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Coefficient of restitution for viscoelastic disks [PDF]
Physical Review E, 2007 The dissipative collision of two identical viscoelastic disks is studied. By using a known law for the elastic part of the interaction force and the viscoelastic damping model an analytical solution for the coefficient of restitution shall be given.
A. Hatzes, P. A. Engel, Thomas Schwager
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Coefficient of Restitution as a Fluctuating Quantity [PDF]
Physical Review E, 2011 The coefficient of restitution of a spherical particle in contact with a flat plate is investigated as a function of the impact velocity. As an experimental observation we notice non-trivial (non-Gaussian) fluctuations of the measured values. For a fixed
A. Hatzes +6 more
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Coefficient of restitution for elastic disks [PDF]
Physical Review E, 1998 We calculate the coefficient of restitution, $\epsilon$, starting from a microscopic model of elastic disks. The theory is shown to agree with the approach of Hertz in the quasistatic limit, but predicts inelastic collisions for finite relative ...
A. P. Hatzes +31 more
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Coefficient of Restitution of Badminton Smashes
International Scholastic Journal of Science, 2019 Badminton smashes were recorded and analyzed at high speed, measuring the velocities of the shuttlecock and racquet head to determine the relationship between initial impact velocity and the coefficient of restitution. It was found that the coefficient
Tee Monsereenusorn
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Coefficient of Restitution of Wet Tennis Balls [PDF]
International Scholastic Journal of Science, 2014 The coefficient of restitution of a damp tennis ball is of interest to tennis players. Using a spray bottle, water was added to a tennis ball and the mass of water on the wet ball was determined. The ball was then dropped from a fixed height of 0.86 m.
Eugene Jang, Tony Kim
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Basketball Surfaces and Coefficient of Restitution
International Scholastic Journal of Science, 2015 A basketball was released from varying drop heights to simulate the impact speeds of a typical soft, medium, and hard dribble. This was repeated across four different surfaces that students typically play on–exposed aggregate concrete, maple wood ...
Kristyn Peacock, Faith Pearson
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Coefficient of Restitution of a Squash Ball
International Scholastic Journal of Science, 2019 The coefficient of restitution of a Double Yellow Dot squash ball was examined at impact velocities ranging from 13 to 29 m/s. A high-speed camera was used with video analysis to record and analyze the motion of a squash ball as it collided against a ...
Marvin Limpijankit
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Coefficient of Restitution of a Tennis Ball
International Scholastic Journal of Science, 2007 The coefficient of restitution (COR) of a tennis ball was investigated over a range of impact velocities. It was found that the COR of the ball was lower than ATP regulations specify, and that the COR decreased with increasing impact velocity.
Andre Roux, Jennifer Dickerson
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Coefficient of Restitution of a Takraw Ball
International Scholastic Journal of ScienceTakraw is a popular sport in Southeast Asia that is akin to “Foot Volleyball”. It is played by two teams kicking a woven rattan or polymer ball over a net. The coefficient of restitution of a polymer takraw ball impacting the floor at a velocity of 5 ms -
Passawit Jongsuebchoke, Kris Pornsirikul
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Energies, 2022 Aiming at the problem that the current coefficient of restitution model cannot effectively predict energy dissipation in the multi-body system collision process, a coefficient of restitution model considering the yield strength is proposed in this ...
Xichun Liu, Wei Chen, Hu Shi
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