自然科学版 英文版
自然科学版 英文版
自然科学版 英文版

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中南大学学报(英文版)

Journal of Central South University

Vol. 15    No. 4    August 2008

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Reducing-resistance mechanism of vibratory excavation of hydraulic excavator
ZHU Jian-xin(朱建新),YANG Cheng-yun(杨成云), HU Huo-yan(胡火焰), ZOU Xiang-fu(邹湘伏)

School of Mechanical and Electronic Engineering, Central South University, Changsha 410083, China

Abstract:Based on the working principle of vibratory excavation of hydraulic excavator, the expression of digging resistance changed with time under sine wave inspiritment was deduced; a comparison analysis was given after calculating the forces status of rock and soil under static load and vibratory load respectively by using MATLAB; and then RFPA-2D(rock failure process analysis code) was used to make comparison of simulation experiment on rock and soil failure process under static load and vibratory load. The results demonstrate that, compared with the normal excavation under the same situation, the digging resistance and the energy consumption can be reduced by respectively 30% and 60% at maximum, and that the working efficiency can be increased by 45% at maximum owing to vibratory excavation.

 

Key words: hydraulic excavator; vibratory excavation; reducing-resistance mechanism; simulation

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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