The PC Integrated Machine Drop FE Analysis Using Abaqus

2012 ◽  
Vol 580 ◽  
pp. 214-217
Author(s):  
Hui Xiang Yang ◽  
Hai Zhou Weng ◽  
Yu Qing Zheng
Keyword(s):  
Fe Simulation ◽  
Simulation Analysis ◽  
Fe Analysis ◽  
Test Results ◽  
Structural Weakness

The paper simulated integrated machine drop process by Abaqus / Explicit and extracted its displacement and strain results. We forecasted possible structural weakness and compared the results with the test results. The FE simulation analysis results were verified correct.

Simulation Analysis of the Working Process of the Corn Seed Metering Device with Combination Inner-Cell

2012 ◽  
Vol 215-216 ◽  
pp. 160-167 ◽  
Author(s):  
Qing Long Li ◽  
Ji Yang Yu ◽  
Qiang Qiang Zhang ◽  
Jian Qun Yu ◽  
Hong Fu
Keyword(s):  
Simulation Analysis ◽  
Three Dimensional ◽  
Bench Test ◽  
Particle Model ◽  
Test Results ◽  
Working Process ◽  
Corn Seed ◽  
3D Cad ◽  
Novel Method ◽  
Seed Metering Device

A three-dimensional discrete element method analytic model of the corn seed metering device with combination inner-cell was established based on its 3D CAD model, and the three-dimensional particle model of corn seeds was built by using the method of combination spherical particle. The working process of the corn seed metering device was simulated and analyzed by self-developed three-dimensional CAE software. It was observed that the simulative results of the seeding performance, clearing angles and dropping angles of the corn seeds well agreed with the bench test results. A novel method for studying and designing of the corn seed metering device was put forward.

Thermal Hydraulic Test of Advanced Fuel Bundle With Spectral Shift Rod (SSR) for BWR: Steady State and Transient Test Results and Analysis

2012 ◽  
Author(s):  
Takao Kondo ◽  
Kazuaki Kitou ◽  
Masao Chaki ◽  
Yukiharu Ohga ◽  
Takeshi Makigami
Keyword(s):  
Steady State ◽  
Water Level ◽  
Simulation Analysis ◽  
Spectral Shift ◽  
Test Results ◽  
Analysis Method ◽  
Fuel Bundle ◽  
State Test ◽  
Shift Effect ◽  
Steady State Test

Japanese national project of next generation light water reactor (LWR) development started in 2008. Under this project, spectral shift rod (SSR) is being developed. SSR, which replaces conventional water rod (WR) of boiling water reactor (BWR) fuel bundle, was invented to enhance the BWR’s merit, spectral shift effect for uranium saving. In SSR, water boils by neutron and gamma-ray direct heating and water level is formed as a boundary of the upper steam region and the lower water region. This SSR water level can be controlled by core flow rate, which amplifies the change of average core void fraction, resulting in the amplified spectral shift effect. This paper presents the steady state test with varied SSR geometry parameters, the transient test, and the simulation analysis of these steady state and transient tests. The steady state test results showed that the basic functioning principle such as the controllability of SSR water level by flow rate was maintained in the possible range of geometry parameters. The transient test results showed that the change rate of SSR water level was slower than the initiating parameters. The simulation analysis of steady state and transient test showed that the analysis method can simulate the height of SSR water level and its change with a good agreement. As a result, it is shown that the SSR design concept and its analysis method are feasible in both steady state and transient conditions.

Numerical investigation on the gas–liquid entraining and separating effects on self-priming performance in a flow-ejecting centrifugal pump

2018 ◽  
Vol 233 (2) ◽  
pp. 232-248 ◽  
Author(s):  
Guidong Li ◽  
Yang Wang ◽  
Jieyun Mao
Keyword(s):  
Centrifugal Pump ◽  
Separation Efficiency ◽  
Simulation Analysis ◽  
Guide Vane ◽  
Test Results ◽  
Baffle Plate ◽  
Two Phase ◽  
Performance Curves ◽  
Separating Property ◽  
Frequency Domain Properties

To investigate the influence of entraining and separating effect of gas–liquid two-phase on self-priming performance in the flow-ejecting centrifugal pump, three different schemes of adding the baffle plate behind the guide vane were proposed. Experiments on self-priming performance for three different guide vane schemes were carried out, and numerical calculations on entraining property in the ejector and separating property in the chamber were analyzed by means of the Eulerian–Eulerian multiphase flow model. Meanwhile, the frequency domain properties of pressure pulsation and the pump performance curves were obtained to further verify the feasibility of the scheme in practical application. The results show that the simulation analysis agreed well with the test results. The area and magnitude of high velocity region and vorticities in the ejector of scheme 2 are remarkably larger than those of other schemes. Gas–liquid separation efficiency in a pump chamber also significantly improves when the baffle plate behind the guide vane is mounted at an appropriate position. Furthermore, different guide vane schemes have certain impact on the characteristics of internal and unsteady flow pulsation phenomena in model pump but are within the acceptable operation range. The head and efficiency of scheme 2 are also slightly higher than those of the prototype in the full operation range.

