Analysis of Von Mises Stress of Sweeper Component in Electric Sweeper Car Prototype
Indonesia is in the second place of the world’s countries that produces the most plastic waste after China. As a solution, large cities in Indonesia such as Jakarta, Bandung, and Yogyakarta have started to take special care of their waste management by taking advantage of sweeper cars. The purpose of this special care is to increase effectiveness and rate at which waste removal is performed. High price has been one of the factors that hinders the possession of sweeper cars by other cities, considering the need to import one. Therefore, a research that aims to produce a design of more affordable and eco-friendlier sweeper car needs to be carried out, given that a sweeper car generally uses fossil fuel which produces air pollution as a result of its exhaust gas. A prototype of electric sweeper car is a new technology of sweeper car that is eco-friendly since it is powered mainly by electricity so that it does not produce exhaust gas. This research aims to produce a design of sweeper component with safe and efficient mechanical system. The design process was done on SolidWorks 2017 software and proceeded by Finite Element Analysis which seeks to analyze the characteristics of static load on sweeper component and to determine its von Misses stress and safety factor. The design of the component produced a result which shows that material used for the sweeper is AISI 1045 mild steel with yield stress of 530 MPa and housing motor’s safety factor of 23.5, letter C’s safety factor of 29,12, triangle plate’s safety factor of 10,33, and letter U’s safety factor of 8,52, and arm top/bottom’s safety factor of 76,92. Overall safety factor of the component is more than one, which is then considered safe.
Keywords - Sweeper, Safety Factor, Von Mises Stress, Electric Sweeper Car.