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Tabulated Data TABLE OF CONTENTS VOLUME I A. VERTICAL LOAD VS. CHANGE IN ROLLING HEIGHT ...1 11 -00 - 22/G (90 PSI) 12.00 - 20/G (80 PSI) 15.00 - 22.5/H (90 PSI) CAMBER STIFFNESS VS. TIRE LOAD ......... 3 CORNERING STIFFNESS VS. TIRE LOAD. ..3 CIRCUMFERENTIAL STIFFNESS VS. TIRE LOAD. ...... 3 LATERAL SPRING RATE VS. TIRE LOAD. ......... 3 11.00 - 2216 (90 PSI) 12.00 - 20/G (80 PSI) 15.00 - 22.5/H (90 PSI) LATERAL SPRING RATE VS. INFLATION PRESSURE ..... 3 TABULATED DATA ................ 5 Circumferential Stiffness Cornering Stiffness Camber Stiffness Lateral Spring Rate Vertical Spring Rate For 9.00 - 20 E 9.00 - 20 F 10.00 - 20 F 10.00 - 20 G 17.00 - 22 F 11.00 - 22 G B. FX/FZ VS. FZ/FZ-RATED ON ASPHALT .....7 FXIFZ VS. VERTICAL LOAD ON ASPHALT ......... 8 FX/FZ VS. VELOCITY ON ASPHALT. ...:....... 9 FX/FZ VS. TEST RUNS ON ASPHALT ...........10 Firestone Transport I 10-20/F 8 100 PSI Goodyear Superhimiler 10-20/F @ 100 PSI General Power Jet 10-2O/F @ 100 PSI Goodyear Superhimi 1 er 11-22.5/F @ 100 PSI Firestone Transport I 12-20/H @ 120 PSI Uniroyal Unimaster Rib 15-22.5/l-1 I Research Injiiibt..Fl"" ILP 1 FX/FZ VS. NORMALIZED LOAD ON ASPHALT & CONCRET FXIFZ VS. VELOCITY ON ASPHALT & CONCRETE . , . 12 Firestone Transport I 10.00 x 20/F Goodyear Super Hi Miler 10.00 x 20/F FX/FZ VS. ASTM SKID NUMBER . 13 Firestone Transport I 10.00 x 20/F Goodyear Super Hi MIler 10.00 x 20/F C. FXIFZ VS. VELOCITY ON DRY ASPHALT @ 0.5, 1.0 ?I 1.5 x RATED LOAD . 15 FX/FZ VS. FZ/FZ-RATED ON WET JENNITE @ 20 MPH. 17 FX/FZ VS. FZ/FZ-RATED @ 40 MPH . 17 10 x 20/F on Asphalt 15 x 22.5/H on Concrete 10 x 20lF on Concrete FX/FZ VS. VELOCITY @ RATED LOAD. 17 10 x 20/F Asphalt 10 x 20/F Concrete 15 x 22.5/H Concrete FX/FZ VS. FZ/FZ0RATED @ 85 PSI & 50 PSI. 18 On Dry Asphalt 60 MPH Dry Asphalt 40 MPH Wet Jennite 20 MPH E. TABULATED RESULTS. , . .19-20 Fx/Fz vs. Fz on Wet Jennite @ 20 MPH on Dry Asphalt @ 40 MPH on Dry Asphalt @ 60 MPH F. CORNERING STIFFNESS VS. VERTICAL LOAD . , , . , . 21 FX/FZ VS. PERCENT SLIP @ 40 MPH & RATED LOAD. ... 22 FX/FZ VS. FZ/FZ RATED @ 20 MPH, 40 MPH, & 55 MPH. 23-25 Uniroyal Fleetmaster Super-Lug Firestone Transport 200 Goodyear Super Hi Miler General GTX Firestone Transport I Goodyear Custom Cross Rib TABULATED DATA ............26 Peak and Slide Values of Fx/Fz Goodyear Super Hi Miler Firestone Transport 200 Firestone Transport I Goodyear Custom Cross Rib General GTX Uniroyal Fleetrnaster Super-Lug FY/FZ VS. SLIP ANGLE @ 20, 40, & 55 MPH; RATED LOAD. 27 FYIFZ VS. SLIP ANGLE @ 0.5, 1.0 & 1.5 X RATED LOAD; 20 MPH FOR THE SAME 6 TIRES IN THIS REFERENCE MA- TERIAL. ...................28 TABULAR FLAT-BED TEST RESULTS FOR THE SIX TIRES. ..29 Vertical Load Lateral Force @ Slip Angle = -lo,0" & lo Cornering Stiffness G. TABULATED DATA .............30 Peak and Slide Values of Fx/Fz on -Wet Concrete Goodyear Super Hi Miler Firestone Transport 200 Firestone Transport I Goodyear