| Abstrakt: |
Small and medium enterprises are encouraged to make innovations, one of which is making bicycle frames. Effective and efficient truss manufacturing technology is needed to reduce dependence on raw materials for truss pipes and truss production procedures. The first step in creating a bicycle frame with an attractive shape, light weight, sufficient strength, and the ability to improve the overall performance of the bicycle is design and simulation. In order to make a folding bicycle frame that is effective and efficient in the manufacturing process and achieves the specified strength requirements, the design and finite element analysis of the bicycle frame is carried out in this research. The folding bike frame design applies A356 aluminum type material which is usually applied by casting techniques. Changed the shape and size of the folding bicycle frame that is currently on the market, and improved the thickness of the frame. There are three different sizes for the thickness of the tube material: 2 mm, 3 mm and 4 mm. A 2000 N load is applied over the seat tube. The stresses and deformations caused by loading at the end of the seat tube can be calculated using the characteristics and material properties of the aluminum type. The selected design is then subjected to finite element analysis by the ANSYS software. The results of the design of the electric folding bicycle frame using cast aluminum A356 show the main size of 984 mm which uses 5 main frame components, namely the head tube, seat tube, right main frame, left main frame, and hinges. The simulation results of an electric folding bicycle frame applying a load of 2000 N show that the 2 mm thickness of the frame experiences the greatest von Mises stress, especially at the tube and hinge joints, which is 61.67 MPa. This voltage is still below the yield stress of 165 MPa for A356 material so it is safe to use. The biggest deformation that occurs when the 2 mm thick frame is loaded is 0.229 mm in the seat tube area. The general construction safety factor is 2.67 so it is safe to use. [ABSTRACT FROM AUTHOR] |
