A Conceptual Design Methodology for Predicting Bleed and Horsepower Requirements of Military Aircraft Engines

1996 ◽  
Vol 118 (3) ◽  
pp. 481-485
Author(s):  
J. D. Cyrus
Keyword(s):  
Data Base ◽  
Conceptual Design ◽  
Design Methodology ◽  
Design Codes ◽  
Aircraft Engines ◽  
Military Aircraft ◽  
Computer Codes

Conceptual design codes have been developed to provide conceptual design estimates of bleed and horsepower extraction requirements of advanced military aircraft. This paper describes the methodology for the computer codes. The validity of the models was assessed by generating bleed and horsepower estimates for four advanced air-craft configurations not included in the data base and comparing the model estimates to manufacturer’s estimates.

scholarly journals A Conceptual Design Methodology for Predicting Bleed and Horsepower Requirements of Military Aircraft Engines

1995 ◽  
Author(s):  
John D. Cyrus
Keyword(s):  
Data Base ◽  
Conceptual Design ◽  
Design Methodology ◽  
Design Codes ◽  
Aircraft Engines ◽  
Military Aircraft ◽  
Computer Codes ◽  
Aircraft Configurations

Conceptual design codes have been developed lo provide conceptual design estimates of bleed and horsepower extraction requirements of advanced military aircraft. This paper describes the methodology for the computer codes. The validity of the models was assessed by generating bleed and horsepower estimates for four advanced aircraft configurations not included in the data base and comparing the models estimates to manufacturer’s estimates.

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 Order fulfillment errors and military aircraft readiness

2020 ◽  
Vol 4 (1) ◽  
pp. 71-87
Author(s):  
Michael Weber ◽  
Daniel Steeneck ◽  
William Cunningham
Keyword(s):  
Linear Regression ◽  
Department Of Defense ◽  
Design Methodology ◽  
United States Department ◽  
Order Fulfillment ◽  
Military Aircraft ◽  
Content Type ◽  
States Department ◽  
The Impact ◽  
Practical Implications

Purpose This paper aims to measure the effect of supply discrepancy reports (SDRs) on military aircraft readiness metrics, including aircraft availability, not mission capable supply (NMCS) hours, cannibalizations and mission-impaired capability awaiting parts (MICAP) hours. Design/methodology/approach Monthly SDR, NMCS, aircraft cannibalizations and MICAP data from 2009 to 2018 are analyzed using linear regression and independent samples t-tests to examine whether discrepant shipments negatively impact aircraft readiness. Findings Results of linear regression were significant in 4 of 12 analyses, suggesting that SDRs are a significant predictor of increased cannibalizations. Results of independent samples t-tests found MICAP hours were significantly higher on discrepant shipments compared to nondiscrepant shipments in all three analyses. Practical implications This research will increase awareness of the extent to which SDRs degrade aircraft readiness, and provide an opportunity for United States Department of Defense (DoD) supply chain leaders to take action to improve order fulfillment performance in their organizations. Originality/value Little research has been done investigating the impact of SDRs within the DoD, and to the best of the authors’ knowledge, no previous study has examined the effect of SDRs on military aircraft readiness metrics.

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.

Marine Condenser Design Using Numerical Optimization

1980 ◽  
Vol 102 (3) ◽  
pp. 469-475 ◽  
Author(s):  
C. M. Johnson ◽  
G. N. Vanderplaats ◽  
P. J. Marto
Keyword(s):  
Conceptual Design ◽  
Numerical Optimization ◽  
Automated Design ◽  
Design Tools ◽  
Computer Codes

Computer codes for the analysis of marine steam condensers were coupled with a numerical optimization code to provide fully automated design. The resulting programs are excellent design tools for the conceptual design of a condenser to meet specified constraints. Examples illustrate the versatility of this method.

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