A study of the effect of inertia blocks on the stability of the vibratory system and the performance of vibration isolation |
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| Institution: | 1. CEREM/iMMC/UCL, Place du Levant 2, bte L5.04.02, B-1348 Louvain-La-Neuve, Belgium;2. EST, USMBA, BP 2427, Morocco;1. School of Aeronautics, Northwestern Polytechnical University, Xi''an 710072, China;2. The Peac Institute of Multiscale Sciences, Chengdu 610064, China;1. Department of Chemistry, Faculty of Resource Science and Technology, UNIMAS, Sarawak, Malaysia;2. Department of Chemistry, Gandhi Faiz-e-Aam College (Affiliated to M. J. P. Rohilkhand University), Shahjahanpur, India;3. Chemistry Department, Faculty of Science, University of Jeddah, Jeddah, Saudi Arabia;4. Chemistry Department, Faculty of Science, Alexandria University, Ibrahimia, Alexandria, Egypt;5. School of Chemical Sciences, Universiti Sains Malaysia, Pulau Pinang, Malaysia |
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| Abstract: | Resilient vibration isolators and inertia blocks are commonly used by building services engineers to isolate vibratory machines in buildings. They are selected in practice according to the force transmissibility method and some crude methods or the experience of building services engineers. These methods, however, can produce inaccurate predictions, and a power transmissibility method has recently been proposed to assess the performance of vibration isolation. In this paper, normalized average vibration velocities and overall rotational velocities are proposed to study the stability of the vibratory system. The result shows that the use of an inertia block primarily does not improve the performance of vibration isolation, but does increase the stability of the vibratory system regardless of whether the machine is of even or uneven mass distribution and whether it is driven by the vibratory force or the rocking moment. |
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