The full text of this article

 

Formation excavation resistance modelling for shovel dippers
by Kwame Awuah-Offei, Samuel Frimpong, Hooman Askari-Nasab
International Journal of Mining and Mineral Engineering (IJMME), Vol. 1, No. 2, 2009

 

Abstract: Modelling and simulation of formation resistance to excavation has become important in evaluating performance and designing efficient earthmoving equipment. Previous attempts at extending the passive earth theory to excavator dippers have only covered snap-shot estimates for a right-angled framed assembly. This work applies cable shovel kinematics and dynamics to estimate the dynamic cutting depth and angle, making it possible to apply the passive earth theory to model dipper dynamic formation resistance. Geometric simulation is applied to model the resistance due to the material payload. The models are then applied to simulate the formation resistance for a 17-yd³ dipper. The results show that the payload resistance (141-kN) is far more significant than the cutting resistance (between 16-kN and 31-kN).

Online publication date: Tue, 10-Feb-2009

 

is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

 
Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

 
Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Mining and Mineral Engineering (IJMME):
Login with your Inderscience username and password:

 

    Username:        Password:         

Forgotten your password?


 
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

 
If you still need assistance, please email subs@inderscience.com