7) In one device, the disc is held in place by a torsion spring and an adhesive damper. Mass inertia torque, J of this disk is equal to 7.2 * 10-6 kg.m² . The vibration period of this disk is 4.2 seconds and the damping ratio of this system is 0.5399. Find: A) A)Natural frequency B) Spring stiffness and damping of the adhesive damper

7) In one device, the disc is held in place by a torsion spring and an adhesive damper. Mass inertia torque, J of this disk is equal to 7.2 * 10-6 kg.m² . The vibration period of this disk is 4.2 seconds and the damping ratio of this system is 0.5399. Find: A) A)Natural frequency B) Spring stiffness and damping of the adhesive damper

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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Layout

The layout is a way of organizing the elements, products, and raw materials in a design. The layout is the representation of information in a structural, logical, descriptive, coherent form.The layout is a mapping of various equipment arrangements, workstations, machinery, plants, and more. It secures the continuous movement of a product quantity along with the quality.

Question

7) just solve A-B

Please answer in legible and orderly handwriting. If it is not legible, I will not give a positive rating.

7) In one device, the disc is held in place by a torsion spring and an adhesive
damper. Mass inertia torque, J of this disk is equal to 7.2 * 10-6 kg.m² . The
vibration period of this disk is 4.2 seconds and the damping ratio of this
system is 0.5399. Find:
A) A)Natural frequency
B) Spring stiffness and damping of the adhesive damper
* If the system is assumed to be upright and can respond to a sudden
shock by rotating the disc by 25 degrees, it is desirable:
i)
Time required to reach 25 degrees of rotation
ii)
The initial velocity generated by the sudden vibration

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