Interfacing FEA and Multibody Simulation Through Component Mode Synthesis

2005 ◽  
Author(s):  
Hassan N. Bayoumi
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Dynamic Analysis ◽  
Multibody Systems ◽  
Simulation Software ◽  
Component Mode Synthesis ◽  
Multibody Simulation ◽  
Element Analysis ◽  
Structural Dynamic ◽  
Systems Software

Many of the currently available commercial multibody systems simulation packages are limited to rigid bodies linked by joints. Accurate dynamic analysis of multibody systems might require consideration of the flexibility of some components. Finite element analysis is generally the method of choice for structural dynamic analysis. Implementation of a fully featured reliable finite element capability within well-established commercial multibody systems software is not an easy task. A practical solution is to interface commercial finite element analysis software with commercial multibody systems software. This paper describes the theory and implementation aspects of such an interface. The interface is based on the Craig-Bampton method of component mode synthesis. The power of this technique is that it presents customers of commercial multibody simulation software with a practical and reliable tool to address component flexibility. The technique has been implemented to interface two major commercial simulation packages. Two practical applications, a flexible connecting rod and a flexible hard disk drive head-stack assembly, are discussed.

scholarly journals Vessel-Bridge Collision Reliability Assessment Based on Structural Dynamic Analysis

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Fu Tao ◽  
Ren Xiaoqian ◽  
Wang Kai
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Dynamic Analysis ◽  
Method Of Moments ◽  
Reliability Assessment ◽  
Impact Angle ◽  
Element Analysis ◽  
Structural Dynamic ◽  
Dynamic Finite Element ◽  
Dynamic Finite Element Analysis

Reliability analysis of vessel-bridge collision plays an important role in the construction of inland bridges. In this paper, a new method is proposed based on structural dynamic analysis. The random characteristics of three factors—impact angle, deadweight tonnage of vessels, and impact velocity—are considered. This method combines the method of moments with nonlinear dynamic finite element analysis, which can enhance the efficiency of calculating failure probability.

Interval Finite Element Analysis of Structural Dynamic Problems

2015 ◽  
Vol 8 (2) ◽  
pp. 382-389 ◽  
Author(s):  
Naijia Xiao ◽  
Rafi L. Muhanna ◽  
Francesco Fedele ◽  
Robert L. Mullen
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Dynamic Problems ◽  
Element Analysis ◽  
Structural Dynamic

Finite Element Analysis Model of Corrosion Fatigue for TIG Welding Workpiece

2016 ◽  
Vol 707 ◽  
pp. 154-158
Author(s):  
Somsak Limwongsakorn ◽  
Wasawat Nakkiew ◽  
Adirek Baisukhan
Keyword(s):  
Residual Stress ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Fatigue Life ◽  
Corrosion Fatigue ◽  
Welding Process ◽  
Simulation Software ◽  
Tig Welding ◽  
Element Analysis ◽  
Fea Model

The proposed finite element analysis (FEA) model was constructed using FEA simulation software, ANSYS program, for determining effects of corrosion fatigue (CF) from TIG welding process on AISI 304 stainless steel workpiece. The FEA model of TIG welding process was developed from Goldak's double ellipsoid moving heat source. In this paper, the residual stress results obtained from the FEA model were consistent with results from the X-ray diffraction (XRD) method. The residual stress was further used as an input in the next step of corrosion fatigue analysis. The predictive CF life result obtained from the FEA CF model were consistent with the value obtained from stress-life curve (S-N curve) from the reference literaturature. Therefore, the proposed FEA of CF model was then used for predicting the corrosion fatigue life on TIG welding workpiece, the results from the model showed the corrosion fatigue life of 1,794 cycles with testing condition of the frequency ( f ) = 0.1 Hz and the equivalent load of 67.5 kN (equal to 150 MPa) with R = 0.25.

Experiences From Structural Dynamic Analysis Projects of BWR Plants Within the Scope of Power Uprate Projects Using FEA

2010 ◽  
Author(s):  
Bjo¨rn Sva¨rd ◽  
Jan-Anders Larsson ◽  
Philip Ma˚rtensson ◽  
Bjo¨rn Lundin
Keyword(s):  
Finite Element Analysis ◽  
Dynamic Analysis ◽  
Structural Models ◽  
Dynamic Interactions ◽  
Element Analysis ◽  
Structural Dynamic ◽  
Global Models ◽  
Dynamic Verification ◽  
Strong Dynamic ◽  
Reactor Pressure

During recent years, power-uprate projects have been executed at several BWR-units in Sweden. As part of these projects, structural verification of the safety-related buildings as well as the new and old internal parts of the reactor pressure vessel, RPV, has been performed. In this document, some experiences will be presented from structural dynamic verification, using finite element analysis, FEA, within the scope of these power uprate projects. From this work, a number of conclusions can be drawn. Global models with dense meshes can successfully be used for a broad range of applications. Today, large FEA-models can be used efficiently, e.g. in global vibration and structural verification analyses, if suitable dynamic analysis methods are used. There can be strong dynamic interactions between the containment, fluids, the RPV and RPV-internals. Stress calculation and evaluation can be executed efficiently on large models. The structural models can with advantage be re-utilized in future projects.

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.

Finite Element Analysis on Key Components of Horizontal Refuse Compactor

2013 ◽  
Vol 584 ◽  
pp. 24-28
Author(s):  
He Nan Chen ◽  
Shou Cheng Wang ◽  
Yuan Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Sharp Increase ◽  
Simulation Software ◽  
Element Analysis ◽  
Operation Efficiency ◽  
Fea Simulation ◽  
Environmental Amelioration

This subject is proposed via authentic market investigation, based on the sharp increase of household garbage in urban cities and urgent demand for environmental amelioration in recent years. Taking horizontal refuse compactor as an example, this paper optimizes the configuration of key components of refuse compactors, by employing Finite Element Analysis (FEA) method, aiming to select the most appropriate components to equip compactors, whose operation efficiency can be markedly enhanced. The statics analysis for each key component is individually conducted by applying ABAQUS, the FEA simulation software, to test the reliability of this new structure.

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