In the case of the cylindrical elastomer washers, measure-
ments would be conducted for two arrangements of the
specimens. In the
first arrangement the long axis (symmetry
axis) of the specimen was oriented along the vertical axis, i.e.
parallel to the direction of motion of the vibrating mass. In
the second arrangement, the long axis of the specimen lay in the
horizontal plane, i.e. it was oriented perpendicularly to the
direction of vibrations. The specimens and their designations
are shown in Fig. 4. The letter W represents a cylindrical
specimen while the letter C or Z (in the second position) stands
for the kind of material: Adipol 70 ShA and Ultraflex 64 ShA,
respectively. The letters T and L indicate the direction
of specimen loading: L – along the specimen's axis of symmetry,
T – transverselyto the symmetryaxis. Digit1 at the end stands for
a 25 mm long specimen while digit 2 indicates a specimen length
of 16 mm. For all the cylindrical elastomers the outside diameter
was 16 mm and the inside diameter amounted to 6 mm.