Finite Element Analysis of Rotational Contact-Impact Behavior of a Geared Rotor System

1996 ◽  
Author(s):  
Makoto Tanabe ◽  
Chen Jie Jiang ◽  
Koya Takazawa
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Present Method ◽  
Rotor System ◽  
Impact Behavior ◽  
Experimental Result ◽  
Element Formulation ◽  
Element Analysis ◽  
Numerical Examples ◽  
Contact Impact

Abstract A simple and efficient finite element formulation and numerical method to solve it for the rotational contact-impact behavior of a geared rotor system are given. A gear element is devised to model the contact-impact behavior between gears in which the irregularity of tooth pitch is also considered. A computer program has been developed to solve this problem. Numerical examples of an electric disk grinder are demonstrated and compared with the experimental result to show the effectiveness of the present method.

p-Version Incompressible Lubrication Finite Element Analysis of Large Width Bearings

1991 ◽  
Vol 113 (1) ◽  
pp. 116-119 ◽  
Author(s):  
S. H. Nguyen
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Pressure Field ◽  
Finite Element Formulation ◽  
Element Formulation ◽  
Element Analysis ◽  
Numerical Examples ◽  
Arbitrary Polynomial ◽  
Large Width

This paper presents a p-version finite element formulation for incompressible lubrication analyses where the pressure field can be of any arbitrary polynomial of order p. The formulation ensures the C° continuity between mating element boundaries. Numerical examples are provided to demonstrate the simplicity of modeling and the accuracy of the formulation.

Fatigue Strength Study on Radial Bogie Vice Frame Based on Finite Element Analysis

2015 ◽  
Vol 723 ◽  
pp. 96-99
Author(s):  
Xiao Wei Wang ◽  
Mao Xiang Lang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Fatigue Life ◽  
Fatigue Strength ◽  
Structural Strength ◽  
Simulation Software ◽  
Experimental Result ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
The Stability

The vice frame bears and transfers the forces and loads between the bogie and the vehicle body.The strength of the vice frame relates directly to the stability and smoothness of the vehicle. In this study, finite element analysis is utilized first to analyse the structural strength and fatigue life of the vice frame, and the recognize the weak parts of its structure in order to enhance its structural strength in the following design work.The finite element analysis is performed on a simulation software Ansys. Then an experiment is designed to test the fatigue strength of the vice frame. The experimental result indicates that the fatigue strength of the object corresponds to the standards and the finite element analysis has high feasibility in solving this kind of problem.

Solid Rocket Motor Finite Element Analysis Based on the Reverse Modeling of ICT Images

2014 ◽  
Vol 599-601 ◽  
pp. 1708-1711
Author(s):  
Peng Li ◽  
Hong Mei Zhou ◽  
Hong Yi Lu ◽  
Min Zhu ◽  
Qing Gui Chen
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Rocket Motor ◽  
Experimental Result ◽  
Solid Rocket Motor ◽  
Element Analysis ◽  
Contour Segmentation ◽  
Modeling Software ◽  
Solid Rocket ◽  
Vector Images

To Evaluate SRM effectively, according to the structure characteristics of solid rocket motor, the series of solid rocket motor ICT images were processed with edge detection ,edge thinning, contour tracing, contour segmentation, and contour fitting. The raster images were converted to vector images which can be recognized by the CAD modeling software. Then, according to the vector images, SRM was modeled by the software, and the model was studied with finite-element analysis. The experimental result indicates that the quality of the model is good, and the result of the finite-element analysis can reflect the state of the experimental SRM.

Research and Applications of a Plane Embedded Combined Element Model Considering Bond and Slip

2013 ◽  
Vol 275-277 ◽  
pp. 1296-1301
Author(s):  
Ji Wei Wang ◽  
Qin Qin Qiao ◽  
Fei Leng
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Shear Deformation ◽  
Element Model ◽  
Beam Element ◽  
Shape Functions ◽  
Element Analysis ◽  
Bond Slip ◽  
Numerical Examples ◽  
Nodal Force

It is one of the most important issues for finite element analysis of lining structures that how to describe anchor rod reasonably and effectively and simulate the interaction between rod and concrete or rock. Virtual nodes are constructed in concrete/rock element at the ends of anchor rod and bond-slip element is set between virtual nodes and beam element which describes anchor rod. An embedded combined element with bond slip and shear deformation is established through the transformation of nodal force at nodes of bond-slip element to those of concrete/rock element via shape functions. The element is convenient for meshing element because the location and direction of anchor rod are not necessary to be considered. Meanwhile, the element has the advantage of low computing cost. Finally, the validity and efficiency are verified by numerical examples.

scholarly journals Multiscale analysis of instabilities in heterogeneous materials using ANM and multilevel FEM

2012 ◽  
Author(s):  
Saeid Nezamabadi ◽  
Hamid Zahrouni ◽  
Julien Yvonnet ◽  
Michel Potier-Ferry
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Multiscale Analysis ◽  
Numerical Technique ◽  
Constitutive Relations ◽  
Heterogeneous Materials ◽  
Perturbation Approach ◽  
Element Analysis ◽  
Numerical Examples ◽  
Asymptotic Numerical Method

In this study, we propose a numerical technique which combines a perturbation approach (asymptotic numerical method) and a multilevel finite element analysis. This procedure allows dealing with instability phenomena in the context of heterogeneous materials where buckling may occur at both macroscopic and/or microscopic scales. Different constitutive relations are applied and geometrical non-linearity is taken into account at both scales. Numerical examples involving instabilities at both micro and macro levels are presented.

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