Study on the Accuracy of Web Offset Press’s Fold Mechanism

2011 ◽  
Vol 338 ◽  
pp. 450-455
Author(s):  
Ying Cai Yuan ◽  
Yan Li ◽  
Yi Ming Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Working Condition ◽  
Lateral Displacement ◽  
Element Analysis ◽  
Dynamic Coefficients ◽  
Actual Working ◽  
Displacement Model ◽  
Accuracy Problem

The cutter’s lateral displacement along the paper’s movement is the main reason which causes the folding accuracy problem. The folding stem is deformed in actual working condition, which causes the cutter emerge lateral displacement. The structure of folding stem is complex, it needs the combination of mechanics and finite element analysis to get the fitting formula relation of the folder’s deformation and the loadings. By the dynamic coefficients, which express the relation of loadings between the working velocity and clearances, the cutter’s lateral displacement model is established based on studying the relation of the cutter’s lateral displacement and the folder stem’s deformation. By the model, the folding accuracy is studied in different working velocities and conditions.

Finite Element Analysis of Impact Plunger and Drill Rod and Optimization Design for Drill Rod of YC70 Hydraulic Impactor

2011 ◽  
Vol 128-129 ◽  
pp. 1312-1315
Author(s):  
Guo Ping Yang ◽  
Fa Long Zhu ◽  
Wen Long Yin ◽  
Yi Cheng
Keyword(s):  
Finite Element Method ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Optimization Design ◽  
Working Condition ◽  
Topological Optimization ◽  
Stress And Strain ◽  
Ansys Software ◽  
Element Analysis ◽  
Actual Working

This paper is primarily focused on finite element analysis and topological optimization of impact plunger and drill rod. Finite element method is an extremely functional, due to which we apply ANSYS software to analyze the stress and strain that impact plunger and drill rod bear in actual working condition and optimize their structure.

Finite Element Analysis of Drilling Frame on Down-the-Hole Drill Based on Mechanical Mechanics and Mechanical Properties

2014 ◽  
Vol 908 ◽  
pp. 282-286
Author(s):  
Wan Rong Wu ◽  
Lin Chen
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Working Condition ◽  
Slenderness Ratio ◽  
Stress And Strain ◽  
Limit States ◽  
Element Analysis ◽  
Practical Engineering ◽  
Structure Strength ◽  
Strength And Stiffness

Drilling frame on TD165CH Down-The-Hole Drill that has large slenderness ratio and be longer than 10m is one component of Down-The-Hole drill which is mainly subjected to load.In the process of drilling, drilling frame is not only subjected to loads which are like tensile, compression and torsion and so on, and be under the influence of impacting and vibration of impactor,the situation of force is complicated.By analysing of working condition of Down-The-Hole drill,there get all kinds of limit states of typical working conditions, and then using Ansys doing finite element analysis, there get distribution of the stress and strain of drilling frame and the result of modal analysis to check whether drilling frame meets the requirements of strength and stiffness or not,and whether it is possible to resonate with the impactor or not.By analysis,Structure strength and stiffness of drilling Frame on TD165CH Down-The-Hole drill meet the requirements of practical engineering, and drilling Frame does not resonate with the impactor.

Nonlinear Finite Element Analysis of Masonry Wall Strengthened with Steel Strips

2013 ◽  
Vol 838-841 ◽  
pp. 284-296
Author(s):  
Yu Hua Wang ◽  
Bei Bei Wang ◽  
Pei Chi ◽  
Jun Dong
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Lateral Displacement ◽  
Unreinforced Masonry ◽  
Masonry Wall ◽  
Shear Capacity ◽  
Computational Formula ◽  
Element Analysis ◽  
Steel Strips ◽  
The Cross

The finite element analysis method was adopted to simulate the masonry wall strengthened with steel strips and was verified by comparing with test results. The influence rules of two factors including the cross sectional area of steel strips and vertical compression were investigated. The results show that, as for unreinforced masonry wall, the relationship of the shear capacity of unreinforced masonry wall and the vertical compressive strain is linear under lateral load; the speed of stiffness degeneration is accelerated after the peak point of the curves, but decrease with the increasing of lateral displacement. As for masonry wall strengthened with steel strips, the shear capacity increases significantly, and shows nonlinear relationship with the cross section area of the steel strips and vertical compression; ductility is improved. Finally, a computational formula of shear capacity based on a lot of parametric analysis is proposed to calculate the sectional dimension of steel strips, and it provides theoretical foundation for establishing thorough design method of masonry wall strengthened with steel strips.

Study on Finite Element Analysis of the Rolled-Steel Pallet Based on Ansys

2014 ◽  
Vol 623 ◽  
pp. 66-72
Author(s):  
Zhe Fang ◽  
Mei Han ◽  
Yu Yi Li
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Working Condition ◽  
Rolled Steel ◽  
Actual Situation ◽  
Force Analysis ◽  
Element Analysis ◽  
Computer Aid ◽  
The Cost

In the article, the study focus on the computer aid finite element analysis of the rolled-steel pallet. The value of various parameters is determined by the force analysis according to the relevant standard in working condition of shock. Meshing the modal and defining the force and constraint are discussed before the simulation. The calculated value based on Ansys is very similar to the result in the actual situation, which proved that the computer aid analysis can be used in the rolled-steel pallet detection in order to decrease the cost and increase the accuracy.

