20911 部品間の伝達特性に基づくインパクトレンチの振動騒音低減
詳細
The vibration and noise during fastening a bolt by an impact wrench are measured and the target frequency is determined for improvement. Then the torsion mode shape of the anvil part is improved by a damper inside. Also the impact force of the hammer part in longitude direction based on contribution analysis is reduced by anti-vibration material. Finally noise reduction is confirmed during fastening.
