Modeling Method for Complex Structure System in Finite Element Simulating Analysis

2011 ◽  
Vol 130-134 ◽  
pp. 195-199
Author(s):  
Xue Ling Zhang ◽  
Ya Hui Hu ◽  
Shu Feng Chai
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Direct Relationship ◽  
Complex Structure ◽  
Complex Model ◽  
System Structure ◽  
Structure System ◽  
Modeling Methods ◽  
Simulating Analysis ◽  
Element System

How to deal with the model is important in analyzing structure system with finite element method, because the rationality of model has direct relationship with veracity of simulation result. In this paper some simplify modeling methods are expatiated. And an approach is supposed that combine simplifying complex model and rigid-treating sub-component which make model more close to reality. In final, an instance of multi-type-element system structure is computed to prove the correctness of the method.

Stress Variation in the Orthodontic Tipping Phenomenon Analysis through the finite element method

2018 ◽  
Vol 69 (8) ◽  
pp. 1992-1995
Author(s):  
Dan Dragos Sita ◽  
Ligia Brezeanu ◽  
Cristina Bica ◽  
Dana Manuc ◽  
Edwin Sever Bechir ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Alveolar Bone ◽  
Complex Structure ◽  
External Action ◽  
The Finite Element Method ◽  
Stress Variation ◽  
Orthodontic Bracket ◽  
Method Analysis ◽  
Element Method

The purpose of the study is to assess through a FEM (Finite Element Method analysis), the behavior of a complex structure (enamel-tooth-alveolar bone-periodontal ligament-pulp), subjected to an external load through an orthodontic bracket-with forces of various intensities and to determine its influence on the entire structure.It is necessary to analyze the way all elements of the structure take over the external action given by the action of an orthodontic appliance through the brackets and the influence on the inner component -the pulp-inside of which there are the nerve endings.

Dynamic Processes of Rotating System with Coupling

2006 ◽  
Vol 113 ◽  
pp. 213-218 ◽  
Author(s):  
Vytautas Barzdaitis ◽  
Marijonas Bogdevicius ◽  
Rimantas Didžiokas
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Elastic Plate ◽  
Diagnostic System ◽  
Complex Model ◽  
Dynamic Processes ◽  
Machine Condition ◽  
Rotating System ◽  
Machine Condition Monitoring ◽  
Dynamics And Vibration

The article concerns dynamics and vibration of a high power rotating system with toothed wheel coupling that inserts elastic plate packets. Theoretical modeling and simulation of the rotating system with toothed wheel coupling have been provided by a finite element method. Complex model involved a rotating system, hydrodynamic bearings and coupling. The dynamics of semi-couplings and plates have been simulated. Experimental measurement of vibration has been measured with stationary machine condition monitoring and a diagnostic system.

scholarly journals Dynamic Analysis of Partially Embedded Structures Considering Soil-Structure Interaction in Time Domain

2011 ◽  
Vol 2011 ◽  
pp. 1-23 ◽  
Author(s):  
Sanaz Mahmoudpour ◽  
Reza Attarnejad ◽  
Cambyse Behnia
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Dynamic Response ◽  
Time Domain ◽  
Soil Structure ◽  
Soil Structure Interaction ◽  
Structure System ◽  
Structure Interaction ◽  
Scaled Boundary Finite Element ◽  
Element Method

Analysis and design of structures subjected to arbitrary dynamic loadings especially earthquakes have been studied during past decades. In practice, the effects of soil-structure interaction on the dynamic response of structures are usually neglected. In this study, the effect of soil-structure interaction on the dynamic response of structures has been examined. The substructure method using dynamic stiffness of soil is used to analyze soil-structure system. A coupled model based on finite element method and scaled boundary finite element method is applied. Finite element method is used to analyze the structure, and scaled boundary finite element method is applied in the analysis of unbounded soil region. Due to analytical solution in the radial direction, the radiation condition is satisfied exactly. The material behavior of soil and structure is assumed to be linear. The soil region is considered as a homogeneous half-space. The analysis is performed in time domain. A computer program is prepared to analyze the soil-structure system. Comparing the results with those in literature shows the exactness and competency of the proposed method.

Study on Dynamic Properties of the Intake Tower with Finite Element Method

2014 ◽  
Vol 501-504 ◽  
pp. 1888-1891 ◽  
Author(s):  
Cheng Lin Gong ◽  
Hua Liu ◽  
Jian Zhang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Dynamic Properties ◽  
Complex Structure ◽  
Hollow Structure ◽  
Complex Loading ◽  
Thin Wall ◽  
Finite Element Software ◽  
Complex Boundary ◽  
Tower Foundation

Intake tower is a complex structure, which has complex boundary conditions and has complex loading situation. Intake tower is made up of reinforced concrete ,which is thin-wall hollow structure. It builds in the near the shore in the reservoir, its top bridge connects to the banks of the river, The tower is in the water and is under pressure, intake towers safety is very important under the action of earthquake. Based on the large finite element software ANSYS, the dynamic properties of the intake tower is studied, and the intake tower+ foundation is also studied. The research conclusions can be used as reference for engineering design.

