Stress Behavior of Rampdoor Jetty Bumi Harapan Port Sepaku-IKN Using LISA FEA V.8.
Stress Behavior
Keywords:
Deflection, FEA, LISA, Rampdoor, StressAbstract
The heavy equipment used in this work is a crane barge in the sea area, and 2 excavator breakers in the loading and unloading area of the material at the jetty of PT MLM Port to be unloaded. The excavators used in this demolition work are mobilized through the nearest jetty. As a security and safety aspect so that nothing happens, the condition of the rampdoor must be taken into account the load that will be suffered when the excavator crosses the rampdoor, whether it is strong or not. In this study, the rampdoor modeling method was carried out using finite element analysis software with LISA FEA V.8 (license) to determine the stress capacity and serviceability of the rampdoor. From the results of modeling and numerical analysis using finite element analysis LISA FEA V.8 (license) obtained some stress and deflection behavior that occurs due to the load given with two load modeling conditions where the condition is when the machine starts to cross the rampdoor and when it is in the middle of the rampdoor span, it can be seen that the deflection ratio that occurs from these two conditions is 1.754, where the initial deflection when entering the rampdoor occurs a deflection of 0.1231 m in the middle of the span and when the machine is in the middle of the span to 0.216 m. while the moment that occurs is different from the ratio of 1.576 with the same 2 conditions in the load modeling. and the stress ratio that occurs is 0.844.
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