The Application of Multi-Wedge Cross Wedge Rolling Forming Long Shaft Technology

2011 ◽  
Vol 101-102 ◽  
pp. 1002-1005 ◽  
Author(s):  
Jing Zhao ◽  
Li Qun Lu
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Finite Element Model ◽  
Rolling Mill ◽  
Three Dimensional ◽  
Element Model ◽  
Solid Model ◽  
The Finite Element Method ◽  
Cross Wedge Rolling ◽  
The Finite Element Model

The process of multi-wedge cross wedge rolling is an advanced precision technology for forming long shaft parts such as automobile semi-axes. Three-dimensional solid model and the finite element model of semi-axes on automobile and dies of its cross wedge rolling were established. The process of cross wedge rolling was simulated according to the actual dimension of semi-axes on automobile utilizing the finite element method (FEM)software ANSYS/LS-DYNA. The required force parameters for designing semi-axes mill are determined. The appropriate roller width was determined according to the length and diameter of semi-axes on automobile. The results have provided the basis for the design of specific structure of automobile semi-axes cross wedge rolling mill.

The Thermal Effect in Wheel and Rail during the Brake of Port Crane

2012 ◽  
Vol 487 ◽  
pp. 879-883
Author(s):  
Jiang Wei Wu
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Finite Element Model ◽  
Thermal Effect ◽  
Thermal Effects ◽  
Element Model ◽  
The Finite Element Method ◽  
Finite Element Software ◽  
Frictional Coefficients ◽  
The Finite Element Model

With the port crane getting bigger and heavier, and also moving much faster than before, the thermal effect in wheel and rail during the brake process can be a reason of the failure of port crane. In this paper, the thermal effect during the brake process of port crane is studied using the finite element method. Based on the finite element model, the ANSYS10.0 finite element software is used. The thermal effects under different coefficients are discussed. Three different slide speed of wheel, two different loads of crane, and three different frictional coefficients are applied. The importance of the different coefficients is obtained from the numerical results.

Study on the Static Performance of Sand Washing Tower Based on ANSYS

2014 ◽  
Vol 578-579 ◽  
pp. 917-920
Author(s):  
Jiang Hua Lv ◽  
Jia Peng Shi ◽  
Wei Hua Zhu ◽  
Feng Zhu ◽  
Chang Yan
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Stress Distribution ◽  
Finite Element Model ◽  
Element Model ◽  
Static Stability ◽  
Calculation Model ◽  
The Finite Element Method ◽  
Static Performance ◽  
The Finite Element Model

In this paper, using the finite element method,check for the Ken Swart project sand flushing water all operating tower in static stability. First of all, select unit and a calculation model, establish the finite element model; Then analys the displacement distribution and stress distribution of the structure in the five conditions.

Experimental and Analytical Evaluation of Buckling Forces of a Spiral Wound Flexible Gasket

2005 ◽  
Author(s):  
Reid A. Larson ◽  
George Bibel
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Three Dimensional ◽  
Element Model ◽  
The Finite Element Method ◽  
Original Experiment ◽  
Series Of Experiments ◽  
Metallic Rings ◽  
The Finite Element Model ◽  
Spiral Wound

Inward buckling forces of spiral wound flexible gaskets is studied experimentally and analytically using the finite element method. A series of experiments was conducted utilizing an NPS 16 Class 300 weld-neck pipe and flange conforming to specification ASME B16.5. Strain gauges were mounted on the inner and outer metallic rings of the spiral wound sealing gasket and strain data was recorded during initial bolt pre-loading. Using this particular experiment as a pattern, a finite element model was developed to simulate the flange, bolt, and nonlinear gasket response under identical loading conditions. The computer-generated solid model consists of a quarter-symmetry, three-dimensional assembly constructed to the specifications of the pipe, flange, bolts, and gaskets used in the hardware trials. The finite element model was loaded to simulate the initial bolt pre-loading through the same range as in the original experiment. Solutions obtained from the finite element model are compared with the experimental results, and conclusions are drawn.

Finite Element Modal Analysis of Reciprocating Compressor Crankshaft Based on ANSYS Workbench

2014 ◽  
Vol 488-489 ◽  
pp. 1208-1210
Author(s):  
You Jun Zhang ◽  
Nan Zhao ◽  
Jie Lu
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Modal Analysis ◽  
Three Dimensional ◽  
Element Model ◽  
Solid Model ◽  
Reciprocating Compressor ◽  
The Finite Element Model ◽  
Ansys Workbench

Crankshaft is one of the important parts of reciprocating compressor. It takes a large reciprocating compressor crankshaft as the research object. First it establishes the three-dimensional solid model of the crankshaft by the software Pro/E. Then it contacts the Pro/E and ANSYS Workbench by the interface to establish the finite element model of the crankshaft. After taking the modal analysis and calculations of the crankshaft in the ANSYS Workbench module, it obtains the foundation for the design of the crankshaft structure.

FEM Analysis and Optimization of Large Load Suspended Platform

2012 ◽  
Vol 569 ◽  
pp. 415-419
Author(s):  
Xi Jian Zheng ◽  
Yong Shang Han ◽  
Zheng Yi Xie
Keyword(s):  
Finite Element Method ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Finite Element Model ◽  
Fem Analysis ◽  
Element Model ◽  
Test Results ◽  
The Finite Element Method ◽  
Element Analysis ◽  
The Finite Element Model

Based on the Finite Element Method, the suspended platform of temporarily installed suspended access equipment was simplified and the special connection positions were dealt with rigidization and coupling, thus the finite element model of suspended platform was established. Analyzing major structures of finite element model in different section dimensions, the reasonable scheme could be ascertained and the section dimensions of major structures in different materials could be obtained. Combining with the test results, the rationality of finite element analysis could be proved. The study could provide reference for the similar products on design and development.

