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analysis代寫 - Advanced structural analysis

Second simulation project description A new lab device is planned to be installed in an office on the same floor slab that a reciprocating engine works. The lab device is very sensitive to vibration and could generate wrong outputs if displacement at the device sensor reaches to a threshold. You are assigned to study effect of vibration produced by the engine on the new device. Engine specifications. Mass: 3000 kg. Frequency of vibration: 0.5 to 10 Hz. The engine applies cyclic vertical force on the slab. Device specification: Device could be structurally modelled as in below figure in which m = 44 kg, I = 12.5 x 106 mm4 , A = 2400 mm2 , L = 1.3 m, mass per unit length = 19.5 kg/m. I, A 5 I, 2 A Floor slab Floor plan is shown below. Slab thickness is 400 mm. Consider column connection to foundation as fixed. 3I, 2A I, A m L 1.2L L Make reasonable assumptions if needed. Deliverables: Use SAP2000 and a- Consider three damping ratios in the device and draw diagrams for max displacement response of the lump mass (m = 44 kg) in the device versus engine frequency. Draw three diagrams in one single plot. b- Consider three options of increase in slab thickness underneath the engine and draw diagrams for max displacement response of the lump mass (m = 44 kg) in the device versus engine frequency. Draw three diagrams in one single plot. c- Submit your results i.e. two sets of diagrams (two plots) as described above along with your SAP2000 model through the link for this assignment in Learn Line. Tip: watch this video: http://www.youtube.com/watch?v=VjkqA4_hlMk.

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