Analisa Konstruksi Pada Modifikasi Penambahan Panjang BackhoeDeck LCB.Brahma Galaxy

Abstract

The barge backhoe deck is planned to be modified to add length so that analysis is needed
regarding the strength of the structure, considering that most coal loading and unloading processes
take place on the backhoe deck, so the safety of the backhoe deck structure is very important. In this
study, we will find out how much stress occurs on the backhoe deck by using the Finite Element
Method as the media of analysis.From the results of the simulation and analysis it is known that the
maximum voltage that occurs when the backhoe is not operating is equal to 24 MPa, and when the
backhoe is operating that is equal to 27.43 MPa. The maximum deflection when the backhoe is not
operating is 60.99 mm, and when the backhoe is operating that is 68.6 mm. Factor of safety when the
backhoe is not operating is 9.6 and when the backhoe is operating is 8.5.Based on the simulation the
maximum voltage value is still below the permit voltage in the manual calculation, namely 166 Mpa.
The deflection value of the simulation results is also still below the maximum deflection value that is
permitted in the manual calculation of 70 mm. The factor of safety value according to BKI can be
concluded that the construction of the backhoe deck is declared safe in loading when the backhoe is
not operating or when the backhoe is operating because it meets the safety factor requirements that
the safety factor value must be more than 1.