Framework of Conceptual Design Methodology for Hybrid Buoyant Aircraft

2016 ◽  
Vol 95 (2) ◽  
pp. 99-110 ◽  
Author(s):  
Anwar Ul Haque ◽  
Waqar Asrar ◽  
Ashraf A. Omar ◽  
Erwin Sulaeman ◽  
Mohamed J. S. Ali
Keyword(s):  
Conceptual Design ◽  
Design Methodology

scholarly journals DEVELOPMENT OF A NEW DESIGN METHODOLOGY FOR LARGE SIZE PRODUCTS BASED ON DSM AND DFMA

2020 ◽  
Vol 1 ◽  
pp. 2315-2324
Author(s):  
B. Mora ◽  
I. Retolaza ◽  
M. A. Campos ◽  
A. Remirez ◽  
M. J. Cabello ◽  
...  
Keyword(s):  
Conceptual Design ◽  
Design Methodology ◽  
Design For Manufacturing ◽  
Design Structure Matrix ◽  
Structure Matrix ◽  
Large Size ◽  
Design Structure ◽  
Long Life

AbstractA new design methodology for long life and large size (Ll-Ls) products called Design for Installation (DfI) is proposed. Ll-Ls products are usually made up of large parts that need to be assembled on field. The proposed methodology, based on adapted Design Structure Matrix (DSM) and Design for Manufacturing and Assembly (DfMA) methods, enables to optimize the design of a Ll-Ls product in order to reduce time and cost of the installation process. The new methodology works with a conceptual design of the product and the weight and size restrictions given by logistic factors as inputs.

A Conceptual Design Methodology for Variety Using TRIZ and QFD

2002 ◽  
Author(s):  
Runhua Tan ◽  
Dieter Kraft
Keyword(s):  
Conceptual Design ◽  
Design Methodology ◽  
Design Model

A method to select a key HOQ of QFD from the existed HOQs for variety of design is introduced first. Evolution of technique (ET) is used to find exciting requirements for the product to be designed and VOC driven by ET is formed. A new conceptual design model is illustrated, which integrate VOC driven by ET, QFD, inventive principles and separation principles of TRIZ. A design example is carried out using the model.

Design of a compact statically balanced direct-drive manipulator

Robotica ◽  
1990 ◽  
Vol 8 (4) ◽  
pp. 347-353
Author(s):  
Tarek M. Abdel-Rahman ◽  
M.A. Elbestawi
Keyword(s):  
Conceptual Design ◽  
Dynamic Characteristics ◽  
High Speed ◽  
Design Methodology ◽  
Dynamic Behaviour ◽  
Design Guidelines ◽  
Kinematics And Dynamics ◽  
Direct Drive ◽  
Static Balancing ◽  
Design Considerations

SUMMARYThis paper addresses the conceptual design of direct-drive manipulators which have good promise for high speed, high precision manipulation. In the design methodology presented, the procedure begins by considering the kinematic aspects and ends by configuring manipulator structures with promising kinematic and dynamic characteristics. Based on the conceptual design considerations, a novel 3 DOF (RRR) direct-drive manipulator is proposed and analyzed. The manipulator structure has only five links and a compact configuration. Manipulator kinematics and dynamics are analyzed. Design guidelines are derived for static balancing of the manipulator and for minimizing the inertias driven by the motors. Operational configurations that either improve or worsen the kinematic and dynamic behaviour or characteristics of the manipulator are identified. The proposed design has an advantage over many currently known direct-drive manipulators for achieving two desirable mechanical features, namely: static balancing and compactness (smaller driven inertias).

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.

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.

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