scholarly journals Experimental and Numerical Analysis of Torque Properties of Rotary Elastomer Particle Damper considering the Effect of Gap and No Gap between Rotor and Body of the Damper

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Allah Rakhio ◽  
Yasushi Ido ◽  
Yuhiro Iwamoto ◽  
Atsushi Toyouchi
Keyword(s):  
Rotational Speed ◽  
Packing Fraction ◽  
Vital Role ◽  
Simulation Approach ◽  
Analysis Method ◽  
Gap Model ◽  
Element Analysis ◽  
Metallic Particles ◽  
Simulation Results ◽  
Particle Dampers

Particle dampers are devices used to control the vibration of mechanical systems. In this research, prototypes of rotary elastomer particle dampers are experimentally tested considering gap and no gap between shaft and cylinder. There is a gap between the rotor and cylinder in the gap model; particles can move from one chamber to another. There is no space for the particles to move from one chamber to another in the no-gap model. Elastomer particles are soft, and they have different behavior from hard (metallic) particles. Experiments on rotary elastomer particle dampers considering the gap between rotor and cylinder helped investigate the effects of the change in packing fraction, rotational speed, size of elastomers, and the gap between the rotor and the damper body. A numerical simulation approach based on the discrete element analysis method is used to perform a quantitative and qualitative analysis of the rotary elastomer particle damper. The simulation results are in great agreement with the experiment results. It is observed that packing fraction, rotational speed, size of elastomer particles, and the gap between rotor and cylinder play a vital role in producing higher damper torque.

Analysis and Control of Maglev Flywheel Rotor in the Wind Generator

2012 ◽  
Vol 608-609 ◽  
pp. 513-516
Author(s):  
Hua Chun Wu ◽  
Xu Jun Lv ◽  
Gao Gong
Keyword(s):  
Reduction Method ◽  
Response Analysis ◽  
Analysis Method ◽  
Element Analysis ◽  
Lqr Control ◽  
Finite Element Analysis Method ◽  
Wind Generator ◽  
Simulation Results ◽  
And Control ◽  
Flywheel Rotor

The application of maglev flywheel in wind generator is investigated. The dynamics analysis of maglev flywheel rotor has been performed including the critical speed analysis and unbalance response analysis, which took into account the gyroscopic effect by using of finite element analysis method. Based on the model reduction method, the modeling and LQR control of maglev flywheel rotor is presented, the simulation results show stable levitation and good levitated rotation.

scholarly journals Meat Cutting Machine Shaft Design and Analysis

2021 ◽  
Vol 328 ◽  
pp. 07003
Author(s):  
Cipto Cipto ◽  
Klemens A. Rahangmetan ◽  
Christian Wely Wullur ◽  
Farid Sariman ◽  
Hariyanto Hariyanto
Keyword(s):  
Finite Element Analysis ◽  
Load Capacity ◽  
Maximum Load ◽  
Analysis Method ◽  
Maximum Displacement ◽  
Element Analysis ◽  
Finite Element Analysis Method ◽  
Cutting Machine ◽  
The Finite Element Analysis ◽  
Simulation Results

This study analyzes the maximum load on the shaft construction with a diameter of 12 mm and a length of 581 mm. The shaft is designed as a shaft for cutting meat with a capacity of 5 kg. The analysis was performed using the finite element analysis method included in the Autodesk software. According to mathematical calculations, the shaft is considered safe because the value of the admissible tension τa = 7.380 kg / mm2 is greater than the maximum tension τp 5.62 kg / mm2. Based on the simulation results of the test, the shaft experiences a maximum off-stress of 61.89 MPa, a maximum displacement of 0.07715 mm, , and a safety factor of 3.34 µl so that the shaft is classified as safe for use with a Load capacity of 5 Kg

Simulation on the Springback Property of Sealing Ring in Nuclear Power Plant

2014 ◽  
Vol 644-650 ◽  
pp. 3881-3885
Author(s):  
Li Liu ◽  
Wei Wei Yu ◽  
Dong Wang Yang
Keyword(s):  
Nuclear Power ◽  
Sharp Decrease ◽  
Analysis Method ◽  
Ansys Software ◽  
Element Analysis ◽  
Sealing Ring ◽  
Simulation Results ◽  
Thermal Influence ◽  
Contact Stress Distribution ◽  
Good Agreement

In order to simulate the thermal influence on springback property of O-ring, based on elastic-plastic contact analysis method of finite element analysis (FEA), numerical simulation of compression-springback course of O-ring was carried out by ANSYS software. The results show that it causes a sharp decrease in the peak force applied on O-ring, corresponding to a decline on the contact stress distribution which may influence the seal ability of the O-ring. The simulation results are in good agreement with the experimental results.

