With the current increase of environmental concerns, conventional methods practiced at end-
of-life would not be capable to sustain the growing amount of retired aircrafts waiting for final …

The common bulkhead structure can be used to reduce the weight of the space launch
vehicles. In this paper, the nonlinear postbuckling analyses are conducted to derive the …

In order to design a hypersonic vehicle for a wide-ranged Mach number, a novel parallel
vehicle for a wide-speed range has been proposed. In this paper, we employ a numerical …

Abstract Space propulsion systems play an increasingly important role in planning of space
missions. The traditional method for design of space propulsion systems includes numerous …

This paper presents a Fuzzy Preference Function-based Robust Multidisciplinary Design
Optimization (FPF-RMDO) methodology. This method is an effective approach to …

The objective of the current research is to analyze the steady state performance of staged
combustion cycle liquid propellant rocket engines (SCCLPREs) and to provide a …

CFD simulations of turbulent reacting flows based on finite rate chemistry often employ
reduced kinetic mechanisms to decrease the computational cost, especially if the …

A novel strategy to design optimization is expressed using the fuzzy preference function
concept. This method efficiently uses the designer's experiences by preference functions …

In this study, a mission design process for space launch vehicles was established based on
the systems engineering process and implemented to obtain the system baseline and the …

Recently, engineering systems are quite large and complicated. Conceptual design process
of Space Transportation Systems (STSs) is a multidisciplinary task which must take into …