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.

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 Simulation and Analysis of Fluid-Solid Coupling of Wave Impact Sandcastle Based on COMSOL

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Zhen Ouyang ◽  
Ke Wang ◽  
Zihao Yu ◽  
Kaikai Xu ◽  
Qianyu Zhao ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Simulation Analysis ◽  
Coupling Model ◽  
Complex Problem ◽  
Wave Impact ◽  
Element Analysis ◽  
Quantitative Calculation ◽  
The Finite Element Analysis ◽  
The Impact

It is a complex problem to study the interaction between sand castle and flowing water, which needs to consider the complexity of seawater flow and the stress of sand castle structure. The authors use the fluid-solid coupling model to establish the connection between the fluid field and the structural mechanical field, and use the finite element analysis to complete the simulation modeling of the transient process of wave impact and sandcastle foundation deformation. This paper analyzes the stress and the first principal strain of the sand castle foundation in the direction of flow velocity when the sand castle foundation is hit by waves, as a method to judge the strength of the sand castle.The best shape: the boundary value of sand castle collapse caused by strain have been determined, so as to obtain the maximum stress that a sand castle foundation can bear before collapse, which makes it possible to use the fatigue strength calculation theory of sand castle solid to carry out the quantitative calculation of sand castle durability. At the same time, the impact of waves is abstracted as wave motion equation. Finally, the finite element analysis technology is adopted to calculate the main strain of sandcastles of different shapes under the impact of the same wave, and through the comparison of the main strain, the authors get the sandcastle shape with the strongest anti-wave impact ability, which is the eccentric circular platform body.Affected by rain: the authors considered the effect of rainwater infiltration on the sandcastle's stress, and simplified the process of rain as a continuous and uniform infiltration of rain into the sandcastle's surface. The rain changes the gravity of the sand on the castle's surface. Simulation analysis is adopted to calculate the surface stress of sand castle with different degree of water seepage and different geometry. By comparison, it has been found that the smooth cone is more able to withstand the infiltration of rain without collapse. 

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.

The Finite Element Analysis on Can Coiler of Gilling Machine

2012 ◽  
Vol 215-216 ◽  
pp. 837-841 ◽  
Author(s):  
Bin Lin ◽  
Xiao Fei Dong ◽  
Guan Wei Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Coordinate System ◽  
Contact Analysis ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Comparison Of The Results ◽  
Distribution Of Stress ◽  
The Impact ◽  
Bearing Structure

This paper first analyzes the structure of can coiler to estimate the load of the internal bearing structure and then uses the Pro/e software to calculate the mass and centroid of the can coiler, in the same coordinate system to determine the load of the bearing. Next, the intensity of bearing under different conditions will be analyzed by using the ANSYS contact analysis module, from which the distribution of stress and size of extreme value can be observed. At last, the impact of load changes on the stress will be analyzed based on the comparison of the results.

Triangulation Based Digitizing of Tooling and Sheet Metal Part Surfaces - Measuring Technique, Analysis of Deviation to CAD and Remarks on Use of 3D-Coordinate Fields for the Finite Element Analysis

2007 ◽  
Vol 344 ◽  
pp. 847-853 ◽  
Author(s):  
J. Hecht ◽  
K. Lamprecht ◽  
Marion Merklein ◽  
Konstantin Galanulis ◽  
J. Steinbeck
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Element Analysis ◽  
Discrete State ◽  
Full Field ◽  
The Finite Element Analysis ◽  
Hydroforming Process ◽  
Fringe Patterns ◽  
Formed Part ◽  
The Impact

The dynamic development of highly accurate optical measuring machines within the last years pushed the introduction of digitizing techniques to many applications in the fields of quality control, reverse engineering and rapid prototyping. By projecting fringe patterns onto the object's surface and recording pictures of the curvature dependant deformation of the pattern, 3D coordinates for each camera pixel are calculated on the basis of the principle of triangulation. The generation of a polygon mesh can be used for the analysis of the deviation of a die or a formed part to the initial CAD data, i.e. by means of full field or section based comparison. This paper presents the application of the above mentioned techniques on a double sheet hydroforming process. The gathered 3D data of the clam-shell part as well as of the tooling dies served for the calculation of the deviation to the respective reference geometry. With respect to the utilization of digitized tooling data within the finite element analysis, further investigations were performed on the impact of data reduction strategies. Aiming on the minimization of the necessary number of elements, representing the tooling surface in a discrete state, and on the request for a sufficient degree of accuracy, these strategies have to be considered of high priority.

Using Magnetic Measurement Technology in Marine Riser Stress Detection

2010 ◽  
Author(s):  
Fanshun Meng ◽  
Rui Deng ◽  
Dawei Wang ◽  
Yanming Huang ◽  
Liyan Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Magnetic Measurement ◽  
Measurement Technology ◽  
Stress Detection ◽  
Marine Riser ◽  
Element Analysis ◽  
Element Simulation ◽  
The Finite Element Analysis ◽  
The Impact

The marine riser bears various power loads during operation. We designed the Quadrupole-type magnetic measurement probe based on the inverse magnetostrictive effect (the impact of stress on the magnetization) and performed finite element simulation and experimental analysis. The results of both the finite element analysis and magnetic measurement basically follow the same trend, so we conclude that this four-pole magnetic probe measurement can quantitatively evaluate the force state in a marine riser.

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.

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.

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.

Sign in / Sign up

Export Citation Format

Share Document