Abstract
Excavators are pieces of construction machinery used to dig trenches, holes, and foundations. An excavator with crane function has been developed and used in Japan in recent years. However, there have been several reports of accidents where excavators have toppled over during crane operations. In this study, prototype model tests were carried out to investigate the instability factors in the propelling performance of an excavator with a lifted load.
The load variation of a lifted load was measured by installing a load cell on the bucket of the excavator, and the behaviour of the excavator during self-propulsion was measured by a motion analysis using a high-speed video camera.
To reduce the variation in the lifted load during the propelling performance of an excavator with a lifted load, it was observed that it is important to confirm the flatness of the site and decrease the running speed.
