Analysis of the vertical moving table type broaching machine

2020 ◽  
Vol 14 (3) ◽  
pp. 7152-7169
Author(s):  
Okka Adiyanto ◽  
Park In Soo ◽  
Angga Senoaji Hermanto ◽  
Choi Won Sik
Keyword(s):  
High Speed ◽  
Structural Characteristics ◽  
High Speed Steel ◽  
Frictional Stress ◽  
Element Analysis ◽  
Friction Characteristic ◽  
Maximum Deformation ◽  
Hydraulic Machines ◽  
Speed Range ◽  
Physical Prototype

Broaching is a type of machining that uses a toothed tool similar to a saw. There are several types of broaching machines includes linear broaching machines and hydraulic machines.  Early linear broaching machines were driven mechanically by screws. However, hydraulic machines are faster, smoother in operation, and allow for high-speed steel broaches to be used. The purpose of this study is to an analysis of the vertical moving table type in the broaching machine. In this study, finite element analysis was carried out to examine the structural characteristics of broaching machine design. A model was created in CATIA software and analyzed with ANSYS to find the structural characteristics. The friction characteristic of PBT-40 material was also investigated. This material is recommended for guide rail surface lamination to reduce the friction coefficient and ram body wear. The simulation results provide information for the next step of development before physical prototype will be made. The maximum deformation of the workpiece table was 0.0517 mm on the positive Z-axis, and the maximum deformation on the pulling head device was 0.0598 mm on the negative Z-axis. The friction coefficients were between 0.013 and 0.047 in the sliding speed range of 0.06 to 0.34 m/s. The PBT-40 material has a wear coefficient of 1.604x10-13 m3/Nm according to the test. From the ANSYS friction simulation, it can be concluded that the PBT-40 material would not easily wear out during operation of the machine. It can be seen that small frictional stress occurred on the surface ranging from 8.273x10-5 to 8.381x10-5 MPa.

Torque imporvement of IPM motors with skewing magnetic designs

2021 ◽  
pp. 3-10
Author(s):  
Dinh Hai Linh
Keyword(s):  
Permanent Magnet ◽  
High Speed ◽  
Torque Ripple ◽  
Maintenance Cost ◽  
Permanent Magnet Motor ◽  
Element Analysis ◽  
Speed Range ◽  
Interior Permanent Magnet ◽  
Interior Permanent Magnet Motor ◽  
Wide Speed Range

In this paper, a type interior permanent magnet synchronous motor designs is proposed for sport scooter application to improve constant torque wide speed performance. Interior Permanent Magnet machines are widely used in automotive applications for their wide-speed range operation and low maintenance cost. An existing permanent magnet motor (commercial QS Motor) is 3 kW-3000 rpm. In order to improve torque and power in wide speed range, a IPM electric motor 5.5 kW -5000 rpm can run up to 100 km/h: An Step-Skewing Interior Permanent Magnet motor alternatives is designed and optimized in detail with optimal magnetic segment V shape. The electromagnetic charateristics of Interior Permanent Magnet motors with V shape are compared with the reference Surface Permanent Magnet motor for the same geometry parameter requirements. Detailed loss and efficiency result is also analyzed at rate and maximum speeds. A prototype motor is manufactured, and initial experimental tests are performed. Detailed comparison between Finite Element Analysis and test data are also presented. It is shown that it is possible to have an optimized Interior Permanent Magnet motor for such high-speed traction application. This paper will figure out optimal angle of magnetic V shape for maximum torque and minimum torque ripple.

The Finite Element Analysis and Optimization of Subway Steel Structure Work Platform Based on Workbench and Pro/E in a Subway

2012 ◽  
Vol 538-541 ◽  
pp. 2953-2956
Author(s):  
Ya Li ◽  
Guang Sheng Ren
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Structural Characteristics ◽  
Steel Structure ◽  
Strength Analysis ◽  
Element Analysis ◽  
Maximum Deformation ◽  
Software Model ◽  
The Finite Element Analysis ◽  
Calculation Results

The static and stability analysis of steel structure were taken according to steel structure work platform’s requirements and structural characteristics in a subway parking space by using the software model which is established by Pro/E software and implanted into the finite element analysis software ANSYS Workbench. The maximum deformation and stress in design load of the steel structure were calculated and the linear stress strength analysis of the key parts was carried out, also both the analysis and testing of the supporting pillar’s stability were performed. The results show that the structure model established by Pro/E and the calculation method are reasonable. Moreover, the calculation results are of high accuracy. The profile size is properly chosen and the structure bearing capacity and deformation meet the design requirements.

scholarly journals Data-driven Prediction of Temperature Evolution in Metallic Additive Manufacturing Process

2021 ◽  
Author(s):  
Quy Duc Thinh Pham ◽  
Truong Vinh Hoang ◽  
Quoc Tuan Pham ◽  
Than Phuc Huynh ◽  
Van Xuan Tran ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
High Speed ◽  
High Speed Steel ◽  
Numerical Data ◽  
Temperature Evolution ◽  
Data Driven ◽  
Temperature Fields ◽  
Sampling Point ◽  
Element Analysis ◽  
Metallic Additive