Characteristics Analysis of Hydraulic Servo-Valve Torque Motor Using Magnetic Fluid

2005 ◽  
Author(s):  
Songjing Li ◽  
Dan Jiang ◽  
Wen Bao
Keyword(s):  
Dynamic Performance ◽  
Magnetic Fluids ◽  
Analysis Method ◽  
Element Analysis ◽  
Servo Valve ◽  
Finite Element Analysis Method ◽  
Characteristics Analysis ◽  
Hydraulic Servo ◽  
Simulation Results ◽  
The Magnetic Field

Magnetic fluids are added to a torque motor of hydraulic servo-valve, to improve the performance of the torque motor and the servo-valve. The construction and principle of the torque motor are introduced. Using finite element analysis method, the magnetic field distribution of the torque motor is analyzed. The static and dynamic performance of the torque motor with or without magnetic fluids is studied and compared. The simulation results are shown.

Finite Element Analysis for Effect of Different Carcass on Performance of Aircraft Tire

2013 ◽  
Vol 561 ◽  
pp. 422-427
Author(s):  
Zhi Wei Jiao ◽  
Ge Zhang ◽  
Yong Liu ◽  
Yue Xing Liu ◽  
Hua Yan ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Side Wall ◽  
The Other ◽  
Analysis Method ◽  
Element Analysis ◽  
Braking Performance ◽  
Finite Element Analysis Method ◽  
Minimum Deformation ◽  
Simulation Results

Three different kinds of carcass A, B and C for aircraft tires were presented in the article, which is based on the different length of rolling up for carcass cord across the bead ring. And then they were simulated by applying finite element analysis method when aircraft tire was landing in an instant. The simulation results indicated that, the carcass structure of rolling up from the side of bead extending to the other bead (A type) has the minimum deformation, which can reduce the outward of bulge for the side wall and effectively resolve the failure problem for rubber in the sidewall of tire , what’s more , it can prolong the life of aircraft tire to a certain degree and provide good braking performance.

Application of Coupled Structural Acoustic Analysis and Sensitivity Calculations to a Tire Noise Problem

2012 ◽  
Vol 40 (1) ◽  
pp. 25-41 ◽  
Author(s):  
H. M. R. Aboutorabi ◽  
L. Kung
Keyword(s):  
Performance Improvement ◽  
Acoustic Analysis ◽  
Simulation Analysis ◽  
Analysis Method ◽  
Vehicle Manufacturer ◽  
Element Analysis ◽  
Equipment Manufacturer ◽  
Tire Noise ◽  
Fea Modeling ◽  
Testing Instruments

Abstract REFERENCE: H. M. R. Aboutorabi and L. Kung, “Application of Coupled Structural Acoustic Analysis and Sensitivity Calculations to a Tire Noise Problem,” Tire Science and Technology, TSTCA, Vol. 40, No. 1, January – March 2012, pp. 25–41. ABSTRACT: Tire qualification for an original equipment (OE) program consists of several rounds of submissions by the tire manufacturer for evaluation by the vehicle manufacturer. Tires are evaluated both subjectively, where the tire performance is rated by an expert driver, and objectively, where sensors and testing instruments are used to measure the tire performance. At the end of each round of testing the evaluation results are shared and requirements for performance improvement for the next round are communicated with the tire manufacturer. As building and testing is both expensive and time consuming predictive modeling and simulation analysis that can be applied to the performance of the tire is of great interest and value. This paper presents an application of finite element analysis (FEA) modeling along with experimental verification to solve tire noise objections at certain frequencies raised by an original equipment manufacturer (OEM) account. Coupled structural-acoustic analysis method was used to find modal characteristics of the tire at the objectionable frequencies. Sensitivity calculations were then carried out to evaluate the strength of contribution from each tire component to the identified modes. Based on these findings changes to the construction were proposed and implemented that addressed the noise issue.

Use of the Finite Element Analysis Method in Pedodontics

2018 ◽  
Vol 55 (4) ◽  
pp. 666-675
Author(s):  
Mihaela Tanase ◽  
Dan Florin Nitoi ◽  
Marina Melescanu Imre ◽  
Dorin Ionescu ◽  
Laura Raducu ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Structural Model ◽  
Analysis Method ◽  
Ansys Software ◽  
Concentrated Force ◽  
Element Analysis ◽  
Finite Element Analysis Method ◽  
The Finite Element Analysis ◽  
Solid Type

The purpose of this study was to determinate , using the Finite Element Analysis Method, the mechanical stress in a solid body , temporary molar restored with the self-curing GC material. The originality of our study consisted in using an accurate structural model and applying a concentrated force and a uniformly distributed pressure. Molar structure was meshed in a Solid Type 45 and the output data were obtained using the ANSYS software. The practical predictions can be made about the behavior of different restorations materials.

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