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The Dynamic Characteristic Analysis and Numerical Simulation of 3-Dimension Flow Fieled for Different-Speed Mixer

Author: XuAnJun
Tutor: FanZhiMin
School: Qingdao University of Science and Technology
Course: Mechanical Design and Theory
Keywords: Differential mixing kneader Parameter optimization Transient dynamic Vibration Fatigue Flow field
CLC: TQ051.7
Type: Master's thesis
Year: 2009
Downloads: 100
Quote: 0
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Abstract


Differential mixing kneading machine is a new and efficient horizontal biaxial all phases of self-cleaning mixing kneading equipment . It combines crushing, mixing , kneading self-cleaning conveyor in one , and continuous production operations , a good solution to the problems faced by the high viscosity material mixing . With the mixer toward the high-power , and the development of large capacity , stability demonstrated during operation is not running , the stirring efficiency is low and fatigue damage characteristics are restricting the the differential speed kneader was stirred application . In this paper, the parameter optimization of mixer , power and fatigue characteristics and flow field characteristics of a series of research and exploration : 1. Differential mixing the structural characteristics and working principle of the kneading machine , refer to the stirring shaft spiral edge shape of the mathematical model , spiro rim shape is simplified , the spiral ridge shape design to meet the mixture was stirred and easy processing . In order to improve to differential speed kneader was stirred into the mixing performance spiro rib helix angle of the stirring device, the aspect ratio of the main shaft and the center of the cleaning shaft Sandy and other aspects of the agitator shaft parameter optimization . (3) using the finite element software ANSYS transient dynamic analysis of the stirring shaft , stirring shaft in the the cyclical flow field FORCE risk node displacement and stress time history response and transient power the analysis of the results has been optimized stirring shaft screw angularity . 4 main stirring shaft and the cleaning shaft vibration characteristics in theory, research and using the finite element method, modal analysis , natural frequency and mode shapes , and verify that the stirring shaft at normal speed process no resonance occurs . Use theoretical calculation method and finite element method stirring shaft fatigue analysis , and the results were compared and analyzed to verify the structural optimization of the stirring shaft to meet the requirements of the fatigue strength . 6 mixer numerical simulation of three-dimensional flow field , to get the real liquidity position of the material in the flow field , and the stirring shaft design targeted recommendations for the analysis of the results .

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CLC: > Industrial Technology > Chemical Industry > General issues > Chemical machinery and apparatus, equipment > Chemical process machinery and equipment > Mixing and stirring machines
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