The Function-Failure Design Method

2004 ◽  
Vol 127 (3) ◽  
pp. 397-407 ◽  
Author(s):  
Robert B. Stone ◽  
Irem Y. Tumer ◽  
Michael Van Wie
Keyword(s):  
Product Development ◽  
Failure Analysis ◽  
Product Design ◽  
Conceptual Design ◽  
Design Methodology ◽  
Failure Modes ◽  
Design Method ◽  
Customer Needs ◽  
Minimum Number ◽  
Novel Design

To succeed in the product development market today, firms must quickly and accurately satisfy customer needs while designing products that adequately accomplish their desired functions with a minimum number of failures. When failure analysis and prevention are coupled with a product’s design from its conception, potentially shorter design times and fewer redesigns are necessary to arrive at a final product design. In this article, we explore the utility of a novel design methodology that allows failure modes and effects analysis (FMEA)-style failure analysis to be conducted during conceptual design. The function-failure design method (FFDM) guides designers towards improved designs by predicting likely failure modes based on intended product functionality.

Going Back in Time to Improve Design: The Elemental Function-Failure Design Method

2003 ◽  
Author(s):  
Michael E. Stock ◽  
Robert B. Stone ◽  
Irem Y. Tumer
Keyword(s):  
Failure Analysis ◽  
Knowledge Base ◽  
Product Design ◽  
Conceptual Design ◽  
Failure Modes ◽  
Design Method ◽  
Design Stage ◽  
Improve Design ◽  
Design Cycle ◽  
Potential Improvement

In today’s world it is more important than ever to quickly and accurately satisfy customer needs when launching a new product. It is equally important to design products that adequately accomplish their desired functions with a minimum amount of failures. When failure analysis and prevention are coupled with a product design from its conception, shorter design times and fewer redesigns are necessary to arrive at a final product design. In this article, we explore the potential of a novel design methodology to guide designers toward new designs or redesigns that avoid failures. The Elemental Function-Failure Design Method (EFDM) is based on functional similarity of the product being designed to failed products within a knowledge base. The idea of using component functionality to explore the failure space in design was first introduced as a function-failure analysis approach by Tumer and Stone (2003). The overall approach offers potential improvement over current failure analysis methods (FMEA, etc.), because it can be implemented hand in hand with other conceptual design steps and carried throughout a product’s design cycle. In this paper, this idea is formalized into a systematic methodology that is specifically tailored for use at the conceptual design stage before any physical design choices have been made, hence moving failure analysis earlier in the design cycle. In the following, formalized guidelines for using the EFDM will be outlined for use in new designs and for redesign in existing products. A function-failure knowledge base, derived from actual failure occurrences for Bell 206 rotorcraft will be introduced and used to derive potential failure modes in a comparison of the EFDM and traditional FMEA for two design examples. This comparison will demonstrate the EFDM’s potential in conceptual design failure analysis.

The Function-Human Error Design Method (FHEDM)

2018 ◽  
Author(s):  
Nicolás F. Soria Zurita ◽  
Robert B. Stone ◽  
Onan Demirel ◽  
Irem Y. Tumer
Keyword(s):  
Human Error ◽  
Failure Modes ◽  
Design Method ◽  
Human Interaction ◽  
Human Errors ◽  
Minimum Number ◽  
Potential Failure ◽  
Human Function ◽  
Product Interaction ◽  
Novel Design

During the design of products and systems, engineers must quickly and accurately satisfy customer needs while adequately developing the required system functions with the minimum number of failures. Identifying potential failure modes during early design stages is essential to create reliable designs. Different engineering methodologies such as Failure Modes and Effects Analysis (FMEA), allows engineers to identify how a set of components could fail. These methods are popular and commonly used in industry. However, such methodologies fail to recognize potential failure modes caused by human-product interaction. During the design of products, there is often a lack of sufficient attention to the human-product interaction. Even though human factors are considered during the design process, most of the design approaches fail to incorporate the human interaction correctly. In this research, we explore the implementation of a novel design methodology named Function-Human Error Design Method (FHEDM), which identifies possible generic human errors while completing a functional decomposition of the product. This method will provide engineers with useful information about potential failure modes caused by human-function interaction during early conceptual design.

Research on the Collaborative Design and Application of Inventor Based on Vault

2012 ◽  
Vol 224 ◽  
pp. 367-370
Author(s):  
Dong Fang Hu ◽  
Deng Kun Li
Keyword(s):  
Product Development ◽  
Product Design ◽  
Collaborative Design ◽  
Design Method ◽  
Data Access ◽  
Development Trend ◽  
Key Technology ◽  
Remote Design ◽  
Design Ideas ◽  
The Development Trend

The networked collaborative design has been the development trend of modern product design, the application of which has been constrained by the data access conflicts. This paper introduced the networked collaborative design method of product based on the Vault, and network collaborative function of Inventor by using the project management. Under the assistance of the Vault, we had solved the key technology of access conflict of networked collaborative design, and realized the remote design between the members of efficient coordination. In this way, we had optimized the design ideas, shortened the product development cycles and improved productivity.

scholarly journals Parametric design methodology for manufacturing of metallic and composite structures

2021 ◽  
Author(s):  
Saptarshi Datta
Keyword(s):  
Product Development ◽  
Case Studies ◽  
Conceptual Design ◽  
New Product Development ◽  
Composite Structures ◽  
Design Methodology ◽  
Design Space ◽  
Optimization Problems ◽  
Functional Requirements ◽  
Development Approach

