Applying the vibrational motion
A cos (
pt+φ) +
Bcos 2
pt to a conveying deck, the conveying velocity
V of the body on the deck is given theoretically
V/
pA=-2 εcos (πδ+2φ),
if ε=
B/A<<1, δ=μ
g/
A/p<<1. Here
p is the fundamental angular velocity of the deck, μ the coefficient of friction,
A the amplitude of the fundamental vibration,
B the amplitude of 2nd order harmonics and
g the acceleration of gravity.
Moreover
V/
pA for the ordinary values of ε and δ is calculated by analog computer using ε, δ and φ as a parameter. As the result, the maximum value of
V/
pA is obtained when ε=0.25, δ=0. 2 and φ=80°, 170°. Therefore, a maximum conveying velocity can be required from the above conditions when the velocity amplitude of the deck is constant. Reversely when the velocity is given, a necessary minimum velocity amplitude of the deck can be calculated.
The above theoretical results are ascertained experimentally.
抄録全体を表示