Research on FEA and Optimizing for Structural Design of Pipelayer' Boom

2011 ◽  
Vol 311-313 ◽  
pp. 1370-1374
Author(s):  
Ju An Zhang ◽  
Zhi Qiang Guo ◽  
Jin Fa Xie
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Structural Design ◽  
Theoretical Basis ◽  
Three Dimensional ◽  
Material Consumption ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Ansys Workbench

Based on the tool of the ANSYS Workbench software, the modeling of three-dimensional Entity, meshing and dealing of loads and constraints has been done on the pipelayer’boom. According to the finite element analysis of pipelayer’boom in three basic conditions by the parameter of width, height and thickness, the material consumption of making boom is significantly reduced. All this is done in the premise of ensuring the safety of pipelayer’ boom with the objective of minimizing the quality by the finite element optimization. And the results will be the theoretical basis of the design and improvement of Pipelayer’ boom.

The Finite-Element Analysis of the Main Frame of the Airborne Photoelectric Platform

2012 ◽  
Vol 562-564 ◽  
pp. 1943-1946
Author(s):  
Yong Hu ◽  
Jin Gan Song ◽  
Qing Zou ◽  
Ke Zhu ◽  
Xiao Long Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Weak Links ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Overall Performance ◽  
Sufficient Strength ◽  
Ansys Workbench ◽  
Main Frame

Because both of the volume and the weight of the photoelectric platform are small, the structure of two frames and two axes is used in the photoelectric platform. As the key component of the photoelectric platform, the main frame should have sufficient strength and rigidity. In order to achieve this object, three-dimensional entity model of the main frame is established using CATIA software. Then the finite-element analysis of the model is finished with ANSYS Workbench. Based on the analysis results, the weak links of the main frame is found. Then these links are improved and the main frame is analyzed again. After improving the structure, the results of the finite-element analysis show that the main frame meets the requirements of design and has perfect overall performance.

Optimization Design in the Driving Gear Wheel Axle of Triangular Rubber Track Conversion

2011 ◽  
Vol 308-310 ◽  
pp. 513-516 ◽  
Author(s):  
Zhen Ning Hu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Optimization Design ◽  
Three Dimensional ◽  
Gear Wheel ◽  
Three Dimensional Model ◽  
Element Analysis ◽  
Construction Machinery ◽  
The Finite Element Analysis ◽  
Ansys Workbench

The heavy triangular rubber track conversion for the construction machinery has existed the disadvantage for weight oversized. The effective reduced triangular rubber track conversion's weight is essential in the engineering design. This article established one kind of triangular rubber track conversion driving gear wheel axle's three-dimensional model, integrated dynamics analysis has carried on the finite element analysis to it, based on this and carried on the size using Ansys Workbench to optimize for its most superior structure size, finally to optimized the result to carry on the finite element analysis once more. The result contrast indicated that at maintains under the wheel axle stress level basic invariable premise, after the optimized wheel axle weight reduces greatly, enhanced track wheel's performance effectively.

Finite Element Analysis of Nonuniformity of Tires with Imperfections5

2007 ◽  
Vol 35 (3) ◽  
pp. 226-238 ◽  
Author(s):  
K. M. Jeong ◽  
K. W. Kim ◽  
H. G. Beom ◽  
J. U. Park
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Element Model ◽  
Radial Force ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Dimensional Finite Element ◽  
Force Variation ◽  
Three Dimensional Finite Element

Abstract The effects of variations in stiffness and geometry on the nonuniformity of tires are investigated by using the finite element analysis. In order to evaluate tire uniformity, a three-dimensional finite element model of the tire with imperfections is developed. This paper considers how imperfections, such as variations in stiffness or geometry and run-out, contribute to detrimental effects on tire nonuniformity. It is found that the radial force variation of a tire with imperfections depends strongly on the geometrical variations of the tire.

Modeling and experimental verification on directivity of an electret cell array loudspeaker

2012 ◽  
Vol 24 (3) ◽  
pp. 326-333 ◽  
Author(s):  
Yu-Chi Chen ◽  
Wen-Ching Ko ◽  
Han-Lung Chen ◽  
Hsu-Ching Liao ◽  
Wen-Jong Wu ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Digital Control System ◽  
Analysis Model ◽  
Cell Array ◽  
Element Analysis ◽  
Finite Element Analysis Model ◽  
The Finite Element Analysis ◽  
Directivity Characteristics

We propose a model to give us a method to investigate the characteristic three-dimensional directivity in an arbitrarily configured flexible electret-based loudspeaker. In recent years, novel electret loudspeakers have attracted much interest due to their being lightweight, paper thin, and possessing excellent mid- to high-frequency responses. Increasing or decreasing the directivity of an electret loudspeaker makes it excellent for adoption to many applications, especially for directing sound to a particular area or specific audio location. Herein, we detail a novel electret loudspeaker that possesses various directivities and is based on various structures of spacers instead of having to use multichannel amplifiers and a complicated digital control system. In order to study the directivity of an electret loudspeaker based on an array structure which can be adopted for various applications, the horizontal and vertical polar directivity characteristics as a function of frequency were simulated by a finite-element analysis model. To validate the finite-element analysis model, the beam pattern of the electret loudspeaker was measured in an anechoic room. Both the simulated and experimental results are detailed in this article to validate the various assertions related to the directivity of electret cell-based smart speakers.