In this study, a data-driven deep learning model for fast and accurate prediction of temperature evolution and melting pool size of metallic additive manufacturing processes are developed. The study focuses on bulk experiments of the M4 high-speed steel material powder manufactured by Direct Energy Deposition. Under non-optimized process parameters, many deposited layers (above 30) generate large changes of microstructure through the sample depth caused by the high sensitivity of the cladding material on the thermal history. A 2D finite element analysis (FEA) of the bulk sample, validated in a previous study by experimental measurements, is able to achieve numerical data defining the temperature field evolution under different process settings. A Feed-forward neural networks (FFNN) approach is trained to reproduce the temperature fields generated from FEA. Hence, the trained FFNN is used to predict the history of the temperature fields for new process parameter sets not included in the initial dataset. Besides the input energy, nodal coordinates, and time, five additional features relating layer number, laser location, and distance from the laser to sampling point are considered to enhance prediction accuracy. The results indicate that the temperature evolution is predicted well by the FFNN with an accuracy of 99% within 12 seconds.

FEM Analysis of a Diesel Engine’s Cylinder Head

2012 ◽  
Vol 490-495 ◽  
pp. 3023-3026
Author(s):  
Shao Zhong Jiang
Keyword(s):  
Finite Element ◽  
Modal Analysis ◽  
Cylinder Head ◽  
High Speed ◽  
Structural Characteristics ◽  
Fem Analysis ◽  
Mode Shapes ◽  
Element Analysis ◽  
Frequency Distributions ◽  
And Control

The article aims at the cylinder head used in a high speed and higher-power diesel engine. In order to obtain the vibration characteristics and vibration frequency distributions. By means of modal analysis technology and finite element method (FEM), structural characteristics of the cylinder head using modal analysis is investigated. Firstly, a physical model of the cylinder head is built. Through the comparison of all the modal analysis results with different meshing densities, a tetrahedron ten-node element with length of 30mm is selected. Then finite element analysis of the model is taken by FEM software. The cylinder head’s modal parameters namely its natural frequency are calculated and its mode shapes are identified. The results can provide basis for the engine’s dynamic analysis and control of the diesel engine’s noise

Vibration Forecast and Vibration Attenuation Research of the Finished Motorcycle Based on Virtual Analysis

2014 ◽  
Vol 705 ◽  
pp. 122-125
Author(s):  
Zi Qing Meng ◽  
Ming Li
Keyword(s):  
Finite Element ◽  
Dynamic Response ◽  
High Speed ◽  
Structural Characteristics ◽  
Element Model ◽  
Analysis Model ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Vibration Attenuation ◽  
Response Equation

as the high-speed vehicle, motorcycle vibration has an important influence on driving security, comfort, and handling stability. Therefore, this article builds the finite element analysis model of vibration forecast and damping of the finished motorcycle based on the structural characteristics. The major contents include main part modeling, boundary condition, and the finite element model of the finished motorcycle. In the paper, we build the finite dynamic response equation through analyzing the dynamic response, and research the resonance from different directions that caused by the engine harmonic response. Moreover, this article provides the vibration attenuation plan of the motorcycle structural modification and proves the feasibility through the analog computation and experimental measurement.

A Study on the Application of Large Aluminum Hollow Extrusion Profiles to Ship Structures

1999 ◽  
Vol 15 (03) ◽  
pp. 179-190
Author(s):  
Seung II Seo ◽  
Kon Ho Son ◽  
Jae Hong Park
Keyword(s):  
High Speed ◽  
Plate Theory ◽  
Design Method ◽  
Structural Characteristics ◽  
High Strength ◽  
Normal Pressure ◽  
Labor Cost ◽  
Element Analysis ◽  
Plate Buckling ◽  
Structural Behaviors

Aluminum is much useful material for high speed light crafts due to high strength and light weight. Large aluminum hollow extrusion profiles have another merits such as easy production of complicated shapes, reduction of welding and cutting lines, easy fabrication, high quality and labor cost-down. In this paper, a design method for aluminum hollow extrusion profiles was developed. Detailed finite element analysis was carried out to comprehend the structural behaviors of the hollow extrusion profiles subjected to normal pressure and compression. Simple formulas were proposed to analyze structural characteristics of the hollow extrusion profiles based on orthotropic plate theory and plate buckling theory. By comparison with the detailed analysis results, it was shown that simple formulas have good accuracy and efficiency. For practical application of the proposed simple formulas, optimization for reduction of weight under strength and production constraints was carried out and useful results were obtained.

scholarly journals Finite Element Method of Nickel Chromium and Nickel Vanadium for Alternative CNC Machine Tool

2019 ◽  
Vol 9 (1) ◽  
pp. 4730-4733
Keyword(s):  
Finite Element ◽  
High Speed ◽  
Tool Material ◽  
High Speed Steel ◽  
Life Time ◽  
Machining Process ◽  
Depth Of Cut ◽  
Cnc Machine ◽  
Element Analysis ◽  
Nickel Chromium

CNC tool is generally made of high speed steel (HSS) which has shorter life due to the increasing depth of cut. The steel shank wears within a short life time by the chips produced during machining process. And even the tool material cannot withstand a large amount of load. The damaged tool material is analysed and an alternate material is used to manufacture the tool. Alternate material used to manufacture the CNC tool which would have properties superior than HSS. The objective of this paper is to analyze the temperature increase & the thermal deformation of different materials like nickel-chromium and nickel-vanadium using Finite Element Analysis.

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