Abstract
In Japan, construction equipment are used for building construction. In a year, more than 2,000 complain have registered because of the vibration of this construction machinery. In addition, those complain are related to building construction in approximately 60% of the cases, which are often demolition work. Indeed, the construction equipment generates uncomfortable vibration to neighbors. Therefore, the purpose of this research is the development of a vibration control device for excavators. A Tuned Mass Damper (TMD) is most commonly used for vibration control. Usually, the TMD is tuned by using optimal design formula depending on the weight and the stiffness of the control target. However, the tuning violated if the parameters of the control target are changed. In order to solve this problem, a Multiple Tuned Mass Damper (MTMD) is applied in this study. This paper compares the performance of MTMD and TMD by numerical simulation. Then, a prototype of MTMD has been fabricated and its performance checked experimentally. As a result, it is confirmed that the prototype of MTMD has good performance in vibration control for excavator.
