Laserfiche WebLink
<br />Straight Truck or Tractor <br />Turning Radius: Solutions <br /> <br />d <br /> <br /> <br />e <br /> <br />c <br /> <br />Front of <br />_ Straight <br />Truck or <br />Tractor <br /> <br />b <br /> <br />Terms <br /> <br />Symbol <br /> <br />Track <br />TR <br />TA <br />WB <br /> <br />Shown On Chart As <br /> <br />be, cd <br />ae <br />Angle B <br />be, de <br /> <br />Track <br />Turning Radius <br />Turning Angle-I nside Wheel <br /> <br />Wheelbase <br /> <br />a <br /> <br />TR Solution #1 <br /> <br />Turning Radius = Wheelbasa'sine Angle A = de/sine Angle A <br />Cotangent Angle A = Track/Wheelbase + Cotangent Turning Angle be/de + Cotangent Angle B <br /> <br />Example: Given: WB = 19B, Track = 77, TA = 300 <br />CotangentAngleA = 77/198 + 1.7321 = 2.121 <br />From Table of sines: Sine angle A = .42646 <br />Turning Radius = 1981.42646 = 464.3 inches <br /> <br />TR Solution #2 <br /> <br />Turning Radius = ae = V(ad)2 + (de)2 <br />ac = cb sineC/sineB <br /> <br />where de = WB, ad = ac + cd where cd = Track <br />where cb = WB, Angle B = T A, Angle C = 900 . T A <br /> <br />Example: Given: WB = 198, Track <br />(198)(sine 90. 30) <br /> <br />77, TA = 300 <br /> <br />sine 300 <br /> <br />(198}(sine 600 )/sine 300 <br /> <br />( 198)(.866)/.5 <br /> <br />342.9 <br /> <br />ac = <br /> <br />ad = 342.9+ 77 = 419.9 <br />ae2= ad2 + de2 = (419.9)2 + (19B)2 = 176341 + 39204 215545 <br /> <br />ae = V 215545 = 464.3 inches = TR <br /> <br />TR Solution #3 <br /> <br />From TR.Graph A determine Turning Radius from known Wheelbase and Turning Angle. To value <br />obtained from TR.Graph A add Track Correction from TR.Graph B. <br /> <br />Example: <br /> <br />Given: WB = 198, Track <br />TR-Graph A -+ 454 <br />TR-Graph B -+ 10.8 <br /> <br />464.8 inches TR <br /> <br />77, TA, = 300 <br /> <br />16 <br />