PENENTUAN FREKUENSI PRIBADI PADA GETARAN BALOK KOMPOSIT DENGAN PENGUAT FIBERGLASS
Abstract: This aim of the
study was to experimentally analyze the
natural frequency (n) of fiberglass reinforced polymer composite
beam. The study used the spectrum method
for experimental analysis. The spectrum
method for experimental analysis was done by various position of 5 exciters.
The supports used
were a fixed-free
(cantilever) with the
material of fiberglass reinforced polymer
composite in the
form of beam
with length 50
cm, width 3
cm, and thickness 2 cm. Composite
material consisted of two com positions that was 5 % of fiberglass and 20
% of fiberglass.
The devices used in
the study was
testing machine, IRD mechanalysis comprising
vibration sensor, speed
regulation unit, tachometer,
and vibrator engine. The
measurement was done
on deflection, frequency
response function, and spectrum.
The results of
the study obtained
: For experimental
analysis, at percentage
of fiberglass 5 %, value nmax = 13125 rpm, nmin
= 12600 rpm, whereas the percentage of fiberglass 20 %,
value nmax =
13230 rpm, nmin = 12990 rpm.
Penulis: Mustafa
Kode Jurnal: jptmesindd110159
