Mechanics Analysis of Omni-Directional Mecanum-Wheel Based on FEM

2012 ◽  
Vol 271-272 ◽  
pp. 1012-1016
Author(s):  
Shao Hua Kang ◽  
Xue Ling Zhang ◽  
Ya Xie
Keyword(s):  
Mechanical Property ◽  
Working Conditions ◽  
Element Model ◽  
Mechanical Analysis ◽  
Mechanical Boundary Condition ◽  
Mechanics Analysis ◽  
Working Status ◽  
Mecanum Wheel ◽  
Failure Life ◽  
The Finite Element Model

The Mechanics property is important for Mecanum-wheel structure. According to function and capacity of wheel, the structure of omni-directional Mecanum-wheel is designed and mechanical boundary condition is analyzed on different working status. On the basis of mechanical analysis, the finite element model is established and loads are applied. Strength and fatigue failure life of every parts are calculated respectively under different working conditions. The result shows that the structure and size of Mecanum-wheel is correct and meet the demand of mechanical property.

Mechanical Analysis on Destruction of Coal Cutters Guide Shoes

2012 ◽  
Vol 226-228 ◽  
pp. 780-783
Author(s):  
Zhi Jun Yang ◽  
Wei Na Zhang
Keyword(s):  
Finite Element ◽  
Large Scale ◽  
Element Model ◽  
Mechanical Analysis ◽  
Analysis Method ◽  
Mechanics Analysis ◽  
Stress Diagram ◽  
Mining Coal ◽  
Coal Cutters ◽  
The Finite Element Model

Some key components’ failure often occurs in the process of the use of large-scale mining coal machine, and seriously affects the production of the enterprise. So it is necessary that analysis on the failure mechanical reason of guide shoes with the coal-winning machine by the modern mechanics analysis method. The stress diagram of guide shoes could be got by static analysis with MATLAB, and the dangerous parts of the finite element model with guide shoes appeared after loading. Finally, analysis on the fatigue strength and fatigue life of components under various complex condition, which provide some reference theory basis for the future related product designing, Manufacturing and maintenance.

Analysis of the Temperature Field of the Diamond Wheel Dressed Using Laser Assisted Ultrasonic-Vibration Combined Dressing Method

2016 ◽  
Vol 874 ◽  
pp. 261-267 ◽  
Author(s):  
Zhi Bo Yang ◽  
Zhen Zhang ◽  
Rui Yun Yang ◽  
Ai Ju Liu
Keyword(s):  
Finite Element ◽  
Temperature Field ◽  
Finite Element Model ◽  
Ultrasonic Vibration ◽  
Working Conditions ◽  
Element Model ◽  
Diamond Wheel ◽  
Dressing Method ◽  
Infrared Temperature Measurement ◽  
The Finite Element Model

During the dressing process of diamond wheel using laser/ultrasonic-vibration combined dressing method, the removal mode of the local materials on the surface of wheel with the use of laser’s heating effect transits from brittle fracture to plastic flow, so that the wear of diamond dresser can be reduced and the dressing efficiency and surface dressing quality can be improved. Using ANSYS analysis software, the three-dimensional units were used and the nonlinearity of the material’s thermophysical properties was taken into account, and thereby, the finite element model of the temperature field of the diamond wheel heated by the laser during the dressing process was constructed. Then, the distributions of the temperature field on the surface and section of the wheel under different technological parameter were acquired. Moreover, the temperature distribution of the dressed wheel under actual working conditions was measured using infrared temperature measurement method. The results indicate that, under the same working conditions, the simulation results using finite element model fit well with the measured values, i.e., the finite element model has important guiding significance to the selection of technological parameters in dressing.

Modeling Method of Assembled Structure Coupling the Characteristics of the Joints

2012 ◽  
Vol 468-471 ◽  
pp. 2141-2148
Author(s):  
Tie Neng Guo ◽  
Xue Li Yu ◽  
Fu Ping Li ◽  
Li Gang Cai ◽  
Ya Hui Cui
Keyword(s):  
Mechanical Properties ◽  
Mechanical Characteristics ◽  
Element Model ◽  
Experimental Investigations ◽  
Beam Elements ◽  
Joint Characteristics ◽  
Proposed Model ◽  
Mechanics Analysis ◽  
Stiffness And Damping ◽  
The Finite Element Model

Mechanical properties of the joints have impacted on the whole mechanical characteristics. Coupling the joint characteristics in the modeling of the machine tool is an important problem in machine mechanics analysis. In order to solve the joint modellings in the assembled structure, this paper presents a new method to creat beam elements between two symmetrical nodes on the contact surface of the joint. The stiffness and damping matrices of the elements are valuated according to the characteristics of the joint. To validate the accuracy of the proposed method, the modeling of an assembled structure with and without the joints is obtained and some corresponding experimental investigations are implemented. The error between the simulated and experimental results of the finite element model is less than 8.8%, while the error of the contact model often used in the existing literatures is one times bigger than the proposed model.

Mechanics Analysis and Optimization of the Reachstacker Spreader

2014 ◽  
Vol 1078 ◽  
pp. 266-270
Author(s):  
Yu Feng Shu ◽  
Yong Feng Zheng
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Maximum Stress ◽  
Element Model ◽  
Static Strength ◽  
Operating Conditions ◽  
Mechanics Analysis ◽  
Calculation Results ◽  
Improvement Measures ◽  
The Finite Element Model

This paper establishes the finite element model of reachstacker spreader, makes static strength calculation under eight typical operating conditions with rated load, based on the calculation results, it points out the weaknesses of spreader and gives some corresponding improvement measures for the drawbacks. Further analysis shows that the maximum stress of improved spreader mechanism has reduced 10.1%, which demonstrates the effectiveness of improvements.

