obsolescence and recyclability, etc. are among these. Despite the availability of these numerous concepts/methods, a “big picture” to illustrate the relations and the interactions among these X factors remains absent. In the paper, we attempt to provide our version of this “big picture” along with maturity and trajectory of these factors as identified from the published literature.

Possible Sources of Sub-Optimisation in Design for Manufacture: An Initial Survey

2001 ◽  
Author(s):  
M. J. Gregory ◽  
I.-S. Fan
Keyword(s):  
Shop Floor ◽  
Journal Articles ◽  
Technical Problems ◽  
Design For Manufacture ◽  
Sources Of Knowledge ◽  
Potential Problems ◽  
Comprehensive Manner ◽  
Initial Survey ◽  
Conference Papers ◽  
Structured Approach

Abstract This paper surveys the human and technical problems that may occur in manufacturing and how they may be prevented in design. Advice and guidance on Design for Manufacture was sought from textbooks, journal articles and conference papers that aim to improve the process or report on difficulties. Potential problems are classified and related to the sources of knowledge available to prevent these problems reaching the shop floor. The detail analysis is presented in this paper. This structured approach could assist in planning CE processes, especially communications and teamworking, so that potential problems are addressed in a comprehensive manner so as to minimise the costs, effort and delay needed to avoid them.

Function Based Risk Assessment and Failure Prediction for Unmanned Space Missions

2004 ◽  
Author(s):  
Scott J. Uder ◽  
Robert B. Stone ◽  
Irem Y. Tumer
Keyword(s):  
Risk Assessment ◽  
Conceptual Design ◽  
Design Method ◽  
Aerospace Industry ◽  
Mission Planning ◽  
Spacecraft Design ◽  
Failure Prevention ◽  
Step Procedure ◽  
Aerospace Systems ◽  
Unmanned Spacecraft

A strong need has emerged in the aerospace industry for a well-founded and effective failure prevention technique or process that can be employed during the conceptual design of high-risk aerospace systems. In this paper, we describe a methodology to support risk assessment and failure prevention during the earliest stages of spacecraft design and mission planning. The three-step procedure, an extension of the Function-Failure Design method, utilizes detailed information from existing subsystems and systematically abstracts this information to a level that can be used during conceptual design. During this process, we address the issue concerning the level at which systems containing a combination of electrical and mechanical components should be functionally modeled. The complete method is described in general before being applied to two major unmanned spacecraft subsystems.

A Survey of Outdoor Sportswear Requirement for Chinese Consumers

2012 ◽  
Vol 479-481 ◽  
pp. 676-679 ◽  
Author(s):  
Zheng Liu
Keyword(s):  
Data Processing ◽  
Key Factors ◽  
Chinese Consumers ◽  
Design Rules ◽  
Outdoor Sports ◽  
The People

With economic growing and health conscious being popular among the people, more and more persons are attracted to attending outdoor sports in China. For enhancing function and comfort of sportswear, this paper focuses on acquiring the requirement of Chinese consumers from both fabric and pattern aspects. Through the customers’ questionnaire and visiting the retailer shop, we investigate status conditions during outdoor sporting such as environment, sports strength and et al. After analyzing the investigated results with data processing, the demands that consumer’s desired was excavated. According to the demands, the key factors of clothing for outdoor sports are confirmed. Design rules for improved sportswear performance are presented.

scholarly journals Regression Analysis and urban air quality forecasting: an application for the city of Athens

2013 ◽  
Vol 4 (2) ◽  
pp. 153-162 ◽  
Keyword(s):  
Air Quality ◽  
Urban Areas ◽  
Regression Models ◽  
Concentration Level ◽  
Daily Basis ◽  
Final Model ◽  
Extensive Analysis ◽  
The City ◽  
Athens Area ◽  
Selection Of

Air pollution forecasts in major urban areas are becoming a problem concerning the day to day environmental management for city authorities. This paper describes the development of an application to forecast the peak ozone levels with the aid of meteorological and air quality variables, in the Greater Athens Area. For this purpose, a number of regression models were considered, while the selection of the final model was based on extensive analysis and on literature. The model adapted includes variables that are available on a daily basis, so as daily operational maximum ozone concentration level forecast can be achieved.

A Team-Based Design for Manufacture Methodology

2000 ◽  
Author(s):  
E. Appleton ◽  
J. A. Garside
Keyword(s):  
Cost Saving ◽  
Case Material ◽  
Design Stage ◽  
Shop Floor ◽  
Manufacturing Costs ◽  
Design For Manufacture ◽  
Production Stage ◽  
Full Benefit ◽  
The Cost ◽  
Design And Production

Abstract It is now widely accepted that the majority of the cost involved in manufacture is determined in the design stage. Although it is obviously important to keep assembly and manufacturing costs as low as possible, by the effective and efficient use of operators and automation, in many ways, attempting cost saving at the production stage is equivalent to ‘closing the stable door after the horse has bolted’. Design for manufacture has existed since manufacture began. Indeed, much of the skill of the early craftsmen was based upon a knowledge of how to use processes efficiently. As design and production evolved into separate functions within manufacture the knowledge about efficient use of processes was retained by designers because of their shop floor experience. As design has become more complex, specialised function knowledge about how to design to make manufacture efficient has manifested itself in case material and hints on what not to do. Generally these hints are focused on particular processes. More recently these hints and guides have been collected together in a systematic way. Pioneers such as Boothroyd and Dewhurst (1) have been educating industry on the matter of Design for Manufacture and Assembly (DFMA) for many years and a considerable awareness has been created. At the present time DFMA is widely recognised but take up of the methods has been less than necessary if the full benefit is to be achieved.

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