Q4. An air-conditioning chiller unit weighing 5.0kg is to be supported by four air springs. Design the air springs such that the natural frequency of vibration of the unit liesbetween 5 rad/s and 10 rad/s.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Q4. An air-conditioning chiller unit weighing 5.0kg is to be
supported by four air springs. Design the air springs such that the
natural frequency of vibration of the unit liesbetween 5 rad/s and
10 rad/s.
Q5. A heavy machine weighing 9.81kN is being lowered vertically
down by a winch at a uniform velocity of 2 m/s. The steel cable
supporting the machine has a diameter of 0.01 m. The winch is
suddenly stopped when the steel cable's length is 20 m. Find the
period and amplitude of the ensuing vibration of the machine when
Young's Modulus of steel cable is 2.07*10¹1 N/m².
Transcribed Image Text:Q4. An air-conditioning chiller unit weighing 5.0kg is to be supported by four air springs. Design the air springs such that the natural frequency of vibration of the unit liesbetween 5 rad/s and 10 rad/s. Q5. A heavy machine weighing 9.81kN is being lowered vertically down by a winch at a uniform velocity of 2 m/s. The steel cable supporting the machine has a diameter of 0.01 m. The winch is suddenly stopped when the steel cable's length is 20 m. Find the period and amplitude of the ensuing vibration of the machine when Young's Modulus of steel cable is 2.07*10¹1 N/m².
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