Finite Element Analysis and Lightweight Design of Crusher Flywheel

2014 ◽  
Vol 684 ◽  
pp. 297-302 ◽  
Author(s):  
Chun Lan Yang ◽  
Da Ming Huang ◽  
Fa Long Cheng
Keyword(s):  
Finite Element ◽  
Parametric Design ◽  
Weak Link ◽  
Lightweight Design ◽  
Great Influence ◽  
Element Model ◽  
Structural Features ◽  
Element Analysis ◽  
Jaw Crusher ◽  
Crushing Force

Traditional jaw crusher has the problems of unreasonable structure, heavy weight, low utilization of material and high cost. This paper chooses the flywheel which has great influence on the total weight as the research object. Finite element method are used to anlysis stress and displacement distribution under the action of maximum crushing force. It shows weak link and surplus position of primary structure. Use the parametric design language APDL to establish and analyze finite element model, based on crusher structural features. Make lightweight design meeting the demands of intensity, stiffness and moment of inertia. The result indicates that modified flywheel is less than the original one by 5%, makes structure more reasonable and stress distribution more even.

The Weight Reduction Optimization of Jaw Crusher about Moving Jaw Based on Parametric Finite Element Analysis

2012 ◽  
Vol 619 ◽  
pp. 275-281
Author(s):  
Chun Lan Yang ◽  
Da Ming Huang ◽  
Ji Fen Xiong ◽  
Xiao Hui Liu
Keyword(s):  
Finite Element ◽  
Optimal Design ◽  
Parametric Design ◽  
Weak Link ◽  
Minimum Weight ◽  
Inertial Force ◽  
Structure Design ◽  
Structure Characteristic ◽  
Element Analysis ◽  
Jaw Crusher

This paper aims at the problems of traditional compound pendulum jaw crusher including unreasonable structure design, heavy weight, low utilization of material and high cost, chooses moving jaw which is the key part of motion mechanism as the optimal design subject, uses finite element method, through statics analysis, obtains stress and displacement distribution of moving jaw that is under the action of maximum fracture force, realizes weak link and surplus part of primary structure. Based on the above-mentioned study, this article uses minimum weight of moving jaw as objective function, combines with structure characteristic of crusher, uses the ANSYS Parametric Design Language (APDL) to establish parameterization model, and combines with the optimal design module OPT, works out the minimum weight of moving jaw under the conditions of meeting intensity and stiffness. The result indicates that moving jaw is less than the original one by 27%, which saves material, reduces cost and weakens additional dynamic load that caused by inertial force of work mechanism, improves dynamics of mechanism to a cert extent, reduces the vibration of mechanism and the wear of part, and extends product service life.

scholarly journals A topology optimization method of robot lightweight design based on the finite element model of assembly and its applications

2020 ◽  
Vol 103 (3) ◽  
pp. 003685042093648
Author(s):  
Liansen Sha ◽  
Andi Lin ◽  
Xinqiao Zhao ◽  
Shaolong Kuang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Topology Optimization ◽  
Lightweight Design ◽  
Element Model ◽  
Optimization Method ◽  
Maximum Displacement ◽  
Element Analysis ◽  
Upper Limb Exoskeleton ◽  
Topology Optimization Method

Topology optimization is a widely used lightweight design method for structural design of the collaborative robot. In this article, a topology optimization method for the robot lightweight design is proposed based on finite element analysis of the assembly so as to get the minimized weight and to avoid the stress analysis distortion phenomenon that compared the conventional topology optimization method by adding equivalent confining forces at the analyzed part’s boundary. For this method, the stress and deformation of the robot’s parts are calculated based on the finite element analysis of the assembly model. Then, the structure of the parts is redesigned with the goal of minimized mass and the constraint of maximum displacement of the robot’s end by topology optimization. The proposed method has the advantages of a better lightweight effect compared with the conventional one, which is demonstrated by a simple two-linkage robot lightweight design. Finally, the method is applied on a 5 degree of freedom upper-limb exoskeleton robot for lightweight design. Results show that there is a 10.4% reduction of the mass compared with the conventional method.

Dynamic Analysis of CNC Gantry Surface Grinder by Finite Element Method

2010 ◽  
Vol 102-104 ◽  
pp. 339-343
Author(s):  
Ze Yu Weng ◽  
Shao Heng Hu ◽  
Nan Nan Zhang ◽  
Hong Gang Ding ◽  
Hong Wu You
Keyword(s):  
Finite Element ◽  
Dynamic Characteristics ◽  
Weak Link ◽  
Element Model ◽  
Structural Features ◽  
Surface Grinding ◽  
Mode Shapes ◽  
Grinding Machines ◽  
Grinding Machine ◽  
Machine Structure

The dynamic characteristics of the grinding machines have an impact on its machining quality and cutting efficiency. In this paper, through the analysis of the structural features of the Large CNC gantry surface grinding machine, the finite element model of structure of the grinder was established on the base of the simplified machine structure, on which carried out its dynamics analysis, obtaining the modal parameters of the orders under different mode shapes. The effect on the dynamic characteristics of machine tools was analyzed under different mode shapes, then the weak link of the surface grinding machine was given, and then how to improve the structural design weakness of surface grinding machine was discussed, all of which provided theoretical basis for improvemental design for the structure of the large CNC gantry surface grinding machine.

