Pengembangan Software Analisa Keandalan Struktur Dengan Model Dinamis Berbasis Monte Carlo Finite Element Method Pada Struktur Sederhana 2 Dimensi

Ichsan, Muhammad (2017) Pengembangan Software Analisa Keandalan Struktur Dengan Model Dinamis Berbasis Monte Carlo Finite Element Method Pada Struktur Sederhana 2 Dimensi. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Analisa keandalan struktur semakin sering digunakan beriringan dengan kondisi perancangan struktur bangunan lepas pantai yang memiliki ketidakpastian cukup tinggi, selain itu pertimbangan sisi ekonomis bangunan terhadap lingkungan laut. Konfigurasi struktur yang rumit menjadi perhatian sehingga muncul Metode Elemen Hingga. Dua permasalahan antara keandalan dan kerumitan struktur ini menghasilkan metoda analisa Monte Carlo Finite Elemen Method (MCFEM). Pada bagian pertama dari penelitian ini dilakukan perbandingan hasil analisa deterministik antara software yang dibuat pada Matlab dengan SAP 2000. Pada kasus ini struktur Plane Truss sederhana dengan derajat kebebasan banyak dikenai beban Model Dinamis pada tumpuan struktur. Pada bagian kedua setelah mendapatkan hasil yang menyerupai software SAP 2000, dilanjutkan penerapan algoritma MCFEM pada algoritma analisa deterministik yang sebelumnya telah dibuat. Hasil dari penelitian ini, memuat prosedur baru berupa algoritma perhitungan analisa keandalan dengan menggabungkan Simulasi Monte Carlo dan Metode Elemen hingga pada Model Dinamis. Selain itu, dengan software yang berbasis Matlab yang telah memiliki keakuratan seperti software komersial dapat digunakan untuk menganalisa model struktur yang lebih kompleks. Setelah dilakukan proses analisa keandalan sebanyak 100000 kali simulasi selama 4147 detik, menunjukkan hasil yang andal dengan probability of failure adalah 0 atau keandalan sama dengan 1. ======================================================================================================== Structural reliability analysis is increasingly used in conjunction with the design of offshore structures which have high uncertainty, Further, the consideration of the economic side of structures in the offshore environment. The complex configuration of the structure become concern so Finite Element Method appears. Two problems between reliability and complexity of these structures resulted in Monte Carlo Finite Element Method (MCFEM) method of analysis. In the first part of this research, we will show results comparison of deterministic analysis between software made in Matlab and analysis through SAP 2000. In this case model will assume as a simple Plane Truss structure with multi degrees of freedom appllied dynamic load in the support of structure. The second part after obtaining a good result compare wit SAP 2000, furhter we will apply MCFEM algorithm to the deterministic analysis algorithm which has been made. The results of this research, contains a new procedure in the form of reliability simulation algorithm by combining Monte Carlo Simulation and Finite Element Method in Dynamic Model. In addition, Matlab-based software that already has the accuracy of commercial software can be used to analyze more complex structural models. After a reliability analysis process of 100000 simulations for 4147 seconds, it shows reliable results with probability of failure is 0 or reliability equal to 1.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Analisa Keandalan, Dinamika Struktur, Metode Elemen Hingga, Monte Carlo, dan Software Matlab
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA347 Finite Element Method
T Technology > TA Engineering (General). Civil engineering (General) > TA645 Structural analysis (Engineering)
Divisions: Faculty of Marine Technology > Ocean Engineering > (S1) Undergraduate Theses
Depositing User: Muhammad Ichsan
Date Deposited: 19 Feb 2018 07:45
Last Modified: 19 Feb 2018 07:45
URI: http://repository.its.ac.id/id/eprint/49270

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