m-smac Input Manual Introduction Analytical Approach: Collision Routine Analytical Approach: Tire Forces Extensions and refinements Background Notes on Input Instructions Simulation Program control Card 1 - Simulation Program control Card 1, Seq 1 - Print Interval Change Option Example - Print Interval Change Initial Conditions Card 2 - Initial Conditions - Veh1 Card 3 -Initial Conditions: Veh2 Dimensional and Inertial Properties Card 4 - Dimensional and Inertial Properties: Veh1 Card 5 - Dimensional and Inertial Properties: Veh2 Tire Properties Card 6 - Tire Properties: Veh1 Card 7 - Tire Properties: Veh2 DISCUSSION: Cornering Stiffness Further Reading Examples - Tire Cornering Stiffness Calculation DISCUSSION: Moment of Inertia Braking/Tractive Force Tables Card 8 - Braking/Tractive Force Tables: Veh1 Card 9 - Braking/Tractive Force Tables: Veh2 Example: Braking/Tractive Force input tables Example: Braking/Tractive Force input tables Example: PCTOPT (% Force inputs option) inputs Example: Variable increment (VARINC) inputs Steer Tables Card 10 - Steer Tables: Veh1 Card 11 - Steer Tables: Veh2 Terrain Friction Coefficients Card 12 - Terrain Friction Coefficients DISCUSSION: Friction decrement with speed Collision Model, Crush Properties Card 13 - Collision Model, Crush Properties Card 14 - Coefficient of Restitution Card 14, Seq 1 - Coefficient of Restitution - Veh2 DISCUSSION: Collision Model Inputs Friction "Null Band" Impulsive Constraint "Snag" Card 16 - Impulsive Constraint "Snag" - Veh1, Veh2 Card 16, Seq 1 - Impulsive Restraint "Snag" - Veh3 Card 18 - Impulsive Restraint "Snag" Additional Options Card 19 - Pole Impact Option Example: Snag Option inputs Example: Pole Impact inputs DISCUSSION: Snag Option Refinement in the Simulation of Structural Interactions During Collisions DISCUSSION: Pole Impacts Articulated Vehicle Option Card 20 - Articulated Vehicle Option: Veh1 Card 22 - Articulated Vehicle Option: Veh1 Card 21 - Articulated Vehicle Option: Veh2 Card 23 - Articulated Vehicle Option: Veh2 Example: Tractor-trailer option inputs DISCUSSION: Articulated Vehicle Option TRACTOR MOMENT OF INERTIA TRAILER MOMENT OF INERTIA TRUCK/TRAILER TIRE PROPERTIES DISCUSSION: Bus Properties Dual & Tandem Tire Options Card 24 - Dual & Tandem Tire Options Steer Degree-of-Freedom Card 25 - Steer Degree-of-Freedom: Veh1 Card 25, Seq 1 - Steer Degree-of-Freedom: Veh 1 Card 26 - Steer Degree-of-Freedom: Veh2 Card 26, Seq 1 - Steer Degree-of-Freedom: Veh 2 Example: Steer degree-of-freedom option inputs Barrier Option Card 27 - Barrier Option Card 28 - Barrier Option Card 29 - Barrier Option Example: Barrier option inputs Polygon Friction Zone Option Card 30 - Polygon Friction Zone Option Card 31 - Polygon Friction Zone Option Card 32 - Polygon Friction Zone Option Example: Polygon friction zone option Cornering Stiffness Tables Card 40 - Cornering Stiffness Tables: Veh1 Card 45 - Cornering Stiffness Tables: Veh2 TIRMU Tables Card 44 - TIRMU Tables: Veh1 Card 49 - TIRMU Tables: Veh2 3rd Vehicle Option Cards Required to Add a 3rd Vehicle in m-smac Card 52 - Initial Conditions: Veh3 Card 54 - Dimensional and Inertial Properties: Veh3 Card 56 - Tire Properties - Veh3 Card 58 - Braking/Tractive Force Tables: Veh3 Card 60 - Steer Tables - Veh3 Card 98 - Secondary Collision Model - Veh1 Trailer or Veh3 Card 99 - Veh#3/Trailer Release Option DISCUSSION: Damage Measurements Damage Measurements, POI & POR Targets Card 80 - Damage Measurements - Veh1 Card 85 - Damage Measurements - Veh2 Card 86 - Positions of Impact Card 87 - Positions of Rest SMAC/EDSMAC Compatibility Options Card 90 - SMAC/EDSMAC Compatibility Options SMAC Compatibility Options - (Card 90) (cont.) Card 91 - SMAC Compatibility Options DISCUSSION: Side-Slaps & Secondary Collisions Impact Configuration SetIND Option Card 92 - Impact Configuration SetIND Option Card 93 - Outputs for CVS/ATB,Lightwave Card 94 - Refined Collision Model Inputs Refined Collision Model Inputs for Vehicle 1 - (Card 94) Card 95 - Refined Collision Model Inputs for Veh2 Optional Center of Collision Interface (CCI) Card 96 - Center of Collision Interface (CCI) Gravitational Forces Simulation Card 97 - Gravitational Forces Simulation Driver Model/Path Following Option Card 402 - Driver Model/Path Following Card 403 - Driver Model Path-Generator Option Card 404 - Driver Model Path-Generator Option Card 405 - Driver Model Path-Generator Option End of Input, Misc. Options Card 9999 - End of Input, Misc. Options DISCUSSION: Pedestrian and Occupant Trajectories Pedestrian Impact Accident Investigations Pedestrian Impact Accident Reconstruction References Appendix A:CRASH3 Table 8-1 (ref 28) Appendix A:CRASH3 Table 8-2 (ref 28) CONVERSION FACTORS Error Codes