Finite element analysis of cotton ginning state based on ANSYS

2018 ◽  
Vol 89 (11) ◽  
pp. 2142-2153 ◽  
Author(s):  
Xiaochuan Chen ◽  
Di Wang ◽  
Yiping Qiu ◽  
Jun Wang ◽  
Yong Li ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Working Condition ◽  
Cotton Fibers ◽  
Seed Cotton ◽  
Missing Teeth ◽  
Element Analysis ◽  
Simulation Results ◽  
Saw Blade

To analyze the stress state of seed cotton in the process of cotton ginning and to improve the quality of lint, a new model for cotton, the laminated cotton model, is presented based on the idea of a composite laminate. The model assumes the cotton mass is made up of a certain number of cotton fibers, each of which has a different arrangement angle. Based on this model, the ginning process is simulated using finite element analysis. The mechanical properties of a single cotton fiber that is either machine- or hand-picked are obtained. The working condition of the ginning process is described successfully. By analyzing the influence of different working conditions on the serration cotton ginning process, the simulation results show the model prediction is reasonably consistent with existing experiments. For example, to improve the productivity and quality of lint, it is important to guarantee the saw teeth are sharp and smooth, with none being crooked or inverted, and missing teeth on each saw blade should not exceed the specified value.

Finite Element Analysis on Integral Structure of Light Steel Temporary Buildings

2013 ◽  
Vol 405-408 ◽  
pp. 921-924
Author(s):  
Xue Feng Cai ◽  
Zheng Zhang ◽  
Yong Chao Ma ◽  
Ji Zhong Zhou
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Simple Structure ◽  
Lateral Displacement ◽  
Structure Model ◽  
Analysis Model ◽  
Element Analysis ◽  
Finite Element Analysis Model ◽  
Integral Structure ◽  
Set Up

Light steel temporary building is commonly used in the construction site, with advantages on simple structure, repeat used and small deadweight. There are still not enough researches and relevant standards to conduct the design and construction of the buildings. In order to precede to theoretical study on integral structure of light steel temporary buildings a method which used to set up finite element analysis model about integral structure of light steel temporary buildings was proposed in this paper. The method is based on finite element analysis software, Ansys. Using this method a monolayer integral structure, a two-story integral structure and a trilaminar integral structure model were set up. Lateral displacement under design load of the integral structure was solved out by these finite element models.

Simulations and Experiment Analysis of a Piezoelectric Micropump

2012 ◽  
Vol 229-231 ◽  
pp. 1688-1692 ◽  
Author(s):  
Yan Fang Guan ◽  
Ming Gang Shen ◽  
Li Li Han
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Flow Rate ◽  
Piezoelectric Transducer ◽  
Working Condition ◽  
Coupling Analysis ◽  
Element Analysis ◽  
Deep Reactive Ion Etching ◽  
First Order ◽  
Experiment Analysis

The application of micropump in microanalytical reagent is widely. In this paper a piezoelectric micropump model that looks like a sandwitch has been put forward. The main structures of the micropump include inlet and outlet pipe, silicon substrate pump body, piezoelectric transducer. In order to find the excellent driving performance, the modals and piezoelectric-stress coupling analysis of the piezoelectric transducer has been carried out with finite element analysis methods. The result proves that the optimal working condition of the micropump is the 1st mode. Finally the micropump model has been fabricated with silicon deep reactive ion etching and UV irreversible irradiation. Through experiment the flow rate and pressure of the micropump reach the maximum in first-order modal that is less than 1000 Hz, and this is accord with the modal analysis.

The Effect of Hole behind Lining on Safety of Tunnel

2013 ◽  
Vol 477-478 ◽  
pp. 600-603
Author(s):  
Jun Liu ◽  
Guan Hua Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Safety Factor ◽  
Evaluation Method ◽  
Working Condition ◽  
Two Dimensional ◽  
Analysis Software ◽  
Plane Model ◽  
Element Analysis ◽  
Dangerous Section

ABAQUS finite element analysis software and load - structure method are adapted in this paper and the structure is simplified as a two-dimensional plane model. 25 kinds of working condition including five hole sizes: 0.6m, 1.2m, 1.5m, 1.8m, 2.1m and five hole positions varying from vault to arch springing are studied and the safety factor distribution of lining are obtained. By comparing the safety factor at dangerous section in lining with hole to that in no damage lining , a convenient evaluation method about the effect of hole to lining safety is proposed.

The Analysis & Optimization of the Landing Stage Structure of Hydraulic Axis Car

2012 ◽  
Vol 550-553 ◽  
pp. 3088-3091
Author(s):  
Gong Sheng Yang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Working Condition ◽  
Stage Structure ◽  
Force Distribution ◽  
Large Structure ◽  
Element Analysis

At the process of lading large structure with vehicle, the landing stage connects the barges and the dock, it needs to meet a requirement to make the car can be driven to the barges smoothly. Here, on the working condition that lading with hydraulic axis car, finite-element analysis and optimization were taken on the force of the landing stage, then optimized the structure of the landing stage to make it and it’s force distribution more reasonable, and reduced the weight of the landing stage.

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