Finite Element Analysis of Mechanical Characteristics on the Composite Rubber Suspension of Heavy Vehicle

2011 ◽  
Vol 121-126 ◽  
pp. 1702-1706
Author(s):  
Hui Pang ◽  
Hong Yan Li ◽  
Zong De Fang ◽  
Xiao Yuan Zhu
Keyword(s):  
Finite Element ◽  
Lightweight Design ◽  
Element Model ◽  
Heavy Vehicle ◽  
Virtual Design ◽  
Element Analysis ◽  
Static Mechanical ◽  
Element Approach ◽  
Suspension Stiffness ◽  
Static Mechanical Properties

Taking the composite rubber suspension of a 6×4 heavy vehicle as research object, an accurate finite element model for the composite suspension at loading states is firstly built with consideration of nonlinear contact between spring leaves, and then a new finite element approach for calculating and analyzing static mechanical properties of the composite rubber suspension. Finally, the stress distribution and deformation is analyzed under different loads by using Hypermesh software and the results can be applied to its strength design. And moreover, some primary principles of the composite rubber suspension stiffness and displacement changing with different loads are obtained, which provides reference basis for virtual design and lightweight design of the vehicle composite rubber suspension.

Structural Analysis and Optimization Design of the Frame of YC460LC-8 Excavator

2012 ◽  
Vol 157-158 ◽  
pp. 27-32
Author(s):  
Guang Lin Shi ◽  
Kun Wu ◽  
Lin Zhu
Keyword(s):  
Finite Element ◽  
Optimization Design ◽  
Working Condition ◽  
Weak Link ◽  
Element Model ◽  
Structure Design ◽  
Element Analysis ◽  
Object Use ◽  
Rotary Platform ◽  
Strength And Stiffness

This paper based on a settled type of structure concerning hydraulic excavator rotary platform as the research object, use the method of finite element analysis to build the finite element model in the conditions of three typicals of representative working condition about this rotary platform. By the analysis concerning the strength and stiffness of this platform structure based on the builded model, the weak link about this structure can be find out by us. Finally , according to the optimization structure design about this device, the maximum combined stress related to the easy fatigue failure area in all working condition could be significantly reduced from 162.93MPa to 115.05MPa, decrease by 29.4 percent. Thus, the structure performance could be greatly improved on the premise of guarantee the weight of construction.

Finite Element Analysis for the Mega Columns for XRL West Kowloon Terminus

2013 ◽  
Vol 405-408 ◽  
pp. 1139-1143
Author(s):  
Wei Su ◽  
Ying Sun ◽  
Shi Qing Huang ◽  
Ren Huai Liu
Keyword(s):  
Finite Element ◽  
Stress Distribution ◽  
Parametric Design ◽  
Three Dimensional ◽  
Element Model ◽  
Von Mises Stress ◽  
Element Analysis ◽  
Dimensional Finite Element ◽  
Von Mises ◽  
Three Dimensional Finite Element

Using ANSYS parametric design language, a three-dimensional finite element model is developed to analyze the stress distribution and the strength of the mega columns for XRL West Kowloon Terminus. The detailed von Mises stress distribution in each column, vertical stiffener plates and the diaphragm plates is obtained. From the analysis, the phenomenon of stress concentration is obvious in both upper and lower diaphragm plates. The local value of von Mises stress in them is higher than the yield stress value, which must be avoided by more detailed local structural design.

scholarly journals Finite-Element Analysis on Lightweight Material of Drive Axle Housing

2021 ◽  
Vol 31 (1) ◽  
pp. 41-49
Author(s):  
Feifei Zhao
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Working Conditions ◽  
Hot Stamping ◽  
Element Model ◽  
Structural Features ◽  
Vertical Force ◽  
Element Analysis ◽  
Drive Axle ◽  
Drive Axle Housing

