Answer / karthick

if the frequency of the applied force is greater than the
natural frequency of the system vibration occurs.here if we
apply the force,the internal energy of the system gets
converted into elastic energy and starts to vibrate.at the
end of each cycle, the system tends to come to equilibrium
state.but it comes to rest only if the internal energy
overcomes the elastic energy.

Answer / karthigan

Vibration occur in bodies having mass and elasticity.
vibrations also occur below natural frequency..eg damped
frequency.. Vibrations occurs due to Strain energy stored in
it which acts as internal forces & kinetic energy... which
causes to & fro motion

Answer / manu

Vibration refers to mechanical oscillations about an
equilibrium point. The oscillations may be periodic such as
the motion of a pendulum or random such as the movement of a
tire on a gravel road.
Vibration is occasionally "desirable". For example the
motion of a tuning fork, the reed in a woodwind instrument
or harmonica, or the cone of a loudspeaker is desirable
vibration, necessary for the correct functioning of the
various devices.

Answer / asdfg

vibration is nothing but vibration

what is the purpose of bowl in a centrifugal purifier?

2 Answers   ACC,

---

which course is suitable to study for second year mechanical students..? where we can study that.?,whether it should be in city side or rural area ...?

1 Answers  

---

When repacking a valve the rings of packing should be oriented so that the packing ends are installed ____________.

0 Answers  

---

What is a torque converter?

1 Answers  

---

What is a function of Turbo charger in diesel engine

15 Answers   Maruti Suzuki, Nissan,

---

work done in throttling process is given by which formula?

1 Answers   Siemens,

---

please send interview questions on foundry. my email id is m_vijaypanday@yahoo.co.in

0 Answers  

---

how to select speed of the spindle and work head for production jobs ( Internal grinding )

0 Answers  

---

a compressor running at 100 rpm gives 40% efficincy speed increase from 200 wt will be the efficincy???????????

2 Answers  

---

What is the effect of inter cooling in gas turbines ?

0 Answers  

---

Which material grade is better for low temperature application upto -20 deg C either IS 2062 GR B OR IS 2062 GR C ?

0 Answers  

---

What is the importance of Prandtl Number in heat transfer?. Compare the prandtl numbers of Air, water and Liquid metal. If prandtl number is more what do you understand?. Will you provide fins to enhance heat transfer when prandtl number is less?.

1 Answers   IGCAR,

---