Flexural response analysis of passive and active near-surface-mounted joints: experimental and finite element analysis

2018 ◽  
Vol 51 (4) ◽  
Author(s):  
I. S. Shabana ◽  
I. A. Sharaky ◽  
A. Khalil ◽  
H. S. Hadad ◽  
E. M. Arafa
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Response Analysis ◽  
Element Analysis ◽  
Near Surface ◽  
Flexural Response ◽  
Near Surface Mounted

Research on the Application of Periodic Truss-Core Structures to Structural Design of Machine Tool

2011 ◽  
Vol 194-196 ◽  
pp. 1977-1981
Author(s):  
Dong Qiang Gao ◽  
Zhi Yun Mao ◽  
Zhong Yan Li ◽  
Fei Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Machine Tool ◽  
Dynamic Properties ◽  
Response Analysis ◽  
Optimized Design ◽  
Element Analysis ◽  
Truss Core ◽  
The Finite Element Analysis ◽  
Harmonic Response Analysis

The modal analysis and harmonic response analysis of the machine tool table with periodic truss-core structures are analyzed and calculated by finite element analysis software-ANSYS Workbench, then we get the finite element analysis results. After comparing the results with finite element analysis results of the original machine tool table, we come to the conclusion that the dynamic properties of the machine tool table with periodic truss-core structures are better than the original machine tool table’s. It makes a base for optimized design and remanufacturing.

Design of a New Piezo-Electric Micro-Gripper Based on Flexible Magnifying Mechanism

2012 ◽  
Vol 201-202 ◽  
pp. 907-911 ◽  
Author(s):  
Feng Yi Feng ◽  
Yu Guo Cui ◽  
Fei Xue ◽  
Liang En Wu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Response Analysis ◽  
Analysis Software ◽  
Maximum Displacement ◽  
Element Analysis ◽  
Micro Gripper ◽  
The Finite Element Analysis ◽  
Harmonic Response Analysis ◽  
Finger Tip

Based on the requirements of that the finger can move in parallel, and the displacement of the finger can be detected, the micro-gripper driven by piezoelectric actuator is designed based on the displacement amplification structure with the flexure hinge. The static analysis, the modal analysis, the harmonic response analysis and the transient response analysis of the micro-gripper are carried out by using the finite element analysis software ANSYS. The results of the finite element analysis show that the finger is fully able to move in parallel, and can detect the displacement of the finger; the maximum displacement of the finger is about 101 μm, the first natural frequency is about 130 Hz; the finger tip displacement under the 1 μm step input is about 20 μm, the fingertip vibration is about ±2 μm.

Simplified Seismic Response Analysis Method Using Reduced Model of Piping System

2018 ◽  
Author(s):  
Michiya Sakai ◽  
Ryuya Shimazu ◽  
Shinichi Matsuura ◽  
Ichiro Tamura
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Seismic Response ◽  
Degrees Of Freedom ◽  
Response Analysis ◽  
Piping System ◽  
Element Analysis ◽  
Mass System ◽  
Piping Systems ◽  
Low Degrees

In the seismic response analysis of piping systems, finite element analysis is performed with analysis method guidelines [1]–[4] established based on benchmark analysis. However, since it takes a great deal of effort to carry out finite element analysis, a simplified method to analyze the seismic response of complex piping systems is required. In this research, we propose a method to reduce an equivalent spring-mass system model with low degrees of freedom, which can take into account the main mode of the complicated piping system. Simplified seismic evaluation is carried out using this spring mass system model with low degrees of freedom, and the accuracy of response evaluation is confirmed by comparison with finite element analysis.

Dynamic Response Analysis of Wind Turbine Gearbox Using Simplified Local Tooth Stiffness of Internal Gear System

2015 ◽  
Vol 10 (4) ◽  
Author(s):  
J. R. Cho ◽  
K. Y. Jeong ◽  
M. H. Park ◽  
N. G. Park
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Wind Turbine ◽  
Dynamic Models ◽  
Gear Tooth ◽  
Dynamic Responses ◽  
Response Analysis ◽  
Analysis Model ◽  
Wind Turbine Gearbox ◽  
Element Analysis

This paper presents a dynamic finite element analysis model for a wind turbine gearbox in which a number of internal gears mesh with each other in a complex pattern. Differing from the conventional dynamic models in which the detailed gear teeth are fully modeled or gears and shafts are replaced with lumped masses, the tooth contact between a pair of gears is modeled using a spring element. The equivalent spring constant is determined by computing the stiffness of a gear tooth using a finite element analysis. The numerical accuracy of the proposed dynamic model is verified through a benchmark experiment of a gearbox with simple gear transmission system. In addition, the natural frequencies and dynamic responses of a 5 MW wind turbine gearbox that are obtained by the proposed modeling technique are given to support its validity and effectiveness.

Dynamic Characteristic Analysis of the Horizontal Machine Center

2010 ◽  
Vol 97-101 ◽  
pp. 3671-3676
Author(s):  
Li Zhang ◽  
Liang Wei Zhong
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Response Analysis ◽  
Main Shaft ◽  
Characteristic Analysis ◽  
Element Analysis ◽  
Machine Center ◽  
Harmonic Response ◽  
Machining Force ◽  
Harmonic Response Analysis

Modal analysis of machine center was carried out by means of finite-element analysis (FEA) method to get its characteristics and to improve its machining precision. Based on this, harmonic response analysis was processed to evaluate its vibration when the cycle load caused by the machining force was applied on the main shaft of machine center, which was used to provide clues for avoiding resonance vibration and ameliorating design.

Finite Element Analysis of Unbonded Prestressed Concrete Silos

2014 ◽  
Vol 578-579 ◽  
pp. 60-65
Author(s):  
Guang Shu Xu ◽  
Huan Qin Liu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Prestressed Concrete ◽  
Seismic Analysis ◽  
Structural Response ◽  
Response Analysis ◽  
Element Analysis ◽  
Paper Making ◽  
Pile Caps ◽  
Prestressed Reinforcement

in this paper, making coal storage silo that diameter is a 120 m as the background, researched warehouse wall and pile caps using finite element method. In articles, the finite element analysis of soil, study the influence of prestressed reinforcement about prestressed effect, the structural response analysis under different stack forms and seismic analysis. The results show that: inside and outside temperature difference makes maximum stress, full load can reflect the other coal pile forms, the ability of resist the earthquake is strong.

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