Ultimate Behavior of Single Shear Bolted Connections with Thin-Walled Aluminum Alloys(6061-T6)

2012 ◽  
Vol 446-449 ◽  
pp. 3441-3445 ◽  
Author(s):  
Tae Soo Kim ◽  
Yong Hyun Jo ◽  
Seung Hun Kim ◽  
Yong Taeg Lee
Keyword(s):  
Finite Element ◽  
Ultimate Strength ◽  
Plane Deformation ◽  
Free Edge ◽  
Fe Analysis ◽  
Test Results ◽  
Bolted Connections ◽  
Element Analysis ◽  
Out Of Plane ◽  
Single Shear

The purpose of this study is to investigate the ultimate behaviors of aluminum alloy bolted connections assembled with four bolts. Specimens for single shear bolted connections were tested and finite element analysis based on this test results was conducted. The validity of finite element(FE) analysis for predicting the structural behaviors such as ultimate strength, fracture mode and curling(out-of-plane deformation) occurrence was verified through the comparisons between test results and FE analysis results. It is known that the curling resulted in sudden strength drop. Moreover, FE models with free edge and restrained out-of-plane deformation for curled specimens are analyzed additionally, therefore, the influence of curling on the ultimate strength; strength reduction ratio is estimated.

The Obstacle-Surmounting Process Simulation of Arm-Swing Wheeled Robot Based on MATLAB

2011 ◽  
Vol 199-200 ◽  
pp. 1244-1248
Author(s):  
Li Gong ◽  
Yu Feng Ding ◽  
Bu Yun Sheng ◽  
Dong Dong Che
Keyword(s):  
Simulation Analysis ◽  
Mathematic Model ◽  
Test Results ◽  
Complex Environment ◽  
Arm Swing ◽  
Wheeled Robot ◽  
Resistance Moment ◽  
Physical Prototype ◽  
Three Stages ◽  
The Stability

Considering complex environment of disaster site, an Arm-swing Wheeled Robot (AWR) with auxiliary obstacle-surmounting mechanism was developed. The obstacle-surmounting process is simplified into three stages, and the mathematic model of kinematic for each stage has been established. The simulation for each stage of obstacle-surmounting has been carried out in MATLAB. The stability of obstacle-surmounting is analyzed and the trend of resistance moment is obtained. Finally, the effectiveness of simulation analysis is verified by comparing with the test results of physical prototype.

Simulation on Vibration Isolation System for Vibratory-Drum Test Stand

2013 ◽  
Vol 365-366 ◽  
pp. 351-355 ◽  
Author(s):  
Zhi Feng Zhang ◽  
Hui Gan Xu ◽  
Xian Ning Kong ◽  
Yun Shi Yao
Keyword(s):  
Vibration Isolation ◽  
Performance Test ◽  
Simulation Analysis ◽  
Test Stand ◽  
Test Field ◽  
Test Results ◽  
Isolation System ◽  
Vibration Isolation System ◽  
Rubber Tire ◽  
Vibration Performance

the reliability and vibration performance test of vibratory rollers have been done in the test field to ensure that the vibratory roller meet the quality requirement. At present, the indoor test stand for vibratory roller has not yet been studied at home and abroad. This paper designs the indoor test stand for vibratory roller and makes simulation analysis by the numerical model of vibration-drum and test stand. The vibration isolation system of test stand is determined as a function of the test stand mass (m2), the stiffness of rubber tire (k1) and the stiffness of the vibration isolation block (k2). The test results showed that the vibration drum-test stand model can account for the vibration isolation system.

Design and Debugging of PMSM Control Algorithm for Electric Drive Tracked Vehicle

2014 ◽  
Vol 697 ◽  
pp. 249-253
Author(s):  
Xia Feng ◽  
Qun Zhang Tu ◽  
Ming Pan ◽  
Xiao Chen Zhang ◽  
Wei Jie Zheng
Keyword(s):  
Electric Drive ◽  
Control Algorithm ◽  
Graphical Model ◽  
Simulation Analysis ◽  
Permanent Magnet Synchronous Motor ◽  
Programming Method ◽  
Stable Operation ◽  
Test Results ◽  
Tracked Vehicle ◽  
Motor Drive System

The design and debugging of motor control algorithm for electric drive tracked vehicle as the research object, this paper proposed a graphical model programming method of the code directly generated based on vector control algorithm model of the permanent magnet synchronous motor created in Matlab/Simulink. After simulation analysis and verification, this paper using real time toolbox automatically generated the embedded C code and implemented a processor in the loop test. The test results show that the longest running time of the control algorithm was 7.1633μs, between code and algorithm model, had high functional equivalence .This programming method is simple and intuitive, easy debugging, stable operation, and provides an effective way for motor drive system software development of electric drive tracked vehicle.

Response of UHPC-Concrete Composite Structural Members Using Implicit and Explicit Finite Element Method

2019 ◽  
Vol 793 ◽  
pp. 93-97 ◽  
Author(s):  
Hor Yin ◽  
Kazutaka Shirai ◽  
Wee Teo
Keyword(s):  
Finite Element ◽  
Fe Simulation ◽  
Fe Analysis ◽  
Experimental Results ◽  
Structural Members ◽  
Explicit Finite Element ◽  
Explicit Analysis ◽  
Cracking Pattern ◽  
Implicit And Explicit ◽  
Good Agreement

This paper investigates the response of UHPC-concrete composite structural members using implicit and explicit finite element (FE) methods. Both methods were prepared and conducted individually for the FE analysis under static loading condition. Results of the implicit and explicit analysis were compared to experimental results conducted in previous study. Both the implicit and explicit methods showed similar overall response with fair accuracy compared with the experimental results. In addition, the effective plastic strain obtained from the FE simulation was in good agreement with the damage cracking pattern in the experiment.

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