PENGARUH CRASH BOX BERBENTUK TABUNG 2 SEGMEN TERHADAP KEMAMPUAN MENYERAP ENERGI IMPAK DENGAN SIMULASI KOMPUTER
ABSTRACT: Crash Box is a very
important part as absorbing impact energy, especially in the frontal crash
case. The purpose of this study was to determine the optimal design on two
circular cross sections Crash Box to its ability to absorb impact energy and
deformation pattern. The independent variable in this study were length, and
thickness of the Crash Box with length of tube 1 (h ) = length of tube 2 (h 2 )
= 40, 50, 60 mm and thickness of tube 1 (t 201 1 1 ) = thickness of tube 2 (t )
= 2,5 ; 3 ; 3.5 mm were analyzed by the Taguchi method.The dependent variable
is the energy absorbed and the deformation that occurs in Crash Box due to the
impact test (Impactor) and is measured by using finite element-based software
which is Ansys 14.5. Based on data from the simulation results, it can be
obtained on one circular cross section Crash Box has the ability to absorb the
energy of 2762.89 A. For optimum design of two circular cross sections Crash
Box has the ability to absorb the energy of 4435.04 J. Optimum design of Crash
Box has length of tube 1 (h 1 ) = 40 mm, length of tube 2 (h 2 ) = 60 mm,
thickness of tube 1 (t ) = 3.5 mm, thickness of tube 2 (t ) = 3 mm. From the
deformation pattern analysis, it can be seen that the deformation in the Crash
Box can be divided into 2 types: Concertina mode (bending on the Crash Box
walls is symmetric) and Diamond Fashion (bending on the Crash Box walls is not
symmetrical).
Penulis: Asroni, Moch. Agus
Choiron, Anindito Purnowidodo
Kode Jurnal: jptmesindd140197
