How Do You Calculate Displacement from a Unit Impulse Image?

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Discussion Overview

The discussion revolves around calculating displacement from a unit impulse image, with a focus on a mechanical system involving vibrations. Participants explore various aspects of the problem, including assumptions and parameters that may affect the calculations.

Discussion Character

  • Homework-related
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Jnanesha KS requests assistance with a problem related to displacement from a unit impulse image, indicating a lack of clarity on the calculations needed.
  • Some participants suggest that the request appears to be a homework question and encourage Jnanesha to provide more details about what has been attempted so far.
  • Jnanesha clarifies that the problem is not from homework or a textbook, and provides additional context, including parameters such as height, friction, and damping characteristics of the system.
  • One participant inquires about the progress made on calculating the natural frequency of vibration, emphasizing the importance of the rope fixings in the transmission of vibration.
  • Jnanesha expresses a lack of confidence in performing high-level calculations and acknowledges the difficulty in requesting help without providing a solution approach.
  • Repeated requests for assistance indicate a sense of urgency and a desire for collaboration from Jnanesha.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the best approach to solve the problem, and multiple views on how to proceed remain evident throughout the discussion.

Contextual Notes

Participants highlight various assumptions that may affect the calculations, such as the nature of the perturbing pivot and the characteristics of the ropes, but these remain unresolved.

jnanesha.ks
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Dear all,

Here is a problem that I need to get an answer. Kindly look at the image attached and help me by solving it.

Many thanks in advance,
Jnanesha KS
 

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Uhh...40+ views with 0 reply/answer?:cry:
 
Yes, trying to farm out the work, and then crying about it is surely the way to get anything done.

Nobody is going to just solve it for you. It looks like a homework question, although even if it isn't I doubt you'll get any help unless you put forth some effort of your own.

Try stating what you know/have done so far or what your specific problems/questions are.
 
jnanesha.ks said:
Dear all,

Here is a problem that I need to get an answer. Kindly look at the image attached and help me by solving it.

Many thanks in advance,
Jnanesha KS
You'll need to provide more details about your application, otherwise people will think this is homework, or perhaps some textbook-style problem for independent study.
 
Hi,

Sorry, I shouldn't have used any smileys/expressions. But, I was in hurry to get the solution.

Ok. I am also a mechanical engineer but lost touch with mechanics/vibrations etc. I work in prodcut design (concepts) enviornment and does not involve in much of calculation except some basic things like stress/shear stress/spring design/gear selection etc.

This piece of work is not either homework or from a textbook.

Kindly let me know what further inputs are required. From overview, I also thought following inputs might be needed:

1. Height of system (height of 10T mass from ground)

2. Friction (can be assumed zero)

3. Linear elongation of ropes (can be assumed zero)

4. System has damper? (from the figure it is un-damped system)

5. Perturbing pivot – every second 10mm to left or right à Is this continuous or for particular duration? (like 1 minute/1 hour etc)

I hope you guys trust me and help me.

Thanks,

Jnanesha KS
 
Dear all,

Kindly help me.

Thanks,
Jnanesha KS
 
What progress have you made calculating the natural frequency of vibration of the system?

The way the rope fixings work will be important in the way the vibration is transmitted to the ropes, both top and bottom.
I would also bear in mind that 20mm thick steel 'ropes' are pretty stiff transversally so will not really start to flex properly until some distance away from top and bottom fixings.

As you have described it, this looks like a theoretical exercise?
 
Hello,

I know my answer will seem "rude" to you all. But, being honest, I am not good in such high-end calculation. Basically I am concept designer.

Also I know I can not force anyone here to help me by solving this. All I can do is a "sincere request".

Thanks,
Jnanesha KS
 
jnanesha.ks said:
Dear all,

Here is a problem that I need to get an answer. Kindly look at the image attached and help me by solving it.

Many thanks in advance,
Jnanesha KS


What is the own frequency oscillation of the system?(Response to a unit impulse?)
 

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