Hyderiqbal Sheikmohamed

7 Questions 4 Answers 0 Followers

Questions related from Hyderiqbal Sheikmohamed

How the harmonics in vibration are sound is generated in machines?

I understand there will be exact multiple of fundamental frequency based bearing rotation with respect to fundamental, based on gear rotation with respect to fundamental. But what exactly means...

26 March 2022 3,352 1 View

Can we do order analysis with raw data. if i have rpm vs time, and acceleration vs time in matlab/ octave/ Labview?

I also would like to know, All the noise produced from machine, will always multiples of fundamental frequency? is there any other do contribute apart from resonance frequecy?

03 July 2019 5,988 3 View

Do the object/surface vibrating at a frequency of 1000 hz produce the sound only at 1000 hz only?

In General, Washing machine to the maximum has 1400 rpm during its spin. ie eg: 23 hz. So The sound generated because of this motor is also a comes under the frequency of 23 hz.?

30 November 2018 7,698 2 View

Sound Quality and its strategy to improve

What are all the key strategy that can improve sound quality? How can we find the main contributor in the machine that affects sound quality??

01 January 1970 8,816 2 View

Harmonics in vibrations..

I am aware of how fundamental frequency of bpf raises. but trying to understand physically causes to excite the harmonics of these fundamental.. this applicable to bearing harmonics, gear mesh...

01 January 1970 6,416 2 View

Near field and far field

How different the near field is from the far field? How it will be in terms of perception. Why the standards recommends to measure in the far field for sound power level.

01 January 1970 2,935 0 View

NVH open source software

What are the open source software available for the analysis of noise vibration and harshness?

01 January 1970 2,630 9 View