![]() From this result, it shows that neoprene is suitable to be used as the coupling (spring) material since it has lower natural frequency value compared to sorbothone, besides the second natural frequency of sorbothone material is near to the forcing frequency 140 rad/s, thus could amplified the vibration due to resonance. By contrast, sorbothone material shows slightly higher for both first and second natural frequencies compared to neoprene, which were 57.9 rad/s and 141.0 rad/s respectively. For neoprene material, the first natural frequency obtained was 44.2 rad/s and the second natural frequency is 107.7 rad/s. In this case, the stackable washing and dryer machine together with the isolator pads were simplified into two degree of freedom system, where the first and the second natural frequencies for each material of isolator pad were determined by using matrix iteration method, in which later were validated by a modern tool such as Matlab. ![]() In this study, two types of isolator pad materials neoprene and sorbothone were analyzed in order to be used for stackable washing and dryer machine. It is the process of isolating objects such as equipment from harmful vibration sources. N/A indicates that the load is too great, whereas >100 Hz indicates that a better option is available (i.e., to isolate a frequency of 150 Hz, an isolator size that is effective from 50 Hz and up is a better choice than one that is effective from 100 Hz and up).Isolator pads which also called as vibration pads are used in many applications to isolate vibration, extend machine life, reduce maintenance costs and reduce excessive wear. Orange cells indicate areas where the specific isolator size and load should not be used. Within each table are minimum frequency values, meaning that at a specific size and load the isolator will effectively damp any frequency equal to or greater than what is given. The tables below show the different sizes that a Sorbothane sheet should be cut down to for isolating certain frequencies. Learn more about the benefits and features of Eaton's vibration isolation pads and find the right model for your application. For a 13.5 lb (6.1 kg) load, a 0.5" (12.7 mm) thick sheet cut into 1.5" x 0.5" (38.1 mm x 12.7 mm) pieces would provide a good isolation solution. Are you looking for vibration isolation pads to reduce shock and noise in your equipment Eaton offers a range of neoprene pads that can handle different load capacities and speeds. ![]() If a sorbothane sheet is preferred, it would need to be cut to an appropriate size as shown in the Sheet Cutting Guide tab. Our AV5 Ø38.1 mm isolator feet will have worse isolation performance at lower frequencies, but are well within the load range which may be preferable. The AV4 Ø27 mm isolator feet provide better isolation performance at lower frequencies but are near the load limit, so if the total load were higher than anticipated the isolator would be outside of the recommended load capacity. Without a known problem frequency, the isolator that effectively isolates at the lowest cut-on frequency is recommended.įor this example, the AV4(/M) or AV5(/M) sorbothane feet would both be acceptable solutions. Sorbothane feet with a calculated load per isolator that exceeds the maximum load are not suitable for the application. This value should then be looked up on each isolation graph for the round isolator feet below. Based on the values given above, the calculated load per isolator is 13.5 lbs.
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