DYNAMIC RESPONSE ANALYSIS DIESEL ENGINE MOUNTING USING FINITE ELEMEN METHOD 3D

• Main Author: Wisnu Handaru, Theofilus
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/47384
• Institution: Institut Teknologi Bandung

The engine mounting needed in the installation of machines because it can simplify the maintenance process and reduce the possibility of engine damage. The vibration produced by the engine when operating will affect the vibration of the engine mounting. If the natural frequency of the engine mounting and the engine are in the working frequency area of engine, the engine and its mounting will have a large vibration impact, so dynamic analysis needed to determine the dynamic response of the engine mounting when receiving excitation forces from the engine. Dynamic response testing of the engine mounting will be on different variables, both engine seat size and spring stiffness used. The engine mounting assumed to have I beam shape with various dimensions of size. In the analysis process, the spring supported engine mounting in holding the dynamic activity of the engine, the springs stiffness is one of the variables considered in this study. The results of the analysis show that all measured systems have a certain vibration severity. Machines measuring 600 mm × 200 mm and 600 × 300 mm have B vibration severity for both types of springs used, meaning the machine is safe to use for a long time. From these results, it shows that the size of 600 mm × 200 mm is better to use because it has the same vibration severity as the size of 600 mm × 300 mm even though it has a smaller size. The result of the dynamic response of all engine seat sizes for both types of springs has a natural frequency that is far from the working frequency.