Analysis of Leaf Spring’s Damping Characteristic Based on Nonlinear Finite Element

2011 ◽  
Vol 314-316 ◽  
pp. 1628-1632
Author(s):  
Cui Lian Fan ◽  
Shun Ming Li
Keyword(s):  
Finite Element ◽  
Friction Coefficient ◽  
Working Conditions ◽  
Excitation Frequency ◽  
Element Model ◽  
Nonlinear Finite Element ◽  
Leaf Spring ◽  
Damping Characteristics ◽  
The Finite Element Model ◽  
Sinusoidal Excitation

In order to know about the damping characteristics of leaf spring in the actual working conditions, the finite element model was build with large deformation, interleaf friction and contact considered simultaneously. In the single sinusoidal excitation, the effects of different friction coefficient, amplitude and excitation frequency on the hysteresis and damping characteristics of leaf spring were studied. Many results were reached in the paper. It provided the references for researching the vibration characteristics of leaf spring further in the nonlinear states.

scholarly journals Calculation and analysis of landing double rocker arms holding pole based on finite element simulation

2021 ◽  
Vol 2083 (3) ◽  
pp. 032017
Author(s):  
Xing Zhang ◽  
Yingpeng Shao ◽  
Yu Xing
Keyword(s):  
Finite Element ◽  
Working Conditions ◽  
Engineering Application ◽  
Element Model ◽  
The Finite Element Method ◽  
Safety Hazards ◽  
Element Simulation ◽  
Potential Safety ◽  
The Finite Element Model ◽  
Load Conditions

Abstract Landing double rocker arms holding pole are widely used in the erection of UHV construction towers. Most of the construction arms are based on experience in engineering application, and there are some potential safety hazards. In this paper, the finite element model is established based on the relevant parameters of 700×700mm2 double rocker arm holding pole, and the actual lifting conditions of the pole are analysed. The finite element method is used to simulate nine working conditions for stress analysis. The results show that the double rocker arm holding pole has good mechanical properties under rated load conditions, which verifies the reliability of the arm design. Asymmetric moment hoisting is an important factor threatening the safety of holding pole, which must be strictly controlled.

Structural Design and Analysis on Frame of Blueberry Harvesters Based on ANSYS

2010 ◽  
Vol 26-28 ◽  
pp. 794-799
Author(s):  
Qian Wang ◽  
Zhi Peng Li ◽  
Dao Qiang Wang
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Static Analysis ◽  
Working Conditions ◽  
Structural Design ◽  
Mechanical Characteristics ◽  
Element Model ◽  
Frame Structure ◽  
Ansys Software ◽  
The Finite Element Model

The frame of blueberry harvesters is quite different from other vehicles. In this article, the design for whole frame structure is elaborated. According to the mechanical characteristics of the frame, materials are selected and manufacturability requirements are limited. Based on PRO/E software, accurate model of the frame of blueberry harvesters is established. And then, on the basis of ANSYS software, the finite element model of frame of blueberry harvesters is established to carry out static analysis on full-loaded and distortion working conditions. Results meet the strength requirements and displacement requirements, so it verifies the reasonableness of the design of frame.

Structural Optimization of Packer’ Cone with Material Properties and Mechanics Parameters Based on ANSYS

2012 ◽  
Vol 252 ◽  
pp. 172-175
Author(s):  
Zhi Ping Guo ◽  
Wei Guo ◽  
Yan Fei Wang ◽  
Guan Fu Li ◽  
Yan Zheng Lu
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Material Properties ◽  
Theoretical Basis ◽  
Cone Angle ◽  
Element Model ◽  
Mechanical Analysis ◽  
Calculation Results ◽  
Set Up ◽  
The Finite Element Model

Cone is one part of a packer. To understand the seal effectiveness of the packer, mechanical analysis must be made for it. The finite element model of packer is set up and packer minimum setting load changes are calculated under different climb angle of cone. Results show that reduce the cone angle of climb can make the packer sealing load significantly lower.The calculation results provide the theoretical basis for the real operation.

Engineering Mechanics Analysis of Pigging for S Elbow of Oil-Gas Pipe

2013 ◽  
Vol 700 ◽  
pp. 128-131
Author(s):  
Shang Na Song ◽  
Ming Zeng ◽  
Wen Ming Wang ◽  
Shi Min Zhang ◽  
Da Yu ◽  
...  
Keyword(s):  
Element Model ◽  
Operating Parameters ◽  
Mechanics Analysis ◽  
Transmission Pipeline ◽  
Pipeline Project ◽  
Engineering Mechanics ◽  
The Impact ◽  
Oil Gas ◽  
The Relationship ◽  
The Finite Element Model

S elbow in Zhijing River is one of the key parts in the East Gas Transmission Pipeline Project. It brings a great deal of uncertainty and risk factors for pipeline pigging operations. By analysis on dynamic of pig pigging and the impact over bending, this paper established the finite element model, simulated pigging process on the condition that the operating parameters of the pipeline pigging operations were given, analyzed the relationship among pipeline pressure, foam pigging speed and pipe stress, then obtained the security of pipeline pigging operations.

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