7-E) A table for sorting seeds requires a reciprocating motion with a stroke of 3.0 mm and a frequency from 10 to 100 Hz. The excitation is provided by an eccentric weight shaker. The total mass of the table and shaker is 75 kg. (a) Propose a scheme for mounting the table. (b) Specify the spring constant, the damping coefficient, and the unbalance of the exciter; such that the resultant stroke is within 2% of desired across the frequency range; and no more than 7.0 cm of static spring deflection.

7-E) A table for sorting seeds requires a reciprocating motion with a stroke of 3.0 mm and a frequency from 10 to 100 Hz. The excitation is provided by an eccentric weight shaker. The total mass of the table and shaker is 75 kg. (a) Propose a scheme for mounting the table. (b) Specify the spring constant, the damping coefficient, and the unbalance of the exciter; such that the resultant stroke is within 2% of desired across the frequency range; and no more than 7.0 cm of static spring deflection.