A parametric, concurrent design methodology for manufacturing of metallic and composite structures is established. Often, during a new product development, designs prepared using the “Sequential” or “Waterfall” approach are rejected or require significant rework during manufacturing, as designers are not always versed with manufacturing principles. Similarly, manufacturers are not always versed in design principles resulting in designs that do not cater to the functional requirements. The goal of this study is to establish a methodology right from the scope to the detailed design for developing manufacturable structures using the “Concurrent Engineering” approach. Existing literature on “Design Optimization for Manufacturing” predominantly focus on single variable optimization problems geared towards conceptual designs. The designs developed through such optimization cater towards functional performance within a “Fixed Design Space” while not accounting for manufacturing or operational challenges. The methodology developed in this study enables “Design for Manufacturing” for “Detailed Designs” through selection of a conceptual design and subsequently optimizing the selected conceptual design for a set of functional parameters. An “Integrated Product Development” approach is used, whereby, the functional requirements are linked to both design and manufacturing variables and optimization is conducted in an “Augmented Design Space” which is not available when only considering design or manufacturing variables. Three case studies involving both “Conceptual” and “Detailed” designs have been used to illustrate the methodology presented. Case I documents the design of a Flight Control System Bracket. Case II illustrates the use of “2D” composite structures to fabricate a roll frame. Case III involves the development of a “3D” composite door for a light unpressurized aircraft. For each of the three case studies a separate development approach has been employed. Case I uses an analytical approach, Case II uses FEM while CASE III employs a hybrid approach comprising of both FEM and analytical techniques.

scholarly journals Design thinking based on reflective level in emotional design

2020 ◽  
Vol 179 ◽  
pp. 02082
Author(s):  
Yi Chen ◽  
Runchu Chen
Keyword(s):  
Product Design ◽  
Design Methodology ◽  
Design Thinking ◽  
Design Method ◽  
Emotional Design ◽  
Self Image ◽  
Current Design ◽  
Level Design ◽  
Narrative Interpretation

This article discusses the connotation and value of reflective level design. By analyzing some products of the four angles of reflective level including self-image expression, reflection of implication and understanding, narrative interpretation and metaphor, this article gives deep reflections of the reflective level product design. Finally, this article proposes a creative product design method based on emotional design, develops and enriches the current design methodology, and provides a new idea and possibility for cultural product design.

A customer needs motivated conceptual design methodology for product portfolio planning

2008 ◽  
Vol 19 (6) ◽  
pp. 489-514 ◽  
Author(s):  
Robert B. Stone ◽  
Ravi Kurtadikar ◽  
Nicholas Villanueva ◽  
Cari Bryant Arnold
Keyword(s):  
Conceptual Design ◽  
Design Methodology ◽  
Product Portfolio ◽  
Customer Needs ◽  
Portfolio Planning

Investigation of Customer Needs Frequency vs. Weight in Product Platform Planning

2003 ◽  
Author(s):  
Ravindra M. Kurtadikar ◽  
Robert B. Stone
Keyword(s):  
Product Development ◽  
Conceptual Design ◽  
Product Family ◽  
Design Stage ◽  
Product Portfolio ◽  
Customer Needs ◽  
Product Platforms ◽  
Conceptual Design Stage ◽  
High Level ◽  
Future Work

Customer satisfaction is key for survival and success in today’s consumer market. It is crucial that the customer be used to differentiate between different variants of a product, also known as a company’s product portfolio. Numerous examples in industry prove the benefit of a platform strategy in product development. The aim is to capture a wider market share by launching a number of products based on a common platform and to reduce design and development cost by reducing design cycle time. In this paper we explore the possibility of using high level customer needs alone to define the product’s base platform and differentiating modules. The basic idea is to outline platform and differentiating modules during conceptual design stage of product development and thus plan a product family before we consider any architecture. Planning platforms in conceptual design stage reduces additional costs associated with designing, manufacturing and managing resources for each variant separately. We use design tools such as the functional basis and functional modeling in our approach. In this work we seek to validate the technique by first applying it to existing products and comparing the results against known product platforms. In this paper we outline platform and differentiating modules for a bike and shop vacuum. Future work will focus on applying this approach for more products and finally to new products during conceptual design stage.

New Progress Concerning Research of Product Design Theory and Methods

2011 ◽  
Vol 121-126 ◽  
pp. 692-700
Author(s):  
Bang Chun Wen ◽  
Xiao Peng Li ◽  
Zong Yan Wang
Keyword(s):  
Product Design ◽  
Design Theory ◽  
Design Methodology ◽  
Deep Layer ◽  
Design Method ◽  
Green Design ◽  
Synthesis Design ◽  
Traditional Design ◽  
Set Up

The product design theory and methods based on “the Scientific Outlook on Development” have been set up by our group in recent 10 years, The new progress concerning Research of product design theory and methods include: 1) QCTES was instead of IQCTES including six requirements of product design; 2) traditional design stages were replaced with four new stages including investigation, planning, implement and inspection; 3) green design was replaced with harmonious design; 4) traditional design method was replaced with deep-layer design method; 5) concept and connotation of product top-layer design were proposed; 6) more detailed contents of product synthesis design method were advanced. We got good effects to apply above product design methodology on many product designs recent years.

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