Science and Education Publishing American Journal of Mechanical Engineering 1 7 2013 11 25 Static and Modal Analysis and Optimization of Cross-Sectional Area of the Manipulator Arm 236 240 EN Ján Vavro jr. Ján Vavro University of Alexander Dubček in Trenčín, Faculty of Industries Technologies, Púchov, Slovakia AJME20131717 10.12691/ajme-1-7-17 2013 11 01 2013 11 11 2013 11 25