scholarly journals Finite Element Analysis of Dynamic Characteristics and Bending Stiffness for Cross Laminated Timber Floor Panels with and without Openings

2021 ◽  
Vol 72 (4) ◽  
pp. 373-379
Author(s):  
Ljiljana Kozarić ◽  
Smilja Bursać ◽  
Martina Vojnić Purčar ◽  
Miroslav Bešević ◽  
Žikica Tekić
Keyword(s):  
Finite Element ◽  
Dynamic Characteristics ◽  
Structural Characteristics ◽  
Longitudinal Direction ◽  
Bending Stiffness ◽  
Full Potential ◽  
Element Analysis ◽  
Cross Laminated Timber ◽  
Additional Service ◽  
Floor System

The aim of this paper is to present numerical investigations of dynamic characteristics and bending stiffness for cross laminated timber floor panels with and without service openings. Five-layer panels with the outer layers oriented in the longitudinal direction of the panel have been analyzed. In order to explore the full potential of this floor system using a limited number of measurements and structural tests, models based on the finite element method have been proposed, validated against experimental results and then used to investigate the effect of opening position in the floor on main structural performance parameters. The results showed that, when the need for additional service opening appears, a slight decrease of the main structural characteristics of the cross laminated timber floor panels is achievable with an adequate geometrical position of the opening in the floor.

Dynamic Analysis of Large-Scale Power House

2012 ◽  
Vol 446-449 ◽  
pp. 837-840
Author(s):  
Yu Zhao ◽  
Shu Fang Yuan ◽  
Jian Wei Zhang
Keyword(s):  
Finite Element ◽  
Dynamic Characteristics ◽  
Large Scale ◽  
Three Dimensional ◽  
Dynamic Responses ◽  
Dynamic Loads ◽  
Element Analysis ◽  
Power House ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element

The underwater structure of power house is major structure under the dynamic loads of unit. The vibration problem is very common in operation. So the structures should have sufficient stiffness to resist dynamic loads of unit. This paper establishes three-dimensional finite element models with finite element analysis software—ANSYS. Dynamic characteristics of the power house and dynamic responses of structure under earthquake are analyzed. The results of the computation show that fluid-solid coupling may be ignored when studying dynamic characteristics of structures of the underground power house.

scholarly journals Dynamic characteristics of triaxial active control magnetic bearing with asymmetric structure

Open Physics ◽  
2018 ◽  
Vol 16 (1) ◽  
pp. 9-13 ◽  
Author(s):  
Atsushi Nakajima ◽  
Katsuhiro Hirata ◽  
Noboru Niguchi ◽  
Masayuki Kato
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Active Control ◽  
Dynamic Characteristics ◽  
Negative Pressure ◽  
Axial Direction ◽  
Magnetic Bearing ◽  
Magnetic Bearings ◽  
Asymmetric Structure ◽  
Element Analysis

Abstract Supporting forces of magnetic bearings are lower than those of mechanical bearings. In order to solve these problems, this paper proposes a new three-axis active control magnetic bearing (3-axis AMB) with an asymmetric structure where its rotor is attracted only in one axial direction due to a negative pressure of fluid. Our proposed 3-axis AMB can generate a large suspension force in one axial direction due to the asymmetric structure. The performances of our proposed 3-axis AMB are computed through 3-D finite element analysis.

Finite Element Analysis for Wave Spring of Multi-Disc Wet Clutch Based on ANSYS

2013 ◽  
Vol 419 ◽  
pp. 203-208
Author(s):  
Ying Yu ◽  
Yao Run Peng ◽  
Shi Xin Lan ◽  
Ping Zhou
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Structural Characteristics ◽  
Response Speed ◽  
Wave Number ◽  
Element Analysis ◽  
Wet Clutch ◽  
Relationship Of ◽  
Deformation Relationship

Wave spring is a key component of multi-disc wet clutch and the response speed and running quality of multi-disc wet clutch is affected by its characteristics. This paper analyses the theoretical calculation of load-deformation relationship of wave spring. The load-deformation relationship of wave spring is obtained by ANSYS10.0 software according to its structural characteristics and actual boundary condition and compared with the calculated results based on different methods and the measured value, and then study the effect of the wave number on the load-deformation relationship of wave spring. The results show that the calculated value of finite element analysis (FEM) is closer to the measured value and the FEM has more advantages on simulation of the working performance of wave spring.

Comparative Finite Difference and Finite Element Analysis of the Dynamic Characteristics of a Load-Beam-Lumped-Mass Unit

2007 ◽  
Author(s):  
Mohammad Kazemi ◽  
Hossein Haj-Hariri
Keyword(s):  
Finite Element ◽  
Finite Difference ◽  
Cross Sections ◽  
Dynamic Characteristics ◽  
Disk Drive ◽  
Lumped Mass ◽  
Simplified Models ◽  
Element Analysis ◽  
Mass Unit ◽  
Load Beam

The dynamics of a load-beam-lumped-mass unit (LBLMU) in a disk drive is modeled using physically motivated simplifications. Models are developed for sway, bending and torsion modes of vibration assuming mode decoupling. A finite-difference scheme (FDS) is employed to discretize the governing equations for the three modes. The models are verified by comparing the modal results of simplified models with the results of full 3D finite element models (FEMs) for beams with rectangular and U-shaped cross sections. Then, the models are used to predict the natural frequencies of a LBLMU. It is revealed that the simplified models capture well the dynamic characteristics of a LBLMU while requiring much smaller computational resources.

The Finite Element Analysis and Optimization of Subway Steel Structure Work Platform Based on Workbench and Pro/E in a Subway

2012 ◽  
Vol 538-541 ◽  
pp. 2953-2956
Author(s):  
Ya Li ◽  
Guang Sheng Ren
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Structural Characteristics ◽  
Steel Structure ◽  
Strength Analysis ◽  
Element Analysis ◽  
Maximum Deformation ◽  
Software Model ◽  
The Finite Element Analysis ◽  
Calculation Results

The static and stability analysis of steel structure were taken according to steel structure work platform’s requirements and structural characteristics in a subway parking space by using the software model which is established by Pro/E software and implanted into the finite element analysis software ANSYS Workbench. The maximum deformation and stress in design load of the steel structure were calculated and the linear stress strength analysis of the key parts was carried out, also both the analysis and testing of the supporting pillar’s stability were performed. The results show that the structure model established by Pro/E and the calculation method are reasonable. Moreover, the calculation results are of high accuracy. The profile size is properly chosen and the structure bearing capacity and deformation meet the design requirements.

3-D finite element analysis of dynamic characteristics of spherical resonant actuator

2010 ◽  
Author(s):  
Satoshi Suzuki ◽  
Yoshihiro Kawase ◽  
Tadashi Yamaguchi ◽  
Yoshiyasu Shibayama ◽  
Katsuhiro Hirata ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Dynamic Characteristics ◽  
Element Analysis
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