Schedule 4 [J101p-10] Handle Vibration Reduction of Engine or Electric Powered Lawnmower Considering Daily Vibration Exposure Quantity 〇Ryoma Kubo1, Senta Uegaki, Junji Yoshida (1. 大阪工業大学) Keywords:芝刈機、モード分析、日振動ばく露量、振動低減