Interested to Buy Any Domain ? << Click Here >> for more details...
Why rotating machines are not allowed to run near critical
speed region?
- 2 Answers
- 6476 Views
- I also Faced
- E-Mail Answers
Answer Posted / iamdon
The rotor is a structure having mass and elasticity.So it
will vibrate with a natural fcrequency which is balanced by
elastic force.The mass centre has an inherent eccentricity
from the centre of rotation.
The deflection tend to be very large near or at critical
speed and gives rise to considerable vibrations.This may
break the shaft.That is why rotating machines are not
allowed to run near or at critical speed.
Author:arbelectbit@yahoo.com
| Is This Answer Correct ? | 7 Yes | 1 No |
Post New Answer View All Answers
What is the difference between a verilog task and a verilog function?
What is synchro?
sir i applied for hpcl(electrical).i want to know from which subjects most of the technical que will b asked.and pattern of the written test.pls help me
is this the formula of building wiring to get the main breaker.Watts/volts*.8%+higher motor*(25%)=ampere. yes or no or send the correct formula for building wiring.
we have amp, voltage, kw, length detail then how to calculte copper & alluminium size of conductor of 3-phase induction motor
What are the differences between single phase and three phase?
How work of capacitor in dc supply...???
Where is the best place to mount distribution panel in a house.
What is the drawback of class b amplifier?
A system absorbs 100 k J of heat and the increase in its internal energy is 100 kJ; the work done is
Is any generator is developed which is operated with out diesal or other expensive source?
What is meant by control system?
sir i have a car stereo system and there is jack on him so can u tell me a way to find out their power terminals on the jack or on the circuit board"
Why two phase welding machine is used instead of three phase welding machine.
can u give me a brief idea about power line carrier communication ??