scholarly journals Theoretical and experimental research on a new rotating standing wave ultrasonic motor

2021 ◽  
Vol 2125 (1) ◽  
pp. 012047
Author(s):  
Xiaozhu Wang ◽  
Jian Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Standing Wave ◽  
Theoretical Basis ◽  
Integrated Design ◽  
Ultrasonic Motor ◽  
Element Analysis ◽  
Optimum Position ◽  
The Finite Element Analysis ◽  
Disc Spring

Abstract In this paper, a new rotating standing wave ultrasonic motor with multiple driving teeth is proposed. Using the method of adding additional teeth, the correction of the B06 surface of the ultrasonic motor vibrator is expected, the design of the optimum position of the drive tooth is realized. At the same time, a method of reducing the stiffness of the rotor is proposed, and the flexibility is met, the integrated design of the rotor and the pressure device can be realized by removing the disc spring. The accuracy of the finite element analysis is verified by the vibration test of the prototype oscillator. The finite element analysis of the main structure parameters of the influence oscillator mode and natural frequency is carried out. It provides theoretical basis for the design and machining of vibration.

Study on the cavity closure behavior of steel ingots during open die forging

2019 ◽  
Vol 233 (13) ◽  
pp. 2447-2457
Author(s):  
Yongchul Kwon ◽  
Sangsik Kim ◽  
Jonghun Kang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Theoretical Basis ◽  
Effective Strain ◽  
Element Analysis ◽  
Large Steel ◽  
The Finite Element Analysis ◽  
Cavity Closure ◽  
Steel Ingots ◽  
Open Die Forging

The manufacturing of sound forgings from large steel ingots requires that internal cavity defects generated during the steel ingot solidification process be compressed by open die forging. The forging ratio that is generally recommended to remove internal defects in large forged products is 3S (threefold); however, the practice lacks a theoretical basis. In this study, a forging experiment and a finite element analysis were performed to investigate the correlation between the forging ratio for large steel ingots (3S) and the cavity closure behavior. First, a hot compression experiment was performed by varying the temperature and strain rate, and the flow stress data observed in the experiment was applied to the finite element analysis. In the experiment for the cogging process, the forging ratio was applied to an actual non-compressive defect material. The finite element analysis was performed using the same forging path as the forging experiment. In the cogging experiment, cavity closure was found by ultrasonic inspection at the forging ratio of 2.9S. The finite element analysis showed that the size of the cavity was significantly decreased at the forging ratio of 2.9S. A finite element analysis was also performed to investigate effective strain and hydrostatic stress at the forging ratio of 2.9S. Finally, this article provides the theoretical basis for the limitation of the internal defect size in initial materials, the threshold effective strain, and the limiting forging ratio of forged products to ensure the internal soundness of large forged products.

scholarly journals The Generalized Untwist Problem of Rotating Blades: A Coupled Aeroelastic Formulation

1994 ◽  
Author(s):  
Gao-Lian Liu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Cross Section ◽  
Theoretical Basis ◽  
Variational Principles ◽  
Element Analysis ◽  
Rotating Blades ◽  
Section Shape ◽  
The Finite Element Analysis ◽  
Elastic Distortion

The untwist of rotating blades in turbomachines treated so far in the literatare simply as a pure elasticity problem is generalized and formulated rigorously as a problem of aeroelasticity by variational principles (VPs) and generalized VP (GVP). It takes into account not only the centrifugal force, but also the aeroelastic interaction between blades and the flow as well as the elastic distortion of the cross section shape of blades, assuming the material to be linearly elastic but nonisotropic. Thus, a new rigorous theoretical basis for the finite element analysis of blade untwist in turbomachine design is provided.

Study of the Process of Turbine Blade and Fixture Design Based on UG and ANSYS

2011 ◽  
Vol 421 ◽  
pp. 369-372
Author(s):  
Jie Shao Xin
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Analysis ◽  
Turbine Blade ◽  
Theoretical Basis ◽  
Three Dimensional ◽  
Processing Technology ◽  
Fixture Design ◽  
Ansys Software ◽  
Element Analysis

This paper made an analysis on the process of turbine blade, and completed the three-dimensional design of milling and cutting fixture used in the process on the UG software. After the stress analysis of the workpiece is completed, the author made a finite element analysis on both the blades and the main parts of the fixture with the help of ANSYS software, the results of the research provide theoretical basis for the development of reasonable processing technology and reliable workpiece assembly.

Structure Analysis of Electron Gun Deflection Coil Based on ProE and ANSYS

2011 ◽  
Vol 201-203 ◽  
pp. 1352-1355
Author(s):  
Hai Lang Liu ◽  
Rui Bin Zhang ◽  
Yi Ping Huang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Structure Analysis ◽  
Structural Design ◽  
Electron Gun ◽  
Structure Modeling ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Coil Size

Through the example of the electron gun deflection coil, this paper implements the structure modeling with ProE and makes the finite element analysis with ANSYS .The structure analysis is performed by the combination of the advantages of two softwares. The reasonableness of the design is verified. This method helps to optimize the structural design of the coil. The production of precision of the coil was improved, and coil size can effectively control and reduce material waste.

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