Custom Cross Rib General GTX Uniroyal Fl eetmaster Super-Lug FX/FZ PEAK VALUES VS. VELOCITY 8 RATED LOAD. ....31 FX/FZ SLIDE VALUES VS. VELOCITY 8 RATED LOAD ...32 FX/FZ PEAK VALUES VS. FZ/FZ-RATED @ 55 MPH .....33 FX/FZ SLIDE VALUES VS. FZ/FZ-RATED @ 55 MPH. ..34 FY/FZ VS. SLIP ANGLE @ 40 MPH, 0.5 x RATED LOAD . -35 FY/FZ VS. SLIP ANGLE 8 55 MPH, 1.0 x RATED LOAD ON -WET CONCRETE FOR THE FOLLOWING TIRES . .36 Firestone Transport I General GTX Goodyear Super Hi Miler Firestone Transport 200 Goodyear Custom Cross Rib Uniroyal Fleetmaster Super-Lug Uniroyal Triple Tread (10 x 20/F) B.F. Goodrich Milesaver Radial Steel H.D.R.- (10R20G) B.F. Goodrich Milesaver Radial Steel H.D.B.- (10R20G) Goodyear Unisteel R-1 (10R20G) Firestone Power Drive (10 x 20/F) Uniroyal Fleetmaster Super-Lug (10 x 20/F) Firestone Hiway Mileage (12.5 x 22.5 G) Michelin Radial XZA (llR20H) Michelin Radial XZA (11R 22.5 H) FX/FZ VS. FZ/FZ-RATED @ 20, 40 & 55 MPH .....38-40 Firestone Hiway Mileage (12.5 x 22.5G) Michelin Radial XZA (llR20H) Michelin Radial XZA (llR22.5H) FX/FZ VS. FZ/FZ-RATED @ 20, 40, & 55 MPH. ....41-43 Goodyear Unisteel R-1 (10R20G) Uniroyal Triple Tread (10 x 20/F) B.F. Goodrich Radial Steel H.D.R. (10R20G) Firestone Power Drive (10 x 20F) B.F. Goodrich Milesaver Radial H.D.B. (10R20G) FY/FZ VS. SLIP ANGLE @ 20 MPH; 0.5 & 1.5 RATED LOAD ............... 44-45 FY/FZ VS. SLIP ANGLE @ RATED LOAD; 20, 40 & 55MPH. .............46-48 Firestone Hiway Mileage (12.5 x 22.56) Michelin Radial XZA (12R 22.5H) Firestone Power Drive (10 x 20F) B.F. Goodrich Milesaver Radial Steel H.D.R.- (10R20G) FY/FZ VS. SLIP ANGLE @ RATED LOAD; 20, 40 & 55MPH ...................49-51 Goodyear Custom Hi Miler (8.75 x 16.5 E) Firestone Transport 500 (8.00 x 16.5D) Goodyear Custom ~lexsteel(8.00R 16.5E) Goodyear Super Singje Hi Miler (10.00 x 16.5E) Michelin Radial XCA (8.00R 16.5 E) Firestone Town & Country Truck (8.00 x 16.5D) FY VS. SLIP ANGLE @ LOAD = 2050 LB. ........ .53 Firestone Transport 500 (8.00 x 16.5D) Michelin Radial XCA (8.00R 16.5 E) General Jumbo Power Jet (8.00 x 16.5D) CORNERING STIFFNESS VS. FZ ...........55 Uniroyal Triple Tread 10 x 20 F B.F. Goodrich Milesaver Radial Steel H.D.R.- 10R20G Goodyear Unisteel R-1 1OR20G & Others ... CORNERING STIFFNESS VS. FZ ...........57 Firestone Hiway Mileage 12.5 x 22.5 G Michelin Radial XZA llR20H Michelin Radial XZA 11R 22.5 H 1. CORNERING STIFFNESS VS. VERTICAL LOAD. .......59 FXIFZ VS. VELOCITY @ RATED LOAD ON -DRY CONCRETE. ..60 FXIFZ VS. FZIFZ-RATED 8 20 MPH ON -DRY CONCRETE ...61 FX/FZ VS. VELOCITY @ RATED LOAD ON -WET CONCRETE. 