Benefit of Elastically Mounted Linear Damping Vibration Isolation for Transportation System
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Abstract
Aim of the research is to investigate benefit of supporting the damping element elastically. A single degree of freedom base excited vibration isolation system is focused for this study. Such the isolation system can be found in transportation system which its base is exciting. The improved vibration isolation system can help in reducing the damages caused from vibration to the transporting products. The proposed model has a damping element supported elastically by a spring. The damping force characteristic is assumed to be linear function of relative velocity across the damper. Two values of linear damping ratios were employed for investigation. The frequency response obtained from mathematical and numerical examinations are compared to experimental results. The frequency responses for the system with the relaxation spring are also compared to that with rigidly connected damper. Supporting the damping element elastically is found to reduce the vibration level for the high excitation frequencies in around 10 frequency decade from the natural frequency. The stiffness of supporting spring plays the important role in lowering the vibration level. Thus, it can be concluded that the vibration level of the products being transported can be reduced by supporting the damping element elastically.
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References
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