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1 Journal of Achievements in Materials and Manufacturing Engineering

1 2020

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Modelling analysis of high effect of roll hoop main on the strength of student car formula chassis

Tamjidillah M., Subagyo R., Isworo H., Nanlohy H. Y.

Journal of Achievements in Materials and Manufacturing Engineering

2020

Vol. 100, nr 1

26--40

Purpose: To analyse the strength of materials by means of optimization, find the best value of the strength test of mutually influential materials with a variation of roll-hoop height. Design/methodology/approach: The research began with the design of a threedimensional model by varying the height of the roll-hoop on chassis types: A, B, C, D, E, F, G, H ,and I. The height of the main roll hoop at each chassis is: 502, 504, 506 508, 510, 512, 514, 516 and 518 mm. Then by using the student version of Autodesk Inventor, a simulation is made to test: Deflection, Normal stress, Shear stress (T-x / T-y) and Torsional stress. The results of this test are used to analyse the types of chassis that have been designed so that the best chassis design is obtained. Findings: The results obtained in this study are the value of Normal stress decreases with increasing roll-hoop height, and applies inversely to the torsional stress value. Deflection values tend to be stable with increasing roll-hoop height, while Shear stress T-x and T-y values tend to fluctuate. Research limitations/implications: The chassis material uses carbon steel which has mechanical property values in accordance with 2015 FSAE Standard regulations. Practical implications: The optimization results of the design of the roll hoop height on the chassis show that the chassis type B with the main roll hoop height of 504 mm is the best with the lowest deflection value and the difference in tension according to the FSAE rules. Originality/value: The research that has been done only tests the strength of the ingredients separately. In this study trying to analyse the strength of the material by way of optimization to find the best value from the strength test of material that influence each other with a variation of roll-hoop height.