Results 231 to 240 of about 28,554 (265)
Optimization and test of pneumatic lifting seed distributor for maize plot seeder. [PDF]
Front Plant SciSong Q +5 more
europepmc +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Journal of Applied Mechanics, 1992
Simplified procedures for predicting post-collision motion in a mechanical system usually incorporate a “coefficient of restitution,” a ratio that must be estimated before the prediction can be completed. Two such ratios have been widely used for some time and a third has been introduced recently by W. J. Stronge.
Smith, Charles E., Liu, Pao-Pao
openaire +2 more sources
Simplified procedures for predicting post-collision motion in a mechanical system usually incorporate a “coefficient of restitution,” a ratio that must be estimated before the prediction can be completed. Two such ratios have been widely used for some time and a third has been introduced recently by W. J. Stronge.
Smith, Charles E., Liu, Pao-Pao
openaire +2 more sources
Negative coefficient of normal restitution
Physical Review E, 2012This paper shows that negative coefficients of normal restitution occur inevitably when the interaction force between colliding particles is finite. We derive an explicit criterion showing that for any set of material properties there is always a collision geometry leading to negative restitution coefficients.
Patric, Müller +2 more
openaire +2 more sources
Coefficient of restitution of aspherical particles
Physical Review E, 2014We consider the motion of an aspherical inelastic particle of dumbbell type bouncing repeatedly on a horizontal flat surface. The coefficient of restitution of such a particle depends not only on material properties and impact velocity but also on the angular orientation at the instant of the collision whose variance is considerable, even for small ...
Aldo, Glielmo +2 more
openaire +2 more sources
The restitution coefficient: A new interpretation
American Journal of Physics, 1998The restitution coefficient, used up to now to describe binary inelastic collisions between macroscopic bodies, is interpreted here as a measure of the limiting value of the recoil angle in binary inelastic collisions at microscopic scale. The description of inelastic collisions in terms of this new quantity enables us to dramatically simplify several ...
FALCONE, Giovanni, PIPERNO F.
openaire +2 more sources
Coefficients of restitution for a collision
Physics Education, 2021Abstract The coefficient of restitution (COR) for a collision is usually a number between 0 and 1 depending on whether the collision is completely inelastic, or perfectly elastic or something in between. That is the usual situation for colliding spheres or a ball dropped on a horizontal surface. A different situation arises when a bat
openaire +1 more source
Coefficient of Restitution of Coals
Nature, 1945In a previous note1 it was mentioned that mechanical properties are involved in the Stopes' classification of the petrological constituents of coals2, and they are of interest in any general study of the physical properties of coals. Much of the previous work on this subject has been undertaken from the point of view of mechanical failures in mines, or
C. G. CANNON, W. H. GEORGE
openaire +1 more source
Coefficient of tangential restitution for viscoelastic spheres
The European Physical Journal E, 2008The collision of frictional granular particles may be described by an interaction force whose normal component is that of viscoelastic spheres while the tangential part is described by the model by Cundall and Strack (Géotechnique 29, 47 (1979)) being the most popular tangential collision model in Molecular Dynamics simulations.
T, Schwager, V, Becker, T, Pöschel
openaire +2 more sources
2004
Abstract This chapter derives the coefficient of restitution from the interaction forces. It shows that the coefficient is not a material constant but rather depends on impact velocity. An analytic expression for the coefficient of restitution of viscoelastic spheres is derived.
Nikolai V. Brilliantov +1 more
openaire +1 more source
Abstract This chapter derives the coefficient of restitution from the interaction forces. It shows that the coefficient is not a material constant but rather depends on impact velocity. An analytic expression for the coefficient of restitution of viscoelastic spheres is derived.
Nikolai V. Brilliantov +1 more
openaire +1 more source
Listening to the coefficient of restitution - revisited
American Journal of Physics, 2001We present a new method for measuring the coefficient of restitution between a steel ball and a flat, smooth surface, based on the recording of sound files with a PC. We demonstrate how a simple and straightforward analysis of the sound files yields the coefficient of restitution as a function of velocity.
Stensgaard, Ivan, Lægsgaard, Erik
openaire +2 more sources