Bahha Hamzah
Introduction
Contents
My name is Bahha Hamzah. I was born in 1998. I am an ongoing Master of Mechanical Engineering student at Universitas Indonesia. I enjoy pursuing mechanical engineering, exploring applicable technology, and socializing with organizations and society.
Work Experience
PT. SUCOFINDO (2022-2024) I was a Calibration Electrical Technician in the Measurement and Testing Instrument Calibration Laboratory in PT. Superintending Company of Indonesia (SUCOFINDO). The following are the scope of my work: 1. Calibration of Pressure Equipment and instruments. 2. Calibration of Force Equipment and instruments. 3. Calibration of Mass Equipment and instruments. 4. Calibration of Volume and Chemical instruments. 5. Calibration of Temperature Equipment and instruments. 6. Calibration of Dimension Equipment and Instruments. 7. Calibration of Electrical Equipment and instruments.
Komputasi Teknik - Resume Pertemuan 1n(29/10/2024)
Conscious Thinking Heartware-Brainware (variable) = Array (1) Initiator (2) Intention (3) Initial Thinking (4) Idealization (5) Instruction
DAI5 adalah metode pemecahan masalah yang dikembangkan oleh Dr. Ahmad Indra Siswantara dari Universitas Indonesia. Metode ini dikenal sebagai “Conscious Thinking” dan berfokus pada proses berpikir yang dimulai dari niat hingga pemilihan alat bantu sebagai langkah akhir. DAI5 terdiri dari lima tahapan utama:
Intention: Menentukan niat dan tujuan jelas untuk menyelesaikan masalah. Initial Thinking: Mengembangkan pemahaman mendalam tentang masalah yang akan diselesaikan. Idealization: Menyederhanakan masalah dengan membuat asumsi-asumsi yang relevan. Instruction Set: Merancang langkah-langkah sistematis untuk mencapai solusi. Implementation: Menerapkan solusi menggunakan alat bantu yang dipilih. DAI5 dikembangkan untuk meningkatkan efektivitas dalam pemecahan masalah dengan mengutamakan pemahaman masalah sebelum memilih alat bantu, berbeda dari pendekatan yang lebih fokus pada penggunaan teknologi di awal tanpa analisis mendalam. Metode ini dapat diterapkan dalam berbagai bidang, termasuk teknik dan analisis Finite Element Method (FEM) untuk simulasi rekayasa teknik.
Komputasi Teknik - Application of DAI5 in Finite Element Analysis of Beam (04/11/2024)
To solve a finite element analysis (FEA) problem for a beam using the DAI5 method, let’s break down the process through each of the framework’s stages.
1. Intention Objective: Could you clearly define what you need from the analysis? For example: Understand stress distribution along the beam. Identify points of maximum deformation. Assess whether the beam design meets structural integrity requirements. Setting this intention will help ensure the analysis focuses on aspects critical to the beam’s design or intended use.
2. Initial Thinking Brainstorming Solutions and Approaches: Consider what type of beam you’re analyzing (e.g., simply supported, cantilever, or fixed). Review key parameters: material properties (e.g., Young's modulus, density), loading conditions (e.g., uniform load, point load), and boundary conditions. Explore different approaches, such as 1D or 2D beam elements, depending on the desired precision and complexity. Think about possible issues (e.g., local deformation or buckling) and consider preliminary FEA setups (mesh size, element type). 3. Idealization Envisioning the Ideal Solution: Imagine an optimized FEA setup for accurate results. In an ideal situation: The mesh is finely tuned to capture stress concentrations. Constraints are perfectly defined to replicate real-world conditions. Loads are applied accurately in the model to mimic physical forces on the beam. Think about minimizing computational resources while maximizing accuracy. For instance, refining the mesh only in critical regions rather than uniformly across the beam. Idealization here helps envision a balance between practical computational efficiency and the required detail level for your analysis.
4. Instruction Set Creating Practical Steps for Implementation: Model Setup: Create the beam’s geometry in the FEA software. Material Properties: Define the material properties based on your specifications (e.g., modulus of elasticity, Poisson’s ratio). Boundary Conditions: Apply constraints such as fixed supports or pinned supports at the beam ends. Load Application: Define the load according to your problem (e.g., point load at the center or a distributed load along the beam). Meshing: Choose an appropriate mesh size—use finer mesh near areas expected to have higher stress gradients. Run Analysis: Execute the simulation to calculate stress, deformation, and strain distributions along the beam. Interpret Results: Examine the outputs, focusing on stress and deformation patterns, particularly at load application points and support locations. Using DAI5 in this way provides a structured approach, balancing creative and practical aspects to achieve a high-quality FEA solution for your beam problem. If you encounter any specific issues during the analysis (e.g., unexpected stress concentrations or convergence problems), each step can help troubleshoot and refine the setup systematically. Let me know if you need further assistance with any specific stage or issue!
For the Intention stage of the DAI5 method, let's clearly outline the purpose and objectives of your beam analysis given the specifics:
Objective: Conduct a finite element analysis (FEA) on a 10-meter beam made of low carbon steel with an applied force of 10,000 N. The main goals are to: Evaluate the stress distribution along the beam under load. Determine the points of maximum stress and deformation to assess structural integrity. Ensure the beam's design can withstand the applied load without excessive deflection or risk of failure. These objectives set the direction for the analysis and help ensure all further steps are aligned with achieving these outcomes.
Initial Thinking Material Properties: Since the beam is made of low-carbon steel, it's crucial to incorporate its mechanical properties. Typical values include: Young's Modulus (E): Around 200 GPa, which will impact the beam’s deflection. Yield Strength: Usually around 250 MPa, which will help in determining the safety factor. Density: Approximately 7850 kg/m³, which affects the beam's weight and should be considered if self-weight is relevant in the loading conditions. Beam Type and Support Conditions:
Determine if the beam is simply supported, cantilevered, or fixed on both ends, as support type greatly affects stress and deflection. A 10-meter beam may be prone to bending, especially if it is simply supported, so we’ll need to apply constraints accordingly. Load Application:
For a 10,000 N load, decide whether it’s a point load, distributed load, or varying load. This influences the stress distribution. If it’s a point load applied at the center, the stress and deflection will be concentrated there. For a uniformly distributed load, we’d expect a different distribution. FEA Approach:
Mesh Size and Type: Choose an appropriate mesh for accuracy, perhaps finer mesh elements near supports and load application points. Element Type: Use beam elements if focusing on axial forces and bending, or shell/solid elements if detailed stress distribution across the beam’s cross-section is required. Boundary Conditions:
Consider realistic boundary conditions. Fixed or pinned supports will alter the results significantly and should be modeled as close to the real scenario as possible. With these initial thoughts in mind, we’re ready to move to the Idealization stage, where we’ll envision an optimal solution setup. Let me know if you’d like to proceed!
