Question: When a certain motor is started, it is noticed that its supporting frame begins to resonate when the motor speed passes through 900 rpm. At

When a certain motor is started, it is noticed that its supporting frame begins to resonate when the motor speed passes through 900 rpm. At the operating speed of 1750 rpm the support oscillates with an amplitude of 8 mm. Determine the amplitude that would result at 1750 rpm if the support were replaced with one having one-half the stiffness.

Step by Step Solution

★★★★★

3.41 Rating (176 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

We are given that the natural frequency is n1 900 rpm Thus at 1750 rpm r 1 ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

755-C-D-S-D (727).docx

120 KBs Word File

Students Have Also Explored These Related Classical Dynamics Of Particles Questions!

The operating speed range of a certain motor is from 1500 to 3000 rpm. The motor and its mount vibrate excessively at 2100 rpm. When a vibration absorber weighing 5 lb and tuned to 2100 rpm was...

A 0.075-kg toy airplane is tied to the ceiling with a string. When the airplane's motor is started, it moves with a constant speed of 4.47 m/s in a horizontal circle of radius 1.28 m, as illustrated...

A certain dc motor has the following parameter values: L = 2 10-3 HR = 0.6 KT = 0.04 N m/Ac = 0 I = 6 10-5 kg m2 Figure P11.61 Figure P11.61 shows an integral controller using state-variable...

You are an Audit Manager at a firm called Clarke Auditors. You have been assigned to the audit of Dona ( Pty ) Ltd ( Dona ) . You are currently finalising the February 2 0 2 3 audit. Background...

You are an Audit Manager at a firm called Clarke Auditors. You have been assigned to the audit of Dona ( Pty ) Ltd ( " Dona " ) . You are currently finalising the February 2 0 2 3 audit. Background...

You are an Audit Manager at a firm called Clarke Auditors. You have been assigned to the audit of Dona ( Pty ) Ltd ( Dona ) . You are currently finalising the February 2 0 2 3 audit. Background...

The torque constant of a motor is the ratio of torque to current and is often given in ounce-inches per ampere. (Ounce-inches have dimension force distance, where an ounce is 1/16 of a pound.) The...

Your supervising attorney has given you the file of a new client who was recently named as a defendant in a lawsuit for personal injury damages. You learn that the client, Linda Granger, owns a...

You are an Audit Manager at an audit firm called Davies Auditors. You have been working at this firm for more than ten years. You are currently busy finalising the audit of Prime Foods Ltd ( " Prime...

QUESTION 5 A . Using eirher words or an equation, state the Principle of Conservation of Energy B . Construction is going on all the time at Stockton. During this construction a big stone of mass 2 0...

On February 17, 2013, a public accountant completed the examination of the financial statements for Buckheizer Corporation for the year ended December 31, 2013. The audit is satisfactory in all...

Air is compressed by an adiabatic compressor from 95 kPa and 27C to 600 kPa and 277C. Assuming variable specific heats and neglecting the changes in kinetic and potential energies, determine (a) The...

Solve with explanation and accounting question Azure Consulting prepaid $45,000 for a 5-year professional liability insurance policy on March 1. How much will be recorded as prepaid insurance at the...

Serious errors were found in the product during a test cycle in a software development project. Management is worried because the project CPI is 0.8 and the SPI is 0.75. Additionally, the project is...

The blade divides the jet of water having a diameter of 3 in. If one-fourth of the water flows downward while the other three-fourths flows upwards, and the total flow is Q = 0.5 ft3/s, determine the...

The fan draws air through a vent with a speed of 12 ft/s. If the corss-sectional area of the vent is 2 ft2, determine the horizontal thrust on the blade. The specific weight of the air is The...

The buckets on the Pelton wheel are subjected to a 2-in-diameter just of water, which has a velocity of 150 ft/s. If each bucket is traveling at 95 ft/s when the water strikes it, determine the power...

PRICE SHARES Company A B C A B C Day 1 $12 $24 $54 450 380 220 Day 2 11 21 55 450 380 220 Day 3 14 48 60 450 190a 220 Day 4 11 46 29 450 190 440b Day 5 12 46 30 450 190 440 aSplit at close of day 2....

1. Say we have a simple linear regression with a single response Y and a single quantitative covariate X. The population model is: Y; = 60 + 61X\"; + 53-. An observation of X, say X,, is considered...

The following table presents the long-term liabilities and stockholders equity of Information Control Corp. one year ago: Long-term debt $ 66,200,000 Preferred stock 4,120,000 Common stock ($1 par...