User Account

All Pages

The armature of a variable-speed electric motor

Assignment Help Mechanical Engineering
Reference no: EM131149895

The armature of a variable-speed electric motor, of mass 200 kg, has an unbalance due to manufacturing errors. The motor is mounted on an isolator having a stiffness of 10 kN/m and a dashpot having a damping ratio of 0.15.

(a) Find the speed range over which the amplitude of the fluctuating force transmitted to the foundation will be larger than the exciting force.

(b) Find the speed range over which the transmitted force amplitude will be less than 10 percent of the exciting force amplitude.

Reference no: EM131149895

Questions Cloud

Write answers of law questions : Paul was hurt in a car accident involving a vehicle driven by Dick. Paul brought a federal diversity suit against Dick on a negligence theory.- Should the court grant Paul's motion to compel production of the notes?
Design a suitable isolator for the fan : An exhaust fan, having a small unbalance, weights 800 N and operates at a speed of 600 rpm. It is desired to limit the response to a transmissibility of 2.5 as the fan passes through resonance during start-up. In addition, an isolation of 90 perce..
Create website for fashion designer who wants a unique page : There are many creative uses for tables. Imagine that you have been hired to create a Website for a fashion designer who wants a unique page that stands out. Describe how you could use tables to meet this goal.
Examine the role of management as it relates to finance : Examine the role of management as it relates to finance in a corporation. In your post, discuss the role of management by addressing the following prompts: Explain the various aspects of finance that management must understand
The armature of a variable-speed electric motor : Find the speed range over which the amplitude of the fluctuating force transmitted to the foundation will be larger than the exciting force
Find the minimum static deflection of an isolator : A dishwashing machine weighing 150 lb operates at 300 rpm. Find the minimum static deflection of an isolator that provides 60 percent isolation. Assume that the damping in the isolator is negligible.
What organizational change resulted from pressure for change : What was the internal or external pressure that caused the change? Compare the driving force for the change to the specific types of pressures noted in your reading assignments. What organizational changes resulted from the pressure for change
Prepare the project proposal for a project : Prepare the project proposal for a project of sufficient complexity and value that you are familiar with to highlight the costing approach.
Find a suitable viscously damped isolator : the amplitude during start-up conditions should not exceed 20 mm; and (d) the force transmitted to the foundation should be less than 10,000 N.

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  A first-order system with a time constant equal to 10 ms is

a first-order system with a time constant equal to 10 ms is subjected to a sinusoidal forcing with an input amplitude

  The mix leaves the chamber at 200kpa and 70 dgree clecius

water at 200 kpa and 10 degree celcius enters a mixing chamber at a rate of 150 kgmin where it is mixed steadily with

  How do you estimate the true strain at the tensile

how do you estimate the true strain at the tensile strength condition given only a simple stress-strain curve of a

  Pictorial view autocad figure 2 gives a pictorial view of a

figure 2 gives a pictorial view of a slotted guide. draw the following views in third angle ltbrgtprojection. ltbrgta a

  How far up the ramp will the spring send the crate

A crate of mass 10kg is placed on a ramp elevated at 30 degrees from the horizontal. The ramp is 2m long. The coefficient of static friction is .4 and coefficient of kinetic friction is .3. At the low end of the ramp and oriented parallel to it is a ..

  What should be the total cross sectional area of the air

the bugatti veyron is the fastest street-legal production car in the world with a top-speed of 431 kmh at such high

  Determine a the thermal efficiency of the cycle b the mass

consider a steam power plant that operates on a simple ideal rankine cycle and has a net power output of 45 mw. steam

  The main purpose of this heat exchanger is to prevent

a walk-in cooler using a vapor compression refrigeration cycle is configured as shown below. the cycle uses cfc22 or

  Calculate the number of one-liter gas cylinders required to

calculate the number of one-liter gas cylinders required to store 1.0 kg of ethylene gas at room temperature. the gas

  What rms velocity will the drill have

What natural frequency must a hand drill have if its vibration must be limited to a minimum rms displacement of 10 μm and rms acceleration of 0.1 m/s2 ? What rms velocity will the drill have?

  The coefficient of static friction between the package and

the 50-lb package starts from rest slides down the smooth ramp and is stopped by the spring. the coefficient of static

  Calculate the diameter away from the reduced section

Suppose that an investigator had not known that the bar initially had a reduced section and had assumed that the bar had a uniform initial diameter of 1.00 cm. Suppose that she measured the diameter away from the neck and had used that to calculat..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd