Structural Behavior Measurement
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Active In SP

Posts: 1
Joined: Apr 2010
07-04-2010, 03:23 PM

I need the details of the seminar and presentation on the topic as mentioned above.[/size][/font]
Active In SP

Posts: 291
Joined: Apr 2010
11-04-2010, 02:18 PM

Structural behavioral Measurements
This article concentrates on the measurement of the vibration
of mechanical structures and machinery.

Spectral Analysis:
the most convenient way to analyze a vibration
signal is to obtain its frequency spectrum because Resonances are also manifested as peaks in a frequency
spectrum. also because Excitation forces (especially in rotating equipment), often
provide sinusoidal excitation at specific frequencies.

The FFT Analyzer:
The FFT computes
a discretized (sampled) version of the frequency spectrum of
a sampled time signal.Present day FFT analyzers can compute a DFT in milliseconds.

Rules of Digital Measurement:
Time Waveform:The DFT assumes that the sampled time
waveform contains N uniformly spaced waveform samples
Frequency Waveform: The DFT assumes that the digital
frequency spectrum contains N/2 uniformly spaced samples
of complex valued data
Nyquist Sampling: Shannonâ„¢s Sampling Theorem says that
a frequency spectrum can only contain unique frequencies

Zoom Measurements:
A Zoom transform is essentially a digital
filtering operation that takes place after the time waveform
has been sampled and it involves re-sampling, frequency shifting, and low pass filtering of the sampled data.

Digital Measurement Difficulties:
Aliasing of a signal occurs when it is sampled at less than
twice the highest frequency in the spectrum of the signal.In FFT it is solved by passing the analog signals through anti-aliasing
filters before they are sampled.
If a
time signal is not periodic in the transform window, when it
is transformed to the frequency domain, a smearing of its
spectrum will occur. This is called leakage.

for details , refer this pdf:

.pdf   Structural Dynamics Measurements.pdf (Size: 481.33 KB / Downloads: 58)

.pdf   VIBRATION-BASED STRUCTURAL MONITORING.pdf (Size: 496.18 KB / Downloads: 78)
Use Search at wisely To Get Information About Project Topic and Seminar ideas with report/source code along pdf and ppt presenaion

Important Note..!

If you are not satisfied with above reply ,..Please


So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page

Quick Reply
Type your reply to this message here.

Image Verification
Please enter the text contained within the image into the text box below it. This process is used to prevent automated spam bots.
Image Verification
(case insensitive)

Possibly Related Threads...
Thread Author Replies Views Last Post
  consumer behavior for good day biscuits ppt Guest 1 66 31-10-2016, 10:19 AM
Last Post: jaseela123
  ppt on heart rate measurement using fingertip based on microcontroller Guest 1 126 11-10-2016, 02:10 PM
Last Post: amrutha735
  mechanical measurement and instrumentation ak sawhney pdf free download Guest 1 80 28-06-2016, 04:19 PM
Last Post: Dhanabhagya
  download filler slab structural designs pdf Guest 1 100 06-05-2016, 09:35 AM
Last Post: mkaasees
  ansys civil structural tutorial pdf Guest 0 61 21-01-2016, 10:59 AM
Last Post: Guest
  scalable learning of collective behavior with source code Guest 0 65 07-01-2016, 01:29 PM
Last Post: Guest
  structural design of clariflocculator pdf Guest 0 152 04-01-2016, 12:20 PM
Last Post: Guest
  vtu mechanical measurement and metrology lab viva question with answers Guest 0 62 26-12-2015, 06:09 AM
Last Post: Guest
  consumer behavior buying towards mother dairy products Guest 0 88 29-11-2015, 11:18 PM
Last Post: Guest
  ansys civil structural tutorial pdf Guest 0 54 28-11-2015, 11:12 PM
Last Post: Guest