On the use of the wave based method for the steady-state dynamic analysis of three-dimensional plate assemblies
نویسنده
چکیده
Nowadays, the finite element method is the most commonly used prediction method for dynamic simulations of mechanical structures. A major disadvantage of this method is its practical frequency limitation at higher frequencies. A newly developed wave based prediction technique aims to relax this frequency limitation through an enhanced computational efficiency. This paper discusses the principles of the wave based method for the steady-state dynamic analysis of thin, flat plates of arbitrary geometry, coupled at an arbitrary angle. The beneficial convergence rate of the wave based method when compared with the finite element method is verified for two validation examples.
منابع مشابه
Dynamic Analysis of Multi-Directional Functionally Graded Panels and Comparative Modeling by ANN
In this paper dynamic analysis of multi-directional functionally graded panel is studied using a semi-analytical numerical method entitled the state-space based differential method (SSDQM) and comparative behavior modeling by artificial neural network (ANN) for different parameters. A semi-analytical approach which makes use the three-dimensional elastic theory and assuming the material propert...
متن کاملStatic Analysis of Functionally Graded Annular Plate Resting on Elastic Foundation Subject to an Axisymmetric Transverse Load Based on the Three Dimensional Theory of Elasticity
In this paper, static analysis of functionally graded annular plate resting on elastic foundation with various boundary conditions is carried out by using a semi-analytical approach (SSM-DQM). The differential governing equations are presented based on the three dimensional theory of elasticity. The plate is assumed isotropic at any point, while material properties to vary exponentially thro...
متن کاملOptimal Pareto Parametric Analysis of Two Dimensional Steady-State Heat Conduction Problems by MLPG Method
Numerical solutions obtained by the Meshless Local Petrov-Galerkin (MLPG) method are presented for two dimensional steady-state heat conduction problems. The MLPG method is a truly meshless approach, and neither the nodal connectivity nor the background mesh is required for solving the initial-boundary-value problem. The penalty method is adopted to efficiently enforce the essential boundary co...
متن کاملThree dimensional static and dynamic analysis of thick plates by the meshless local Petrov-Galerkin (MLPG) method under different loading conditions
In this paper, three dimensional (3D) static and dynamic analysis of thick plates based on the Meshless Local Petrov-Galerkin (MLPG) is presented. Using the kinematics of a three-dimensional continuum, the local weak form of the equilibrium equations is derived. A weak formulation for the set of governing equations is transformed into local integral equations on local sub-domains by using a uni...
متن کاملStress Waves in a Generalized Thermo Elastic Polygonal Plate of Inner and Outer Cross Sections
The stress wave propagation in a generalized thermoelastic polygonal plate of inner and outer cross sections is studied using the Fourier expansion collocation method. The wave equation of motion based on two-dimensional theory of elasticity is applied under the plane strain assumption of generalized thermoelastic plate of polygonal shape, composed of homogeneous isotropic material. The freque...
متن کامل