Prediction of Track Tension when Traversing an Obstacle

Doyle, George R.; Workman, G. H.

doi:10.4271/790416

Cited by 4 publications

(3 citation statements)

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“…The track model employed in [17] assumes quasi-static track response, and uniform tension throughout the entire track loop. In addition, shear forces beneath the roadwheels were modeled assuming they were uniformly distributed and track bridging was approximated using kinematic relations similar to those employed in [8,9]. These simpli®cations limit the ®delity of this model.…”

Section: Introductionmentioning

confidence: 99%

“…Subsequent developments [8±16] also employed the rigid terrain assumption. Doyle and Workman [8] and Garnich and Grimm [9] both considered uneven (rigid) terrain and simple kinematic models for track bridging. Sankar et al [12] considered the random roughness of the terrain, and Rubinstein and Galili [14] took into account soil dissipation.…”

Section: Introductionmentioning

confidence: 99%

“…Deformable (radial spring-damper) wheel models were employed by Garnich and Grimm [9], Dhir and Sankar [13], and Rubinstein and Galili [14]. Models of the vehicle track varied from no track [7], to pure spring models [11±13, 17], to kinematic models that solely account for track bridging [8,9,14]. A dynamic track model, proposed by Galaitsis [10], uses a rigid-bar shoe model with spring-damper connections and¯at, rigid terrain.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Track-Wheel-Terrain Interaction Model for Dynamic Simulation of Tracked Vehicles

Dong¹,

Perkins²

2002

Vehicle System Dynamics

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A mathematical model of track-wheel-terrain interaction is presented that supports the dynamic simulation of tracked vehicles. This model combines approximate and known constitutive laws for terrain response with a new representation for the track segment. The resulting track-wheel-terrain model allows the computation of the track tension and the normal and shear forces at the track-terrain interface as the track negotiates terrain of arbitrary pro®le. A key feature of this model is the uniform treatment of contact between the track and the roadwheels and the track and the terrain. Treating both contact problems in the same manner signi®cantly simpli®es the problem formulation and also reduces dif®culties in computing points of track-wheel and track-terrain separation. The model takes the form of a two-point nonlinear boundary value problem that accounts for tension variations along the track (due to the non-uniformly distributed normal pressure and traction), track extensibility, and geometrically large (nonlinear) track de¯ections. Solutions are obtained using a ®nite element formulation. Both the model and the solution method are formulated for implementation within a multibody dynamics code for simulating full vehicles. Several examples illustrate the capabilities of the proposed model.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%