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Hello, I've checked if I can replace lead shot with sand: It is not possible since I cannot obtain the same mass with the available space. Also I've been reading some more and it might be possible that the lead shot has similar effect to what exist on mass dampers used on building filled with...

What kind of surprise would you expect? Noise or no impact? I will check if I can get the necessary mass with sand. Thanks, Laurent

Hello, I'm working on a automotive exhaust application where there was a vibration issue. To solve it, a mass damper was added. It is simply welded on the exhaust pipe. The damper is made of a beam welded onto a short cylinder filled with lead shots and closed by 2 end caps. This was the...