scholarly journals A Study on the Vibration Reduction by the Position of Borehole using Experimental Waveform and Finite Element Analysis

2013 ◽  
Vol 22 (4) ◽  
pp. 381-387 ◽  
Author(s):  
Jeong-Un Song ◽  
Seung-Kon Kim ◽  
Hoon Park ◽  
Woong-Ki Hong
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Vibration Reduction ◽  
Element Analysis

Investigation Concerning Vibration Reduction of Self-Anchored Suspension Bridge under Vehicle Braking Forces

2010 ◽  
Vol 163-167 ◽  
pp. 2689-2692
Author(s):  
Meng Gang Yang ◽  
Zhu Qing Yang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Vibration Reduction ◽  
Suspension Bridge ◽  
Optimal Parameters ◽  
Longitudinal Displacement ◽  
Element Analysis ◽  
Cable Stayed Bridge ◽  
Floating System ◽  
Braking Force

Large longitudinal displacement would be generated by vehicle braking force in the girder of self-anchored suspension bridge, just as the floating system of cable-stayed bridge. In this paper, taking Pingsheng bridge as an engineering example, the vehicle braking force models are established according to traffic survey, furthermore dynamic response and vibration reduction of the bridge under vehicle braking force are investigated by finite element analysis. The results show that the longitudinal displacement of the girder is relatively large, and it can effectively be controlled by viscous dampers with optimal parameters.

Static/Dynamic Contact Finite Element Analysis for Tooth Profile Modification of Helical Gears

2011 ◽  
Vol 86 ◽  
pp. 384-388
Author(s):  
Yong Jun Wu ◽  
Jian Jun Wang ◽  
Qin Kai Han
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Vibration Reduction ◽  
Dynamic Contact ◽  
Tooth Profile ◽  
Element Analysis ◽  
Helical Gears ◽  
Profile Modification ◽  
Tooth Profile Modification ◽  
Static Contact

A precise approach for the tooth profile modification (TPM) of helical gear is presented in the paper based on the static contact finite element analysis (FEA). The high-precision finite element model of helical meshing gear pairs is established. The type and amount of TPM are accurately determined by the static contact FEA results. The dynamic contact simulations of helical gears with and without tooth modification are investigated to estimate the vibration reduction effect of the TPM. Moreover the numerical simulations are compared with the experimental results. Both results show that the proposed precise TPM of helical gears is effective on vibration reduction around the working load, and the dynamic contact simulation is effective on estimating the vibration reduction influence of the TPM.

The Design of a Vibration Reduction Test Platform of the Rigid Hinge Expansion Joint of Jiashao Bridge

2013 ◽  
Vol 361-363 ◽  
pp. 1366-1369
Author(s):  
Tian Bo Peng ◽  
Bing Sun ◽  
Lei Han
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Vibration Reduction ◽  
Service Condition ◽  
Temperature Deformation ◽  
Bridge Structure ◽  
Expansion Joint ◽  
Element Analysis ◽  
Reduction Test ◽  
Test Platform

The temperature deformation of Jiashao Bridge is a serious problem. In order to solve this problem effectively, a kind of rigid hinge structure is adopted in the middle of the bridge. Unit sparse plate bridge expansion joint for multi-direction-displacement is installed on the rigid hinge of this bridge. Vibration reduction tests are needed to verify the performance of the expansion joint and the service condition of the bridge structure. In this paper, a finite element analysis of the rigid hinge expansion joint is performed and a vibration reduction test platform is designed.

Finite Element Analysis for Mechanical Part of Metal Embedded Resin Mineral Composites

2012 ◽  
Vol 602-604 ◽  
pp. 2147-2150
Author(s):  
Shi Mei Hao ◽  
Jian Hua Zhang ◽  
Tao Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Cast Iron ◽  
Modal Analysis ◽  
Dynamic Performance ◽  
Vibration Reduction ◽  
Structural Performance ◽  
Element Analysis ◽  
Mechanical Parts ◽  
Mechanical Part

To study the structural performance of resin mineral composites part with metal embedded, a series of finite element analysis for mechanical parts made of different materials such as cast iron, resin mineral composites (RMC), and metal embedded resin mineral composites (MRMC) are conducted respectively in this article. Different performances of these three kinds of materials are acquired by static and modal analysis. It is proved that mechanical part made of MRMC has advantages of static and dynamic performance, to meet the requirement of vibration reduction.

Structural-Acoustic Vibration Reduction Using Switched Shunt Piezoelectric Patches: A Finite Element Analysis

2010 ◽  
Vol 132 (5) ◽  
Author(s):  
Walid Larbi ◽  
Jean-François Deü ◽  
Monica Ciminello ◽  
Roger Ohayon
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Vibration Reduction ◽  
Coupled System ◽  
Acoustic Vibration ◽  
Finite Element Formulation ◽  
Element Formulation ◽  
Element Analysis ◽  
Acoustic Cavity ◽  
Acoustic Fluid

In this paper, we present a finite element formulation for vibration reduction in structural-acoustic systems using passive or semipassive shunt techniques. The coupled system consists of an elastic structure (with surface-mounted piezoelectric patches) filled with an inviscid linear acoustic fluid. An appropriate finite element formulation is derived. Numerical results for an elastic plate coupled to a parallelipedic air-filled interior acoustic cavity are presented, showing the performances of both the inductive shunt and the synchronized switch shunt techniques.

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