Analysis and Research on Dynamic Characteristics of Bulb Tubular Pumping Station Structure

2012 ◽  
Vol 594-597 ◽  
pp. 1917-1921
Author(s):  
Ye Xiao ◽  
Xiao Tang Ding
Keyword(s):  
Dynamic Response ◽  
Dynamic Characteristics ◽  
Mode Analysis ◽  
Response Analysis ◽  
Element Analysis ◽  
Harmonic Response ◽  
Pumping Station ◽  
Fundamental Frequencies ◽  
Harmonic Response Analysis ◽  
Station Structure

This paper was combined with the third Huaian pumping station to study the dynamic characteristics of the bulb tubular pumping station. By using dynamic finite element analysis method to create Huaian pumping station modes. Then using ANSYS Model Analysis and harmonic response analysis, the vibration modes and dynamic response were researched deeply. According to the mode analysis results, the fundamental frequencies of upper pump house were determined for 1.36Hz and the fundamental frequencies of substructure were determined for 20.11Hz. The dynamic response of the bulb tubular pumping station structure under fluctuating pressures is calculated by ANSYS harmonic response analysis, and the results show that dynamic displacement satisfied the maximum allowable of architectural construction permission，so it can satisfy design requirement, which provides references value for other tubular pumping station in anti-vibration design.

Dynamic Analysis of DVG 850 High-Speed Machining Center

2012 ◽  
Vol 487 ◽  
pp. 203-207
Author(s):  
Gong Xue Zhang ◽  
Xiao Kai Shen
Keyword(s):  
High Speed ◽  
Simulation Analysis ◽  
Response Analysis ◽  
Improved Method ◽  
Analysis Software ◽  
Element Analysis ◽  
Harmonic Response ◽  
Machining Center ◽  
Calculation Results ◽  
Harmonic Response Analysis

Purpose, with the application of workbench finite element analysis software, get the analysis results of DVG 850 high-speed vertical machining center via the modal analysis and harmonic response analysis. Use the calculation results for reference, put forward the improved method, and prove the credibility of the simulation analysis by testing DVG 850 prototype.

Dynamic Characteristic Analysis of the Horizontal Machine Center

2010 ◽  
Vol 97-101 ◽  
pp. 3671-3676
Author(s):  
Li Zhang ◽  
Liang Wei Zhong
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Response Analysis ◽  
Main Shaft ◽  
Characteristic Analysis ◽  
Element Analysis ◽  
Machine Center ◽  
Harmonic Response ◽  
Machining Force ◽  
Harmonic Response Analysis

Modal analysis of machine center was carried out by means of finite-element analysis (FEA) method to get its characteristics and to improve its machining precision. Based on this, harmonic response analysis was processed to evaluate its vibration when the cycle load caused by the machining force was applied on the main shaft of machine center, which was used to provide clues for avoiding resonance vibration and ameliorating design.

Effects of Bearing Configuration on Spindle Dynamic Characteristics

2013 ◽  
Vol 437 ◽  
pp. 76-80
Author(s):  
Guo Ping An ◽  
Bing Bing Zhang ◽  
Yong Sheng Zhao ◽  
Li Gang Cai
Keyword(s):  
Modal Analysis ◽  
Natural Frequency ◽  
Analytical Model ◽  
Dynamic Characteristics ◽  
Response Analysis ◽  
Face To Face ◽  
Harmonic Response ◽  
Radial Stiffness ◽  
Proposed Model ◽  
Harmonic Response Analysis

This article investigates the effects of bearing configuration on the spindle dynamic characteristics. First, an analytical model of spindle is proposed and the bearing sets radial stiffness is calculated. Second, the spindle analytical model is developed to perform modal analysis and harmonic response analysis with ANSYS, and then obtain the natural frequency and FRF under different bearing configurations. The result suggests that bearing configuration has little effect on the natural frequency of spindle system and the FRF amplitude corresponding to the 1st natural frequency under back to back configuration or face to face configuration is relatively small. Finally, the proposed model is validated by modal experiment.

Finite Element Analysis of Milling Head Box of CNC Machine Tool

2012 ◽  
Vol 605-607 ◽  
pp. 1519-1522
Author(s):  
Lei Sun ◽  
Xia Wang
Keyword(s):  
Finite Element ◽  
Machine Tool ◽  
Response Analysis ◽  
Optimized Design ◽  
Cnc Machine Tool ◽  
Cnc Machine ◽  
Element Analysis ◽  
Harmonic Response ◽  
Harmonic Response Analysis ◽  
Vibration Modal

The modal analysis and harmonic response analysis of milling head box were done by means of finite element method. Find out its characteristics of vibration modal. The analysis is conducive to the design of the milling head box of machine tool. It makes a base for optimized design and remanufacturing.

