کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
785716 1465358 2011 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The force transmissibility of MDOF structures with a non-linear viscous damping device
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
The force transmissibility of MDOF structures with a non-linear viscous damping device
چکیده انگلیسی

In the present study, the concept of the Output Frequency Response Function (OFRF), recently proposed by the authors, is applied to theoretically investigate the force transmissibility of MDOF structures with a cubic non-linear viscous damping device. The results analytically show that the introduction of cubic non-linear damping can significantly reduce the transmissibility over all resonance regions for a Multiple Degree of Freedom (MDOF) structure and at the same time leave the transmissibility over the isolation region virtually unaffected. The analysis also indicates that a strong linear damping may shift the system resonances and compromise the beneficial effects of cubic non-linear viscous damping on the force transmissibility of MDOF structures. This suggests that a less significant linear damping together with a strong cubic non-linear damping can be used in MDOF structures to achieve a desired vibration isolation performance. This research work has a significant implication for the design of viscously damped MDOF structures for a wide range of practical applications.


► We theoretically investigate the force transmissibility of MDOF structures with a cubic nonlinear viscous damping device.
► Cubic nonlinear damping can significantly reduce the transmissibility over all resonance regions for MDOF structures.
► Cubic nonlinear damping has almost no effect on the transmissibility over the isolation regions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Non-Linear Mechanics - Volume 46, Issue 10, December 2011, Pages 1305–1314
نویسندگان
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