Based on 3D Virtual Prototype Technology and Finite Element Analysis of the Optimization of the Automobile Front Axle

2014 ◽  
Vol 684 ◽  
pp. 330-334
Author(s):  
Heng Yi Yuan ◽  
Ming Wang He
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Modal Analysis ◽  
Impact Load ◽  
Load Condition ◽  
Front Axle ◽  
Mode Shapes ◽  
Element Analysis ◽  
Emergency Braking ◽  
The Impact

The front axle is an important part of a car, directly affects the dynamic characteristics of car. Based on UG NX6.0 for automobile front axle parts 3D modeling, finite element analysis software ANSYS modal analysis was carried out on the front axle, and extract their first four order natural frequency and vibration mode shapes, the automobile front axle structure stress analysis and stress distribution nephogram of get parts. Analysis of the impact load condition and emergency braking conditions modal analysis, and further to fatigue analysis of the front axle bridge shell, for provide valuable reference data for the reasonable design of parts. For the kinetics of further research and improvement of front axle provides the theoretical basis, but also provides reference to the actual test.

scholarly journals Finite Element Analysis of Impact Energy on Spur Gear

2018 ◽  
Vol 225 ◽  
pp. 06011 ◽  
Author(s):  
Ismail Ali Bin Abdul Aziz ◽  
Daing Mohamad Nafiz Bin Daing Idris ◽  
Mohd Hasnun Arif Bin Hassan ◽  
Mohamad Firdaus Bin Basrawi
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Impact Energy ◽  
High Speed ◽  
Impact Test ◽  
Impact Load ◽  
Gear Tooth ◽  
Test Equipment ◽  
Element Analysis ◽  
The Impact

In high-speed gear drive and power transmission, system impact failure mode always occurs due to the sudden impact and shock loading during the system in running. Therefore, study on the amount of impact energy that can be absorbed by a gear is vital. Impact test equipment has been designed and modelled for the purpose to study the impact energy on gear tooth. This paper mainly focused on Finite Element Analysis (FEA) of impact energy that occurred during simulation involving the impact test equipment modelling. The simulation was conducted using Abaqus software on critical parts of the test equipment to simulate the impact event and generate impact data for analysis. The load cell in the model was assumed to be free fall at a certain height which gives impact load to the test gear. Three different type of material for the test gear were set up in this simulation. Results from the simulation show that each material possesses different impact energy characteristic. Impact energy values increased along with the height of load drop. AISI 1040 were found to be the toughest material at 3.0m drop that could withstand up to 44.87N.m of impact energy. These data will be used to validate data in physical experiments in further study.

Improved Results in Structural Dynamic Calculations by Linking Finite Element Analysis (FEA) and Experimental Modal Analysis (EMA)

1995 ◽  
Author(s):  
Ulrich Gabbert ◽  
Manfred Zehn ◽  
Friedrich Wahl
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Modal Analysis ◽  
Numerical Models ◽  
Mass Matrix ◽  
Computer Time ◽  
Experimental Modal Analysis ◽  
Mode Shapes ◽  
Element Analysis ◽  
Structural Dynamic

Abstract The paper deals with improvements of accuracy of structural dynamic calculations by using both the advantages of Finite Element Analysis (FEA) and Experimental Modal Analysis (EMA). The basis for such improvements are reasonable mechanical and numerical models and accurate frequency response measurements (eigenfrequencies and mode shapes). The paper deals first with reasons for and estimations of errors in numerical and experimental analysis. It can be shown by theory and experiment that neither FEA nor EMA models are unique, due to inevitable incompleteness of the mode shapes and eigenfrequencies from a vibration test. Verification and updating of FE models by linking FEA with EMA are discussed in the paper and mainly focussed on FE models with a large number of degrees of freedom. Hence an update method has been introduced, which leads to an improved model in a relatively small quantity of computer time. It can be shown, that based on measured eigenfrequencies and calculated eigenvectors, an updating of FE-models for real engineering problems, by changing the mass matrix only, is a very efficient procedure with a surprisingly good quality updated model.

