This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Earthmoving in Miniature
Annotation ability available
Sector:
Language:
English
Abstract
A laboratory for study of earthmoving soil mechanics was developed by the Research Dept. of Caterpillar Tractor Co. Its principal facilities are soil bins for testing scale models of earthmoving equipment, in two sizes. Scale models have many advantages, including lower cost of construction, greater flexibility in the range of parameters that can be investigated, and closer control of test conditions. Models are best suited to basic studies of soil/machine relationships, and to comparative tests of configurations and operating conditions.
The paper discusses considerations involved in applying the theory of similitude to earthmoving, the assumptions that were necessary, and some of their implications. The scope is limited to the processes of cutting and loading soil. The importance of qualitative realism in model testing is stressed.
Recommended Content
Authors
Topic
Citation
Sullivan, R., "Earthmoving in Miniature," SAE Technical Paper 640180, 1964, https://doi.org/10.4271/640180.Also In
References
- Kondner R. L. “A Penetrometer Study of the In-Situ Strengths of Clays,” Materials Research and Standards 2 March 1962 193 195
- Nuttall C. J. McGowan R. P. “Predicting Equipment Performance in Soils from Scale Model Tests,” SAE Paper 408A 1961
- Dickson W. J. Young R. “Principles of Similitude for Soil-Vehicle Models,” McGill University Soil Mechanics Series, No. 6 1963
- Bekker M. G. “Theory of Land Locomotion,” University of Michigan Press 1956
- Barnes K. K. Bockhop C. W. McLeod H. E. “Similitude in Studies of Tillage Implement Forces,” ASAE Paper No. 59-106 1959
- Cobb D. E. Cohron G. T. Gentry J. D. “Scale Model Evaluation of Earthmoving Tools,” SAE Paper S327 1962
- Langhaar H. L. “Dimensional Analysis and Theory of Models,” New York John Wiley 1951