Vibration Analysis on Convey Paper Belt of Infeed Unit

2012 ◽  
Vol 262 ◽  
pp. 377-381
Author(s):  
Wei Cheng Bao ◽  
Hong Chen ◽  
Yan Mei Liang
Keyword(s):  
Finite Element ◽  
Finite Element Simulation ◽  
Vibration Analysis ◽  
Beam Theory ◽  
Model Analysis ◽  
Printing Press ◽  
Simulation Technology ◽  
Shape Distortion ◽  
Belt Speed ◽  
Element Simulation

The precondition of improve the printing press velocity is to maintain the minimum vibration of infeed unit within the range of press speed. Taking advantage of the equivalent relation between the formula of infinitesimal energy and the classic beam theory, the vibration of convey paper belt can be converted into the problem of the beam be stretched and be compressed, and then we utilize the finite element simulation technology to conduct model analysis for the convey paper belt. When the numerical of the belt speed gain ,both the vibration and shape distortion reach the maximum, as well as speed of the infeed unit will be influenced most.

Investigation of the effect of the sling angle and size on the reliability of lifting hooks

SIMULATION ◽  
2017 ◽  
Vol 94 (10) ◽  
pp. 931-942 ◽  
Author(s):  
Yusuf Aytaç Onur
Keyword(s):  
Finite Element ◽  
Finite Element Simulation ◽  
Safety Factor ◽  
Material Handling ◽  
Beam Theory ◽  
Leg Length ◽  
Material Handling Systems ◽  
Element Simulation ◽  
Simulation Results ◽  
Stress Analyses

The lifting hook is one of the vital components in material handling systems, since sudden accidents are unavoidable if the working reliability of the hook is poor. In this study, computer-aided single hook modeling is done in accordance with the DIN 15401 standard then extensive stress analyses at different sling sizes and angles and stress analyses when the hook is rigged by sling legs with unequal leg length and rigged by sling legs with unequal leg length and height have been conducted in order to reveal the effect of sling size and angle and different rigging manners on the safety factor of the lifting hook by using finite element simulation. Loads carried by each sling member are calculated and presented. Curved beam theory and simplified theory are employed to compare finite element simulation results. The critical sling angle at which the safety factor reduces evidently has been determined by altering the sling size and angle. The critical sling angle is found to be 51°, since reduction in the safety factor originates from a 51° sling angle.

Study on the Shape Distortion of Sheet Inner-Concave Flanging

2013 ◽  
Vol 774-776 ◽  
pp. 1186-1189 ◽  
Author(s):  
Ling Yun Zhang ◽  
Ze Sun
Keyword(s):  
Finite Element ◽  
Finite Element Simulation ◽  
Strain Distribution ◽  
Outer Edge ◽  
Shape Distortion ◽  
Element Simulation ◽  
Calculation Results ◽  
Simulation Results ◽  
The Law

In this paper, through analysed the strain and stress of sheet inner-concave flanging and observed result of finite element simulation, the law of strain distribution in outer edge area of deformation.By simplified the distributed regularity, a method to predict the shape distortion of outer edge area of deformation was obtained, the calculation results and the finite element simulation results are nearly equal to each other.

Simulation Research of Deuterium and Tritium Ions Motion in Accelerating Electric Field for Neutron Tube

2014 ◽  
Vol 538 ◽  
pp. 62-67
Author(s):  
Ji Peng Huang ◽  
Gang Liu ◽  
Shuang Qiao
Keyword(s):  
Finite Element ◽  
Electric Field ◽  
Finite Element Simulation ◽  
Simulation Technology ◽  
Simulation Research ◽  
Element Simulation ◽  
Neutron Tube ◽  
Simulation Results ◽  
The Stability ◽  
Tube Structure

The model of neutron tube accelerating system was established to research what the effect of neutron tube accelerating gap, voltage and size of accelerating electrode on trajectory of deuterium tritium ion with finite element simulation technology. Some useful conclusions obtained from the simulation results provide the basis for optimizing the neutron tube structure and parameter, which can make neutron yields of 50-mm-diameter tube in the order of 109 n/s and the stability is not more than 2%.

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