62 FX/FZ VS. FZ/FZ-RATED 8 20 MPH ON -WET CONCRETE ...63 FOR THE FOLLOWING 10R20G TIRES Firestone Transteel Firestone Transteel Traction Goodyear Uni steel R-1 Goodyear Unisteel L-1 Michelin XZA Michelin XZZ TABULATED DATA .............65 Peak and Slide Values of FxlFz On Both Dry & -Wet Surfaces Firestone Transteel Goodyear Unisteel R-1 Michelin XZA Firestone Transteel Traction Goodyear Unisteel L-1 Michelin XZZ FYIFZ VS. SLIP ANGLE i) 20 MPH; 1.5 x Rated Load on Dry Concrete. .66 ii) 55 MPH; Rated Load on Dry Concrete. .67 iii) 20 MPH; 0.5 x Rated Load on Wet Concrete. .68 iv) 55 MPH; Rated Load on Wet Concrete. .69 !I, NORMALIZING LONGITUDINAL FORCE VS. VERTICAL LOAD . -70 NORMALIZING LONGITUDINAL FORCE VS. VELOCITY. .... .70 10.00 x 20/F--3 Different Manufacturers 11 x 22.5/F 12.00 x 20/H 15 x 22.5/H NORMALIZED LONGITUDINAL FORCE VS. VELOCITY .....-70 10 x 20/F--2 Different Manufacturers On Four Different Surfaces NORMALIZED SIDE FORCE VS. SLIP ANGLE .........70 @ 0.5 & 1.5 x Rated Load 10.00 x 20 Tires @ 32 km/hr Radial Ply, Rib Tread Bias Ply, Rib Tread Bias Ply, Lug Tread N. CORNERING STIFFNESS VS. VERTICAL LOAD. ........71 Bias Rib Tires Radial Rib Tires Bias Lug Tires Radial Lug Tires FX/FZ VS. SPEED @ RATED LOAD ON & WET CONCRETE. .....................72-73 FX/FZ VS. FZ/FZ RATED 8 20 MPH ON -DRY & WET CONCRETE. .............-74-75 Goodyear Custom Cross Rib Uniroyal Fleetmaster Super-Lug Firestone Transport 200 Goodyear Super Hi Miler General GTX Firestone Transport I FX/FZ PEAK & SLIDE VALUES VS. SPEED ........76-79 @ Rated Load on Dry & Wet Concrete NORMALIZED LATERAL FORCE FY/FZ VS. SLIP ANGLE . 80-81 @ Rated Load, 55 MPH on Dry & -Wet Concrete Radial Rib & Lus" Bias Rib & Lug 0. CORNERING STIFFNESS VS. NORMAL LOAD . .92 12.5 x 22.5G @ 100 PSI 10.0 x 20.0F @ 100 PSI 8.75 x 16.5E @ 75 PSI 8.0 x 16.5D @ 75 PSI Q. GRAPHICAL COMPARISONS ..............85-90 Locked Wheel Braking Force Coefficient on Concrete Peak Braking Force Coefficient on Concrete Peak Lateral Force Coefficient on Concrete Locked Wheel Braking Force Coefficient on Asphalt Peak Braking Force Coefficient on Asphalt Peak Lateral Force Coefficient on Asphalt TABULATED SUMMARY FOR THE ABOVE .........91-92 CORRELATION BETWEEN TRACTION PROPERTIES .......93 STANDARD DEVIATION BETWEEN PAIRS OF TIRES .....,94 COMPARISON OF TRACTION PROPERTIES ........95-96 On a Smooth Concrete Pavement On a Coarse Asphalt Pavement TABULATED DATA . , . 97 Lateral Force vs. Inflation Pressure, Load, Steer Angle Aligning Moment vs. Inflation Pressure, Load, Steer Angle Firestone Transport 110 I. TABULATED DATA Lateral Force vs. Inflation Pressure, Load & Steer Angle Aligning Moment vs. Inflation Pressure, Load & Steer Angle For the Following Tires Firestone Transport WO ...98 Goodyear Rib Himiler ......99 Firestone Town & Country Truck .......100 Goodrich Milesaver Radial Steel HDR ...101 Goodyear Glas Guard XG ...,102 General Jumbo Power Jet Commercial . ,103 Goodyear Glas Guard. .I04 GRAPHICAL REPRESENTATION & TABULATED DATA. ...105-194 Fy vs. Slip Angle & Normal Force Fy vs. Slip Angle, Fz & Velocity Normalized Tractive Force vs. Time Elapsed Lateral Force vs. Sl i p .Angle All for Firestone 8 80 PSI DYNAMOMETER Fy/Fz vs. Slip Angle & Fz @ 40 MPH - 1-9-76 ............... .I95 Fy/Fz vs.
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