Analysis of Acoustic Performance of Compound Muffler by Finite Element Method

2012 ◽  
Vol 529 ◽  
pp. 257-263
Author(s):  
Deng Hui Cai ◽  
Xin Tan Ma
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Transmission Loss ◽  
Complex Structure ◽  
Three Dimensional ◽  
Sound Field ◽  
Acoustic Vibration ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element ◽  
Element Method

Since the theory of one-dimensional plane wave can not accurately predict the internal sound field of the complex structure muffler. The three-dimensional finite element method is adopted to establish the acoustic model of the composite muffler based on the application of composite muffler model. Transmission loss and characteristics of internal sound field of the composite muffler's are calculated through acoustic vibration software Sysnoise. The calculation shows that the muffler under the interference of fluid flow has the higher transmission loss compared with the absence of liquidity function with an additional silencer band. The analysis method and conclusions provide a basis for the design of composite muffler.

Seismic Reliability Analysis of Complex Structure

2012 ◽  
Vol 446-449 ◽  
pp. 2321-2325
Author(s):  
Zhi Yong Zhang ◽  
Wen Bo Huang ◽  
Yue Fa Zhou ◽  
Tian Shu Song
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Reliability Analysis ◽  
Structural Reliability ◽  
Limit State ◽  
Complex Structure ◽  
State Function ◽  
Limit State Function ◽  
Seismic Reliability ◽  
Element Method

The seismic reliability analysis of complex structure is carried out based on the response surface method and finite element method. Firstly, the appropriate design points are selected based on the mean values and standard deviations of the basic random variables. Secondly, the finite element method is employed to obtain the values of the limit state function of the complex structure. Thirdly, with selected design points and the obtained values of the limit state function of the complex structure, a polynomial function is constructed to approximate the original implicit limit state function. Then, with the established explicit polynomial limit state function and available methods of structural reliability analysis, the seismic reliability of the complex structure is estimated. Numerical analyses show that the established method is simple to use for the evaluation of the reliability analysis of complex structure.

Numerical Analysis of Bridge Caisson Foundation due to Riverbed Erosion

2013 ◽  
Vol 405-408 ◽  
pp. 342-348
Author(s):  
Wen Tsung Liu ◽  
Chia Chyi Chang ◽  
Kuei Hsiang Cheng ◽  
Chen Wei Chi
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Water Flow ◽  
Warning System ◽  
Bridge Pier ◽  
Scour Depth ◽  
Flood Level ◽  
Simulating Analysis ◽  
The Impact ◽  
Element Method

Keywords： Scour Depth, Water flow Force, Finite Element Method ABSTRACT. In recent years, the researches on the impact stability of piers based on river erosion are concerned in Taiwan. Therefore, it is an important issue to estimate accurately the scour depth, to calculate the water flow force on bridge pier, and to establish the close mechanism of bridge for saving lives. This research is a case study on Paulon Bridge by finite element method (FEM) Plaxis 3D Foundation for simulating analysis the caisson foundation in bridge pier scour. Firstly, we infer the flood level, the speed of flow in the different frequency year, the whole bridge safety coefficient, and the inclination angle of pile based on the simulating analysis to build the warning system. We compare the data by FEM and observing data in order to confirm the validity of FEM.

Reliability Analysis of APN-A Offshore Jacket Using Monte Carlo Finite Element Method

2017 ◽  
Vol 862 ◽  
pp. 259-264 ◽  
Author(s):  
Agro Wisudawan ◽  
Daniel M. Rosyid ◽  
Moh. Luthfi Baihaqie
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Monte Carlo ◽  
Reliability Analysis ◽  
Conventional Method ◽  
Complex Structure ◽  
Life Time ◽  
Large Structure ◽  
Number Of Cycles ◽  
Element Method

Reliability analysis is one of important parameter to ensure the safety of structure during its life time. Especially for large structure which has a high consequences. Conventional method is unable to give an accurate reliability result for a complex structure. Here is presented how MCFEM work to do reliability analysis of complex structure i.e. APN-A Offshore Jacket. Simulation was carried out until 100,000 number of cycles and obtained the reliability of APN-A offshore jacket i.e. 0.8806.

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