scholarly journals A Component-Based Model for Novel Modular Connections with Inbuild Component

2021 ◽  
Vol 11 (21) ◽  
pp. 10503
Author(s):  
Renwei Ma ◽  
Junwu Xia ◽  
Hongfei Chang ◽  
Bo Xu
Keyword(s):  
Finite Element ◽  
Steel Structure ◽  
Element Model ◽  
Parameter Study ◽  
Construction Period ◽  
Deformation Response ◽  
Proposed Model ◽  
Rotational Joint ◽  
Simplified Finite Element Model ◽  
Connection Design

A modular steel structure building has obvious advantages in reducing construction period and protecting the environment due to its unique construction method, so it is widely used in modern construction. However, the modular building connection design and modeling are mostly based on the traditional connection research results. To address this issue, the paper developed a component-based model for novel modular connections with an inbuild component. First of all, the comprehensive parameter study was implemented using elaborate finite element models. Then the component-based model for novel modular connections was developed, and the force-deformation response of each component was determined using the finite element method. Thirdly, assembly of all components to overall rotational joint and the simplified finite element model of modular connections was obtained. Finally, comparison between simplified and refined finite element was conducted, the results showed that the proposed model can predict the mechanical behavior of modular building connections within the acceptable margin of error.

FEM Based Statics Analysis of the Main Steel Structure of Bucket Wheel Stacker-Reclaimer

2013 ◽  
Vol 690-693 ◽  
pp. 1933-1939
Author(s):  
Peng Shang ◽  
Wei Zhou ◽  
Chun Xia Li ◽  
Yu Ming Guan
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Rigid Body ◽  
Carrying Capacity ◽  
Steel Structure ◽  
Element Model ◽  
Body System ◽  
Turning Motion ◽  
Integral Structure ◽  
Simplified Finite Element Model

Bucket wheel stacker-reclaimer is kind of a typical multi-rigid-body system. Its main steel structure consists of bucket wheel, forearm frame, column tower, balance frame and pull rod, etc. All components connected with each other basically by welding. And the integral structure can realize whole luffing motion and turning motion. Reclaiming arm, central bracket and pitch steel structure of counterweight arm are the structure of its core. This paper use ANSYS to create the simplified finite element model of the steel structure and analyze the distribution of loads in all types of conditions. Loading solving, then cloud picture of displacement and that of stress of the overall luffing mechanism was concluded, so as to check the carrying capacity and strength of the structure.

Influence of Pedestrian Number on Vibration Serviceability of Footbridge

2014 ◽  
Vol 1049-1050 ◽  
pp. 378-382
Author(s):  
Ju Bing Zhang ◽  
Shao Xia Zhang ◽  
Ying Zou
Keyword(s):  
Finite Element ◽  
Flow Simulation ◽  
Steel Structure ◽  
Element Model ◽  
Simulation Software ◽  
Force Model ◽  
Social Force ◽  
Vibration Data ◽  
Finite Element Software ◽  
Vibration Serviceability

In recent years, the problem of the human-induced bridge vibration has attracted more and more concerns. In this paper , a steel structure footbridge named Shuang'an East in Beijing was taken as the example to collect the whole bridge vibration data and build the finite element model with the finite element software. In addition, this research changes the limitation of considering the pedestrian load as a whole with a traffic flow simulation software, which is based on social force model, applying to reflect the pedestrians' locations during walking. Comparing the simulation data with the the measured data, the vibration serviceability of footbridge will decrease with the increasing of the number of the pedestrians. The analysis results will provide reference for the dynamic characteristic of similar structures.

scholarly journals Possible reasons for early artificial bone failure in biomechanical tests of ankle arthrodesis systems

2015 ◽  
Vol 1 (1) ◽  
pp. 507-509
Author(s):  
H. Martin ◽  
N. Gutteck ◽  
J.-B. Matthies ◽  
T. Hanke ◽  
G. Gradl ◽  
...  
Keyword(s):  
Finite Element ◽  
Boundary Conditions ◽  
Experimental Tests ◽  
Element Model ◽  
Ankle Arthrodesis ◽  
Artificial Bone ◽  
Basic Model ◽  
Simplified Finite Element Model ◽  
Biomechanical Tests ◽  
Horizontal Displacements

AbstractIn order to demonstrate the influence of the boundary conditions in experimental biomechanical investigations of arthrodesis implants two different models were investigated. As basic model, a simplified finite element model of the cortical bone was used in order to compare the stress values with (Model 1) and without (Model 2) allowing horizontal displacements of the load application point. The model without constraints of horizontal displacements showed considerably higher stress values at the point of failure. Moreover, this investigation shows that the boundary conditions (e.g. constraints) have to be carefully considered, since simplifications of the reality with experimental tests cannot always be avoided.

