Frame modal analysis for an electric three-wheel vehicleFaizal Arifurrahman, Indrawanto Indrawanto, Bentang Arief Budiman, Poetro Lebdo Sambegoro and Sigit Puji SantosaMATEC Web Conf., 197 (2018) 08001DOI: https://doi.org/10.1051/matecconf/201819708001