Modal Analysis of Abrasive Tool with Heat Pipe

2014 ◽  
Vol 687-691 ◽  
pp. 232-235
Author(s):  
Tao Sun ◽  
Xiao Qing Zhou ◽  
Zhuo Chen ◽  
Fang Li
Keyword(s):  
Modal Analysis ◽  
Heat Pipe ◽  
Natural Frequency ◽  
Vibrational Frequency ◽  
Model Analysis ◽  
Cutting Fluid ◽  
Resonance Phenomenon ◽  
Abrasive Tool ◽  
Ansys Software

Heat pipe has excellent conductivity of heat and diversity of structure, so it can be used in machining which can decrease or avoid using the cutting fluid. In this paper, the abrasive tool with rotating heat pipe was designed. To validate that the abrasive tool with heat pipe can safely and steadily grind materials, the model analysis of abrasive tool with heat pipe is carried on with the ANSYS software based on the theory of modal analysis, then the first five order natural frequency and vibration models are to get. The results indicated that the vibrational frequency of designed abrasive tool is far away from natural frequency, so resonance phenomenon does not happen and the abrasive tool with heat pipe can smoothly work.

Modal Analysis of Maglev Linear Feed Unit

2012 ◽  
Vol 150 ◽  
pp. 205-210 ◽  
Author(s):  
Long Xue Xiao ◽  
Guo Qing Wu ◽  
Xu Dong Zhang
Keyword(s):  
Modal Analysis ◽  
Natural Frequency ◽  
Machine Tools ◽  
Electromagnetic Levitation ◽  
Milling Machine ◽  
Ansys Software ◽  
Solid Foundation ◽  
Working Principle ◽  
Stiffness And Damping ◽  
Feed Unit

The structural and working principle of a kind of maglev linear feed unit for CNC engraving and milling machine tools are presented, and its mathematical model is analyzed, then its model of vibration is established in this paper. The modal analysis is made, the natural frequency is calculated with its vibration models, and the influence on the natural frequency of electromagnetic levitation bearing unit, which is caused by stiffness and damping coefficients of electromagnetic levitation bearing, is analyzed respectively by means of ANSYS software. The calculation and analysis presented in this paper can help us design the structure of the maglev linear feed unit for CNC engraving and milling machine tools, and can also establish a solid foundation for further etailed dynamics analysis.

The Comparative Modal Analysis of Simulation and Experiment on the Electronic Button-Sewing Machine Shell

2013 ◽  
Vol 668 ◽  
pp. 612-615
Author(s):  
Li Zhang ◽  
Guang Yuan Nie ◽  
Hong Wu ◽  
Jie Chen
Keyword(s):  
Comparative Analysis ◽  
Modal Analysis ◽  
Natural Frequency ◽  
Mode Shape ◽  
Damping Ratio ◽  
Mode Shapes ◽  
Modal Parameters ◽  
Ansys Software ◽  
Sewing Machine ◽  
Simulation And Experiment

In this paper, the simulation with ANSYS software and the experimental modal analysis by impacting are carried out on the electronic button-sewing machine shell. The modal parameters, such as the natural frequency, the damping ratio and the mode shape, are obtained. Comparative analysis of their results shows that the mode shapes of the machine shell are mainly the outward-expanding and inward-contracting vibrations, which provides a useful reference for vibration and noise reduction of the electronic button-sewing machine.

Finite Element Model Analysis on Five-Cylinder Marine Diesel’s Crankshaft Based on UG and ANSYS

2012 ◽  
Vol 538-541 ◽  
pp. 677-681
Author(s):  
Jun Luo ◽  
Jie Sun ◽  
Guang Jie Yuan
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Modal Analysis ◽  
Natural Frequency ◽  
Element Model ◽  
Model Analysis ◽  
Mode Shapes ◽  
Three Dimension ◽  
The Core ◽  
Core Components

Ship host is the heart of one ship, while the crankshaft is the core components of ship host. Created a three-dimension crankshaft’s modal through UG, then use FEM software ANSYS to simplified the characteristics details and constraints. Take the modal analysis of the crankshaft in order to gain the natural frequency and mode shapes).

The Seismic Research of Connection with Haunch Frame

2013 ◽  
Vol 671-674 ◽  
pp. 1471-1474
Author(s):  
Li Yun Jiang ◽  
Xu Dong Sun
Keyword(s):  
Modal Analysis ◽  
Natural Frequency ◽  
Steel Structure ◽  
Model Analysis ◽  
Steel Frame ◽  
Response Analysis ◽  
Vibration Modes ◽  
Harmonic Response ◽  
Harmonic Response Analysis ◽  
Train Of Thought

In some accidents of earthquake, the steel frame was brittle damaged. The problem lied in the hinge part of the structure—beam-to-column connection. This made some academicians point out connection with haunch. In this article, the modal analysis and harmonic response analysis of frame are made at the basis of connection with haunch by using ANSYS. Through the model analysis, the natural frequency and relative vibration modes of the structure are gotten, which can help us prevent the frame from resonance, the harmonic response analysis is made based on the model analysis, the curve between the frequency and the deformation of each layer is drawn, from which we can also know the peak. The method used in the article can provide a train of thought about how to deal with complexly giant steel structure, and also lay the foundation for further research.

