Examination of Digging Efficiency Considering Force Feedback for Hydraulic Excavators Doshisha University

Format:

Conference/Event

Author/Creator:

Koizumi, Koizumi, author.

Contributor:

Andou, Hiroaki

Tsujiuchi, Nobutaka

Yoshida, Tatsuya

Conference Name:

SAE 2010 Commercial Vehicle Engineering Congress (2010-10-05 : Chicago, Illinois, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2010

Summary:

A high performance digging algorithm for a hydraulic excavator has not been established because the relationship between digging parameters and digging performance is complex. An examination process for a high-performance digging algorithm is proposed. In this paper, the digging efficiency is defined as the soil volume derived by the applied energy to drive the bucket in order to evaluate digging performance. The digging algorithm, which we study for high digging efficiency, decreases the reaction force to the bucket from the soil by moving the bucket upward when the reaction force exceeds a threshold during digging. Digging tests are performed with a miniature test device and a simulation model by two-dimensional distinct element methods (2D-DEM). The device and the simulation assess the effectiveness of the digging algorithm. It is quantitatively shown that the digging performance obtained by the feedback digging system is improved to prevent growing of reaction force

Notes:

Vendor supplied data

Publisher Number:

2010-01-1923

Access Restriction:

Restricted for use by site license