Perilaku Stress Rampdoor Jetty Pelabuhan Bumi Harapan Sepaku-IKN Menggunakan LISA FEA V.8.
Perilaku Stress
Kata Kunci:
Defleksi, FEA, LISA, Rampdoor, TeganganAbstrak
Alat berat yang digunakan dalam pekerjaan ini adalah 1 buah crane barge di area laut, dan 2 buah excavator breaker di area bongkar muat material di dermaga Pelabuhan PT MLM yang akan dibongkar. Excavator yang digunakan dalam pekerjaan pembongkaran ini dimobilisasi melalui dermaga terdekat. Sebagai aspek keamanan dan keselamatan agar tidak terjadi apa-apa, maka kondisi rampdoor harus diperhitungkan beban yang akan diderita saat excavator melintasi rampdoor tersebut, apakah kuat atau tidak. Pada penelitian ini, metode pemodelan rampdoor dilakukan dengan menggunakan software finite element analysis dengan LISA FEA V.8 (lisensi) untuk mengetahui kapasitas tegangan dan kemampuan layan dari rampdoor tersebut. Dari hasil pemodelan dan analisis numerik menggunakan analisis elemen hingga LISA FEA V.8 (license) didapatkan beberapa perilaku tegangan dan defleksi yang terjadi akibat beban yang diberikan dengan dua kondisi pemodelan beban dimana kondisi tersebut adalah saat mesin mulai melintasi rampdoor dan saat berada ditengah bentang rampdoor, dapat dilihat bahwa rasio defleksi yang terjadi dari kedua kondisi tersebut adalah sebesar 1.754, dimana defleksi awal saat memasuki rampdoor terjadi defleksi sebesar 0.1231 m pada tengah bentang dan saat mesin berada ditengah bentang menjadi 0.216 m, sedangkan momen yang terjadi berbeda dengan rasio 1.576 dengan 2 kondisi yang sama pada permodelan beban dan rasio tegangan yang terjadi sebesar 0.844.
Referensi
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