Structural Analysis and Heat Transfer Performance Test of Abrasive Tool with Heat Pipe

2014 ◽  
Vol 644-650 ◽  
pp. 337-340
Author(s):  
Tao Sun ◽  
Fang Li ◽  
Xiao Qing Zhou ◽  
Fei Ma
Keyword(s):  
Heat Transfer ◽  
Finite Element ◽  
Structural Analysis ◽  
Heat Pipe ◽  
Static Analysis ◽  
Performance Test ◽  
Heat Transfer Performance ◽  
Cutting Fluid ◽  
Transfer Performance ◽  
Abrasive Tool

Heat pipe has excellent conductivity of heat and diversity of structure, so it can be used in machining which can decrease or avoid using the cutting fluid. In this paper, the abrasive tool with rotating heat pipe was designed. To validate that the abrasive tool with heat pipe can safely and steadily grind materials, the structure of abrasive tool was finite element analyzed which included static analysis. Furthermore, the heat transfer performance of heat pipe was tested. The results indicated that heat pipe has certain cooling impacts relative to no heat pipe in machining.

Modal Analysis for Vertically Cutting the Motor Frame Based on ANSYS Software

2014 ◽  
Vol 703 ◽  
pp. 224-227
Author(s):  
Xin Rong Wang ◽  
Yan Yu Zhou ◽  
Ya Zhou Zhao ◽  
Ping Wang
Keyword(s):  
Finite Element ◽  
Modal Analysis ◽  
Natural Frequency ◽  
Centrifugal Force ◽  
Dynamic Modeling ◽  
Machining Process ◽  
Vibration Modes ◽  
Ansys Software ◽  
Study Results ◽  
Design For Machining

The dynamic modeling method with finite element for the motor frame was introduced by using ANSYS software to analyze the frame modal. Natural frequency characteristics and the vibration modes of frame under the action of centrifugal force during vertical machining process were discussed, and effects on the result of modal analysis coming from rotating centrifugal force at different velocity were analyzed. These study results are helpful for guidance of the key process and equipment design for machining the motor frame.

Dynamics Analysis of Refrigeration Compressor Based on Finite Element and Experimental Modes

2012 ◽  
Vol 499 ◽  
pp. 238-242
Author(s):  
Li Zhang ◽  
Hong Wu ◽  
Yan Jue Gong ◽  
Shuo Zhang
Keyword(s):  
Finite Element ◽  
Dynamic Response ◽  
Modal Analysis ◽  
Natural Frequency ◽  
High Precision ◽  
3D Model ◽  
Finite Element Models ◽  
Dynamics Analysis ◽  
Response Characteristics ◽  
Dynamic Response Characteristics

Based on the 3D model of refrigeration's compressor by Pro/E software, the analyses of theoretical and experimental mode are carried out in this paper. The results show that the finite element models of compressor have high precision dynamic response characteristics and the natural frequency of the compressor, based on experimental modal analysis, can be accurately obtained, which will contribute to further dynamic designs of mechanical structures.

scholarly journals Modal analysis of an iced offshore composite wind turbine blade

2021 ◽  
pp. 0309524X2110116
Author(s):  
Oumnia Lagdani ◽  
Mostapha Tarfaoui ◽  
Mourad Nachtane ◽  
Mourad Trihi ◽  
Houda Laaouidi
Keyword(s):  
Wind Turbine ◽  
Modal Analysis ◽  
Turbine Blade ◽  
Natural Frequencies ◽  
Wind Turbine Blade ◽  
Resonance Phenomenon ◽  
Mode Shapes ◽  
The Finite Element Method ◽  
Numerical Work ◽  
Composite Blades

In the far north, low temperatures and atmospheric icing are a major danger for the safe operation of wind turbines. It can cause several problems in fatigue loads, the balance of the rotor and aerodynamics. With the aim of improving the rigidity of the wind turbine blade, composite materials are currently being used. A numerical work aims to evaluate the effect of ice on composite blades and to determine the most adequate material under icing conditions. Different ice thicknesses are considered in the lower part of the blade. In this paper, modal analysis is performed to obtain the natural frequencies and corresponding mode shapes of the structure. This analysis is elaborated using the finite element method (FEM) computer program through ABAQUS software. The results have laid that the natural frequencies of the blade varied according to the material and thickness of ice and that there is no resonance phenomenon.

scholarly journals Unbalanced Vibration Identification of Tangential Threshing Cylinder Induced by Rice Threshing Process

2018 ◽  
Vol 2018 ◽  
pp. 1-14 ◽  
Author(s):  
Zhong Tang ◽  
Haotian Zhang ◽  
Yuepeng Zhou
Keyword(s):  
Service Life ◽  
Vibration Amplitude ◽  
Rotation Speed ◽  
Resonance Phenomenon ◽  
Test Results ◽  
Axial Vibration ◽  
Ansys Software ◽  
Cylinder Axis ◽  
Vibration State ◽  
Rice Stalks

Unbalanced vibration of tangential threshing cylinder increased the grain loss, shortened service life of the cylinder, and resulted in structural resonance during the rice threshing process. In this paper, the vibration amplitude and frequency of tangential threshing cylinder shaft were tested, and the vibration state of tangential threshing cylinder was identified. The restricted and working modalities of tangential threshing cylinder were solved by ANSYS software. Then, by comparing the resonance phenomenon between the inherent constraint frequency and the rotation speed frequency, the shaft vibration under the idle condition of tangential threshing cylinder was tested and analyzed. According to the axial vibration and axial trajectory of the cylinder, the inherent properties and characteristics of unbalanced vibration were revealed. Test results showed that when the tangential threshing cylinder was at idling and no-load state, the amplitude of vibration in the feed direction of straw flow was -0.049~0.060 mm, and the average vibration amplitude was 0.013 mm. As rice flowed along the tangential threshing cylinder, the vibration amplitude slightly increased. The trend and phase of each trajectory were similar, although the amplitude of each trajectory was different. The tangential threshing cylinder axis trajectory was flat oval. Unbalanced vibration was induced by the rice stalks in the concave gap.

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