we consider a new type of integrable coupled nonlinear schrodinger (cnls)equations proposed by our self [submitted to phys. plasmas (2011)]. the explicitform of soliton solutions are derived using the hirota's bilinear method.we show that the parameters in the cnls equations only determine the regionsfor the existence of bright and dark soliton solutions. finally, throughthe linear stabili...

A mid-fidelity aerodynamic solver based on the vortex particle method for wake modeling, DUST, is coupled through partitioned multi-physics coupling library preCICE to a multibody dynamics code, MBDyn, improve accuracy of aeroelastic numerical analysis performed rotary-wing vehicles. In this paper, tool firstly validated by solving simple fixed-wing and problems from open literature. The transi...

Abstract The aeroelastic loads and design processes at the German Aerospace Center, Institute of Aeroelasticity in framework multi-disciplinary optimization are constantly evolving. New developments have been made in-house model generation tool ModGen, which allow us to create detailed fuselage models for preliminary design. As a part subsequent integrate structure our process, new optimizing h...

This paper discusses the mathematical existence and the numerically-correct identification of linear and nonlinear aerodynamic impulse response functions. Differences between continuous-time and discrete-time system theories, which permit the identification and efficient use of these functions, will be detailed. Important input/output definitions and the concept of linear and nonlinear systems ...

this paper presents a mathematical model for the vibration analysis of a three-component piezoelectric force sensor. the cubic theory of weakly nonlinear electroelasticity is applied to the model for describing the electromechanical coupling effect in the piezoelectric sensing elements which operate in thickness-shear and thickness-stretch vibration modes. hamilton's principle is used to d...

There are a number of existing methods to transfer information among various disciplines. For a multidisciplinary application with n disciplines, the traditional methods may be required to model ) ( 2 n n − interactions. This paper presents a unified three-dimensional approach that reduces the number of interactions from ) ( 2 n n − to n 2 by using a computer-aided design model. The proposed mo...