A new contact & slip model for tracked vehicle transient dynamics on hard ground

Date

2017-10-01

Author

Ozdemir, Mehmet Nuri
Kilic, Varlik
Ünlüsoy, Yavuz Samim

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This study presents a new general transient contact and slip model for tracked vehicles on hard ground which is simple, accurate, and in agreement with the test results to a satisfactory level. Simulating zero track speed instances become possible with the new contact/shear model which is the major proposed improvement in addition to more accurate results for transient steering and tractive inputs. The model represents a general tracked vehicle having rear or front sprockets, with parameters for center of gravity, wheel positions, number of wheels, and track-pretention. To calculate longitudinal and lateral forces, a transient shear model is used. Shear stress under each track pad is assumed to be a function of shear displacement. The contact time formulation used in shear displacement calculation is improved to gain accuracy for transient and zero track speed conditions.

Subject Keywords

Tracked vehicle, Steering, Transient lateral and longitudinal dynamics, Shear model

URI

https://hdl.handle.net/11511/31621

Journal

JOURNAL OF TERRAMECHANICS

DOI

https://doi.org/10.1016/j.jterra.2017.07.001

Collections

Graduate School of Natural and Applied Sciences, Article

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Citation Formats

M. N. Ozdemir, V. Kilic, and Y. S. Ünlüsoy, “A new contact & slip model for tracked vehicle transient dynamics on hard ground,” JOURNAL OF TERRAMECHANICS, pp. 3–23, 2017, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/31621.