The Application of the Finite Element in Analyzing the Bubble in the Ship Wake

2014 ◽  
Vol 556-562 ◽  
pp. 4271-4274
Author(s):  
Qun Zhang ◽  
Ying Min Wang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Resonant Frequency ◽  
Finite Element Model ◽  
Element Model ◽  
The Finite Element Method ◽  
Ship Wake ◽  
Element Computation ◽  
The Finite Element Model ◽  
Finite Element Computation

The finite element method was used to analyze the bubble in the ship wake. The single bubble model in the ship wake was created and studied after the material property parameters of the bubble were got by the finite element computation. The finite element model was then analyzed by SYSNOISE. From the analyzing, the displacement of the point on the surface of the bubble was gained when the sound press changing as the frequency varies; the distribution of the pressure was displayed when the frequency of the sound is equal to the resonant frequency of the bubble.

scholarly journals A Finite Element Model for Underwater Sound Propagation in 2-D Environment

2021 ◽  
Vol 9 (9) ◽  
pp. 956
Author(s):  
Yi-Qing Zhou ◽  
Wen-Yu Luo
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Finite Element Model ◽  
Sound Propagation ◽  
Element Model ◽  
Two Dimensional ◽  
Underwater Sound ◽  
The Finite Element Method ◽  
The Finite Element Model ◽  
Element Method

The finite element method is a popular numerical method in engineering applications. However, there is not enough research about the finite element method in underwater sound propagation. The finite element method can achieve high accuracy and great universality. We aim to develop a three-dimensional finite element model focusing on underwater sound propagation. As the foundation of this research, we put forward a finite element model in the Cartesian coordinate system for a sound field in a two-dimensional environment. We firstly introduce the details of the implementation of the finite element model, as well as different methods to deal with boundary conditions and a comparison of these methods. Then, we use four-node quadrilateral elements to discretize the physical domain, and apply the perfectly matched layer approach to deal with the infinite region. After that, we apply the model to underwater sound propagation problems including the wedge-shaped waveguide benchmark problem and the problem where the bathymetry consists of a sloping region and a flat region. The results by the presented finite element model are in excellent agreement with analytical and benchmark numerical solutions, implying that the presented finite element model is able to solve complex two-dimensional underwater sound propagation problems accurately. In the end, we compare the finite element model with the popular normal mode model KRAKEN by calculating sound fields in Pekeris waveguides, and find that the finite element model has better universality than KRAKEN.

scholarly journals EVOLUTION OF ANALYTICAL ROTATIVE SURFACE SHAPING

2019 ◽  
Vol 7 (2) ◽  
pp. 21-25
Author(s):  
Галина Кравченко ◽  
Galina Kravchenko ◽  
Елена Труфанова ◽  
Elena Trufanova ◽  
Алина Шарап ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Finite Element Model ◽  
Element Model ◽  
The Finite Element Method ◽  
Dynamic Calculation ◽  
Optimum Form ◽  
Surface Shaping ◽  
Design Solutions ◽  
The Finite Element Model

The evolution of the formation of a rotative surface formed by an arbitrary spatial curve by rolling without sliding the moving torso along the fixed torso is studied. The optimum form for creation of unique architectural appearance of a construction is received. The finite element model of the building of parametric architecture by the finite element method is developed. To confirm the correctness of the design solutions, the dynamic calculation and analysis of the obtained frequencies and eigenfrequencies were performed.

An Investigation of Stresses in Bolted Connectors for Marine Risers

1982 ◽  
Vol 104 (1) ◽  
pp. 84-90 ◽  
Author(s):  
M. C. Moyer ◽  
K. M. Marshek
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Finite Element Model ◽  
Applied Load ◽  
Element Model ◽  
Close Correlation ◽  
Fatigue Analysis ◽  
The Finite Element Method ◽  
The Finite Element Model ◽  
Element Method

This paper presents a procedure on the finite element method for analyzing a bolted flange connector and compares this method with three traditional approaches. The finite element method considers such effects as flange interface separation, nonlinear and nonconstant flange stiffness, and bolt bending. A comparison of the finite element model with the three traditional methods (each employs a formula for flange stiffness) shows a fairly close correlation for total bolt force versus applied load, but a wide discrepancy for maximum bolt stress versus applied load. The discrepancy between the finite element model analysis and the three other methods (empirical by Weiss and Wallner, truncated conical area by Roetscher, and the classical hollow cylinder approach) can be attributed to the change in flange stiffness during separation and the occurrence of bolt bending. The selected method of analysis was shown to significantly affect the results of a bolt fatigue analysis, but was shown to have little effect on a static analysis. In offshore applications, the environment creates dynamic stresses which make a fatigue analysis essential for long-term safety.

Analysis of Hydroelectric Unit’s Upper Bracket Based on Test and FEM

2014 ◽  
Vol 721 ◽  
pp. 131-134
Author(s):  
Mi Mi Xia ◽  
Yong Gang Li
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Element Model ◽  
The Finite Element Method ◽  
Ansys Software ◽  
Element Analysis ◽  
Hydroelectric Unit ◽  
The Finite Element Analysis ◽  
Strain Rosette ◽  
The Finite Element Model

To research the load upper bracket of Francis hydroelectric unit, then established the finite-element model, and analyzed the structure stress of 7 operating condition points with the ANSYS software. By the strain rosette test, acquired the data of stress-strain in the area of stress concentration of the upper bracket. The inaccuracy was considered below 5% by analyzing the contradistinction between the finite-element analysis and the test, and match the engineering precision and the test was reliable. The finite-element method could be used to judge the stress of the upper bracket, and it could provide reference for the Structural optimization and improvement too.

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