Design research and simulation on axial thrust roller-exciting vibration table

WU Shang-sheng;HUANG Ze-xing;LU Zhen-wei;ZHOU Yun-qi

Journal of Vibration and Shock ›› 2014, Vol. 33 ›› Issue (2) : 64-68.

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PDF(2099 KB)
Journal of Vibration and Shock ›› 2014, Vol. 33 ›› Issue (2) : 64-68.
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Design research and simulation on axial thrust roller-exciting vibration table

  • WU Shang-sheng1,HUANG Ze-xing1,LU Zhen-wei1,ZHOU Yun-qi2
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Abstract

A new type of mechanical vibration table was put forward. Mathematical equations of the vibration elements curved surface were built up by analyzing the structure and the working principle of the mechanical vibration table. Through establishing dynamics equations of the vibration mechanism, functional relationships between the amount of spring preload and critical frequencies were obtained. A 3D model of the vibration table was created and motion simulation experiments were carried out on this basis. Then, the acceleration waveform distortions were obtained by analyzing the frequency spectrums and power spectrums of the output waveforms. Meanwhile, the relationships between the amount of spring preload and critical frequencies were verified. The test results show that the precision of the vibration table output waveforms and the upper limiting frequencies are higher than traditional mechanical vibration tables. Thus this kind of exciting method is proved to be feasible and effective.



Key words

vibration table / axial thrust / roller-exciting / distortion / upper limiting frequency

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WU Shang-sheng;HUANG Ze-xing;LU Zhen-wei;ZHOU Yun-qi. Design research and simulation on axial thrust roller-exciting vibration table[J]. Journal of Vibration and Shock, 2014, 33(2): 64-68
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