Analisis Penyerapan Energi Crash Box Pola Origami pada Pengujian Frontal Impact Posisi Angular Frontal
Abstract: In the car, the body
structure is designed in such a way so as to transfer and absorb energy. This
serves to minimize the result of this accident related to kinetic energy. This
needs a system to absorb the kinetic energy maximally, so as a result of a
frontal collision events that can be reduced optimally and kinetic energy can
be absorbed by a front body structure. Devices used for absorbing kinetic
energy in the car is usually called a crash box, which is located between the
main structure and bumper. Crash Box generally tubular thin shaped. It has been
a lot of research about the crash box. In this study using crash box origami
patterns and using methods taguchi orthogonal array L9 (34). AA7003-T7 aluminum
material modeled as bilinear isotropic hardening, the loading method is Frontal
Impact Frontal Angular Position with impact angles of 5, 15 and 30 degree by
using the finite element software simulation methods. The simulation results
showed that the crash box in the lowest possible energy absorption were
happened at crash box with 5 degree, with 683 153 Joule energy absorbsion. The
highest result was happened to crash box number 5 with the results of 3,140.778
Joule. Lowest absorption on impact of 15 degree and 30 degree were happened to
crash box number 1 and number 3 with a value of 245 685 Joule and 174 845
Joule, while the highest absorption at mumber 3 with each value 1,708.521 Joule
and 1,750.872 Joule.
Penulis: Redi Bintarto, Andik
Atmaja, Imam Kusyairi
Kode Jurnal: jptmesindd170248