Nonlinear Finite Element Analysis of the Piston Rod under the Impact Load

2013 ◽  
Vol 448-453 ◽  
pp. 3359-3364 ◽  
Author(s):  
Xiao Yu Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Impact Load ◽  
Maximum Load ◽  
Nonlinear Finite Element ◽  
Pulse Load ◽  
Transient Dynamic Analysis ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
The Impact

This paper traverses failure phenomenon about the piston rod of rapping device. Through the ANSYS/ls-dyna software, the finite element analysis was carried out on the piston rod ,force of the impact on the piston rod was taken as the form of triangular pulse load, whose time was lasting 0.05s, and it can get the maximum load in 0.025s. Maximum stress occured at the fillet of the piston rod are obtained. Based on nonlinear finite element method for transient dynamic analysis of the piston rod , analysis results are consistent with the actual conditions, and demonstrates the feasibility of finite element analysis.

scholarly journals Analysis on mechanical characteristics of brake wheel and brake shoe of elevator traction machine

2021 ◽  
Vol 2125 (1) ◽  
pp. 012046
Author(s):  
Tao Jiang ◽  
Ziwei Wang ◽  
Zhaolin Ren ◽  
Guangjun Liu ◽  
Facai Ren
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Mechanical Characteristics ◽  
Element Analysis ◽  
Brake Shoe ◽  
Emergency Braking ◽  
The Finite Element Analysis ◽  
Calculation Results ◽  
The Moment ◽  
The Impact

Abstract This paper analyzes the change of brake torque during normal stop and emergency braking of elevator. Taking the permanent magnet synchronous elevator traction machine as an example, the mechanical characteristics of the brake wheel and brake shoe on the brake under emergency braking are analyzed. According to the finite element analysis and calculation results, the impact and stress of the elevator are the largest at the moment of emergency braking, reaching 270.3MPa, and the strain increases gradually. The analysis results can provide reference for the design and verification of brake wheel and brake shoe of elevator traction machine.

Multiaxial Impact Behavior and Modeling of ABS Polymer

2001 ◽  
Author(s):  
A. Saigal ◽  
R. Greif ◽  
Y. Duan ◽  
M. A. Zimmerman
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Strain Rate ◽  
Impact Load ◽  
Mechanical Test ◽  
Impact Behavior ◽  
Analysis Model ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
The Impact

Abstract The multiaxial impact behavior of CYCOLAC GPM5500 (ABS glassy polymer) is obtained as a function of impact velocity and temperature from the standard impact test as specified by ASTM D3763. Finite element analysis (FEA) and ABAQUS/Explicit are used to model the impact behavior of the polymer. The generalized “DSGZ” constitutive model, previously developed by the authors and calibrated using low strain rate uniaxial mechanical test data, is extended to the high strain rate regime and used in the finite element analysis. Load-displacement curves from the finite element analysis are compared with the experimental data and agree well up to the maximum impact load (failure). Therefore, the proposed finite element analysis model can be used to predict the multiaxial impact behaviors of polymers at different temperatures and impact velocities.

The Finite Element Analysis of FOPS for the Loader

2011 ◽  
Vol 467-469 ◽  
pp. 1616-1620 ◽  
Author(s):  
Xin Zhang ◽  
Meng Zang ◽  
Xiao Zhe Liu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Optimization Design ◽  
Impact Load ◽  
Analysis Model ◽  
Element Analysis ◽  
Reliability Design ◽  
Maximum Deformation ◽  
The Finite Element Analysis ◽  
The Impact

The finite element analysis method of falling-object protective structure (FOPS) for the loader is presented in this paper. Taking FOPS for CL958 type loader as an example, this paper builds the analysis model in ANSYS, obtains the displacement of the load center and the maximum deformation of FOPS caused by the impact load and proves the safety by the drop test. It provides the theoretical basis and design principle for the optimization design and reliability design of FOPS for the loader.

scholarly journals Modal Analysis of Optimized Trapezoidal Stiffened Plates under Lateral Pressure and Uniaxial Compression

