On two experiments with falling chains

Abstract

The article considers paradoxical results of metal chain movement that do not agree with classical theoretical models. We present the results of experiments with the falling U-folded chain and with chain fountain. The velocity and acceleration of chain motion were measured and estimated. The trajectory of the fountaining chain links has been investigated experimentally. A comparison of the experimental data with existing theoretical models is made.

Unfolding the dynamics of free-falling folded chain: Experiments and simulations

“…The author also reported that the tip of the chain is falling faster than the time required for its free fall. Domnyshev et al [24] used two different types of chains with different diameter to investigate the free falling of the U-folded chain. High-speed imaging was used to record the experiment with rate 500 fps.…”