IIAE CONFERENCE SYSTEM, The 5th IIAE International Conference on Industrial Application Engineering 2017 (ICIAE2017)

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Study on the Modal Analysis Method of Two Screw Pump Rotor
Zhang Fan, Zhu Jun, Wu Gaojie, Sun Yajing

Last modified: 2017-03-21


In order to avoid the occurrence of the resonance of the twin screw pump under the periodic change of the fluid, the mechanical performance of the twin screw pump is optimized. To simplify the screw rotor, the vibration mechanical model that the screw rotor, using theoretical methods to solve the first order natural frequency is 525.9835Hz, then using Ansys software to carry out modal analysis under different constraint conditions on the screw rotor, the modal that the screw rotor, the finite element modal analysis of the screw rotor in spring damping under constraint the 526.4Hz theory and the results of software calculation error of only 0.08%, prove the accuracy of the finite element modal damping spring constraint model of screw rotor modal calculation, the results can provide a basis for optimization of mechanical properties of double screw pump.


twin screw pump; constraint; modal analysis; ANSYS Workbench

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