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a Between a solid mass of 1P kg and floor, two slab of isolator, natural rubber and felt are kept in series as shown in
Posted: Fri Apr 29, 2022 10:07 am
by answerhappygod
- A Between A Solid Mass Of 1p Kg And Floor Two Slab Of Isolator Natural Rubber And Felt Are Kept In Series As Shown In 1 (48.59 KiB) Viewed 34 times
- A Between A Solid Mass Of 1p Kg And Floor Two Slab Of Isolator Natural Rubber And Felt Are Kept In Series As Shown In 2 (47.91 KiB) Viewed 34 times
a Between a solid mass of 1P kg and floor, two slab of isolator, natural rubber and felt are kept in series as shown in Figure Q1(b). The natural rubber slab has a stiffness of 3000 N/m and an equivalent viscous damping coefficient of 11R Ns/m. The felt slab has a stiffness of 12.800 N/m and an equivalent viscous damping coefficient of ITO Ns/m. (i) Sketch the single degree of freedom spring-mass-damper system (2 marks) (ii) Determine the undamped and damped natural frequencies of the system in the vertical direction. Neglect the mass of the isolator (12 marks)
m=1P kg rubber Figure Q1(b)