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Road Loads

Road Loads. Free body diagram Fundamental relations Power required for road loads. D A. x. h a. Wsin θ. Wcos θ. W/g a x. W. B. h. R xf. z. F xf. R hx. θ. A. R xr. b. h h. R hz. c. F xr. W f. L. d h. W r. Recall vehicle FBD. Road Loads - drag. Road Loads - rolling.

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Road Loads

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  1. Road Loads Free body diagram Fundamental relations Power required for road loads

  2. DA x ha Wsinθ Wcosθ W/g ax W B h Rxf z Fxf Rhx θ A Rxr b hh Rhz c Fxr Wf L dh Wr Recall vehicle FBD

  3. Road Loads - drag

  4. Road Loads - rolling Rolling Resistance as a constant Rolling Resistance as Function of Velocity

  5. Road Loads - grade grade Remember: convert grade to angle

  6. Total Road Loads, Power Spreadsheet on website:

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