Static Analysis in The Chassis Of 2023 Polibatam KMHE (Kompetensi Mobil Hemat Energi) Prototype Car Using 6061 Aluminium Alloy and Galvanized Steel Material

Abstract

The chassis is a frame structure that must withstand compressive, shear, and tensile forces. In the context of vehicles, the function of the chassis is as an internal frame that is the basis for vehicle production, which will later be combined with other components such as the engine, steering, brakes, body, and electrical system. The chassis also serves to support the weight of the vehicle and driver and ensure that the car remains sturdy and stable to prevent deformation that can cause damage. In the chassis design process, it is important to pay attention to the latest developments to produce an optimal design. After conducting a thorough analysis including evaluating the advantages and disadvantages, the next step is to determine the strength analysis by considering stress, strain, and factor of safety. "Kontes Mobil Hemat Energi" (KMHE) is a contest to find the most energy-efficient car prototype. Therefore, a lightweight chassis is also a key factor that can make a prototype car more fuel efficient. This is also what causes the need for simulation as a reference so that the lightness of the chassis made still meets safety standards. The following conclusions were obtained that after reducing the size of the chassis, the chassis still meets the need for the required strength according the shown analysis result that has been done. The loaded stress value is smaller than the weakest material yield stress and the factor of safety value is above than 1.