Dynamic torsional modeling and analysis of a fluid mixer

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Title: Dynamic torsional modeling and analysis of a fluid mixer
Author: Berg, Joel
Abstract: Mixers and agitators are used in a variety of processing industries. Each application has its own uniqueness requiring a high degree of customization in process design and mechanical design. Many of the processing and mechanical performance characteristics of mixers are derived from torque cell and tachometer measurements usually located between the motor and speed reducer. This thesis deals with the development of a dynamic modeling and analysis procedure to simulate the torsional response of mixers. This procedure will allow for the characterization of the torsional response at any point within the system, as well as relate the response as observed at the measurement location on full scale tests to any point of interest within the system. Various modeling options were developed for each of the mixing subsystems and compared to determine which configurations more accurately describe the system torsional dynamics. The developed modeling options were simulated using Simulink and MATLAB. For torsional frequency verification of the simulation model, a finite element model was constructed, analyzed, and compared to the simulation model. Also, the results of a full scale test were obtained and compared to the simulation model. Recommendations for usage, further study, and model development are also discussed.
Record URI: http://hdl.handle.net/1850/14493
Date: 2001-08

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