Parameter study on a finite element model of the middle ear / Parameterstudie an einem Finite-Elemente-Modell des Mittelohrs

2010 ◽  
Vol 55 (1) ◽  
pp. 19-26 ◽  
Author(s):  
Marc Hoffstetter ◽  
Florian Schardt ◽  
Thomas Lenarz ◽  
Sabine Wacker ◽  
Erich Wintermantel
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Middle Ear ◽  
Element Model ◽  
Parameter Study ◽  
Finite Elemente

An Investigation Into the Upper Arm Deformation Under Inflatable Cuff

2008 ◽  
Author(s):  
H. Lan ◽  
A. M. Al-Jumaily ◽  
A. Lowe
Keyword(s):  
Finite Element ◽  
Soft Tissues ◽  
Element Model ◽  
Upper Arm ◽  
Inflatable Cuff ◽  
Proposed Model ◽  
Materials Used ◽  
Tissue Deformations ◽  
Visible Human ◽  
Collapse Process

The human upper arm is simulated using a nonlinear geometrical and physical model. To create a more realistic simulation, the geometry of the model is based on the visible human body dataset. The model consists of four parts, humerus, brachial artery, muscle, and other soft tissues. All the materials used in this model are assumed to be incompressible and hyperelastic. The unique properties of each material are specified and described. Incorporating all of these facts, a finite element model is developed using the commercial programme ABAQUS®. The upper arm tissues’ deformations and artery collapse process under compression are simulated in this model. The proposed model has the potential to simulate the tissue deformations under inflatable cuffs exposed to arm movements.

Coupled Blade Bending and Torsional Shaft Vibration in Turbomachinery

1993 ◽  
Author(s):  
U. Schaber ◽  
J. F. Mayer ◽  
H. Stetter
Keyword(s):  
Finite Element ◽  
Forced Vibration ◽  
Vibration Analysis ◽  
Element Model ◽  
Electrical Network ◽  
Design Parameters ◽  
Parameter Study ◽  
Mass Relation ◽  
Turbine Generator ◽  
Beam Elements

The forced vibration of turbomachinery blading induced by torsional vibration of the rotor shaft is investigated. Torsional shaft vibrations, caused for example by disturbances in the electrical network, jeopardize the long blades in low pressure stages of steam and gas turbine generator rotors. A simple finite element model consisting of beam elements is used to calculate free and forced vibration. A parameter study has been performed to show the influence of design parameters like mass relation and eigenfrequency relation of the uncoupled system parts. The vibration analysis of a large steam turbine generator rotor is presented.

Finite Element Model for Cracked Beams with Bonded Piezoelectric Transducers

2011 ◽  
Vol 94-96 ◽  
pp. 73-76
Author(s):  
Wei Yan ◽  
Wan Chun Li ◽  
Wei Wang
Keyword(s):  
Finite Element ◽  
Mass Density ◽  
Crack Depth ◽  
Element Model ◽  
Numerical Results ◽  
Parameter Study ◽  
Bonding Layer ◽  
Cracked Beam ◽  
Electromechanical Impedance ◽  
Finite Element Software

Based on the finite element software ANSYS, an electromechanical impedance (EMI) model for a cracked beam with imperfectly bonded piezoelectric patches is established in the paper. The property of bonding layer between the PZT sensor/actuators and the host beam is taken into account and thus the three-dimensional (3D) model of piezoelectric patch-adhesive-cracked beam coupled system is developed. Comparison with existing numerical results validates the effectiveness and accuracy of the present analysis. Then, parameter study is conducted by considering effects of the vibration mode of the host beam, the mass density of the adhesive and crack depth etc. on EMI signatures. The numerical results indicate that the present EMI model can be used to detect the cracks in the structures.

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