Abstract This paper illustrates a combined nonparametric and parametric system identification framework for modeling nonlinear vibrating structures. First step is the analysis: multiple-input multiple-output measurements are (semi-automatically) preprocessed, Best Linear Approximation (BLA) method performed. The outcome of BLA analysis results in frequency response function, noise distortion es...

In this paper a classical feedback controller has been designed to furnish fast acting characteristics in the face of parametric perturbation using two parameters, Generalized Time Constant and Characteristic Ratios. The design is extended to develop a controller for the pitch control of a BRAVO fighter aircraft. This design allows reduction of overshoot, control of speed of the response and ro...

A multiblock structured grid solver for 3D Euler/Navier-Stokes equations is developed in this study. The employs the finite difference method together with lower-upper factored scheme to provide fast solutions, while use of grids allows algorithm be applied complex geometries. then tested on a "body-only" axisymmetric model single-engine fighter aft-end which was previously investigated experim...

Abstract We consider a vertically differentiated market where an incumbent strategically wants to launch fighter brand thwart new entrant. Without credibly commitment this is ineffective because the always has incentive price ex-post out of market. Endogenous leadership with fixed or list announcement, and dual channeling intermediary retailer distribute are analyzed as devices. The optimal mod...

This paper provides an overview of some of the recent developments in the assessment of network vulnerability and robustness through appropriate tools that assist in the quantification of network efficiency / performance and the identification of the importance of network components, such as nodes and links. We demonstrated how rigorously constructed and well-defined network measures can captur...

Calcium deficiency in apple fruit has been identified as a primary cause of bitter pit in apples, however some apples are not as susceptible as others. The apple cultivar ‘Scilate’ has been identified as less susceptible to bitter pit, but it is not known whether high calcium concentrations are what contribute this resistance. Because scilate is a more recent variety, little research has been d...