کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
792423 902129 2011 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental study on vibrations of a nonwoven fabric cylindrical filter
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Experimental study on vibrations of a nonwoven fabric cylindrical filter
چکیده انگلیسی

Unexpected vibrations on a cylindrical filter made of nonwoven fabrics were clarified experimentally. Two types of filter with length L=1.8 m and 3.7 m, both 45 cm in diameter and 1.08 mm in thickness, were used. This is a new type of aeroelastic vibration phenomenon because the filter is a closed cylindrical vessel. In addition, the flow velocity of inner air was very slow and inner air flowed out slowly from the filter surface. The velocity distribution of air flow from a fan duct as well as the frequency and amplitude of the filter vibration were measured for two types of filter. By setting up a roll core panel at the outlet of the fan duct, we could rectify the outflow and suppressed the vibration of the shorter filter with L=1.8 m. However, this method was not adequate for the longer filter with L=3.7 m, and we could suppress the vibration by shielding the inner surface of the filter at the top region.


► New type of aeroelastic vibration, which occurs in a closed cylindrical vessel.
► Air, which flows into a filter flows out from the surface of nonwoven fabric filter.
► Velocity distributions of air flow from a fan duct were measured precisely.
► Countermeasures for vibration suppression were proposed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Fluids and Structures - Volume 27, Issue 8, November 2011, Pages 1392–1410
نویسندگان
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