A dynamic order reduction method for fluid-structure systems

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Order Reduction & Structure Simplification for Nonlinear Systems

This paper considers the problem of passing from a nonlinear simple-structure model to a low-order approximation by preserving simplicity. The approximation problem is often best posed as an `2 optimization problem. This optimization problem is the core of our order reduction method so-called system matrices optimization. The simplification is formulated as special secondary conditions which ca...

متن کامل

An effective method for eigen-problem solution of fluid-structure systems

Efficient mode shape extraction of fluid-structure systems is of particular interest in engineering. An efficient modified version of unsymmetric Lanczos method is proposed in this paper. The original unsymmetric Lanczos method was applied to general form of unsymmetric matrices, while the proposed method is developed particularly for the fluid-structure matrices. The method provides us with si...

متن کامل

A High-Order Spectral Difference Method for Fluid-Structure Interaction on Dynamic Deforming Meshes

In previous work by the authors, Spectral Difference Method has been formulated in a framework with time-dependent moving deformable meshes. The framework has also been shown to preserve the design accuracy of the underlying high order temporal (explicit Runge-Kutta) and spatial discretization (Spectral Difference) methods. In this study, Spectral Difference method is further extended to deal w...

متن کامل

A High Order Discontinuous Galerkin Method for Fluid-Structure Interaction

We describe a method for computing time-dependent solutions to the compressible Navier-Stokes equations coupled to a hyperelastic Neo-Hookean membrane model. The deforming domain is handled by introducing a continuous mapping between a fixed reference configuration and the time varying domain, and rewriting the Navier-Stokes equations as a conservation law for the independent variables in the r...

متن کامل

A New Method of Order Reduction for High Order Interval Systems Using Least Squares Method

The paper presents the application of Least Squares moment matching method about a general point „a‟ for the reduction of high order Interval systems. A heuristic criteria have been employed for selecting the linear shift point „a‟ based upon the harmonic mean of real parts of the poles of four high order fixed systems obtained by Kharitonov‟s Theorem. The denominator polynomials are obtained b...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Applied Mathematical Modelling

سال: 2021

ISSN: 0307-904X

DOI: 10.1016/j.apm.2020.06.071