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> find ... a defect by tapping it acoustically Why train wheels used to be tapped with a hammer at platforms: https://en.wikipedia.org/wiki/Wheeltapper https:/
by B1FF_PSUVM 8y ago
> find ... a defect by tapping it acoustically
Why train wheels used to be tapped with a hammer at platforms: https://en.wikipedia.org/wiki/Wheeltapper https://en.wikipedia.org/wiki/Wheeltapper
- carlmr 8y agoThat's really cool!
- B1FF_PSUVM 8y agoI think there are movies, with train platform scenes, where you can see the railway guy going by with a mallet, giving the wheels a light tap and listening to the sound.
- jacquesm 8y agoI use a similar trick with bike wheels, when re-spoking or checking a wheel for integrity I strum the spokes. Good rim and tight spokes sound different than broken rim or loose or overstressed spokes. The difference is easily noticeable.