2021 ◽  
Vol 2 (4) ◽  
pp. 681-693
Author(s):  
Zoltán Virág ◽  
Sándor Szirbik
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Modal Analysis ◽  
Uniaxial Compression ◽  
Natural Frequencies ◽  
Lateral Pressure ◽  
Mode Shapes ◽  
Stiffened Plates ◽  
Elastic Model ◽  
Element Analysis

This paper deals with the modal analysis of optimized trapezoidal stiffened plates with simple supported conditions on the four edges of the base plate. The main objective of the finite element analysis is to investigate the natural frequencies and mode shapes of some stiffened structures subjected to lateral pressure and uniaxial compression in order to identify any potentially dangerous frequencies and eliminate the failure possibilities. The natural frequencies and mode shapes are important parameters in the design of stiffened plates for dynamic loading conditions. In this study, the numerical analysis is performed for such a design of this kind of welded plates which have already been optimized for lateral pressure and uniaxial compression. The objective function of the optimization to be minimized performed with the Excel Solver program is the cost function which contains material and fabrication costs for Gas Metal Arc Welding (GMAW) welding technology. In this study, the eigenvalue extraction used to calculate the natural frequencies and mode shapes is based on the Lanczos iteration methods using the Abaqus software. The structure is made of two grades of steel, which are described with different yield stress while all other material properties of the steels in the isotropic elastic model remain the same. Drawing the conclusion from finite element analysis, this circumstance greatly affects the result.

Modal Analysis of Special High-Pressure Seamless Cylinders Based on ANSYS 12.0

2013 ◽  
Vol 546 ◽  
pp. 122-126
Author(s):  
Xiao Long Hu ◽  
Zhong Bao Qin ◽  
Jian Feng Guo ◽  
Ying Juan Yue
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
High Pressure ◽  
Modal Analysis ◽  
Natural Frequency ◽  
Vibration Frequencies ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
The Impact

This paper discussed the impact of the quantity and position of constraint on the natural frequency of special high-pressure seamless cylinders. The Finite Element modal of the special high-pressure seamless cylinders was constructed based on ANSYS12.0. The vibration frequencies and modal shapes under different conditions were obtained by the Finite Element analysis. The result will be used for improving the safe capability of the Special High-pressure Seamless Cylinders.

Front Axle Finite Element Analysis of Low Floor Bus

2014 ◽  
Vol 543-547 ◽  
pp. 295-298
Author(s):  
Cun Yuan Mu ◽  
Yi Nuo Liu ◽  
Teng Fei Guo
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Field ◽  
Working Conditions ◽  
Static Loading ◽  
Front Axle ◽  
Preliminary Design ◽  
Element Analysis ◽  
Emergency Braking ◽  
Distribution Of Stress

After preliminary design of low floor front axle is finished, finite element analysis module of CATIA is used to calculate the distribution of stress field and displacement field of low floor front axle in the working conditions of vertical static loading, emergency braking as well as side slipping of bus, and then the conclusion will be reached to provide theory basis for front axle design of the whole project.

The Application of UG Finite Element Analysis on Dynamic Load Analysis of Cable Pendulum Bar

2014 ◽  
Vol 1006-1007 ◽  
pp. 331-335
Author(s):  
Xiao Qing Wu ◽  
Ji Ming Xue ◽  
Ying Qiang Zheng ◽  
Huan Gong Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Impact Load ◽  
Steel Wire ◽  
Wire Rope ◽  
Shearing Stress ◽  
Element Analysis ◽  
Locking Mechanism ◽  
Load Analysis ◽  
The Impact

Cable pendulum bars need to withstand not only the gravity of ripe plug and cable but also the impact load of the shedding of ripe plug. In this paper, the cable pendulum bar was modeled and analyzed using finite element analysis by UG NX4, and stiffness strength check was carried out on cable pendulum bar. On this basis, the impact load were calculated and analyzed. The shearing stress of forced off cylinder’s block, strength of steel wire rope and the force of cable pendulum bar’s locking mechanism were checked with the shock loads, and the basic theory to design and development cable pendulum bar were provided.

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