Finite Element Analysis of the Spindle Ram-Slider Assembly Body on the Domestic Large Gantry Machine Tool

2013 ◽  
Vol 712-715 ◽  
pp. 1487-1493
Author(s):  
Xin Yuan He ◽  
Ye Tian ◽  
Hong Wei Zhao ◽  
Cheng Li Shi ◽  
Pi Xin Liu
Keyword(s):  
Finite Element Analysis ◽  
Machine Tools ◽  
Working Environment ◽  
Response Analysis ◽  
Ansys Software ◽  
Element Analysis ◽  
Response Frequency ◽  
Harmonic Response ◽  
Harmonic Response Analysis ◽  
Gantry Machine Tool

Machine working environment was simulated by using ANSYS software for analysis and calculation. Modal analysis results indicated that machine tools didn't produce resonance during the machine working. Harmonic response analysis result shew the displacement response frequency was 42Hz along the Y, Z two directions on the bottom of ram, and X direction's response frequency was 43 Hz. The conclusion given by this paper has guiding significance to use the machine safely in the future.

The Analysis on Different Circular Saw Structures for Reducing Saw Noise

2010 ◽  
Vol 145 ◽  
pp. 551-556
Author(s):  
Xiao Ling Wang ◽  
Yong Zhang
Keyword(s):  
Noise Level ◽  
Natural Frequencies ◽  
Vibration Mode ◽  
Mode Analysis ◽  
Response Analysis ◽  
Vibration Modes ◽  
Harmonic Response ◽  
Circular Saw ◽  
Harmonic Response Analysis ◽  
Circular Saws

In this paper, we carry out dynamic theoretical and numerical simulation on several differently designed structures of circular saw. Our goal is to improve the vibration property and reduce the noise level of circular saws. We obtain natural frequencies and vibration modes of differently designed saw structures by vibration mode analysis and harmonic response analysis. From our analytical results we prove the effectiveness of these differently designed circular saw structures in reducing the vibration and the noise level.

The Finite Element Analysis of Vibrating Screen

2011 ◽  
Vol 141 ◽  
pp. 134-138
Author(s):  
Chuan Guang Ding ◽  
Fang Zhen Song ◽  
Bo Song ◽  
Xiu Hua Men
Keyword(s):  
Large Scale ◽  
Natural Frequencies ◽  
Modular Design ◽  
Mode Shapes ◽  
Response Analysis ◽  
Element Analysis ◽  
Harmonic Response ◽  
Vibrating Screen ◽  
The Finite Element Analysis ◽  
Harmonic Response Analysis

The large-scale and modular design of vibrating screen brings about the trend that the screen separate from screen frame. The separation of the screen frame and the screen changes their dynamic characteristics. By making modal analysis and harmonic response analysis in ANSYS, the dynamic data of the screen and the screen frame was obtained, such as the natural frequencies, mode shapes, stress distribution and strain distribution. The results show that the stiffness of screen frame is higher than stiffness of the screen and the side plats and beams of screen are the weak parts.

Finite Element Analysis of Machine Tool Bed

2011 ◽  
Vol 337 ◽  
pp. 713-716
Author(s):  
Lei Sun ◽  
Ming Hai Wang ◽  
Xiao Peng Li ◽  
Yue Sun
Keyword(s):  
Finite Element Method ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Machine Tool ◽  
Response Analysis ◽  
Optimized Design ◽  
Element Analysis ◽  
Harmonic Response ◽  
Harmonic Response Analysis ◽  
Vibration Modal

Taking machine tool bed as example,the modal analysis and harmonic response analysis were done by means of finite element method. Find out its characteristics of vibration modal. The analysis is conducive to the design of the machine tool bed. It makes a base for optimized design and remanufacturing.

Dynamic Analysis and Optimization of Automatic Tape-Laying (ATL) Machine for Cylinder Components

2011 ◽  
Vol 138-139 ◽  
pp. 9-14
Author(s):  
Hui Feng Zhang ◽  
Li Wen Guan ◽  
Tie Min Li
Keyword(s):  
Dynamic Characteristics ◽  
Response Analysis ◽  
Sectional Area ◽  
Static Stiffness ◽  
Cross Sectional ◽  
Fem Model ◽  
Static And Dynamic Characteristics ◽  
Harmonic Response ◽  
Harmonic Response Analysis ◽  
Improvement Scheme

The structure of an automatic tape-laying (ATL) machine for cylinder components is introduced. The FEM model is established and static stiffness, modal, harmonic response analysis are performed. The improvement scheme is given based on the above analysis result, with better static and dynamic characteristics by increasing cross-sectional area.

Design and Dynamic Analysis of Horn for Ultrasonic Polishing

2011 ◽  
Vol 121-126 ◽  
pp. 2619-2623
Author(s):  
Ming Zhao ◽  
Yi Li ◽  
Hai Tao Kao
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Design Theory ◽  
Theoretical Research ◽  
Response Analysis ◽  
Ultrasonic Machining ◽  
Element Analysis ◽  
Harmonic Response ◽  
Analysis Technique ◽  
Harmonic Response Analysis

Ultrasonic polishing is an effective method to solve the bottleneck of polishing the mold cavity in mold processing, and the performance of ultrasonic horn is of utmost importance for the ultrasonic machining. In this paper the horn applicable to automatic ultrasonic polishing equipment is designed based on horn design theory, as well modal analysis and harmonic response analysis of four types of horn are carried out using Finite Element Analysis technique, which provides the basis and reference for further theoretical research and actual processing

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