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This Paper presents the “Frequency Sweep Virtual Analysis” as a tool to help to define the best powertrain mount concept in order to identify the resonance mode frequency on Powertrain System. Applying this method, we can identify proposals to reduce loads in the Powertrain system due the resonance mode and consequently minimize possibility of exceeding material strength. The “Frequency Sweep Virtual Analysis” drives the powertrain mounts design to avoid running many Road Load Data Acquisitions (RLDA) in a trial-and-error process (Cost reduction and timing savings).

This study aims to develop a virtual structural durability procedure for the formula SAE chassis and apply it on 2015 Maua Racing vehicle in order to identify potential durability concern areas and mass reduction areas. Quasi-static load cases were developed, based upon acceleration experimental data and analytical load transfer function, to represent the vehicle dynamic behavior at several work conditions. Virtual simulations (multibody and finite elements) indicate that 2015 chassis meets the targeted durability criteria for both peak loading and fatigue damage. Borderline regions were verified considering peak loading target and a special attention should be paid to them during reduction mass studies avoiding the target violation. Other regions present structural stress considerably lower than material capability, what indicates significant mass reduction potential.