QUESTION Based on a nominal no-load speed for the DC motor of 5050 RPM at 12VDC,

Question

QUESTION Based on a nominal no-load speed for the DC motor of 5050 RPM at 12VDC, match each input voltage to its corresponding vibration frequency. A. f = 42.08 Hz B. f = 70.14 Hz C. f- 84.17Hz D.f 28.06 Hz in-12v · - QUESTION 2 Assuming a damping ratio of 0.08, calculate the theoretical transmissibility ratio for f = 14 Hz. Round your answer to two decimal places. (assume f_n 7.24Hz) QUESTION 3 If the accelerometer in this experiment outputs a voltage of 1.13 V in the y-direction, what is the value of the acceleration (in SI units) experienced by the accelerometer in the y-direction? QUESTION 4 Based on the vibration isolator datasheet (which can be found online), calculate theoretical natural frequency of the motor plate mounted on four isolators. Round your answer to two decimal places. Your answer should be in units of Hz.

Explanation / Answer

1) As vibration frequency is inversely proportional (non linear) to input voltage.

So, as Vin increases Vibration frequecy decreases.

V_in = 4V - C. 84.17Hz

V_in = 6V - B. 70.14Hz

V_in = 10V - A. 42.08Hz

V_in = 12V - D. 28.06Hz

One question at a time please.

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