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Abstract. The handling behaviour of skid-steered tracked vehicles is more complex
than conventional wheeled vehicles because of their non-linear characteristics. One
of the traditional methods used for establishing the handling of
wheeled vehicles is the constant radius test, where the variation
of steer angle with lateral acceleration is investigated. There have
been no comparable studies either experimentally or theoretically for a
tracked vehicle for this type of test. With the introduction
of a variable-steer-ratio (ratio of sprocket angular speeds) system on
tracked vehicles it may be possible to perform this test
experimentally. This study addresses the problem of producing a theoretical
prediction for the constant-radius test for a current in-service tracked
vehicle, Combat Vehicle Reconnaissance (Tracked) CVR(T) manufactured by Alvis in
the UK. A model of a general skid-steer tracked vehicle
is developed and validated against experimental data from a trial
on CVR(T). The model is then used to predict the
results for a constant radius turn for this vehicle. The
results show that the CVR(T) initially understeers before going into
oversteer.
Related topics:
armoured vehicle design, armoured vehicles, tracked vehicles, mobility
View first page of "Purdy: Handling Of High-Speed Tracked Vehicles"
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