Problem 2. A machine of 150 kg as shown in below figure has a rotating unbalance of 0.5kg-m and is operating at 1500 rpm. A mass is hang from the machine to absorb the machine vibration. a) Find and plot the transfer function of the SDOF system (without the absorber). b) Find and plot transfer functions of the 2DOF system (with the absorber). c) What is the appropriate k; and m; to completely absorb the vibration of the machine? d) If the machine is to have variable operating speed, without doing any specific calculations, what could be done to the absorber to operate at a desired frequency range? ki = 2.65x10° N/m k2 =? m = 150 kg mp m; =? k2 moe = 0.5kg-m m2

Problem 2. A machine of 150 kg as shown in below figure has a rotating unbalance of 0.5kg-m and is operating at 1500 rpm. A mass is hang from the machine to absorb the machine vibration. a) Find and plot the transfer function of the SDOF system (without the absorber). b) Find and plot transfer functions of the 2DOF system (with the absorber). c) What is the appropriate k; and m; to completely absorb the vibration of the machine? d) If the machine is to have variable operating speed, without doing any specific calculations, what could be done to the absorber to operate at a desired frequency range? ki = 2.65x10° N/m k2 =? m = 150 kg mp m; =? k2 moe = 0.5kg-m m2

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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