In actual engineering, the drive axle of vehicles is often enlarged to prevent it from being damaged. However, the enlargement will increase the weight of the vehicle, pushing up fuel consumption and exhaust emissions. This common practice is obviously detrimental to the environment and sustainable development. To meet the stiffness and strength requirements on the drive axle housing of Steyr heavy trucks, this paper carries out finite-element analysis on the stiffness and strength of the axile housing under different working conditions, in the light of its actual stress features. According to the production process of drive axle housing in truck, the authors reviewed the development of the materials for high-strength axle housing, which could be properly formed through hot stamping, cold stamping, and mechanical expansion, and briefly introduced the structural features of drive axle housing. Then, a drive axle model was established in the three-dimensional (3D) drawing software Pro/ENGINEER, and converted into a finite-element model in Pro/Mechanica by calling the meshing command. On this basis, the static load of axle housing was analyzed under four working conditions: maximum vertical force, maximum traction, maximum braking force, and maximum lateral force. Finite-element analysis was performed on the meshed model to obtain the displacement and stress cloud maps of the axle housing under each working condition. The results show that the drive axle housing satisfy the requirements on strength, stiffness, and deformation. To sum up, this research improves the design efficiency and quality of products through finite-element analysis on the stiffness and strength of drive axle housing.

scholarly journals Finite Element Analysis of Normal Pressure Hydrocephalus: Influence of CSF Content and Anisotropy in Permeability

2010 ◽  
Vol 7 (3) ◽  
pp. 187-197 ◽  
Author(s):  
K. Shahim ◽  
J.-M. Drezet ◽  
J.-F. Molinari ◽  
R. Sinkus ◽  
S. Momjian
Keyword(s):  
Finite Element ◽  
Normal Pressure Hydrocephalus ◽  
Diffusion Tensor ◽  
Great Influence ◽  
Normal Pressure ◽  
Element Model ◽  
Brain Parenchyma ◽  
Element Analysis ◽  
Cerebral Disease ◽  
The Brain

Hydrocephalus is a cerebral disease where brain ventricles enlarge and compress the brain parenchyma towards the skull leading to symptoms like dementia, walking disorder and incontinence. The origin of normal pressure hydrocephalus is still obscure. In order to study this disease, a finite element model is built using the geometries of the ventricles and the skull measured by magnetic resonance imaging. The brain parenchyma is modelled as a porous medium fully saturated with cerebrospinal fluid (CSF) using Biot's theory of consolidation (1941). Owing to the existence of bundles of axons, the brain parenchyma shows locally anisotropic behaviour. Indeed, permeability is higher along the fibre tracts in the white matter region. In contrast, grey matter is isotropic. Diffusion tensor imaging is used to establish the local CSF content and the fibre tracts direction together with the associated local frame where the permeability coefficients are given by dedicated formulas. The present study shows that both inhomogeneous CSF content and anisotropy in permeability have a great influence on the CSF flow pattern through the parenchyma under an imposed pressure gradient between the ventricles and the subarachnoid spaces.

Finite Element Analysis and Topology Optimization for the Gantry Milling Machine Column Structure

2011 ◽  
Vol 80-81 ◽  
pp. 1016-1020 ◽  
Author(s):  
Wei Huang ◽  
Chang Song Ou ◽  
Hai Man Lu ◽  
Zheng Liang Xie
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Topology Optimization ◽  
Parametric Design ◽  
Design Method ◽  
Element Model ◽  
Optimization Method ◽  
Milling Machine ◽  
Element Analysis ◽  
Column Structure

According to the limit working conditions of the gantry milling machine column, this paper adopts Parametric Design Language APDL to set up finite element model and make finite element analysis. Based on the analysis, the topology optimization method of column structure is proposed, and the optimal design method is established to minimize the weight. The finite element analysis is made again to analyze the rearranged column structure. Compared with the design made through experience, optimally designed column can reduce 10% weight. And the critical displacement and maximum stress are not affected.

scholarly journals Finite Element Analysis of Shield Pipe Structure and Stress Cone Position of 10kV Cable Intermediate Joint

2019 ◽  
Vol 81 ◽  
pp. 01020
Author(s):  
Bo-yu Shang ◽  
Rui-ming Fang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Electric Field ◽  
Electric Field Distribution ◽  
Great Influence ◽  
Element Model ◽  
Optimum Shape ◽  
Element Analysis ◽  
Xlpe Cable ◽  
The Finite Element Model

The shielding tube and stress cone of the intermediate joint of XLPE cable accessory make the potential distribution along the insulation surface linearized to optimize the electric field and. By establishing the finite element model of the intermediate joint of 10kV cable accessory, the electric field distribution of different structure shielding tube and stress cone in different position of the joint is simulated and analyzed. The results show that the structure of shield tube and the position of stress cone are also a parameter characteristic which can not be ignored in the design, and they have a great influence on the distribution of the field strength of the intermediate joint. On the basis of finite element analysis, the optimum shape of shield tube and the best position of stress cone are obtained by comparing and analyzing the variation law of electric field intensity.

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